package main

import (
	"context"
	"fmt"
	"os"
	"os/signal"

	"go.alanpearce.eu/website/internal/server"
	"go.alanpearce.eu/x/log"

	"github.com/ardanlabs/conf/v3"
	"gitlab.com/tozd/go/errors"
)

func main() {
	runtimeConfig := server.Config{}
	help, err := conf.Parse("", &runtimeConfig)
	if err != nil {
		if errors.Is(err, conf.ErrHelpWanted) {
			fmt.Println(help)
			os.Exit(1)
		}
		panic("parsing runtime configuration" + err.Error())
	}
	log := log.Configure(!runtimeConfig.Development)

	if listenAddress := runtimeConfig.ListenAddress; listenAddress[0] == '[' {
		runtimeConfig.ListenAddress = listenAddress[1 : len(listenAddress)-1]
	}

	if runtimeConfig.Development {
		tmpdir, err := os.MkdirTemp("", "website")
		if err != nil {
			log.Fatal("could not create temporary directory", "error", err)
		}
		defer os.RemoveAll(tmpdir)
		runtimeConfig.Root = tmpdir
	}

	sv, err := server.New(&runtimeConfig, log)
	if err != nil {
		log.Error("could not create server", "error", err)

		return
	}

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

	go func() {
		err = sv.Start()
		if err != nil {
			// Error starting or closing listener:
			log.Fatal("error starting server", err)
		}
	}()

	<-ctx.Done()
	log.Debug("calling stop")
	sv.Stop()
	log.Debug("done")
}