ci: Add Docker support

feat: Sync location with query param / hash
feat: Return location info and Hijri date from the prayer times endpoint
2026-02-21 02:07:22 +03:00 · 2026-02-21 02:07:22 +03:00 · 2026-02-21 02:07:22 +03:00 · 2026-02-21 01:50:59 +03:00 · 2026-02-21 01:50:59 +03:00 · 2026-02-21 01:50:59 +03:00
28 changed files with 2205 additions and 9416 deletions
@@ -1,2 +1,8 @@
-/.idea
-*.sqlite3*
+.git
+.gitignore
+
+prayertimes.sqlite3
+prayertimes.sqlite3-wal
+prayertimes.sqlite3-shm
+
+**/*.log
@@ -0,0 +1,26 @@
+FROM golang:1.25-bookworm AS builder
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath -ldflags="-s -w" -o /out/prayertimes .
+
+FROM debian:bookworm-slim
+
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y ca-certificates tzdata \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY --from=builder /out/prayertimes /usr/local/bin/prayertimes
+
+ENV PORT=8000
+ENV DB_PATH=/data/prayertimes.sqlite3
+
+EXPOSE 8000
+
+CMD ["/usr/local/bin/prayertimes"]
@@ -0,0 +1,410 @@
+openapi: 3.0.3
+info:
+  title: Diyanet Namaz Vaktim API
+  version: 1.0.0
+  description: |
+    OpenAPI spec derived from decompiled Android app usage.
+    Base URL and endpoints reflect what the client calls.
+servers:
+  - url: https://namazvakti.diyanet.gov.tr/api
+security:
+  - basicAuth: []
+tags:
+  - name: PrayerTimes
+  - name: Locations
+  - name: Content
+  - name: Mosques
+components:
+  securitySchemes:
+    basicAuth:
+      type: http
+      scheme: basic
+  schemas:
+    ResultMessage:
+      type: object
+      properties:
+        messageType:
+          type: integer
+          nullable: true
+        messageContent:
+          type: string
+          nullable: true
+        messageCode:
+          type: integer
+          nullable: true
+    PrayerTime:
+      type: object
+      properties:
+        imsak:
+          type: string
+          nullable: true
+        gunes:
+          type: string
+          nullable: true
+        ogle:
+          type: string
+          nullable: true
+        ikindi:
+          type: string
+          nullable: true
+        aksam:
+          type: string
+          nullable: true
+        yatsi:
+          type: string
+          nullable: true
+        gunes_dogus:
+          type: string
+          nullable: true
+        gunes_batis:
+          type: string
+          nullable: true
+        kible_saati:
+          type: string
+          nullable: true
+        hicri_tarih_uzun:
+          type: string
+          nullable: true
+        hicri_tarih_kisa:
+          type: string
+          nullable: true
+        miladi_tarih_uzun:
+          type: string
+          nullable: true
+        miladi_tarih_uzun_Iso8601:
+          type: string
+          nullable: true
+        miladi_tarih_kisa_Iso8601:
+          type: string
+          nullable: true
+        imsak_bg:
+          type: string
+          nullable: true
+        gunes_bg:
+          type: string
+          nullable: true
+        ogle_bg:
+          type: string
+          nullable: true
+        ikindi_bg:
+          type: string
+          nullable: true
+        aksam_bg:
+          type: string
+          nullable: true
+        yatsi_bg:
+          type: string
+          nullable: true
+        ayin_sekli_url:
+          type: string
+          nullable: true
+    MyLocation:
+      type: object
+      description: Location object returned under "konum".
+      properties:
+        konum_Id:
+          type: integer
+          nullable: true
+        timezone:
+          type: string
+          nullable: true
+      additionalProperties: true
+    ResultLocation:
+      type: object
+      properties:
+        konum:
+          $ref: '#/components/schemas/MyLocation'
+        namazVakti:
+          type: array
+          items:
+            $ref: '#/components/schemas/PrayerTime'
+    ResultLocationResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          $ref: '#/components/schemas/ResultLocation'
+        serverTime:
+          type: string
+      example:
+        success: true
+        resultMessage:
+          messageType: 1
+          messageContent: Namaz vakitleri başarıyla oluşturuldu
+          messageCode: 200
+        resultObject:
+          konum:
+            konum_Id: 9340
+            timezone: Europe/Istanbul
+          namazVakti:
+            - imsak: "2026-02-19T06:19:00.0000000+03:00"
+              gunes: "2026-02-19T07:43:00.0000000+03:00"
+              ogle: "2026-02-19T13:20:00.0000000+03:00"
+              ikindi: "2026-02-19T16:18:00.0000000+03:00"
+              aksam: "2026-02-19T18:47:00.0000000+03:00"
+              yatsi: "2026-02-19T20:06:00.0000000+03:00"
+              gunes_dogus: "2026-02-19T07:50:00.0000000+03:00"
+              gunes_batis: "2026-02-19T18:40:00.0000000+03:00"
+              kible_saati: "2026-02-19T11:44:00.0000000+03:00"
+              hicri_tarih_uzun: 1 Ramazan 1447
+              hicri_tarih_kisa: 1.9.1447
+              miladi_tarih_uzun: 19 Şubat 2026 Perşembe
+              miladi_tarih_uzun_Iso8601: "2026-02-19T00:00:00.0000000+03:00"
+              miladi_tarih_kisa_Iso8601: 19.02.2026
+              imsak_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_imsak.png?v=6"
+              gunes_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_gunes.png?v=6"
+              ogle_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_ogle.png?v=6"
+              ikindi_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_ikindi.png?v=6"
+              aksam_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_aksam.png?v=6"
+              yatsi_bg: "https://namazvakti.diyanet.gov.tr/api/images/main_yatsi.png?v=6"
+              ayin_sekli_url: "https://namazvakti.diyanet.gov.tr/images/r1.gif"
+        serverTime: "20/02/2026 - 23:03"
+    PrayerTimeVersion:
+      type: object
+      additionalProperties: true
+    PrayerTimeVersionResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          $ref: '#/components/schemas/PrayerTimeVersion'
+        serverTime:
+          type: string
+    CityInfo:
+      type: object
+      additionalProperties: true
+    CityInfoResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          type: array
+          items:
+            $ref: '#/components/schemas/CityInfo'
+        serverTime:
+          type: string
+    Mosque:
+      type: object
+      additionalProperties: true
+    MosquesResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          type: array
+          items:
+            $ref: '#/components/schemas/Mosque'
+        serverTime:
+          type: string
+    SearchLocation:
+      type: object
+      properties:
+        cityID:
+          type: integer
+        cityNameTR:
+          type: string
+        stateNameTR:
+          type: string
+        countryNameTR:
+          type: string
+        cityNameEN:
+          type: string
+        stateNameEN:
+          type: string
+        countryNameEN:
+          type: string
+        latitude:
+          type: number
+          format: double
+        longitude:
+          type: number
+          format: double
+    SearchLocationsResults:
+      type: object
+      properties:
+        results:
+          type: array
+          items:
+            $ref: '#/components/schemas/SearchLocation'
+    SearchLocationsResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          $ref: '#/components/schemas/SearchLocationsResults'
+        serverTime:
+          type: string
+      example:
+        success: true
+        resultMessage:
+          messageType: 1
+          messageContent: İlçeler başarıyla listelendi
+          messageCode: 200
+        resultObject:
+          results:
+            - cityID: 9340
+              cityNameTR: İZNİK
+              stateNameTR: BURSA
+              countryNameTR: TÜRKİYE
+              cityNameEN: IZNIK
+              stateNameEN: BURSA
+              countryNameEN: TÜRKİYE
+              latitude: 40.429
+              longitude: 29.711
+        serverTime: "20/02/2026 - 23:01"
+    VersesHadithsPrayersArrays:
+      type: object
+      additionalProperties: true
+    VersesHadithsPrayersResponse:
+      type: object
+      properties:
+        success:
+          type: boolean
+        resultMessage:
+          $ref: '#/components/schemas/ResultMessage'
+        resultObject:
+          $ref: '#/components/schemas/VersesHadithsPrayersArrays'
+        serverTime:
+          type: string
+paths:
+  /NamazVakti/Aylik:
+    get:
+      tags: [PrayerTimes]
+      summary: Get monthly prayer times
+      description: |
+        Returns monthly prayer times for a location.
+        Provide either ilceId or latitude/longitude.
+      parameters:
+        - in: query
+          name: ilceId
+          schema:
+            type: integer
+          required: false
+        - in: query
+          name: latitude
+          schema:
+            type: number
+            format: double
+          required: false
+        - in: query
+          name: longitude
+          schema:
+            type: number
+            format: double
+          required: false
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ResultLocationResponse'
+  /Version:
+    get:
+      tags: [PrayerTimes]
+      summary: Get prayer time version
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/PrayerTimeVersionResponse'
+  /Search/GetByName:
+    get:
+      tags: [Locations]
+      summary: Search locations by name
+      parameters:
+        - in: query
+          name: searchText
+          schema:
+            type: string
+          required: true
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SearchLocationsResponse'
+  /ilce/GetByCoordinat:
+    get:
+      tags: [Locations]
+      summary: Get city/district info by coordinates
+      parameters:
+        - in: query
+          name: latitude
+          schema:
+            type: number
+            format: double
+          required: true
+        - in: query
+          name: longitude
+          schema:
+            type: number
+            format: double
+          required: true
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/CityInfoResponse'
+  /Cami/GetByCoordinat:
+    get:
+      tags: [Mosques]
+      summary: Get mosques near coordinates
+      parameters:
+        - in: query
+          name: latitude
+          schema:
+            type: number
+            format: double
+          required: true
+        - in: query
+          name: longitude
+          schema:
+            type: number
+            format: double
+          required: true
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/MosquesResponse'
+  /AyetDuaHadis/GetAll:
+    get:
+      tags: [Content]
+      summary: Get verses, hadiths, and prayers
+      parameters:
+        - in: query
+          name: dil
+          schema:
+            type: string
+          required: true
+          description: Language code (e.g., tr)
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VersesHadithsPrayersResponse'
@@ -0,0 +1,16 @@
+services:
+  prayertimes:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: prayertimes
+    ports:
+      - "8000:8000"
+    environment:
+      PORT: "8000"
+      DB_PATH: "/data/prayertimes.sqlite3"
+    volumes:
+      - ./prayertimes.sqlite3:/data/prayertimes.sqlite3
+      - ./prayertimes.sqlite3-wal:/data/prayertimes.sqlite3-wal
+      - ./prayertimes.sqlite3-shm:/data/prayertimes.sqlite3-shm
+    restart: unless-stopped
@@ -1,62 +1,46 @@
 module prayertimes

-go 1.25
+go 1.25.0

 require (
-	github.com/PuerkitoBio/goquery v1.8.1
-	github.com/doug-martin/goqu/v9 v9.18.0
-	github.com/gofiber/fiber/v2 v2.42.0
+	github.com/doug-martin/goqu/v9 v9.19.0
+	github.com/gofiber/fiber/v3 v3.0.0
 	github.com/imroc/req/v3 v3.57.0
 	github.com/rs/zerolog v1.29.0
-	github.com/samber/lo v1.37.0
 	github.com/stretchr/testify v1.11.1
-	modernc.org/sqlite v1.21.0
+	modernc.org/sqlite v1.46.1
 )

