package main

import (
	"context"
	"librapi/server"
	"librapi/services"
	"os"
	"os/signal"
	"strconv"
	"sync"

	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"

	"librapi/handlers/login"
	"librapi/handlers/upload"
)

const DefaultPort = 8585

var APIPort = sync.OnceValue[int](func() int {
	port, err := strconv.Atoi(os.Getenv("API_PORT"))
	if err != nil {
		log.Debug().Err(err).Msg("unable to load API_PORT")
		return DefaultPort
	}
	return port
})

func initLogger() {
	zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
	log.Logger = log.With().Caller().Logger().Output(zerolog.ConsoleWriter{Out: os.Stderr})
}

func main() {
	initLogger()

	ctx, fnCancel := signal.NotifyContext(context.Background(), os.Kill, os.Interrupt)
	defer fnCancel()

	sessionStore := services.NewSessionStore(ctx)

	srv := server.NewServer(
		ctx,
		APIPort(),
		server.NewHandler("/upload", upload.Handler(sessionStore)),
		server.NewHandler("/login", login.Handler(sessionStore)),
	)
	srv.Serve()

	<-srv.Done()
	<-sessionStore.Done()
}