package main

import (
	"os/exec"

	"git.milar.in/milarin/channel"
	"git.milar.in/nyaanime/logic"
	"github.com/fsnotify/fsnotify"
)

var Runner = InitializeRunner()

func main() {
	// check for ffprobe in PATH
	if _, err := exec.LookPath("ffprobe"); err != nil {
		panic(err) // TODO error handling
	}

	// get access token once at startup to be sure that an access token is obtainable at all
	if _, err := logic.GetAnilistAccessToken(); err != nil {
		panic(err) // TODO error handling
	}

	if err := InitTelegramBot(); err != nil {
		panic(err) // TODO error handling
	}

	logic.PrintPriorityTables()

	fileChan, err := WatchDirectory(fsnotify.Create, DownloadPath)
	if err != nil {
		panic(err) // TODO error handling
	}

	fileHandleChan := channel.Map(fileChan, NewFileHandle)
	workChan, logChan := channel.Tee(fileHandleChan)

	go channel.Each(workChan, HandleFileInRunner)
	channel.Each(logChan, PrintFileHandle)
}

func HandleFileInRunner(fh *FileHandle) {
	Runner.Run(func() { HandleFile(fh) })
}