 require (
 	github.com/andybalholm/brotli v1.2.0 // indirect
-	github.com/andybalholm/cascadia v1.3.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/gofiber/schema v1.6.0 // indirect
+	github.com/gofiber/utils/v2 v2.0.0 // indirect
 	github.com/google/go-querystring v1.2.0 // indirect
-	github.com/google/pprof v0.0.0-20230228050547-1710fef4ab10 // indirect
-	github.com/google/uuid v1.3.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	github.com/icholy/digest v1.1.0 // indirect
-	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
 	github.com/klauspost/compress v1.18.4 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.17 // indirect
-	github.com/mattn/go-runewidth v0.0.14 // indirect
-	github.com/philhofer/fwd v1.1.2 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/philhofer/fwd v1.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/quic-go/quic-go v0.57.1 // indirect
 	github.com/refraction-networking/utls v1.8.2 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
-	github.com/rivo/uniseg v0.4.4 // indirect
-	github.com/savsgio/dictpool v0.0.0-20221023140959-7bf2e61cea94 // indirect
-	github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee // indirect
-	github.com/tinylib/msgp v1.1.8 // indirect
+	github.com/tinylib/msgp v1.6.3 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	github.com/valyala/fasthttp v1.44.0 // indirect
-	github.com/valyala/tcplisten v1.0.0 // indirect
+	github.com/valyala/fasthttp v1.69.0 // indirect
 	golang.org/x/crypto v0.48.0 // indirect
-	golang.org/x/exp v0.0.0-20230304125523-9ff063c70017 // indirect
-	golang.org/x/mod v0.32.0 // indirect
+	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/net v0.50.0 // indirect
-	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.41.0 // indirect
 	golang.org/x/text v0.34.0 // indirect
-	golang.org/x/tools v0.41.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	lukechampine.com/uint128 v1.2.0 // indirect
-	modernc.org/cc/v3 v3.40.0 // indirect
-	modernc.org/ccgo/v3 v3.16.13 // indirect
-	modernc.org/libc v1.22.3 // indirect
-	modernc.org/mathutil v1.5.0 // indirect
-	modernc.org/memory v1.5.0 // indirect
-	modernc.org/opt v0.1.3 // indirect
-	modernc.org/strutil v1.1.3 // indirect
-	modernc.org/token v1.1.0 // indirect
+	modernc.org/libc v1.67.6 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
 )
@@ -1,43 +1,43 @@
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
-github.com/PuerkitoBio/goquery v1.8.1 h1:uQxhNlArOIdbrH1tr0UXwdVFgDcZDrZVdcpygAcwmWM=
-github.com/PuerkitoBio/goquery v1.8.1/go.mod h1:Q8ICL1kNUJ2sXGoAhPGUdYDJvgQgHzJsnnd3H7Ho5jQ=
-github.com/andybalholm/brotli v1.0.4/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ=
 github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
-github.com/andybalholm/cascadia v1.3.1 h1:nhxRkql1kdYCc8Snf7D5/D3spOX+dBgjA6u8x004T2c=
-github.com/andybalholm/cascadia v1.3.1/go.mod h1:R4bJ1UQfqADjvDa4P6HZHLh/3OxWWEqc0Sk8XGwHqvA=
 github.com/coreos/go-systemd/v22 v22.3.3-0.20220203105225-a9a7ef127534/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/denisenkom/go-mssqldb v0.10.0/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
-github.com/doug-martin/goqu/v9 v9.18.0 h1:/6bcuEtAe6nsSMVK/M+fOiXUNfyFF3yYtE07DBPFMYY=
-github.com/doug-martin/goqu/v9 v9.18.0/go.mod h1:nf0Wc2/hV3gYK9LiyqIrzBEVGlI8qW3GuDCEobC4wBQ=
+github.com/doug-martin/goqu/v9 v9.19.0 h1:PD7t1X3tRcUiSdc5TEyOFKujZA5gs3VSA7wxSvBx7qo=
+github.com/doug-martin/goqu/v9 v9.19.0/go.mod h1:nf0Wc2/hV3gYK9LiyqIrzBEVGlI8qW3GuDCEobC4wBQ=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
+github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/gofiber/fiber/v2 v2.42.0 h1:Fnp7ybWvS+sjNQsFvkhf4G8OhXswvB6Vee8hM/LyS+8=
-github.com/gofiber/fiber/v2 v2.42.0/go.mod h1:3+SGNjqMh5VQH5Vz2Wdi43zTIV16ktlFd3x3R6O1Zlc=
+github.com/gofiber/fiber/v3 v3.0.0 h1:GPeCG8X60L42wLKrzgeewDHBr6pE6veAvwaXsqD3Xjk=
+github.com/gofiber/fiber/v3 v3.0.0/go.mod h1:kVZiO/AwyT5Pq6PgC8qRCJ+j/BHrMy5jNw1O9yH38aY=
+github.com/gofiber/schema v1.6.0 h1:rAgVDFwhndtC+hgV7Vu5ItQCn7eC2mBA4Eu1/ZTiEYY=
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-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.0.0-20220906165146-f3363e06e74c/go.mod h1:YDH+HFinaLZZlnHAfSS6ZXJJ9M9t4Dl22yv3iI2vPwk=
-golang.org/x/net v0.3.0/go.mod h1:MBQ8lrhLObU/6UmLb4fmbmk5OcyYmqtbGd/9yIeKjEE=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
 golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220728004956-3c1f35247d10/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
 golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
 golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
 golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
 golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20201022035929-9cf592e881e9/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.4.0/go.mod h1:UE5sM2OK9E/d67R0ANs2xJizIymRP5gJU295PvKXxjQ=
 golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
 golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
@@ -191,31 +129,31 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU=
 gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
-lukechampine.com/uint128 v1.2.0 h1:mBi/5l91vocEN8otkC5bDLhi2KdCticRiwbdB0O+rjI=
-lukechampine.com/uint128 v1.2.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
-modernc.org/cc/v3 v3.40.0 h1:P3g79IUS/93SYhtoeaHW+kRCIrYaxJ27MFPv+7kaTOw=
-modernc.org/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
-modernc.org/ccgo/v3 v3.16.13 h1:Mkgdzl46i5F/CNR/Kj80Ri59hC8TKAhZrYSaqvkwzUw=
-modernc.org/ccgo/v3 v3.16.13/go.mod h1:2Quk+5YgpImhPjv2Qsob1DnZ/4som1lJTodubIcoUkY=
-modernc.org/ccorpus v1.11.6 h1:J16RXiiqiCgua6+ZvQot4yUuUy8zxgqbqEEUuGPlISk=
-modernc.org/ccorpus v1.11.6/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
-modernc.org/httpfs v1.0.6 h1:AAgIpFZRXuYnkjftxTAZwMIiwEqAfk8aVB2/oA6nAeM=
-modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
-modernc.org/libc v1.22.3 h1:D/g6O5ftAfavceqlLOFwaZuA5KYafKwmr30A6iSqoyY=
-modernc.org/libc v1.22.3/go.mod h1:MQrloYP209xa2zHome2a8HLiLm6k0UT8CoHpV74tOFw=
-modernc.org/mathutil v1.5.0 h1:rV0Ko/6SfM+8G+yKiyI830l3Wuz1zRutdslNoQ0kfiQ=
-modernc.org/mathutil v1.5.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
-modernc.org/memory v1.5.0 h1:N+/8c5rE6EqugZwHii4IFsaJ7MUhoWX07J5tC/iI5Ds=
-modernc.org/memory v1.5.0/go.mod h1:PkUhL0Mugw21sHPeskwZW4D6VscE/GQJOnIpCnW6pSU=
-modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
-modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
-modernc.org/sqlite v1.21.0 h1:4aP4MdUf15i3R3M2mx6Q90WHKz3nZLoz96zlB6tNdow=
-modernc.org/sqlite v1.21.0/go.mod h1:XwQ0wZPIh1iKb5mkvCJ3szzbhk+tykC8ZWqTRTgYRwI=
-modernc.org/strutil v1.1.3 h1:fNMm+oJklMGYfU9Ylcywl0CO5O6nTfaowNsh2wpPjzY=
-modernc.org/strutil v1.1.3/go.mod h1:MEHNA7PdEnEwLvspRMtWTNnp2nnyvMfkimT1NKNAGbw=
-modernc.org/tcl v1.15.1 h1:mOQwiEK4p7HruMZcwKTZPw/aqtGM4aY00uzWhlKKYws=
-modernc.org/tcl v1.15.1/go.mod h1:aEjeGJX2gz1oWKOLDVZ2tnEWLUrIn8H+GFu+akoDhqs=
+modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis=
+modernc.org/cc/v4 v4.27.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
+modernc.org/ccgo/v4 v4.30.1 h1:4r4U1J6Fhj98NKfSjnPUN7Ze2c6MnAdL0hWw6+LrJpc=
+modernc.org/ccgo/v4 v4.30.1/go.mod h1:bIOeI1JL54Utlxn+LwrFyjCx2n2RDiYEaJVSrgdrRfM=
+modernc.org/fileutil v1.3.40 h1:ZGMswMNc9JOCrcrakF1HrvmergNLAmxOPjizirpfqBA=
+modernc.org/fileutil v1.3.40/go.mod h1:HxmghZSZVAz/LXcMNwZPA/DRrQZEVP9VX0V4LQGQFOc=
+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/gc/v3 v3.1.1 h1:k8T3gkXWY9sEiytKhcgyiZ2L0DTyCQ/nvX+LoCljoRE=
+modernc.org/gc/v3 v3.1.1/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
+modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
+modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
+modernc.org/libc v1.67.6 h1:eVOQvpModVLKOdT+LvBPjdQqfrZq+pC39BygcT+E7OI=
+modernc.org/libc v1.67.6/go.mod h1:JAhxUVlolfYDErnwiqaLvUqc8nfb2r6S6slAgZOnaiE=
+modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
+modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
+modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
+modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
+modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.46.1 h1:eFJ2ShBLIEnUWlLy12raN0Z1plqmFX9Qe3rjQTKt6sU=
+modernc.org/sqlite v1.46.1/go.mod h1:CzbrU2lSB1DKUusvwGz7rqEKIq+NUd8GWuBBZDs9/nA=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
 modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
 modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
-modernc.org/z v1.7.0 h1:xkDw/KepgEjeizO2sNco+hqYkU12taxQFqPEmgm1GWE=
-modernc.org/z v1.7.0/go.mod h1:hVdgNMh8ggTuRG1rGU8x+xGRFfiQUIAw0ZqlPy8+HyQ=
@@ -1,18 +1,22 @@
 package api

 import (
+	"context"
 	"errors"
 	"fmt"
 	"net/http"
+	"strconv"
+	"strings"
 	"time"

-	"github.com/gofiber/fiber/v2"
-	"github.com/gofiber/fiber/v2/middleware/cors"
-	"github.com/gofiber/fiber/v2/middleware/favicon"
-	"github.com/gofiber/fiber/v2/middleware/filesystem"
-	"github.com/gofiber/fiber/v2/middleware/logger"
-	recover "github.com/gofiber/fiber/v2/middleware/recover"
+	"github.com/gofiber/fiber/v3"
+	"github.com/gofiber/fiber/v3/middleware/cors"
+	"github.com/gofiber/fiber/v3/middleware/favicon"
+	"github.com/gofiber/fiber/v3/middleware/logger"
+	"github.com/gofiber/fiber/v3/middleware/recover"
+	"github.com/gofiber/fiber/v3/middleware/static"

+	"prayertimes/pkg/hijricalendar"
 	"prayertimes/pkg/prayer"
 	"prayertimes/templates"
 )
@@ -22,17 +26,26 @@ type httpError struct {
 }

 type Services struct {
-	TimesProvider         prayer.TimesProvider
-	LocationTimesProvider prayer.LocationTimesProvider
+	PrayerProvider   PrayerProvider
+	LocationProvider LocationProvider
+}
+
+type PrayerProvider interface {
+	Get(ctx context.Context, locationID string) (prayer.TimesResult, error)
+	GetByCoords(ctx context.Context, coords prayer.Coordinates) (prayer.TimesResult, error)
+}
+
+type LocationProvider interface {
+	SearchLocations(ctx context.Context, query string) ([]prayer.Location, error)
+	SearchLocationsByCoords(ctx context.Context, coords prayer.Coordinates) ([]prayer.Location, error)
 }

 func New(services Services) *fiber.App {
 	app := fiber.New(fiber.Config{
-		Immutable:             true,
-		DisableStartupMessage: false,
-		ReadTimeout:           time.Second * 10,
-		WriteTimeout:          time.Second * 30,
-		ErrorHandler: func(ctx *fiber.Ctx, err error) error {
+		Immutable:    true,
+		ReadTimeout:  time.Second * 10,
+		WriteTimeout: time.Second * 30,
+		ErrorHandler: func(ctx fiber.Ctx, err error) error {
 			if errors.Is(err, prayer.ErrInvalidLocation) {
 				return ctx.Status(http.StatusUnprocessableEntity).JSON(httpError{
 					Message: err.Error(),
@@ -50,43 +63,233 @@ func New(services Services) *fiber.App {
 		cors.New(),
 	)

-	app.Get("/healthz", func(ctx *fiber.Ctx) error {
+	app.Get("/healthz", func(ctx fiber.Ctx) error {
 		return ctx.SendString("OK")
 	})

-	app.Get("/api/v1/diyanet/prayertimes", func(ctx *fiber.Ctx) error {
-		var times []prayer.Times
-		var err error
-
-		locationID := ctx.Query("location_id")
-		var loc struct {
-			Latitude  float64 `query:"latitude"`
-			Longitude float64 `query:"longitude"`
+	app.Get("/api/v1/diyanet/prayertimes", func(ctx fiber.Ctx) error {
+		var query struct {
+			LocationID string `query:"location_id"`
+			Latitude   string `query:"latitude"`
+			Longitude  string `query:"longitude"`
+			UTC        string `query:"utc"`
+		}
+		if err := ctx.Bind().Query(&query); err != nil {
+			return fmt.Errorf("failed to bind prayer times query parameters: %w", errors.Join(fiber.ErrBadRequest, err))
 		}

-		if locationID != "" {
-			times, err = services.TimesProvider.Get(ctx.Context(), locationID)
-		} else if err := ctx.QueryParser(&loc); err == nil {
-			times, err = services.LocationTimesProvider.GetByCoords(ctx.Context(), prayer.Coordinates{
-				Latitude:  loc.Latitude,
-				Longitude: loc.Longitude,
+		locationID := strings.TrimSpace(query.LocationID)
+		latitude := strings.TrimSpace(query.Latitude)
+		longitude := strings.TrimSpace(query.Longitude)
+		utc := strings.TrimSpace(query.UTC) == "1"
+
+		var (
+			result prayer.TimesResult
+			err    error
+		)
+
+		switch {
+		case locationID != "":
+			result, err = services.PrayerProvider.Get(ctx.Context(), locationID)
+		case latitude != "" && longitude != "":
+			lat, latErr := strconv.ParseFloat(latitude, 64)
+			if latErr != nil {
+				return fmt.Errorf("failed to parse latitude query parameter: %w", errors.Join(fiber.ErrBadRequest, latErr))
+			}
+			lng, lngErr := strconv.ParseFloat(longitude, 64)
+			if lngErr != nil {
+				return fmt.Errorf("failed to parse longitude query parameter: %w", errors.Join(fiber.ErrBadRequest, lngErr))
+			}
+
+			result, err = services.PrayerProvider.GetByCoords(ctx.Context(), prayer.Coordinates{
+				Latitude:  lat,
+				Longitude: lng,
 			})
-		} else {
-			return fmt.Errorf("%w: missing location id or coordinates", fiber.ErrBadRequest)
+		default:
+			return fmt.Errorf("failed to validate prayer times query parameters: %w", fiber.ErrBadRequest)
 		}

 		if err != nil {
-			return err
+			return fmt.Errorf("failed to fetch prayer times: %w", err)
 		}

-		ctx.Response().Header.Add(fiber.HeaderCacheControl, "max-age=86400")
+		location := result.Location
+		if location.Latitude != 0 || location.Longitude != 0 {
+			locations, locErr := services.LocationProvider.SearchLocationsByCoords(ctx.Context(), prayer.Coordinates{
+				Latitude:  location.Latitude,
+				Longitude: location.Longitude,
+			})
+			if locErr != nil {
+				return fmt.Errorf("failed to enrich prayer times location from database: %w", locErr)
+			}
+			if len(locations) > 0 {
+				dbLocation := locations[0]
+				if strings.TrimSpace(dbLocation.Timezone) == "" {
+					dbLocation.Timezone = location.Timezone
+				}
+				location = dbLocation
+			}
+		}

-		return ctx.JSON(times)
+		mappedTimes, err := mapPrayerTimesForResponse(result.Times, location, utc)
+		if err != nil {
+			return fmt.Errorf("failed to map prayer times for response: %w", err)
+		}
+
+		ctx.Response().Header.Set(fiber.HeaderCacheControl, "max-age=86400")
+		return ctx.JSON(fiber.Map{
+			"location":    location,
+			"prayertimes": mappedTimes,
+		})
 	})

