package main

import (
	"database/sql"
	"fmt"
	"os"

	"github.com/rs/zerolog/log"

	"prayertimes/internal/api"
	"prayertimes/internal/database"
	"prayertimes/internal/net"
	"prayertimes/pkg/dbtimesprovider"
	"prayertimes/pkg/diyanetapi"
)

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")
	}
}

func newServices() (api.Services, func(), error) {
	diyanetAPIProvider := diyanetapi.New(net.ReqClient)

	db, err := database.NewSqliteDB(getDefaultEnv("DATABASE_URL", "app.sqlite3"))
	if err != nil {
		return api.Services{}, nil, fmt.Errorf("failed to init db: %w", err)
	}

	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,
		}, 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
}