fix: Return date as a string instead of local time

main.go

@@ -38,11 +38,12 @@ func newServices() (api.Services, func(), error) {
 		return api.Services{}, nil, fmt.Errorf("failed to init db: %w", err)
 	}
 
-	dbProvider := dbtimesprovider.New(db, diyanetAPIProvider)
 	if err := dbtimesprovider.Migrate(db.Db.(*sql.DB)); err != nil {
 		return api.Services{}, nil, fmt.Errorf("failed to migrate database: %w", err)
 	}
 
+	dbProvider := dbtimesprovider.New(db, diyanetAPIProvider)
+
 	return api.Services{
 			TimesProvider:         dbProvider,
 			LocationTimesProvider: diyanetAPIProvider,

pkg/dbtimesprovider/provider.go

@@ -42,18 +42,19 @@ func (p Provider) Name() string {
 
 func (p Provider) Get(ctx context.Context, location string) ([]prayer.Times, error) {
 	times, err := p.loadTimes(ctx, location)
-	if err == nil && len(times) != 0 {
+	if err != nil {
-		return times, nil
-	} else 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) > 1 {
+	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)
 		}
@@ -112,7 +113,7 @@ func Migrate(con *sql.DB) error {
 type prayerTimesRow struct {
 	ProviderID int64  `db:"provider_id"`
 	LocationID string `db:"location_id"`
-	Date       time.Time `db:"date"`
+	Date       string `db:"date"`
 	Fajr       string `db:"fajr"`
 	Sunrise    string `db:"sunrise"`
 	Dhuhr      string `db:"dhuhr"`
@@ -166,7 +167,7 @@ func (p Provider) saveTimes(ctx context.Context, locationID string, times []pray
 
 func (p Provider) loadTimes(ctx context.Context, locationID string) ([]prayer.Times, error) {
 	now := p.clockFunc()
-	today := now.Truncate(time.Hour * 24)
+	today := now.UTC().Truncate(time.Hour * 24)
 
 	q := p.db.
 		From(goqu.T("prayer_times").As("pt")).

pkg/diyanet/scraper.go

@@ -53,7 +53,7 @@ func (d Provider) Get(ctx context.Context, location string) ([]prayer.Times, err
 		}
 
 		row := prayer.Times{
-			Date:    parsedDate,
+			Date:    parsedDate.Format(time.DateOnly),
 			Fajr:    el.Find("td:nth-of-type(2)").Text(),
 			Sunrise: el.Find("td:nth-of-type(3)").Text(),
 			Dhuhr:   el.Find("td:nth-of-type(4)").Text(),

pkg/diyanetapi/provider.go

@@ -73,17 +73,21 @@ func (d Provider) parseResponse(res *req.Response) ([]prayer.Times, error) {
 		return nil, fmt.Errorf("received error: %s", res.String())
 	}
 
+	if len(response.ResultObject.PrayerTimes) == 0 {
+		return nil, nil
+	}
+
 	var times []prayer.Times
 	const format = "15:04"
-	now := time.Now()
+	today := time.Now().UTC().Truncate(time.Hour * 24)
 	for _, pt := range response.ResultObject.PrayerTimes {
-		then := pt.Date.UTC().Truncate(time.Hour * 24)
+		then := prayer.Date(pt.Date).Time()
-		if then.Before(now) {
+		if then.Before(today) {
 			continue
 		}
 
 		times = append(times, prayer.Times{
-			Date:    then,
+			Date:    pt.Date.Format(time.DateOnly),
 			Fajr:    pt.Fajr.Format(format),
 			Sunrise: pt.Sunrise.Format(format),
 			Dhuhr:   pt.Dhuhr.Format(format),

pkg/diyanetapi/provider_test.go

@@ -30,6 +30,8 @@ func TestDiyanetAPI_GetByCoords(t *testing.T) {
 		times, err := p.Get(context.Background(), "11104")
 		assert.NoError(t, err)
 		assert.NotEmpty(t, times)
-		t.Logf("%#+v", times[0])
+		for _, time := range times {
+			t.Log(time)
+		}
 	})
 }

pkg/prayer/types.go

@@ -2,6 +2,8 @@ package prayer
 
 import (
 	"context"
+	"database/sql/driver"
+	"encoding/json"
 	"errors"
 	"time"
 )
@@ -23,8 +25,57 @@ type LocationTimesProvider interface {
 	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 Times struct {
-	Date    time.Time `json:"date"`
+	Date    string `json:"date"`
 	Fajr    string `json:"fajr"`
 	Sunrise string `json:"sunrise"`
 	Dhuhr   string `json:"dhuhr"`