-	app.Use("/", filesystem.New(filesystem.Config{
-		Root: templates.HttpFS(),
-	}))
+	app.Get("/api/v1/diyanet/location", func(ctx fiber.Ctx) error {
+		var query struct {
+			Text      string `query:"query"`
+			Latitude  string `query:"latitude"`
+			Longitude string `query:"longitude"`
+		}
+		if err := ctx.Bind().Query(&query); err != nil {
+			return fmt.Errorf("failed to bind location query parameters: %w", errors.Join(fiber.ErrBadRequest, err))
+		}
+
+		query.Text = strings.TrimSpace(query.Text)
+		query.Latitude = strings.TrimSpace(query.Latitude)
+		query.Longitude = strings.TrimSpace(query.Longitude)
+
+		var (
+			locations []prayer.Location
+			err       error
+		)
+
+		switch {
+		case query.Text != "" && query.Latitude == "" && query.Longitude == "":
+			locations, err = services.LocationProvider.SearchLocations(ctx.Context(), query.Text)
+		case query.Text == "" && query.Latitude != "" && query.Longitude != "":
+			lat, latErr := strconv.ParseFloat(query.Latitude, 64)
+			if latErr != nil {
+				return fmt.Errorf("failed to parse latitude query parameter: %w", errors.Join(fiber.ErrBadRequest, latErr))
+			}
+			lng, lngErr := strconv.ParseFloat(query.Longitude, 64)
+			if lngErr != nil {
+				return fmt.Errorf("failed to parse longitude query parameter: %w", errors.Join(fiber.ErrBadRequest, lngErr))
+			}
+
+			locations, err = services.LocationProvider.SearchLocationsByCoords(ctx.Context(), prayer.Coordinates{
+				Latitude:  lat,
+				Longitude: lng,
+			})
+		default:
+			return fmt.Errorf("failed to validate location query parameters: %w", fiber.ErrBadRequest)
+		}
+		if err != nil {
+			return fmt.Errorf("failed to search locations: %w", err)
+		}
+
+		ctx.Response().Header.Set(fiber.HeaderCacheControl, "max-age=86400")
+		return ctx.JSON(fiber.Map{
+			"locations": locations,
+		})
+	})
+
+	app.Use("/", static.New("", static.Config{FS: templates.FS()}))

 	return app
 }
+
+type prayerTimesResponse struct {
+	Date      string `json:"date"`
+	DateHijri string `json:"date_hijri"`
+	Fajr      string `json:"fajr"`
+	Sunrise   string `json:"sunrise"`
+	Dhuhr     string `json:"dhuhr"`
+	Asr       string `json:"asr"`
+	Sunset    string `json:"sunset,omitempty"`
+	Maghrib   string `json:"maghrib"`
+	Isha      string `json:"isha"`
+}
+
+func mapPrayerTimesForResponse(times []prayer.Times, location prayer.Location, utc bool) ([]any, error) {
+	if utc {
+		result := make([]any, 0, len(times))
+		for _, item := range times {
+			dateHijri := item.DateHijri
+			if dateHijri == "" {
+				dateHijri = hijricalendar.ToISODate(item.Date)
+			}
+
+			result = append(result, prayer.Times{
+				Date:      item.Date.UTC(),
+				DateHijri: dateHijri,
+				Fajr:      item.Fajr.UTC(),
+				Sunrise:   item.Sunrise.UTC(),
+				Dhuhr:     item.Dhuhr.UTC(),
+				Asr:       item.Asr.UTC(),
+				Sunset:    item.Sunset.UTC(),
+				Maghrib:   item.Maghrib.UTC(),
+				Isha:      item.Isha.UTC(),
+			})
+		}
+		return result, nil
+	}
+
+	tz := time.UTC
+	if strings.TrimSpace(location.Timezone) != "" {
+		loadedTZ, err := loadTimezone(location.Timezone)
+		if err != nil {
+			return nil, fmt.Errorf("failed to load location timezone: %w", err)
+		}
+		tz = loadedTZ
+	}
+
+	result := make([]any, 0, len(times))
+	for _, item := range times {
+		dateHijri := item.DateHijri
+		if dateHijri == "" {
+			dateHijri = hijricalendar.ToISODate(item.Date)
+		}
+
+		result = append(result, prayerTimesResponse{
+			Date:      item.Date.In(tz).Format(time.DateOnly),
+			DateHijri: dateHijri,
+			Fajr:      formatHHMM(item.Fajr, tz),
+			Sunrise:   formatHHMM(item.Sunrise, tz),
+			Dhuhr:     formatHHMM(item.Dhuhr, tz),
+			Asr:       formatHHMM(item.Asr, tz),
+			Sunset:    formatHHMM(item.Sunset, tz),
+			Maghrib:   formatHHMM(item.Maghrib, tz),
+			Isha:      formatHHMM(item.Isha, tz),
+		})
+	}
+
+	return result, nil
+}
+
+func formatHHMM(value time.Time, tz *time.Location) string {
+	if value.IsZero() {
+		return ""
+	}
+	return value.In(tz).Format("15:04")
+}
+
+func loadTimezone(name string) (*time.Location, error) {
+	if strings.HasPrefix(name, "UTC") {
+		offsetText := strings.TrimPrefix(name, "UTC")
+		if offsetText == "" {
+			return time.UTC, nil
+		}
+
+		offsetHours, err := strconv.Atoi(offsetText)
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse utc offset timezone: %w", err)
+		}
+		return time.FixedZone(name, offsetHours*3600), nil
+	}
+
+	loc, err := time.LoadLocation(name)
+	if err != nil {
+		return nil, fmt.Errorf("failed to load iana timezone: %w", err)
+	}
+
+	return loc, nil
+}
@@ -1,38 +0,0 @@
-package database
-
-import (
-	"database/sql"
-	"fmt"
-	"net/url"
-
-	"github.com/doug-martin/goqu/v9"
-	goqusqlite3 "github.com/doug-martin/goqu/v9/dialect/sqlite3"
-	_ "modernc.org/sqlite"
-)
-
-func init() {
-	goqu.RegisterDialect("sqlite3", func() *goqu.SQLDialectOptions {
-		do := goqusqlite3.DialectOptions()
-		do.SupportsReturn = true
-		return do
-	}())
-}
-
-func NewSqliteDB(filename string) (*goqu.Database, error) {
-	pragmas := url.Values{
-		"_pragma": {
-			"journal_mode(WAL)",
-			"foreign_keys(1)",
-			"synchronous(NORMAL)",
-			"busy_timeout(5000)",
-		},
-	}.Encode()
-	dsn := fmt.Sprintf("%s?%s", filename, pragmas)
-
-	conn, err := sql.Open("sqlite", dsn)
-	if err != nil {
-		return nil, fmt.Errorf("failed to open database: %w", err)
-	}
-
-	return goqu.New("sqlite3", conn), nil
-}
@@ -1,11 +1,6 @@
 package net

 import (
-	"context"
-	"fmt"
-	"strings"
-
-	"github.com/PuerkitoBio/goquery"
 	"github.com/imroc/req/v3"
 )

@@ -15,30 +10,3 @@ var ReqClient = req.NewClient().
 	DisableAutoReadResponse().
 	EnableInsecureSkipVerify().
 	SetUserAgent(userAgent)
-
-func GetHTML(ctx context.Context, url string) (string, error) {
-	res, err := ReqClient.R().SetContext(ctx).SetRetryCount(3).Get(url)
-	if err != nil {
-		return "", fmt.Errorf("failed to get url: %w", err)
-	}
-	html, err := res.ToString()
-	if err != nil {
-		return "", fmt.Errorf("failed to read response body: %w", err)
-	}
-	return html, nil
-}
-
-func GetParsed(ctx context.Context, url string) (*goquery.Document, error) {
-	html, err := GetHTML(ctx, url)
-	if err != nil {
-		return nil, fmt.Errorf("failed to get html: %w", err)
-	}
-	doc, err := goquery.NewDocumentFromReader(strings.NewReader(html))
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse html: %w", err)
-	}
-	return doc, nil
-}
-
-type Fetcher struct {
-}
@@ -1,55 +1,54 @@
 package main

 import (
-	"database/sql"
 	"fmt"
 	"os"
+	"strings"

 	"github.com/rs/zerolog/log"

 	"prayertimes/internal/api"
-	"prayertimes/internal/database"
 	"prayertimes/internal/net"
-	"prayertimes/pkg/dbtimesprovider"
-	"prayertimes/pkg/diyanet"
+	"prayertimes/pkg/citydb"
 	"prayertimes/pkg/diyanetapi"
+	"prayertimes/pkg/diyanetcalc"
+	"prayertimes/pkg/diyanetprovider"
 )

 func main() {
-	port := getDefaultEnv("PORT", "8000")
-
-	services, shutdown, err := newServices()
-	if err != nil {
-		log.Fatal().Err(err).Msg("failed to init services")
-	}
-	defer shutdown()
-	app := api.New(services)
-
-	err = app.Listen(":" + port)
-	if err != nil {
-		log.Fatal().Err(err).Msg("exit with an error")
+	if err := run(); err != nil {
+		log.Fatal().Err(err).Msg("failed to run app")
 	}
 }

-func newServices() (api.Services, func(), error) {
-	diyanetAPIProvider := diyanetapi.New(net.ReqClient)
-	diyanetProvider := diyanet.New(net.GetParsed)
+func run() error {
+	port := getDefaultEnv("PORT", "8000")
+	dbPath := strings.TrimSpace(getDefaultEnv("DB_PATH", "./prayertimes.sqlite3"))
+	if dbPath == "" {
+		return fmt.Errorf("DB_PATH is not set")
+	}

-	db, err := database.NewSqliteDB(getDefaultEnv("DATABASE_URL", "app.sqlite3"))
+	locationProvider, err := citydb.Open(dbPath)
 	if err != nil {
-		return api.Services{}, nil, fmt.Errorf("failed to init db: %w", err)
+		return fmt.Errorf("failed to open city database: %w", err)
+	}
+	defer locationProvider.Close()
+
+	diyanetAPIProvider := diyanetapi.New(net.ReqClient)
+	diyanetCalcProvider := diyanetcalc.New()
+	prayerProvider := diyanetprovider.New(diyanetAPIProvider, diyanetCalcProvider)
+
+	services := api.Services{
+		PrayerProvider:   prayerProvider,
+		LocationProvider: locationProvider,
 	}

-	if err := dbtimesprovider.Migrate(db.Db.(*sql.DB)); err != nil {
-		return api.Services{}, nil, fmt.Errorf("failed to migrate database: %w", err)
+	app := api.New(services)
+	if err := app.Listen(":" + port); err != nil {
+		return fmt.Errorf("failed to listen on http port: %w", err)
 	}

-	return api.Services{
-			TimesProvider:         dbtimesprovider.New(db, diyanetProvider),
-			LocationTimesProvider: diyanetAPIProvider,
-		}, func() {
-			defer db.Db.(*sql.DB).Close()
-		}, nil
+	return nil
 }

