package main

import (
	"context"
	"flag"
	"fmt"
	"homestead/homestead_to_go/relay"
	"homestead/homestead_to_go/relay/commands"
	"log/slog"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/disgoorg/disgo/bot"
	"github.com/disgoorg/disgo/handler"
)

func main() {
	path := flag.String("config", "config.toml", "path to config")
	flag.Parse()

	cfg, err := relay.LoadConfig(*path)
	if err != nil {
		slog.Error("Failed to read config", slog.Any("err", err))
		os.Exit(-1)
	}

	fmt.Printf("%v\n", cfg)

	setupLogger(cfg.Log)
	slog.Info(fmt.Sprintf("Starting %s...", cfg.Bot.Name))

	b := relay.New(*cfg)

	h := handler.New()
	h.Command("/ping", commands.PingHandler)
	h.Command("/sync", commands.SyncHandler)

	if err = b.SetupBot(h, bot.NewListenerFunc(b.OnReady)); err != nil {
		slog.Error("Failed to setup bot", slog.Any("err", err))
		os.Exit(-1)
	}

	defer func() {
		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
		defer cancel()
		b.Client.Close(ctx)
	}()

	if err = handler.SyncCommands(b.Client, commands.Commands, cfg.Bot.DevGuilds); err != nil {
		slog.Error("Failed to sync commands", slog.Any("err", err))
	}

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	if err = b.Client.OpenGateway(ctx); err != nil {
		slog.Error("Failed to open gateway", slog.Any("err", err))
		os.Exit(-1)
	}

	slog.Info("Bot is running. Press CTRL-C to exit.")
	s := make(chan os.Signal, 1)
	signal.Notify(s, syscall.SIGINT, syscall.SIGTERM)
	<-s
	slog.Info("Shutting down bot...")
}

func setupLogger(cfg relay.LogConfig) {
	opts := &slog.HandlerOptions{
		AddSource: cfg.AddSource,
		Level:     cfg.Level,
	}

	var sHandler slog.Handler
	switch cfg.Format {
	case "json":
		sHandler = slog.NewJSONHandler(os.Stdout, opts)
	case "text":
		sHandler = slog.NewTextHandler(os.Stdout, opts)
	default:
		slog.Error("Unknown log format", slog.String("format", cfg.Format))
		os.Exit(-1)
	}
	slog.SetDefault(slog.New(sHandler))
}

// $ git config user.name  <user>
// $ git config user.email <email>
// $ go mod tidy; go mod download