initial commit

main.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"os/signal"
+	"sync"
+	"syscall"
+
+	"git.tordarus.net/nyaanime/logic"
+	"git.tordarus.net/tordarus/channel"
+	"github.com/fsnotify/fsnotify"
+)
+
+var (
+	// AppCtx notifies all threads to finish their work and shutdown
+	AppCtx, cancelAppCtx = context.WithCancel(context.Background())
+	// AppExitWg is waiting for all threads until they are done
+	AppExitWg = &sync.WaitGroup{}
+
+	Runner = InitializeRunner()
+)
+
+func main() {
+	signalChan := make(chan os.Signal, 1)
+	signal.Notify(signalChan, syscall.SIGTERM, syscall.SIGINT)
+	go func() {
+		<-signalChan
+		exit()
+	}()
+
+	// 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)
+
+	AppExitWg.Add(1)
+	go func() {
+		defer AppExitWg.Done()
+		channel.Each(workChan, HandleFileInRunner)
+	}()
+
+	channel.Each(logChan, PrintFileHandle)
+}
+
+func HandleFileInRunner(fh *FileHandle) {
+	Runner.Run(func() { HandleFile(fh) })
+}
+
+func exit() {
+	cancelAppCtx()   // notify all threads to shutdown
+	AppExitWg.Wait() // wait for threads until shutdown
+}