 func getDefaultEnv(name string, defaultValue string) string {
@@ -0,0 +1,156 @@
+package citydb
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/doug-martin/goqu/v9"
+
+	_ "modernc.org/sqlite"
+
+	"prayertimes/pkg/prayer"
+)
+
+type Provider struct {
+	db *goqu.Database
+}
+
+func New(db *goqu.Database) Provider {
+	return Provider{db: db}
+}
+
+func Open(path string) (Provider, error) {
+	conn, err := sql.Open("sqlite", path)
+	if err != nil {
+		return Provider{}, fmt.Errorf("failed to open cities database: %w", err)
+	}
+
+	if err := conn.Ping(); err != nil {
+		return Provider{}, fmt.Errorf("failed to connect to cities database: %w", err)
+	}
+
+	return New(goqu.New("sqlite3", conn)), nil
+}
+
+func (p Provider) Close() error {
+	if err := p.db.Db.(*sql.DB).Close(); err != nil {
+		return fmt.Errorf("failed to close cities database: %w", err)
+	}
+
+	return nil
+}
+
+type locationRow struct {
+	ID             int     `db:"geoname_id"`
+	Name           string  `db:"name"`
+	ASCIIName      string  `db:"ascii_name"`
+	AlternateNames string  `db:"alternate_names"`
+	CountryCode    string  `db:"country_code"`
+	Timezone       string  `db:"timezone"`
+	Latitude       float64 `db:"latitude"`
+	Longitude      float64 `db:"longitude"`
+	DistanceSq     float64 `db:"distance_sq"`
+}
+
+func (p Provider) SearchLocations(ctx context.Context, query string) ([]prayer.Location, error) {
+	query = strings.TrimSpace(query)
+	if query == "" {
+		return []prayer.Location{}, nil
+	}
+
+	pattern := "%" + query + "%"
+
+	q := p.db.
+		From("cities").
+		Select(
+			goqu.I("geoname_id"),
+			goqu.I("name"),
+			goqu.I("ascii_name"),
+			goqu.COALESCE(goqu.I("alternate_names"), "").As("alternate_names"),
+			goqu.I("country_code"),
+			goqu.I("timezone"),
+			goqu.I("latitude"),
+			goqu.I("longitude"),
+			goqu.V(0).As("distance_sq"),
+		).
+		Where(
+			goqu.Or(
+				goqu.L("name LIKE ? COLLATE NOCASE", pattern),
+				goqu.L("ascii_name LIKE ? COLLATE NOCASE", pattern),
+				goqu.L("alternate_names LIKE ? COLLATE NOCASE", pattern),
+			),
+		).
+		Order(goqu.I("population").Desc(), goqu.I("name").Asc()).
+		Limit(50)
+
+	var rows []locationRow
+	if err := q.ScanStructsContext(ctx, &rows); err != nil {
+		return nil, fmt.Errorf("failed to query locations from cities database: %w", err)
+	}
+
+	locations := make([]prayer.Location, 0, len(rows))
+	for _, row := range rows {
+		locations = append(locations, prayer.Location{
+			ID:             row.ID,
+			Name:           row.Name,
+			ASCIIName:      row.ASCIIName,
+			AlternateNames: row.AlternateNames,
+			CountryCode:    row.CountryCode,
+			Timezone:       row.Timezone,
+			Latitude:       row.Latitude,
+			Longitude:      row.Longitude,
+		})
+	}
+
+	return locations, nil
+}
+
+func (p Provider) SearchLocationsByCoords(ctx context.Context, coords prayer.Coordinates) ([]prayer.Location, error) {
+	q := p.db.
+		From("cities").
+		Select(
+			goqu.I("geoname_id"),
+			goqu.I("name"),
+			goqu.I("ascii_name"),
+			goqu.COALESCE(goqu.I("alternate_names"), "").As("alternate_names"),
+			goqu.I("country_code"),
+			goqu.I("timezone"),
+			goqu.I("latitude"),
+			goqu.I("longitude"),
+			goqu.L(
+				"((latitude - ?) * (latitude - ?) + (longitude - ?) * (longitude - ?))",
+				coords.Latitude,
+				coords.Latitude,
+				coords.Longitude,
+				coords.Longitude,
+			).As("distance_sq"),
+		).
+		Order(
+			goqu.I("distance_sq").Asc(),
+			goqu.I("population").Desc(),
+		).
+		Limit(50)
+
+	var rows []locationRow
+	if err := q.ScanStructsContext(ctx, &rows); err != nil {
+		return nil, fmt.Errorf("failed to query locations by coordinates from cities database: %w", err)
+	}
+
+	locations := make([]prayer.Location, 0, len(rows))
+	for _, row := range rows {
+		locations = append(locations, prayer.Location{
+			ID:             row.ID,
+			Name:           row.Name,
+			ASCIIName:      row.ASCIIName,
+			AlternateNames: row.AlternateNames,
+			CountryCode:    row.CountryCode,
+			Timezone:       row.Timezone,
+			Latitude:       row.Latitude,
+			Longitude:      row.Longitude,
+		})
+	}
+
+	return locations, nil
+}
@@ -1,203 +0,0 @@
-package dbtimesprovider
-
-import (
-	"bufio"
-	"context"
-	"database/sql"
-	_ "embed"
-	"encoding/json"
-	"fmt"
-	"strings"
-	"time"
-
-	"github.com/doug-martin/goqu/v9"
-	"github.com/samber/lo"
-
-	"prayertimes/pkg/prayer"
-)
-
-//go:embed schema.sql
-var schema string
-
-//go:embed locations.jsonl
-var locationsJSON string
-
-type Provider struct {
-	db        *goqu.Database
-	provider  prayer.TimesProvider
-	clockFunc func() time.Time
-}
-
-func New(db *goqu.Database, provider prayer.TimesProvider) Provider {
-	return Provider{
-		provider:  provider,
-		clockFunc: time.Now,
-		db:        db,
-	}
-}
-
-func (p Provider) Name() string {
-	return "db:" + p.provider.Name()
-}
-
-func (p Provider) Get(ctx context.Context, location string) ([]prayer.Times, error) {
-	times, err := p.loadTimes(ctx, location)
-	if err != nil {
-		return nil, fmt.Errorf("failed to load prayer times from db: %w", err)
-	}
-	if len(times) > 0 {
-		return times, nil
-	}
-
-	times, err = p.provider.Get(ctx, location)
-	if err != nil {
-		return nil, fmt.Errorf("failed to get prayer times: %w", err)
-	}
-
-	if len(times) > 0 {
-		if err := p.saveTimes(ctx, location, times); err != nil {
-			return nil, fmt.Errorf("failed to save times to db: %w", err)
-		}
-	}
-
-	return times, nil
-}
-
-func Migrate(con *sql.DB) error {
-	db := goqu.New("sqlite3", con)
-	if _, err := db.Exec(schema); err != nil {
-		return fmt.Errorf("failed to migrate: %w", err)
-	}
-
-	count, _ := db.From("locations").Count()
-	if count > 0 {
-		return nil
-	}
-
-	type entry struct {
-		ID      int    `json:"id" db:"id"`
-		Country string `json:"country" db:"country"`
-		Region  string `json:"region" db:"region"`
-		City    string `json:"city" db:"city"`
-	}
-	s := bufio.NewScanner(strings.NewReader(locationsJSON))
-
-	tx, err := db.Begin()
-	if err != nil {
-		return fmt.Errorf("failed to begin tx: %w", err)
-	}
-	if err := tx.Wrap(func() error {
-		for s.Scan() {
-			var e entry
-			if err := json.Unmarshal(s.Bytes(), &e); err != nil {
-				return fmt.Errorf("failed to parse as json: %w", err)
-			}
-
-			q := tx.Insert("locations").
-				OnConflict(goqu.DoNothing()).
-				Rows(e)
-
-			if _, err := q.Executor().Exec(); err != nil {
-				return fmt.Errorf("failed to insert location: %w", err)
-			}
-		}
-
-		return nil
-	}); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-type prayerTimesRow struct {
-	ProviderID int64  `db:"provider_id"`
-	LocationID string `db:"location_id"`
-	Date       string `db:"date"`
-	Fajr       string `db:"fajr"`
-	Sunrise    string `db:"sunrise"`
-	Dhuhr      string `db:"dhuhr"`
-	Asr        string `db:"asr"`
-	Maghrib    string `db:"maghrib"`
-	Isha       string `db:"isha"`
-}
-
-func (r prayerTimesRow) toDomain() prayer.Times {
-	return prayer.Times{
-		Date:    r.Date,
-		Fajr:    r.Fajr,
-		Sunrise: r.Sunrise,
-		Dhuhr:   r.Dhuhr,
-		Asr:     r.Asr,
-		Maghrib: r.Maghrib,
-		Isha:    r.Isha,
-	}
-}
-
-func (p Provider) saveTimes(ctx context.Context, locationID string, times []prayer.Times) error {
-	providerID, err := p.saveProvider(ctx, p.provider.Name())
-	if err != nil {
-		return err
-	}
-
-	rows := lo.Map(times, func(item prayer.Times, _ int) prayerTimesRow {
-		return prayerTimesRow{
-			ProviderID: providerID,
-			LocationID: locationID,
-			Date:       item.Date,
-			Fajr:       item.Fajr,
-			Sunrise:    item.Sunrise,
-			Dhuhr:      item.Dhuhr,
-			Asr:        item.Asr,
-			Maghrib:    item.Maghrib,
-			Isha:       item.Isha,
-		}
-	})
-	q := p.db.
-		Insert("prayer_times").
-		OnConflict(goqu.DoNothing()).
-		Rows(rows)
-
-	if _, err := q.Executor().ExecContext(ctx); err != nil {
-		return fmt.Errorf("failed to save times: %w", err)
-	}
-
-	return nil
-}
-
-func (p Provider) loadTimes(ctx context.Context, locationID string) ([]prayer.Times, error) {
-	now := p.clockFunc()
-	today := now.UTC().Truncate(time.Hour * 24)
-
-	q := p.db.
-		From(goqu.T("prayer_times").As("pt")).
-		Join(goqu.T("providers").As("p"), goqu.On(goqu.I("p.id").Eq(goqu.I("pt.provider_id")))).
-		Where(
-			goqu.I("p.name").Eq(p.provider.Name()),
-			goqu.I("pt.location_id").Eq(locationID),
-			goqu.I("pt.date").Gte(today.Format(time.DateOnly)),
-		).
-		Limit(100)
-
-	var rows []prayerTimesRow
-	if err := q.ScanStructsContext(ctx, &rows); err != nil {
-		return nil, fmt.Errorf("failed to scan times: %w", err)
-	}
-
-	return lo.Map(rows, func(row prayerTimesRow, _ int) prayer.Times {
-		return row.toDomain()
-	}), nil
-}
-
-func (p Provider) saveProvider(ctx context.Context, name string) (int64, error) {
-	q := p.db.Insert("providers").
-		OnConflict(goqu.DoUpdate("name", goqu.Record{"name": name})).
-		Rows(goqu.Record{"name": name}).
-		Returning("id")
-	var id int64
-	_, err := q.Executor().ScanValContext(ctx, &id)
-	if err != nil {
-		return 0, fmt.Errorf("failed to insert provider: %w", err)
-	}
-	return id, nil
-}
@@ -1,122 +0,0 @@
-package dbtimesprovider
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"testing"
-	"time"
-
-	"github.com/doug-martin/goqu/v9"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	_ "modernc.org/sqlite"
-
-	"prayertimes/internal/database"
-	"prayertimes/pkg/prayer"
-)
-
-func testDB(t *testing.T) *goqu.Database {
-	t.Helper()
-
-	db, err := database.NewSqliteDB(":memory:")
-	require.NoError(t, err)
-
-	err = Migrate(db.Db.(*sql.DB))
-	require.NoError(t, err)
-
-	_, err = db.Insert("locations").Rows(goqu.Record{"id": 1}).Executor().Exec()
-	require.NoError(t, err)
-
-	t.Cleanup(func() {
-		db.Db.(*sql.DB).Close()
-	})
-
-	return db
-}
-
-type mockProvider func() ([]prayer.Times, error)
-
-func (m mockProvider) Get(ctx context.Context, location string) ([]prayer.Times, error) { return m() }
-
-func (m mockProvider) Name() string { return "mock" }
-
-func TestProvider_Get(t *testing.T) {
-	then := time.Date(2023, 3, 5, 0, 0, 0, 0, time.UTC)
-	tests := []struct {
-		name      string
-		setupDB   func(t *testing.T, db *goqu.Database)
-		provider  prayer.TimesProvider
-		clock     time.Time
-		assertRes func(t *testing.T, db *goqu.Database, times []prayer.Times, err error)
-	}{
-		{
-			name: "provider succeeds, empty db",
-			provider: mockProvider(func() ([]prayer.Times, error) {
-				return []prayer.Times{
-					{Date: "2023-03-04"},
-					{Date: "2023-03-05"},
-				}, nil
-			}),
-			clock: then,
-			assertRes: func(t *testing.T, db *goqu.Database, times []prayer.Times, err error) {
-				assert.NoError(t, err)
-				assert.Len(t, times, 2)
-
-				cnt, err := db.From("prayer_times").Count()
-				assert.NoError(t, err)
-				assert.Equal(t, int64(2), cnt)
-			},
-		},
-		{
-			name: "provider fails, empty db",
-			provider: mockProvider(func() ([]prayer.Times, error) {
-				return nil, fmt.Errorf("no")
-			}),
-			clock: then,
-			assertRes: func(t *testing.T, db *goqu.Database, times []prayer.Times, err error) {
-				assert.Error(t, err)
-				assert.Empty(t, times)
-			},
-		},
-		{
-			name: "provider fails, populated db",
-			setupDB: func(t *testing.T, db *goqu.Database) {
-				_, err := db.Insert("providers").Rows(goqu.Record{"id": 1, "name": "mock"}).Executor().Exec()
-				require.NoError(t, err)
-
-				_, err = db.Insert("prayer_times").Rows(
-					prayerTimesRow{ProviderID: 1, LocationID: "1", Date: "2023-03-04", Fajr: "01:00", Sunrise: "02:00", Dhuhr: "03:00", Asr: "04:00", Maghrib: "05:00", Isha: "06:00"},
-					prayerTimesRow{ProviderID: 1, LocationID: "1", Date: "2023-03-05", Fajr: "01:00", Sunrise: "02:00", Dhuhr: "03:00", Asr: "04:00", Maghrib: "05:00", Isha: "06:00"},
-					prayerTimesRow{ProviderID: 1, LocationID: "1", Date: "2023-03-06", Fajr: "01:00", Sunrise: "02:00", Dhuhr: "03:00", Asr: "04:00", Maghrib: "05:00", Isha: "06:00"},
-				).Executor().Exec()
-				require.NoError(t, err)
-			},
-			provider: mockProvider(func() ([]prayer.Times, error) {
-				return nil, fmt.Errorf("no")
-			}),
-			clock: then,
-			assertRes: func(t *testing.T, db *goqu.Database, times []prayer.Times, err error) {
-				assert.NoError(t, err)
-				assert.Len(t, times, 2)
-			},
-		},
-	}
-	for _, tt := range tests {
-		tt := tt
-		t.Run(tt.name, func(t *testing.T) {
-			db := testDB(t)
-			p := Provider{
-				db:        db,
-				provider:  tt.provider,
-				clockFunc: func() time.Time { return tt.clock },
-			}
-			if tt.setupDB != nil {
-				tt.setupDB(t, db)
-			}
-
-			actual, err := p.Get(context.Background(), "1")
-			tt.assertRes(t, db, actual, err)
-		})
-	}
-}
@@ -1,28 +0,0 @@
-CREATE TABLE IF NOT EXISTS locations
-(
-    id      text PRIMARY KEY,
-    country text,
-    city    text,
-    region  text
-);
-
-CREATE TABLE IF NOT EXISTS providers
-(
-    id   integer PRIMARY KEY AUTOINCREMENT,
-    name TEXT NOT NULL UNIQUE
-);
-
-CREATE TABLE IF NOT EXISTS prayer_times
-(
-    provider_id integer  NOT NULL REFERENCES providers (id),
-    location_id text     NOT NULL REFERENCES locations (id),
-    date        datetime NOT NULL,
-    fajr        text     NOT NULL,
-    sunrise     text     NOT NULL,
-    dhuhr       text     NOT NULL,
-    asr         text     NOT NULL,
-    maghrib     text     NOT NULL,
-    isha        text     NOT NULL
-);
-
-CREATE UNIQUE INDEX IF NOT EXISTS prayer_times__provider__location ON prayer_times (provider_id, location_id, date);
@@ -1,72 +0,0 @@
-package diyanet
-
-import (
-	"context"
-	"fmt"
-	"regexp"
-	"time"
-
-	"github.com/PuerkitoBio/goquery"
-
-	"prayertimes/pkg/prayer"
-)
-
-type Fetcher interface {
-	FetchParsed(ctx context.Context, url string) (*goquery.Document, error)
-}
-
-type Provider struct {
-	FetcherFunc func(ctx context.Context, url string) (*goquery.Document, error)
-}
-
-func New(fetcherFunc func(ctx context.Context, url string) (*goquery.Document, error)) *Provider {
-	return &Provider{FetcherFunc: fetcherFunc}
-}
-
-var reNumeric = regexp.MustCompile(`\d+`)
-
-func validateLocation(location string) error {
-	if !reNumeric.MatchString(location) {
-		return fmt.Errorf("invalid location id")
-	}
-	return nil
-}
-
-func (d Provider) Get(ctx context.Context, location string) ([]prayer.Times, error) {
-	if err := validateLocation(location); err != nil {
-		return nil, fmt.Errorf("%w: %v", prayer.ErrInvalidLocation, err)
-	}
-
-	u := fmt.Sprintf("https://namazvakitleri.diyanet.gov.tr/en-US/%s", location)
-	doc, err := d.FetcherFunc(ctx, u)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch location %q: %w", location, err)
-	}
-
-	var times []prayer.Times
-
-	doc.Find("#tab-1 .vakit-table tbody tr").Each(func(_ int, el *goquery.Selection) {
-		date := el.Find("td:first-of-type").Text()
-		parsedDate, err := time.Parse("02.01.2006", date)
-		if err != nil {
-			return
-		}
-
-		row := prayer.Times{
-			Date:    parsedDate.Format(time.DateOnly),
-			Fajr:    el.Find("td:nth-of-type(3)").Text(),
-			Sunrise: el.Find("td:nth-of-type(4)").Text(),
-			Dhuhr:   el.Find("td:nth-of-type(5)").Text(),
-			Asr:     el.Find("td:nth-of-type(6)").Text(),
-			Maghrib: el.Find("td:nth-of-type(7)").Text(),
-			Isha:    el.Find("td:nth-of-type(8)").Text(),
-		}
-		times = append(times, row)
-	})
-
-	return times, err
-}
-
-func (d Provider) Name() string {
-	return "diyanetweb"
-}
@@ -1,125 +0,0 @@
-package diyanet
-
-import (
-	"context"
-	"strings"
-	"testing"
-
-	"github.com/PuerkitoBio/goquery"
-	"github.com/stretchr/testify/assert"
-
-	"prayertimes/internal/net"
-	"prayertimes/pkg/prayer"
-)
-
-type mockFetcher string
-
-func (f mockFetcher) Fetch(_ context.Context, _ string) (*goquery.Document, error) {
-	return goquery.NewDocumentFromReader(strings.NewReader(string(f)))
-}
-
-const mockHtml = `
-<div id='tab-1'>
-    <div class='table-responsive'>
-        <table class='table vakit-table'>
-            <caption>Monthly Prayer Times for Some Location</caption>
-            <thead>
-            <tr>
-                <th>Gregorian Calendar Date</th>
-                <th>Hijri Date</th>
-                <th>Fajr</th>
-                <th>Sun</th>
-                <th>Dhuhr</th>
-                <th>Asr</th>
-                <th>Maghrib</th>
-                <th>Isha</th>
-            </tr>
-            </thead>
-            <tbody>
-            <tr>
-                <td>04.03.2023</td>
-                <td>...</td>
-                <td>05:48</td>
-                <td>07:11</td>
-                <td>13:05</td>
-                <td>16:15</td>
-                <td>18:49</td>
-                <td>20:06</td>
-            </tr>
-            <tr>
-                <td>05.03.2023</td>
-                <td>...</td>
-                <td>05:46</td>
-                <td>07:09</td>
-                <td>13:04</td>
-                <td>16:15</td>
-                <td>18:50</td>
-                <td>20:07</td>
-            </tr>
-            </tbody>
-        </table>
-    </div>
-</div>
-`
-
-func TestDiyanet_Get(t *testing.T) {
-	t.Run("validates location", func(t *testing.T) {
-		d := Provider{}
-		_, err := d.Get(context.Background(), " not numeric ")
-		assert.ErrorIs(t, err, prayer.ErrInvalidLocation)
-	})
-
-	t.Run("extracts prayer times", func(t *testing.T) {
-		d := Provider{
-			FetcherFunc: mockFetcher(mockHtml).Fetch,
-		}
-		actual, err := d.Get(context.Background(), "1234")
-		assert.NoError(t, err)
-
-		expected := []prayer.Times{
-			{
-				Date:    "2023-03-04",
-				Fajr:    "05:48",
-				Sunrise: "07:11",
-				Dhuhr:   "13:05",
-				Asr:     "16:15",
-				Maghrib: "18:49",
-				Isha:    "20:06",
-			},
-			{
-				Date:    "2023-03-05",
-				Fajr:    "05:46",
-				Sunrise: "07:09",
-				Dhuhr:   "13:04",
-				Asr:     "16:15",
-				Maghrib: "18:50",
-				Isha:    "20:07",
-			},
-		}
-		assert.Equal(t, expected, actual)
-	})
-
-	t.Run("real endpoint", func(t *testing.T) {
-		if testing.Short() {
-			t.Skip()
-		}
-
-		d := Provider{
-			FetcherFunc: net.GetParsed,
-		}
-		times, err := d.Get(context.Background(), "11104")
-		if err != nil {
-			t.Skipf("skipping live endpoint test due to upstream/network error: %v", err)
-		}
-		if len(times) == 0 {
-			t.Skip("skipping live endpoint test because upstream returned no times")
-		}
-
-		assert.Greater(t, len(times), 0)
-		assert.NotZero(t, times[0].Date)
-
-		for _, it := range times {
-			t.Logf("%+v", it)
-		}
-	})
-}
@@ -2,11 +2,13 @@ package diyanetapi

