package main

import (
	"fmt"
	"os"
	"strings"

	"github.com/rs/zerolog/log"

	"prayertimes/internal/api"
	"prayertimes/internal/net"
	"prayertimes/pkg/citydb"
	"prayertimes/pkg/diyanetapi"
	"prayertimes/pkg/diyanetcalc"
	"prayertimes/pkg/diyanetprovider"
)

func main() {
	if err := run(); err != nil {
		log.Fatal().Err(err).Msg("failed to run app")
	}
}

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")
	}

	locationProvider, err := citydb.Open(dbPath)
	if err != nil {
		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,
	}

	app := api.New(services)
	if err := app.Listen(":" + port); err != nil {
		return fmt.Errorf("failed to listen on http port: %w", err)
	}

	return nil
}

func getDefaultEnv(name string, defaultValue string) string {
	v, ok := os.LookupEnv(name)
	if !ok {
		return defaultValue
	}
	return v
}