package main

import (
	"log"
	"os"
	"os/signal"
	"sync"

	mbl "git.saintnet.tech/stryan/matrixbotlib"
	"maunium.net/go/mautrix"
	"maunium.net/go/mautrix/event"
)

//GitTag is current git tag
var GitTag string

//GitCommit is current git commit
var GitCommit string

func main() {
	conf, err := mbl.LoadMatrixClientConfig("config.yaml")
	if err != nil {
		conf, err = mbl.LoadMatrixClientConfig("/etc/nunbot/config.yaml")
		if err != nil {
			panic(err)
		}
	}
	store := mbl.NewLazyMemStore(conf.Statefile)
	matrixClient, err := mbl.NewMatrixClient(conf, store)
	if err != nil {
		panic(err)
	}
	syncer := matrixClient.Syncer.(*mautrix.DefaultSyncer)
	mbl.AcceptAllRoomInvites(matrixClient)
	syncer.OnEventType(event.EventMessage, func(source mautrix.EventSource, evt *event.Event) {
		if evt.Sender == matrixClient.UserID {
			return //ignore events from self
		}
		cmd, err := mbl.ParseCommand(evt, "nun")
		if err != nil {
			if err != mbl.ErrCmdParseNoPrefix {
				log.Printf("invalid command: %v", err)
			}
			return
		}
		switch cmd[1] {
		case "version":
			// print version
			if GitTag != "" {
				matrixClient.SendText(evt.RoomID, "NunBot version "+GitTag)
			} else {
				matrixClient.SendText(evt.RoomID, "NunBot version "+GitCommit)
			}
		case "help":
			matrixClient.SendText(evt.RoomID, "Supported commands: version, help")
		default:
			//command not found
			matrixClient.SendText(evt.RoomID, "command not recognized")
		}
	})
	var wg sync.WaitGroup
	stop := make(chan bool)
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)
	go func() {
		<-c
		log.Println("trying to shutdown cleanly")
		matrixClient.StopSync()
		stop <- true
	}()

	nun := newNunWatch(stop, matrixClient, 2)
	wg.Add(1)
	go func() {

		err = matrixClient.Sync()
		if err != nil {
			log.Println(err)
		}
		wg.Done()
		log.Println("matrix client shutdown")

	}()

	wg.Add(1)
	go func() {
		nun.Main()
		wg.Done()
		log.Println("nun watch shutdown")
	}()
	log.Println("nunbot running")
	wg.Wait()
	log.Println("shutting down")
}