 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"

 	"github.com/imroc/req/v3"

+	"prayertimes/pkg/hijricalendar"
 	"prayertimes/pkg/prayer"
 )

@@ -20,34 +22,72 @@ func New(c *req.Client) Provider {
 	}
 }

-func (d Provider) GetByCoords(ctx context.Context, coords prayer.Coordinates) ([]prayer.Times, error) {
+func (d Provider) GetByCoords(ctx context.Context, coords prayer.Coordinates) (prayer.TimesResult, error) {
+	locationID, err := d.getLocationIDByCoords(ctx, coords)
+	if err != nil {
+		return prayer.TimesResult{}, fmt.Errorf("failed to resolve location by coordinates: %w", err)
+	}
+
+	result, err := d.Get(ctx, locationID)
+	if err != nil {
+		return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times by coordinates: %w", err)
+	}
+	result.Location.Latitude = coords.Latitude
+	result.Location.Longitude = coords.Longitude
+
+	return result, nil
+}
+
+func (d Provider) getLocationIDByCoords(ctx context.Context, coords prayer.Coordinates) (string, error) {
 	res, err := d.http.NewRequest().
 		SetContext(ctx).
 		SetQueryParams(map[string]string{
 			"latitude":  fmt.Sprintf("%f", coords.Latitude),
 			"longitude": fmt.Sprintf("%f", coords.Longitude),
 		}).
-		Get("https://namazvakti.diyanet.gov.tr/api/NamazVakti/Aylik")
+		Get("https://namazvakti.diyanet.gov.tr/api/ilce/GetByCoordinat")
 	if err != nil {
-		return nil, fmt.Errorf("failed to get prayer times by coords: %w", err)
+		return "", fmt.Errorf("failed to get location by coords: %w", err)
 	}

-	return d.parseResponse(res)
+	var response struct {
+		Success      bool `json:"success"`
+		ResultObject []struct {
+			ID int `json:"cityID"`
+		} `json:"resultObject"`
+	}
+	if err := res.Unmarshal(&response); err != nil {
+		return "", fmt.Errorf("failed to unmarshal city response: %w", err)
+	}
+	if !response.Success {
+		return "", fmt.Errorf("failed to get location by coordinates from upstream: %w", errors.New(res.String()))
+	}
+	if len(response.ResultObject) == 0 {
+		return "", fmt.Errorf("failed to resolve location by coordinates: %w", errors.New("empty location result"))
+	}
+
+	return fmt.Sprintf("%d", response.ResultObject[0].ID), nil
 }

-func (d Provider) Get(ctx context.Context, locationID string) ([]prayer.Times, error) {
+func (d Provider) Get(ctx context.Context, locationID string) (prayer.TimesResult, error) {
 	res, err := d.http.NewRequest().
 		SetContext(ctx).
 		SetQueryParam("ilceId", locationID).
-		Get("https://namazvakti.diyanet.gov.tr/api/NamazVakti/Aylik")
+		Get("https://namazvakti.diyanet.gov.tr/api/NamazVakti/Gunluk")
 	if err != nil {
-		return nil, fmt.Errorf("failed to get prayer times by location id: %w", err)
+		return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times by location id: %w", err)
 	}

-	return d.parseResponse(res)
+	result, err := d.parseResponse(res)
+	if err != nil {
+		return prayer.TimesResult{}, fmt.Errorf("failed to parse prayer times response: %w", err)
+	}
+	result.Location.ID = parseIntOrZero(locationID)
+
+	return result, nil
 }

-func (d Provider) parseResponse(res *req.Response) ([]prayer.Times, error) {
+func (d Provider) parseResponse(res *req.Response) (prayer.TimesResult, error) {
 	var response struct {
 		Success      bool `json:"success"`
 		ResultObject struct {
@@ -56,48 +96,61 @@ func (d Provider) parseResponse(res *req.Response) ([]prayer.Times, error) {
 				Timezone string `json:"timezone"`
 			} `json:"konum"`
 			PrayerTimes []struct {
-				Date    time.Time `json:"miladi_tarih_uzun_Iso8601"`
-				Fajr    time.Time `json:"imsak"`
-				Sunrise time.Time `json:"gunes"`
-				Dhuhr   time.Time `json:"ogle"`
-				Asr     time.Time `json:"ikindi"`
-				Maghrib time.Time `json:"aksam"`
-				Isha    time.Time `json:"yatsi"`
+				Date        time.Time `json:"miladi_tarih_uzun_Iso8601"`
+				DateIslamic string    `json:"hicri_tarih_uzun"`
+				Fajr        time.Time `json:"imsak"`
+				Sunrise     time.Time `json:"gunes"`
+				Dhuhr       time.Time `json:"ogle"`
+				Asr         time.Time `json:"ikindi"`
+				Sunset      time.Time `json:"gunes_batis"`
+				Maghrib     time.Time `json:"aksam"`
+				Isha        time.Time `json:"yatsi"`
 			} `json:"namazVakti"`
 		} `json:"resultObject"`
 	}
 	if err := res.Unmarshal(&response); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal as json: %w", err)
+		return prayer.TimesResult{}, fmt.Errorf("failed to unmarshal as json: %w", err)
 	}
 	if !response.Success {
-		return nil, fmt.Errorf("received error: %s", res.String())
+		return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times from upstream: %w", errors.New(res.String()))
 	}

 	if len(response.ResultObject.PrayerTimes) == 0 {
-		return nil, nil
+		return prayer.TimesResult{}, nil
 	}

 	var times []prayer.Times
 	today := time.Now().UTC().Truncate(time.Hour * 24)
 	for _, pt := range response.ResultObject.PrayerTimes {
-		then := prayer.Date(pt.Date).Time()
+		then := pt.Date.UTC().Truncate(time.Hour * 24)
 		if then.Before(today) {
 			continue
 		}

 		times = append(times, prayer.Times{
-			Date:    pt.Date.Format(time.DateOnly),
-			Fajr:    pt.Fajr.Format(time.TimeOnly),
-			Sunrise: pt.Sunrise.Format(time.TimeOnly),
-			Dhuhr:   pt.Dhuhr.Format(time.TimeOnly),
-			Asr:     pt.Asr.Format(time.TimeOnly),
-			Maghrib: pt.Maghrib.Format(time.TimeOnly),
-			Isha:    pt.Isha.Format(time.TimeOnly),
+			Date:      pt.Date.UTC(),
+			DateHijri: hijricalendar.ToISODate(pt.Date.UTC()),
+			Fajr:      pt.Fajr.UTC(),
+			Sunrise:   pt.Sunrise.UTC(),
+			Dhuhr:     pt.Dhuhr.UTC(),
+			Asr:       pt.Asr.UTC(),
+			Sunset:    pt.Sunset.UTC(),
+			Maghrib:   pt.Maghrib.UTC(),
+			Isha:      pt.Isha.UTC(),
 		})
 	}
-	return times, nil
+
+	return prayer.TimesResult{
+		Location: prayer.Location{
+			ID:       response.ResultObject.Location.ID,
+			Timezone: response.ResultObject.Location.Timezone,
+		},
+		Times: times,
+	}, nil
 }

-func (d Provider) Name() string {
-	return "diyanetapi"
+func parseIntOrZero(value string) int {
+	var out int
+	_, _ = fmt.Sscanf(value, "%d", &out)
+	return out
 }
@@ -15,23 +15,37 @@ func TestDiyanetAPI_GetByCoords(t *testing.T) {
 	t.Run("by coords", func(t *testing.T) {
 		t.Parallel()

-		times, err := p.GetByCoords(context.Background(), prayer.Coordinates{
+		result, err := p.GetByCoords(context.Background(), prayer.Coordinates{
 			Latitude:  52.5100846,
 			Longitude: 13.4518284,
 		})
+		if err != nil {
+			t.Skipf("skipping live endpoint test due to upstream/network error: %v", err)
+		}
+		if len(result.Times) == 0 {
+			t.Skip("skipping live endpoint test because upstream returned no times")
+		}
+
 		assert.NoError(t, err)
-		assert.NotEmpty(t, times)
-		t.Logf("%#+v", times[0])
+		assert.NotEmpty(t, result.Times)
+		t.Logf("location=%+v first=%+v", result.Location, result.Times[0])
 	})

 	t.Run("by id", func(t *testing.T) {
 		t.Parallel()

