fix: Return date as a string instead of local time

pkg/prayer/types.go

@@ -2,6 +2,8 @@ package prayer
 
 import (
 	"context"
+	"database/sql/driver"
+	"encoding/json"
 	"errors"
 	"time"
 )
@@ -23,12 +25,61 @@ 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"`
-	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    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"`
 }