package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	"app/cmd"

	"github.com/kf5grd/keybasebot"
	"samhofi.us/x/keybase/v2"
	"samhofi.us/x/keybase/v2/types/chat1"
)

// We'll use this to create a writer for the Logger which will be able to write logs to
// stdout, and optionally also to a Keybase chat conversation
type kbWriter struct {
	convID chat1.ConvIDStr
	bot    *keybasebot.Bot
}

func (k kbWriter) Write(p []byte) (n int, err error) {
	opt := keybase.SendMessageOptions{
		ConversationID: k.convID,
		Message:        keybase.SendMessageBody{Body: string(p)},
	}
	go k.bot.KB.SendMessage("send", opt)
	fmt.Fprintf(os.Stdout, string(p))
	return len(p), nil
}

func main() {
	opts := parseArgs(os.Args)
	b := keybasebot.New("", keybase.SetHomePath(opts.HomePath))
	b.Debug = opts.Debug
	b.JSON = opts.JSON

	// set up the log writer
	w := kbWriter{
		convID: chat1.ConvIDStr(opts.LogConvIDStr),
		bot:    b,
	}
	b.LogWriter = w
	// register the bot commands
	b.Commands = append(b.Commands,
		keybasebot.BotCommand{
			Name: "Ping",
			Ad:   &cmd.PingAd,
			Run:  keybasebot.Adapt(cmd.SendPong, keybasebot.MessageType("text"), keybasebot.CommandPrefix("!ping")),
		},
	)
	// catch ctrl-c so we can clean up
	c := make(chan os.Signal)
	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
	go func() {
		<-c
		b.Logger.Info("Caught SIGINT, cleaning up.")
		b.KB.ClearCommands()
		b.Logger.Info("Cleared command adverts. Bye.")
		time.Sleep(time.Second * 2)
		os.Exit(0)
	}()
	// then run
	b.Run()
}