-		times, err := p.Get(context.Background(), "11104")
+		result, err := p.Get(context.Background(), "11104")
+		if err != nil {
+			t.Skipf("skipping live endpoint test due to upstream/network error: %v", err)
+		}
+		if len(result.Times) == 0 {
+			t.Skip("skipping live endpoint test because upstream returned no times")
+		}
+
 		assert.NoError(t, err)
-		assert.NotEmpty(t, times)
-		for _, time := range times {
-			t.Log(time)
+		assert.NotEmpty(t, result.Times)
+		for _, item := range result.Times {
+			t.Log(item)
 		}
 	})
 }
@@ -0,0 +1,330 @@
+package diyanetcalc
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"math"
+	"time"
+
+	"prayertimes/pkg/hijricalendar"
+	"prayertimes/pkg/prayer"
+)
+
+const (
+	daysToGenerate = 30
+	degPerHour     = 15.0
+)
+
+var errNotSupported = errors.New("not supported in calculation provider")
+
+// Diyanet prayer times calculator.
+//
+// Implements the Turkish Presidency of Religious Affairs (Diyanet) methodology,
+// standardized in the 1983 reform. Prayer times are indexed to the Sun's apparent
+// altitude angle at the observer's location, solved via spherical trigonometry.
+
+// ---------------------------------------------------------------------------
+// Diyanet angular criteria (post-1983 reform)
+// ---------------------------------------------------------------------------
+
+// Imsak (Fajr): Sun is 18deg below the horizon = start of astronomical twilight.
+// Pre-1983 used -19deg plus a temkin buffer; now -18deg with zero temkin.
+const imsakAngle = -18.0
+
+// Isha (Yatsi): Sun is 17deg below the horizon = shafaq al-ahmar (red twilight)
+// has fully disappeared from the western sky.
+const ishaAngle = -17.0
+
+// Sunrise / Sunset (Tulu / Gurup): geometric horizon alone is insufficient.
+// Two physical corrections are combined into a single -0.833deg value (50 arcmin):
+//   - Atmospheric refraction: ~0.567deg — air bends sunlight over the horizon
+//   - Solar semi-diameter:    ~0.267deg — Sun is "up" when its upper limb clears
+const sunAngle = -0.833
+
+// ---------------------------------------------------------------------------
+// Temkin — precautionary time buffers (minutes, post-1983 standardized values)
+//
+// Temkin ensures a single published time remains valid across the full
+// geographical extent of a city (highest peak to lowest valley, east to west).
+// Pre-1983 values were often 10–20 min; the reform moderated them.
+//
+//	Imsak:   0 min — no buffer; avoids starting Fajr too early / fast too late
+//	Sunrise: -7 min — subtracted, ensuring the Sun has fully cleared the horizon
+//	Dhuhr:  +5 min — added, ensuring the Sun has clearly begun its descent
+//	Asr:    +4 min — accounts for local elevation and horizon obstacles
+//	Maghrib:+7 min — ensures the Sun has completely set before breaking fast
+//	Isha:    0 min — no buffer needed at this twilight stage
+//
+// ---------------------------------------------------------------------------
+type temkinMinutes struct {
+	Imsak   float64
+	Sunrise float64
+	Dhuhr   float64
+	Asr     float64
+	Maghrib float64
+	Isha    float64
+}
+
+var temkin = temkinMinutes{
+	Imsak:   0,
+	Sunrise: -7,
+	Dhuhr:   5,
+	Asr:     4,
+	Maghrib: 7,
+	Isha:    0,
+}
+
+type Provider struct{}
+
+func New() Provider {
+	return Provider{}
+}
+
+func (Provider) SearchLocations(_ context.Context, _ string) ([]prayer.Location, error) {
+	return nil, fmt.Errorf("failed to search locations: %w", errNotSupported)
+}
+
+func (Provider) Get(_ context.Context, _ string) (prayer.TimesResult, error) {
+	return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times by location id: %w", errNotSupported)
+}
+
+func (Provider) GetByCoords(_ context.Context, coords prayer.Coordinates) (prayer.TimesResult, error) {
+	offset := estimateUTCOffsetHours(coords.Longitude)
+	todayUTC := time.Now().UTC().Truncate(24 * time.Hour)
+
+	results := make([]prayer.Times, 0, daysToGenerate)
+	for i := 0; i < daysToGenerate; i++ {
+		day := todayUTC.AddDate(0, 0, i)
+		calculated := prayerTimes(coords.Latitude, coords.Longitude, day)
+
+		results = append(results, prayer.Times{
+			Date:      day,
+			DateHijri: hijricalendar.ToISODate(day),
+			Fajr:      derefOrZero(calculated.Imsak),
+			Sunrise:   derefOrZero(calculated.Sunrise),
+			Dhuhr:     derefOrZero(calculated.Dhuhr),
+			Asr:       derefOrZero(calculated.Asr),
+			Sunset:    derefOrZero(calculated.Sunset),
+			Maghrib:   derefOrZero(calculated.Maghrib),
+			Isha:      derefOrZero(calculated.Isha),
+		})
+	}
+
+	return prayer.TimesResult{
+		Location: prayer.Location{
+			Latitude:  coords.Latitude,
+			Longitude: coords.Longitude,
+			Timezone:  formatUTCOffsetTimezone(offset),
+		},
+		Times: results,
+	}, nil
+}
+
+// Convert a calendar date to a Julian Day Number.
+//
+// JDN is a continuous day count from Jan 1, 4713 BC used in astronomy to
+// avoid calendar-system ambiguities. The -1524.5 offset shifts the epoch to
+// noon UT, Jan 1, 4713 BC (the standard astronomical Julian Date epoch).
+// The Gregorian calendar correction term b = 2 - a + a//4 accounts for
+// the century-year leap-day rules introduced in 1582.
+func julianDay(d time.Time) float64 {
+	y, m, day := d.Date()
+	if m <= 2 {
+		// January/February treated as months 13/14 of the prior year
+		y--
+		m += 12
+	}
+	a := y / 100
+	b := 2 - a + a/4 // Gregorian correction
+
+	return math.Floor(365.25*float64(y+4716)) + math.Floor(30.6001*float64(m+1)) + float64(day+b) - 1524.5
+}
+
+// Compute solar declination and equation of time for a given Julian Day.
+//
+// Returns:
+//
+//	delta — solar declination in degrees: the Sun's angular distance
+//	        north (+) or south (-) of the celestial equator. Controls
+//	        seasonal day length and the Sun's maximum altitude.
+//	eot   — equation of time in minutes: difference between apparent solar
+//	        time (sundial) and mean solar time (clock). Caused by Earth's
+//	        elliptical orbit and axial tilt; ranges roughly ±16 min.
+//
+// Algorithm uses low-precision USNO solar coordinates (~0.01deg accuracy):
+//
+//	d  — days since J2000.0 epoch (Jan 1.5, 2000 = JD 2451545.0)
+//	g  — mean anomaly: Sun's angular position in its elliptical orbit
+//	q  — mean longitude of the Sun
+//	L  — ecliptic longitude: corrected for orbital eccentricity via the
+//	     equation of centre (1.915deg*sin g + 0.020deg*sin 2g)
+//	e  — obliquity of the ecliptic: Earth's axial tilt (~23.44deg, slowly
+//	     decreasing at 0.00000036deg/day)
+func sunParams(jd float64) (delta float64, eot float64) {
+	d := jd - 2451545.0 // days since J2000.0
+
+	g := toRadians(357.529 + 0.98560028*d) // mean anomaly
+	q := toRadians(280.459 + 0.98564736*d) // mean longitude
+
+	// Ecliptic longitude: equation of centre adds up to ~1.9deg correction for
+	// the difference between uniform circular and actual elliptical motion.
+	L := q + toRadians(1.915*math.Sin(g)+0.020*math.Sin(2*g))
+	e := toRadians(23.439 - 0.00000036*d) // obliquity of ecliptic
+
+	// Declination: project ecliptic longitude onto the celestial equator.
+	delta = toDegrees(math.Asin(math.Sin(e) * math.Sin(L)))
+
+	// Right ascension in hours (atan2 handles all four quadrants correctly).
+	ra := toDegrees(math.Atan2(math.Cos(e)*math.Sin(L), math.Cos(L))) / degPerHour
+
+	// EoT = mean sun hour angle minus apparent sun RA, normalized to ±30 min.
+	// round() removes the large integer offset (q accumulates many full rotations)
+	// before converting to minutes; without it the raw difference is ~600 hours.
+	diff := toDegrees(q)/degPerHour - ra
+	eot = (diff - math.Round(diff)) * 60
+
+	return delta, eot
+}
+
+// Solve for the hour angle H (hours) at which the Sun reaches a given altitude.
+//
+// Derived from the spherical law of cosines for the astronomical triangle:
+//
+//	sin(a) = sin(phi)*sin(delta) + cos(phi)*cos(delta)*cos(H)
+//
+// Rearranged:
+//
+//	cos(H) = (sin(a) − sin(phi)*sin(delta)) / (cos(phi)*cos(delta))
+//
+// H is converted from degrees to hours by dividing by 15 (360deg/24h = 15deg/h).
+// Returns false when |cos H| > 1, i.e. the Sun never reaches that altitude
+// (midnight sun or polar night) — Diyanet handles these with the Takdir method.
+func hourAngle(altitudeDeg, lat, delta float64) (hours float64, ok bool) {
+	cosH := (math.Sin(toRadians(altitudeDeg)) - math.Sin(toRadians(lat))*math.Sin(toRadians(delta))) /
+		(math.Cos(toRadians(lat)) * math.Cos(toRadians(delta)))
+
+	if math.Abs(cosH) > 1 {
+		return 0, false
+	}
+
+	return toDegrees(math.Acos(cosH)) / degPerHour, true
+}
+
+// Compute the solar altitude at which Asr begins (Asr-i Avval / First Asr).
+//
+// Diyanet follows the majority-school definition: Asr starts when an object's
+// shadow length equals the object's height plus its shortest noon shadow (fey-i zeval).
+// The shadow factor is 1 (Asr-i Avval; Hanafi uses 2 for Asr-i Sani).
+//
+// The required altitude satisfies:  cot(a) = 1 + tan(|phi − delta|)
+// which is:  a = atan(1 / (1 + tan(|phi − delta|)))
+// where |phi − delta| is the Sun's angular distance from the zenith at solar noon.
+func asrAltitude(lat, delta float64) float64 {
+	return toDegrees(math.Atan(1.0 / (1.0 + math.Tan(toRadians(math.Abs(lat-delta))))))
+}
+
+// Convert a decimal hour value (e.g. 10.5 = 10:30) to a UTC-aware datetime.
+func decimalHoursToUTC(hours float64, d time.Time) time.Time {
+	dayUTC := time.Date(d.Year(), d.Month(), d.Day(), 0, 0, 0, 0, time.UTC)
+	return dayUTC.Add(time.Duration(hours * float64(time.Hour)))
+}
+
+type computedTimes struct {
+	Imsak   *time.Time
+	Sunrise *time.Time
+	Dhuhr   *time.Time
+	Asr     *time.Time
+	Sunset  *time.Time
+	Maghrib *time.Time
+	Isha    *time.Time
+}
+
+// Compute Diyanet prayer times, returning UTC-aware datetimes.
+//
+// Solar noon (Dhuhr) is the central reference. All other times are offsets:
+//
+//	Morning times (Imsak, Sunrise):               noon − H + temkin
+//	Afternoon/evening times (Asr, Maghrib, Isha): noon + H + temkin
+//
+// Internally computes solar noon at UTC (tz=0), so results are in UTC.
+//
+// Solar noon formula:  T_noon = 12 + TZ − lambda/15 − EoT/60
+//
+//	lambda/15  converts longitude to hours (15deg/h)
+//	EoT        corrects the gap between mean solar time and apparent solar time
+func prayerTimes(lat, lon float64, d time.Time) computedTimes {
+	jd := julianDay(d)
+	delta, eot := sunParams(jd)
+
+	// UTC solar noon: tz=0, so T_noon = 12 − lambda/15 − EoT/60
+	noonUTC := 12 - lon/degPerHour - eot/60.0
+
+	compute := func(base, angle float64, sign int, temkinMinutes float64) *time.Time {
+		h, ok := hourAngle(angle, lat, delta)
+		if !ok {
+			return nil
+		}
+		t := decimalHoursToUTC(base+float64(sign)*h+temkinMinutes/60.0, d)
+		return &t
+	}
+
+	hAsr, hasAsr := hourAngle(asrAltitude(lat, delta), lat, delta)
+	var asr *time.Time
+	if hasAsr {
+		t := decimalHoursToUTC(noonUTC+hAsr+temkin.Asr/60.0, d)
+		asr = &t
+	}
+
+	// Sunset for output is the geometric sunset without temkin offset.
+	geometricSunset := func(base, angle float64) *time.Time {
+		h, ok := hourAngle(angle, lat, delta)
+		if !ok {
+			return nil
+		}
+		t := decimalHoursToUTC(base+h, d)
+		return &t
+	}
+
+	tDhuhr := decimalHoursToUTC(noonUTC+temkin.Dhuhr/60.0, d)
+
+	return computedTimes{
+		Imsak:   compute(noonUTC, imsakAngle, -1, temkin.Imsak),
+		Sunrise: compute(noonUTC, sunAngle, -1, temkin.Sunrise),
+		Dhuhr:   &tDhuhr,
+		Asr:     asr,
+		Sunset:  geometricSunset(noonUTC, sunAngle),
+		Maghrib: compute(noonUTC, sunAngle, +1, temkin.Maghrib),
+		Isha:    compute(noonUTC, ishaAngle, +1, temkin.Isha),
+	}
+}
+
+func derefOrZero(dt *time.Time) time.Time {
+	if dt == nil {
+		return time.Time{}
+	}
+	return dt.UTC()
+}
+
+func formatUTCOffsetTimezone(offset float64) string {
+	return fmt.Sprintf("UTC%+d", int(offset))
+}
+
+func estimateUTCOffsetHours(longitude float64) float64 {
+	offset := math.Round(longitude / degPerHour)
+	if offset < -12 {
+		return -12
+	}
+	if offset > 14 {
+		return 14
+	}
+	return offset
+}
+
+func toRadians(deg float64) float64 {
+	return deg * math.Pi / 180.0
+}
+
+func toDegrees(rad float64) float64 {
+	return rad * 180.0 / math.Pi
+}
@@ -0,0 +1,71 @@
+package diyanetprovider
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"prayertimes/pkg/prayer"
+)
+
+type APIProvider interface {
+	Get(ctx context.Context, locationID string) (prayer.TimesResult, error)
+	GetByCoords(ctx context.Context, coords prayer.Coordinates) (prayer.TimesResult, error)
+}
+
+type FallbackProvider interface {
+	GetByCoords(ctx context.Context, coords prayer.Coordinates) (prayer.TimesResult, error)
+}
+
+type Provider struct {
+	api      APIProvider
+	fallback FallbackProvider
+	timeout  time.Duration
+}
+
+func New(api APIProvider, fallback FallbackProvider) Provider {
+	return Provider{
+		api:      api,
+		fallback: fallback,
+		timeout:  1 * time.Second,
+	}
+}
+
+var ErrEmptyTimes = errors.New("diyanet did not return any prayer times")
+
+func (p Provider) Get(ctx context.Context, locationID string) (prayer.TimesResult, error) {
+	ctxWithTimeout, cancel := context.WithTimeout(ctx, p.timeout)
+	defer cancel()
+
+	result, err := p.api.Get(ctxWithTimeout, locationID)
+	if err != nil {
+		return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times from api provider: %w", err)
+	}
+	if len(result.Times) == 0 {
+		return prayer.TimesResult{}, ErrEmptyTimes
+	}
+
+	return result, nil
+}
+
+func (p Provider) GetByCoords(ctx context.Context, coords prayer.Coordinates) (prayer.TimesResult, error) {
+	ctxWithTimeout, cancel := context.WithTimeout(ctx, p.timeout)
+	defer cancel()
+
+	result, err := p.api.GetByCoords(ctxWithTimeout, coords)
+	if err == nil && len(result.Times) > 0 {
+		return result, nil
+	}
+
+	result, err = p.fallback.GetByCoords(ctx, coords)
+	if err != nil {
+		return prayer.TimesResult{}, fmt.Errorf("failed to get prayer times from fallback provider: %w", err)
+	}
+
+	if len(result.Times) == 0 {
+		return prayer.TimesResult{}, fmt.Errorf("fallback provider did not return any prayer times")
+	}
+
+	return result, nil
+}
@@ -0,0 +1,61 @@
+package hijricalendar
+
+import (
+	"fmt"
+	"math"
+	"time"
+)
+
+// JulianToIslamic converts a Julian calendar date to the Islamic (Hijri) calendar.
+// Algorithm from Jean Meeus, "Astronomical Algorithms", 2nd ed.
+func JulianToIslamic(year, month, day int) (iYear, iMonth, iDay int) {
+	jdn := julianToJDN(year, month, day)
+	return jdnToIslamic(jdn)
+}
+
+// GregorianToIslamic converts a Gregorian calendar date to the Islamic (Hijri)
+// calendar.
+func GregorianToIslamic(year, month, day int) (iYear, iMonth, iDay int) {
+	jdn := gregorianToJDN(year, month, day)
+	return jdnToIslamic(jdn)
+}
+
+// julianToJDN returns the Julian Day Number for a date on the Julian calendar.
+func julianToJDN(year, month, day int) int {
+	y, m := year, month
+	if m <= 2 {
+		y--
+		m += 12
+	}
+	return int(math.Floor(365.25*float64(y+4716))) +
+		int(math.Floor(30.6001*float64(m+1))) +
+		day - 1524
+}
+
+func gregorianToJDN(year, month, day int) int {
+	a := (14 - month) / 12
+	y := year + 4800 - a
+	m := month + 12*a - 3
+
+	return day + (153*m+2)/5 + 365*y + y/4 - y/100 + y/400 - 32045
+}
+
+// jdnToIslamic converts a Julian Day Number to an Islamic (Hijri) calendar date.
+// Source: F. de Moya, as cited in Meeus Ch. 9.
+func jdnToIslamic(jd int) (year, month, day int) {
+	l := jd - 1948440 + 10632
+	n := (l - 1) / 10631
+	l = l - 10631*n + 354
+	j := (10985-l)/5316*(50*l/17719) + (l/5670)*(43*l/15238)
+	l = l - (30-j)/15*(17719*j/50) - (j/16)*(15238*j/43) + 29
+	year = 30*n + j - 30
+	month = (24 * l) / 709
+	day = l - (709*month)/24
+	return
+}
+
+func ToISODate(t time.Time) string {
+	year, month, day := t.UTC().Date()
+	hYear, hMonth, hDay := GregorianToIslamic(year, int(month), day)
+	return fmt.Sprintf("%04d-%02d-%02d", hYear, hMonth, hDay)
+}
@@ -0,0 +1,45 @@
+package hijricalendar
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestToISODate(t *testing.T) {
+	tests := []struct {
+		name string
+		date time.Time
+		want string
+	}{
+		{
+			name: "ramadan 3 1447",
+			date: time.Date(2026, 2, 20, 0, 0, 0, 0, time.UTC),
+			want: "1447-09-03",
+		},
+		{
+			name: "ramadan 1 1447",
+			date: time.Date(2026, 2, 18, 0, 0, 0, 0, time.UTC),
+			want: "1447-09-01",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := ToISODate(tt.date)
+			require.NotEmpty(t, got)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}
+
+func TestGregorianToIslamicRange(t *testing.T) {
+	y, m, d := GregorianToIslamic(2026, 2, 20)
+	assert.Positive(t, y)
+	assert.GreaterOrEqual(t, m, 1)
+	assert.LessOrEqual(t, m, 12)
+	assert.GreaterOrEqual(t, d, 1)
+	assert.LessOrEqual(t, d, 30)
+}
@@ -1,85 +1,41 @@
 package prayer

 import (
-	"context"
-	"database/sql/driver"
-	"encoding/json"
 	"errors"
 	"time"
 )

 var ErrInvalidLocation = errors.New("invalid location")

