feat: Add API

feat: Add DB-backed time provider

main.go

@@ -1,33 +1,61 @@
 package main
 
 import (
+	"database/sql"
+	"fmt"
 	"os"
 
 	"github.com/rs/zerolog/log"
 
 	"prayertimes/internal/api"
+	"prayertimes/internal/database"
 	"prayertimes/internal/scrapeutils"
+	"prayertimes/pkg/dbtimesprovider"
 	"prayertimes/pkg/diyanet"
 )
 
 func main() {
-	port, ok := os.LookupEnv("PORT")
-	if !ok {
-		port = "8000"
+	port := getDefaultEnv("PORT", "8000")
+
+	services, shutdown, err := newServices()
+	if err != nil {
+		log.Fatal().Err(err).Msg("failed to init services")
 	}
-	services := newServices()
+	defer shutdown()
 	app := api.New(services)
-	err := app.Listen(":" + port)
+
+	err = app.Listen(":" + port)
 	if err != nil {
 		log.Fatal().Err(err).Msg("exit with an error")
 	}
 }
 
-func newServices() api.Services {
-	d := diyanet.Diyanet{
+func newServices() (api.Services, func(), error) {
+	diyanetProvider := diyanet.Diyanet{
 		FetcherFunc: scrapeutils.GetParsed,
 	}
-	return api.Services{
-		PrayerTimesProvider: d,
+
+	db, err := database.NewSqliteDB(getDefaultEnv("DATABASE_URL", "app.sqlite3"))
+	if err != nil {
+		return api.Services{}, nil, fmt.Errorf("failed to init db: %w", err)
 	}
+
+	dbProvider := dbtimesprovider.New(db, diyanetProvider)
+	if err := dbtimesprovider.Migrate(db.Db.(*sql.DB)); err != nil {
+		return api.Services{}, nil, fmt.Errorf("failed to migrate database: %w", err)
+	}
+
+	return api.Services{
+			PrayerTimesProvider: dbProvider,
+		}, func() {
+			defer db.Db.(*sql.DB).Close()
+		}, nil
+}
+
+func getDefaultEnv(name string, defaultValue string) string {
+	v, ok := os.LookupEnv(name)
+	if !ok {
+		return defaultValue
+	}
+	return v
 }