package main

import (
	"flag"
	"fmt"
	"net/http"
	"os"
	"os/signal"

	"go.jolheiser.com/invitea/router"

	"github.com/peterbourgon/ff/v3"
	"github.com/peterbourgon/ff/v3/fftoml"
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"
)

func main() {
	fs := flag.NewFlagSet("invitea", flag.ExitOnError)
	jsonLog := fs.Bool("json", false, "Enable JSON logging")
	port := fs.Int("port", 8080, "Port to run on")
	level := zerolog.InfoLevel
	fs.Func("level", "Logging level (debug, info, error)", func(s string) error {
		lvl, err := zerolog.ParseLevel(s)
		if err != nil {
			return err
		}
		level = lvl
		return nil
	})
	if err := ff.Parse(fs, os.Args[1:],
		ff.WithEnvVarPrefix("INVITEA"),
		ff.WithConfigFileFlag("config"),
		ff.WithAllowMissingConfigFile(true),
		ff.WithConfigFileParser(fftoml.New().Parse),
	); err != nil {
		log.Fatal().Err(err).Msg("")
	}

	zerolog.SetGlobalLevel(level)

	if !*jsonLog {
		log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
	}

	r := router.New()

	go func() {
		log.Debug().Msgf("Listening at http://localhost:%d", *port)
		if err := http.ListenAndServe(fmt.Sprintf(":%d", *port), r); err != nil {
			log.Err(err).Msg("")
		}
	}()

	ch := make(chan os.Signal, 1)
	signal.Notify(ch, os.Interrupt, os.Kill)
	<-ch
}