-type TimesProvider interface {
-	Get(ctx context.Context, location string) ([]Times, error)
-	Name() string
-}
-
 type Coordinates struct {
 	Latitude  float64
 	Longitude float64
 }

-type LocationTimesProvider interface {
-	GetByCoords(ctx context.Context, coords Coordinates) ([]Times, error)
-	Name() string
-}
-
-type Date time.Time
-
-func (d Date) String() string {
-	return time.Time(d).Format(time.DateOnly)
-}
-
-func (d *Date) Scan(src any) error {
-	switch v := src.(type) {
-	case []byte:
-		return json.Unmarshal(v, d)
-	case string:
-		return json.Unmarshal([]byte(v), d)
-	case time.Time:
-		*d = Date(v)
-		return nil
-	}
-	return nil
-}
-
-func (d *Date) Value() (driver.Value, error) {
-	return json.Marshal(d)
-}
-
-func (d *Date) UnmarshalJSON(bytes []byte) error {
-	var t time.Time
-	if err := json.Unmarshal(bytes, &t); err != nil {
-		return err
-	}
-	_, offset := t.Zone()
-	t = t.Add(time.Duration(offset * int(time.Second)))
-	t = t.UTC()
-	*d = Date(t)
-
-	return nil
-}
-
-func (d Date) MarshalJSON() ([]byte, error) {
-	t := time.Time(d)
-	return json.Marshal(t.Format(time.DateOnly))
-}
-
-func (d Date) Time() time.Time {
-	t := time.Time(d)
-	_, offset := t.Zone()
-	t = t.Add(time.Duration(offset * int(time.Second)))
-	t = t.UTC()
-	return t
+type Location struct {
+	ID             int     `json:"id"`
+	Name           string  `json:"name"`
+	ASCIIName      string  `json:"ascii_name"`
+	AlternateNames string  `json:"alternate_names"`
+	CountryCode    string  `json:"country_code"`
+	Latitude       float64 `json:"latitude"`
+	Longitude      float64 `json:"longitude"`
+	Timezone       string  `json:"timezone,omitempty"`
 }

 type Times struct {
-	Date    string `json:"date"`
-	Fajr    string `json:"fajr"`
-	Sunrise string `json:"sunrise"`
-	Dhuhr   string `json:"dhuhr"`
-	Asr     string `json:"asr"`
-	Maghrib string `json:"maghrib"`
-	Isha    string `json:"isha"`
+	Date      time.Time `json:"date"`
+	DateHijri string    `json:"date_hijri"`
+	Fajr      time.Time `json:"fajr"`
+	Sunrise   time.Time `json:"sunrise"`
+	Dhuhr     time.Time `json:"dhuhr"`
+	Asr       time.Time `json:"asr"`
+	Sunset    time.Time `json:"sunset,omitempty"`
+	Maghrib   time.Time `json:"maghrib"`
+	Isha      time.Time `json:"isha"`
+}
+
+type TimesResult struct {
+	Location Location `json:"location"`
+	Times    []Times  `json:"prayertimes"`
 }
@@ -0,0 +1,182 @@
+#!/usr/bin/env python3
+"""Download GeoNames cities5000 from https://download.geonames.org/export/dump/ and seed a SQLite database."""
+
+from __future__ import annotations
+
+import argparse
+import io
+import sqlite3
+import sys
+import urllib.request
+import zipfile
+from pathlib import Path
+
+SOURCE_URL = "https://download.geonames.org/export/dump/cities5000.zip"
+ARCHIVE_ENTRY = "cities5000.txt"
+
+CREATE_TABLE_SQL = """
+CREATE TABLE IF NOT EXISTS cities (
+    geoname_id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL,
+    ascii_name TEXT NOT NULL,
+    alternate_names TEXT,
+    latitude REAL NOT NULL,
+    longitude REAL NOT NULL,
+    feature_class TEXT,
+    feature_code TEXT,
+    country_code TEXT,
+    cc2 TEXT,
+    admin1_code TEXT,
+    admin2_code TEXT,
+    admin3_code TEXT,
+    admin4_code TEXT,
+    population INTEGER,
+    elevation INTEGER,
+    dem INTEGER,
+    timezone TEXT,
+    modification_date TEXT
+)
+"""
+
+CREATE_INDEXES_SQL = (
+    "CREATE INDEX IF NOT EXISTS idx_cities_name ON cities(name)",
+    "CREATE INDEX IF NOT EXISTS idx_cities_ascii_name ON cities(ascii_name)",
+    "CREATE INDEX IF NOT EXISTS idx_cities_alternate_names ON cities(alternate_names)",
+    "CREATE INDEX IF NOT EXISTS idx_cities_country_code ON cities(country_code)",
+    "CREATE INDEX IF NOT EXISTS idx_cities_population ON cities(population DESC)",
+)
+
+INSERT_SQL = """
+INSERT OR REPLACE INTO cities (
+    geoname_id,
+    name,
+    ascii_name,
+    alternate_names,
+    latitude,
+    longitude,
+    feature_class,
+    feature_code,
+    country_code,
+    cc2,
+    admin1_code,
+    admin2_code,
+    admin3_code,
+    admin4_code,
+    population,
+    elevation,
+    dem,
+    timezone,
+    modification_date
+) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+"""
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Seed GeoNames cities5000 into SQLite")
+    parser.add_argument("--db", required=True, help="Target SQLite database path")
+    parser.add_argument(
+        "--batch-size", type=int, default=1000, help="Insert batch size"
+    )
+    return parser.parse_args()
+
+
+def to_int(value: str) -> int | None:
+    value = value.strip()
+    if value == "":
+        return None
+    return int(value)
+
+
+def to_float(value: str) -> float:
+    return float(value.strip())
+
+
+def row_from_columns(columns: list[str]) -> tuple:
+    return (
+        int(columns[0]),
+        columns[1],
+        columns[2],
+        columns[3],
+        to_float(columns[4]),
+        to_float(columns[5]),
+        columns[6],
+        columns[7],
+        columns[8],
+        columns[9],
+        columns[10],
+        columns[11],
+        columns[12],
+        columns[13],
+        to_int(columns[14]),
+        to_int(columns[15]),
+        to_int(columns[16]),
+        columns[17],
+        columns[18],
+    )
+
+
+def download_archive() -> bytes:
+    with urllib.request.urlopen(SOURCE_URL) as response:
+        return response.read()
+
+
+def stream_city_rows(archive_bytes: bytes):
+    with zipfile.ZipFile(io.BytesIO(archive_bytes)) as zf:
+        with zf.open(ARCHIVE_ENTRY) as raw_file:
+            for raw_line in raw_file:
+                line = raw_line.decode("utf-8").rstrip("\n")
+                if not line:
+                    continue
+
+                columns = line.split("\t")
+                if len(columns) != 19:
+                    continue
+
+                yield row_from_columns(columns)
+
+
+def seed_database(db_path: Path, batch_size: int) -> int:
+    archive = download_archive()
+
+    inserted = 0
+    batch = []
+
+    db_path.parent.mkdir(parents=True, exist_ok=True)
+
+    with sqlite3.connect(str(db_path)) as conn:
+        cursor = conn.cursor()
+        cursor.execute("PRAGMA journal_mode=WAL")
+        cursor.execute(CREATE_TABLE_SQL)
+        for sql in CREATE_INDEXES_SQL:
+            cursor.execute(sql)
+
+        for row in stream_city_rows(archive):
+            batch.append(row)
+            if len(batch) >= batch_size:
+                cursor.executemany(INSERT_SQL, batch)
+                inserted += len(batch)
+                batch.clear()
+
+        if batch:
+            cursor.executemany(INSERT_SQL, batch)
+            inserted += len(batch)
+
+        conn.commit()
+
+    return inserted
+
+
+def main() -> int:
+    args = parse_args()
+    try:
+        inserted = seed_database(Path(args.db), args.batch_size)
+    except Exception as exc:  # noqa: BLE001
+        print(f"failed to seed cities database: {exc}", file=sys.stderr)
+        return 1
+
+    print(f"seeded {inserted} city rows into {args.db}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
@@ -35,8 +35,47 @@
        </div>
    </template>

-    <input type='text'
-           x-model='locationId'>
+    <div class='location-search'>
+        <input type='search'
+               class='location-search__input'
+               placeholder='Search location...'
+               x-model='searchQuery'
+               @input='onSearchInput'
+               @focus='searchOpen = searchResults.length > 0'
+               @click.outside='searchOpen = false'>
+
+        <template x-if='searchOpen'>
+            <div class='location-search__dropdown'>
+                <template x-if='searchLoading'>
+                    <div class='location-search__state'>Searching...</div>
+                </template>
+
+                <template x-if='!searchLoading && searchError'>
+                    <div class='location-search__state'
+                         x-text='searchError'></div>
+                </template>
+
+                <template x-if='!searchLoading && !searchError && searchResults.length === 0'>
+                    <div class='location-search__state'>No results</div>
+                </template>
+
+                <template x-if='!searchLoading && !searchError && searchResults.length > 0'>
+                    <ul class='location-search__results'>
+                        <template x-for='location in searchResults'
+                                  :key='location.id'>
+                            <li>
+                                <button type='button'
+                                        class='location-search__item'
+                                        @click='selectLocation(location)'>
+                                    <span x-text='formatLocationLabel(location)'></span>
+                                </button>
+                            </li>
+                        </template>
+                    </ul>
+                </template>
+            </div>
+        </template>
+    </div>

    <template x-if='todayTimes'>
        <div class='current-salath text--center'>
@@ -45,16 +84,21 @@
                      x-text='formatDate(userNow)'></time>
            </p>
            <p>
-            <span class='salath-name'
-                  lang='tr'
-                  x-text='todayTimes.currentSalath.name("tr")'></span>
-                <span class='salath-name'
-                      lang='de'
-                      x-text='todayTimes.currentSalath.name("de")'></span>
-                <span class='salath-name text--arabic'
-                      lang='ar'
-                      x-text='todayTimes.currentSalath.name("ar")'></span>
-            </p>
+            <div class='salath-name-group salath-name-group--center'>
+                <span class='salath-name salath-name--primary'
+                      :class="{'text--arabic': salathNameDisplay(todayTimes.currentSalath.salath).primary.lang === 'ar'}"
+                      :lang='salathNameDisplay(todayTimes.currentSalath.salath).primary.lang'
+                      x-text='salathNameDisplay(todayTimes.currentSalath.salath).primary.text'></span>
+                <div class="salath-name-alternatives">
+                    <template x-for='item in salathNameDisplay(todayTimes.currentSalath.salath).secondary'
+                              :key='item.lang'>
+                    <span class='salath-name salath-name--secondary'
+                          :class="{'text--arabic': item.lang === 'ar'}"
+                          :lang='item.lang'
+                          x-text='item.text'></span>
+                    </template>
+                </div>
+            </div>
            <p>
                <time :datetime='todayTimes.nextSalath.startsAt'
                      class='text--numeric text--time'
@@ -71,12 +115,22 @@
                    <tr class='salath'
                        :class='{current: it.salath === todayTimes.currentSalath.salath}'>
                        <td class='cell-names'>
-                    <span class='salath-name'
-                          x-text='it.name("tr")'></span>
-                            <span class='salath-name'
-                                  x-text='it.name("de")'></span>
-                            <span class='salath-name text--arabic'
-                                  x-text='it.name("ar")'></span>
+                            <div class='salath-name-group'>
+                                <span class='salath-name salath-name--primary'
+                                      :class="{'text--arabic': salathNameDisplay(it.salath).primary.lang === 'ar'}"
+                                      :lang='salathNameDisplay(it.salath).primary.lang'
+                                      x-text='salathNameDisplay(it.salath).primary.text'></span>
+                                <div class="salath-name-alternatives">
+
+                                    <template x-for='item in salathNameDisplay(it.salath).secondary'
+                                              :key='item.lang'>
+                                    <span class='salath-name salath-name--secondary'
+                                          :class="{'text--arabic': item.lang === 'ar'}"
+                                          :lang='item.lang'
+                                          x-text='item.text'></span>
+                                    </template>
+                                </div>
+                            </div>
                        </td>
                        <td class='cell-times'>
                    <span class='salath-time text--time text--numeric'
@@ -1,29 +1,129 @@
 const app = () => ({
    futureTimes: [],
-
-    locationId: Alpine.$persist('11104'),
+    selectedLocation: Alpine.$persist(null),
    lastUpdated: Alpine.$persist(null),
+    searchQuery: "",
+    searchResults: [],
+    searchOpen: false,
+    searchLoading: false,
+    searchError: "",
+    searchDebounceTimer: null,
+    supportedSalathLangs: ["tr", "de", "en", "ar"],
    userMinutes: 0,
    now: new Date(),
-    debug: location.hash === '#debug',
-    geolocation: null,
+    debug: hasDebugHashFlag(),

    async init() {
-        await this.refreshIfStale();
+        const urlCoords = getURLCoords();
+        if (urlCoords) {
+            await this.selectNearestLocation(urlCoords.latitude, urlCoords.longitude, {updateURL: false});
+        } else if (this.selectedLocation) {
+            this.searchQuery = this.formatLocationLabel(this.selectedLocation);
+            await this.refreshPrayerTimes();
+        }
+
        setInterval(() => {
            this.now = new Date();
        }, 500);

-        getUserLocation()
-            .then(loc => {
-                this.geolocation = {latitude: loc.latitude, longitude: loc.longitude};
-                this.refreshIfStale();
-            })
-            .catch(() => this.geolocation = null)
+        if (!urlCoords) {
+            try {
+                const coords = await getUserLocation();
+                await this.selectNearestLocation(coords.latitude, coords.longitude, {updateURL: true});
+            } catch (_error) {
+                // Ignore geolocation errors and rely on manual search.
+            }
+        }
    },

    onHash() {
-        this.debug = location.hash === '#debug'
+        this.debug = hasDebugHashFlag();
+
+        const urlCoords = getURLCoords();
+        if (urlCoords) {
+            this.selectNearestLocation(urlCoords.latitude, urlCoords.longitude, {updateURL: false});
+        }
+    },
+
+    onSearchInput() {
+        this.searchError = "";
+        if (this.searchDebounceTimer) {
+            clearTimeout(this.searchDebounceTimer);
+        }
+
+        const query = this.searchQuery.trim();
+        if (query === "") {
+            this.searchResults = [];
+            this.searchOpen = false;
+            return;
+        }
+
+        this.searchDebounceTimer = setTimeout(() => {
+            this.searchLocations(query);
+        }, 250);
+    },
+
+    async searchLocations(query) {
+        this.searchLoading = true;
+        this.searchOpen = true;
+        try {
+            const response = await fetchJSON(`/api/v1/diyanet/location?query=${encodeURIComponent(query)}`);
+            this.searchResults = response.locations ?? [];
+        } catch (_error) {
+            this.searchResults = [];
+            this.searchError = "Failed to search locations.";
+        } finally {
+            this.searchLoading = false;
+        }
+    },
+
+    async selectNearestLocation(latitude, longitude, {updateURL = false} = {}) {
+        const response = await fetchJSON(`/api/v1/diyanet/location?latitude=${encodeURIComponent(latitude)}&longitude=${encodeURIComponent(longitude)}`);
+        const first = (response.locations ?? [])[0];
+        if (!first) {
+            return;
+        }
+        await this.selectLocation(first, {updateURL});
+    },
+
+    async selectLocation(location, {updateURL = true} = {}) {
+        this.selectedLocation = location;
+        this.searchQuery = this.formatLocationLabel(location);
+        this.searchOpen = false;
+        this.searchResults = [];
+        if (updateURL) {
+            setURLCoords(location.latitude, location.longitude);
+        }
+        await this.refreshPrayerTimes();
+    },
+
+    formatLocationLabel(location) {
+        if (!location) {
+            return "";
+        }
+        const country = (location.country_code || "").trim();
+        const name = (location.name || "").trim();
+        const asciiName = (location.ascii_name || "").trim();
+        if (name && asciiName && name !== asciiName) {
+            return `${name} (${asciiName})${country ? ` - ${country}` : ""}`;
+        }
+        if (name) {
+            return `${name}${country ? ` - ${country}` : ""}`;
+        }
+        return `${asciiName}${country ? ` - ${country}` : ""}`;
+    },
+
+    async refreshPrayerTimes() {
+        if (!this.selectedLocation) {
+            this.futureTimes = [];
+            return;
+        }
+
+        const latitude = this.selectedLocation.latitude;
+        const longitude = this.selectedLocation.longitude;
+        const response = await fetchJSON(`/api/v1/diyanet/prayertimes?latitude=${encodeURIComponent(latitude)}&longitude=${encodeURIComponent(longitude)}`);
+        this.futureTimes = response.prayertimes ?? [];
+        this.lastUpdated = new Date().toISOString();
    },

    get userNow() {
@@ -40,20 +140,6 @@ const app = () => ({
        return formatTime(this.userNow);
    },

-    async refreshIfStale() {
-        const updatedAt = new Date(this.lastUpdated);
-        const now = new Date();
-
-        const elapsedSeconds = (now - updatedAt) / 1000;
-
-        if (this.geolocation !== null) {
-            this.futureTimes = await fetchJSON(`/api/v1/diyanet/prayertimes?latitude=${this.geolocation.latitude}&longitude=${this.geolocation.longitude}`);
-        } else {
-            this.futureTimes = await fetchJSON(`/api/v1/diyanet/prayertimes?location_id=${this.locationId}`);
-        }
-        this.lastUpdated = now.toISOString();
-    },
-
    get todayTimes() {
        if (this.futureTimes.length === 0) {
            return null;
@@ -61,67 +147,114 @@ const app = () => ({
        return new PrayerTimes(this.futureTimes[0], () => this.userNow);
    },

-    translate(key, lang) {
-        return translations[key][lang] ?? key
+    get preferredSalathLangs() {
+        const browserLanguages = (navigator.languages && navigator.languages.length > 0)
+            ? navigator.languages
+            : [navigator.language];
+
+        const preferred = browserLanguages
+            .filter(Boolean)
+            .map((tag) => normalizeLanguageTag(tag))
+            .filter((lang) => this.supportedSalathLangs.includes(lang));
+
+        return Array.from(new Set([...preferred, ...this.supportedSalathLangs]));
+    },
+
+    salathNameDisplay(salath) {
+        const names = this.preferredSalathLangs.map((lang) => ({
+            lang,
+            text: PrayerTimes.translations[salath]?.[lang] ?? salath
+        }));
+
+        return {
+            primary: names[0],
+            secondary: names.slice(1)
+        };
    }
 });

 class PrayerTimes {
-    static salaths = ['fajr', 'sunrise', 'dhuhr', 'asr', 'maghrib', 'isha'];
+    static salaths = ["fajr", "sunrise", "dhuhr", "asr", "maghrib", "isha"];
    static translations = {
-        fajr: {tr: 'İmsak', de: 'Frühgebet', ar: 'صلاة الفجر'},
-        sunrise: {tr: 'Güneş', de: 'Sonnenaufgang', ar: 'الشروق'},
-        dhuhr: {tr: 'Öğle', de: 'Mittagsgebet', ar: 'صلاة الظهر'},
-        asr: {tr: 'İkindi', de: 'Nachmittagsgebet', ar: 'صلاة العصر'},
-        maghrib: {tr: 'Akşam', de: 'Abendgebet', ar: 'صلاة المغرب'},
-        isha: {tr: 'Yatsı', de: 'Nachtgebet', ar: 'صلاة العشاء'},
-    }
+        fajr: {
+            tr: "İmsak",
+            en: "Fajr",
+            de: "Fruehgebet",
+            ar: "صلاة الفجر"
+        },
+        sunrise: {
+            tr: "Güneş",
+            en: "Sunrise",
+            de: "Sonnenaufgang",
+            ar: "الشروق"
+        },
+        dhuhr: {
+            tr: "Öğle",
+            en: "Dhuhr",
+            de: "Mittagsgebet",
+            ar: "صلاة الظهر"
+        },
+        asr: {
+            tr: "İkindi",
+            en: "Asr",
+            de: "Nachmittagsgebet",
+            ar: "صلاة العصر"
+        },
+        maghrib: {
+            tr: "Akşam",
+            en: "Maghrib",
+            de: "Abendgebet",
+            ar: "صلاة المغرب"
+        },
+        isha: {
+            tr: "Yatsı",
+            en: "Isha",
+            de: "Nachtgebet",
+            ar: "صلاة العشاء"
+        }
+    };

    constructor({date, ...rest}, clock = () => new Date()) {
        this.date = date;
-        this.clock = clock
-        this.salathTimes = rest
+        this.clock = clock;
+        this.salathTimes = rest;
    }

    get times() {
-        const now = this.clock()
-        return PrayerTimes.salaths.map(k => {
-            // "2023-03-05T00:00:00Z"
-            const startsAt = new Date(this.date.replace('T00:00', `T${this.salathTimes[k]}`).replace(/Z$/, ''));
+        const now = this.clock();
+        return PrayerTimes.salaths.map((k) => {
+            const startsAt = new Date(this.date.replace("T00:00", `T${this.salathTimes[k]}`).replace(/Z$/, ""));

            return {
                salath: k,
-                name: lang => PrayerTimes.translations[k][lang] ?? '??',
+                name: (lang) => PrayerTimes.translations[k][lang] ?? "??",
                startsAt,
                timeLocal: this.salathTimes[k],
                get untilSeconds() {
-                    let untilSeconds = (startsAt - now) / 1000;
+                    const untilSeconds = (startsAt - now) / 1000;
                    return now > startsAt ? 0 : untilSeconds;
                },
                get untilHuman() {
-                    return formatDuration(this.untilSeconds)
-                },
-            }
-        })
+                    return formatDuration(this.untilSeconds);
+                }
+            };
+        });
    }

    get currentSalath() {
-        let current = this.times.filter(it => it.untilSeconds === 0).at(-1);
+        let current = this.times.filter((it) => it.untilSeconds === 0).at(-1);
        if (current === undefined) {
-            // we're in isha -> today's fajr is almost the same as tomorrows
            const prevDay = new Date(this.date);
            prevDay.setDate(prevDay.getDate() - 1);

            current = new PrayerTimes({date: prevDay.toISOString(), ...this.salathTimes}, this.clock).times.at(-1);
        }
-        return current
+        return current;
    }

    get nextSalath() {
-        let next = this.times
-            .filter(it => it.untilSeconds > 0)[0]
+        let next = this.times.filter((it) => it.untilSeconds > 0)[0];
        if (next === undefined) {
-            // we're in isha -> today's fajr is almost the same as tomorrows
            const nextDay = new Date(this.date);
            nextDay.setDate(nextDay.getDate() + 1);

@@ -129,24 +262,20 @@ class PrayerTimes {
        }

        return {
-            ...next,
-        }
+            ...next
+        };
    }
 }

-/**
- * @param {number} seconds
- * @return {string}
- * */
 function formatDuration(seconds) {
-    const d = new Date(0, 0, 0, 0, 0, seconds);
-    return formatTime(d);
+    const totalSeconds = Math.max(0, Math.floor(seconds));
+    const hours = Math.floor(totalSeconds / 3600);
+    const minutes = Math.floor((totalSeconds % 3600) / 60);
+    const secs = totalSeconds % 60;
+
+    return `${String(hours).padStart(2, "0")}:${String(minutes).padStart(2, "0")}:${String(secs).padStart(2, "0")}`;
 }

-/**
- * @param {Date} then
- * @return {string}
- * */
 function formatTime(then) {
    return new Intl.DateTimeFormat(navigator.language, {
        hour: "numeric",
@@ -155,10 +284,6 @@ function formatTime(then) {
    }).format(then);
 }

-/**
- * @param {Date} then
- * @return {string}
- * */
 function formatDate(then) {
    return new Intl.DateTimeFormat(navigator.language, {
        year: "numeric",
@@ -167,42 +292,78 @@ function formatDate(then) {
    }).format(then);
 }

-/**
- * @param {Date} then
- * @return {string}
- * */
-function formatDateHijri(then) {
-    return new Intl.DateTimeFormat("en-u-ca-islamic-umalqura-nu-latn", {
-        year: "numeric",
-        month: "long",
-        day: "numeric",
-    }).format(then);
-}
-
-/**
- * @param {string} url
- * @param {RequestInit} req
- * */
 async function fetchJSON(url, req = {}) {
    const res = await fetch(url, {
-        ...req,
-    })
-    return res.json()
+        ...req
+    });
+
+    if (!res.ok) {
+        throw new Error(`request failed with status ${res.status}`);
+    }
+
+    return res.json();
 }

-/**
- * @return {Promise<GeolocationCoordinates>}
- * */
 function getUserLocation() {
    return new Promise((resolve, reject) => {
        if (!navigator.geolocation) {
-            reject("Geolocation is not supported by this browser.");
+            reject(new Error("Geolocation is not supported by this browser."));
            return;
        }

        navigator.geolocation.getCurrentPosition(
            (position) => resolve(position.coords),
-            (error) => reject(error.message)
+            (error) => reject(error)
        );
    });
 }
+
+function normalizeLanguageTag(tag) {
+    return String(tag).toLowerCase().split("-")[0];
+}
+
+function parseCoordinate(value) {
+    const parsed = Number.parseFloat(value);
+    return Number.isFinite(parsed) ? parsed : null;
+}
+
+function parseCoordsFromSearchParams(params) {
+    const latitude = parseCoordinate(params.get("latitude") ?? params.get("lat"));
+    const longitude = parseCoordinate(params.get("longitude") ?? params.get("lon"));
+    if (latitude === null || longitude === null) {
+        return null;
+    }
+
+    return {latitude, longitude};
+}
+
+function getHashSearchParams() {
+    const hash = location.hash.startsWith("#") ? location.hash.slice(1) : location.hash;
+    if (hash === "") {
+        return new URLSearchParams();
+    }
+    return new URLSearchParams(hash);
+}
+
+function hasDebugHashFlag() {
+    const params = getHashSearchParams();
+    return params.has("debug") || location.hash === "#debug";
+}
+
+function getURLCoords() {
+    const queryCoords = parseCoordsFromSearchParams(new URLSearchParams(location.search));
+    if (queryCoords) {
+        return queryCoords;
+    }
+
+    return parseCoordsFromSearchParams(getHashSearchParams());
+}
+
+function setURLCoords(latitude, longitude) {
+    const url = new URL(window.location.href);
+    url.searchParams.set("latitude", String(latitude));
+    url.searchParams.set("longitude", String(longitude));
+    url.searchParams.delete("lat");
+    url.searchParams.delete("lon");
+    window.history.replaceState({}, "", url.toString());
+}
@@ -7,6 +7,60 @@ body {
    font-family: 'Inter', sans-serif;
 }

+.location-search {
+    position: relative;
+    max-width: 38rem;
+    margin: 1rem auto;
+    padding: 0 1rem;
+}
+
+.location-search__input {
+    width: 100%;
+    border: 1px solid #ddd;
+    border-radius: 0.75rem;
+    padding: 0.75rem 0.875rem;
+    font: inherit;
+}
+
+.location-search__dropdown {
+    position: absolute;
+    left: 1rem;
+    right: 1rem;
+    top: calc(100% + 0.25rem);
+    background: #fff;
+    border: 1px solid #ddd;
+    border-radius: 0.75rem;
+    max-height: 18rem;
+    overflow: auto;
+    z-index: 5;
+}
+
+.location-search__results {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+.location-search__item {
+    width: 100%;
+    border: 0;
+    border-bottom: 1px solid #f0f0f0;
+    background: transparent;
+    text-align: left;
+    padding: 0.625rem 0.75rem;
+    font: inherit;
+    cursor: pointer;
+}
+
+.location-search__item:hover {
+    background: #fafafa;
+}
+
+.location-search__state {
+    padding: 0.75rem;
+    color: #666;
+}
+
 p {
    margin: 0;
 }
@@ -39,6 +93,21 @@ p + p {
    margin: auto;
 }

+@media (max-width: 768px) {
+    .table-wrapper {
+        max-width: 100%;
+        padding: 0 1rem;
+    }
+
+    .salath-table {
+        font-size: 1.375rem;
+    }
+
+    .clock {
+        font-size: 3rem;
+    }
+}
+
 .salath-table {
    font-size: 2rem;
    font-weight: 600;
@@ -63,14 +132,37 @@ td {
 .salath-name {
 }

-.current {
-    color: tomato;
+.salath-name-group {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.1rem;
+}
+.salath-name-alternatives {
+    line-height: 1.1;
+}
+.salath-name-alternatives span + span:before {
+    content: " / ";
+    opacity: 0.5;
 }

-.salath-name + .salath-name:before {
-    content: '/';
-    opacity: 0.25;
-    margin: 0 0.5em;
+.salath-name-group--center {
+    align-items: center;
+}
+
+.salath-name--primary {
+    line-height: 1.05;
+}
+
+.salath-name--secondary {
+    font-size: 0.58em;
+    font-weight: 500;
+    opacity: 0.75;
+    line-height: 1.1;
+}
+
+.current {
+    color: tomato;
 }

 .salath-time {
Author	SHA1	Message	Date
abdus	45100d4a68	ci: Add Docker support	2026-02-21 02:07:22 +03:00
abdus	960e6f713a	feat: Sync location with query param / hash	2026-02-21 02:07:22 +03:00
abdus	c106d57fe6	feat: Return location info and Hijri date from the prayer times endpoint	2026-02-21 02:07:22 +03:00
abdus	07a9703a89	feat: Update UI	2026-02-21 01:50:59 +03:00
abdus	a53b200c21	feat: Add location search	2026-02-21 01:50:59 +03:00
abdus	26af8af8a9	feat: Add location search	2026-02-21 01:50:59 +03:00
abdus	f520473ed3	feat: Add calculated prayer times provider	2026-02-21 01:50:59 +03:00
abdus	92568ad4e2	chore: Upgrade to Fiber v3	2026-02-21 01:50:59 +03:00
abdus	73316d4e62	feat: Rewrite to use the Diyanet API	2026-02-21 01:50:59 +03:00