89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package downloader
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import (
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"context"
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"log"
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"m3u8-downloader/pkg/constants"
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"m3u8-downloader/pkg/media"
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"m3u8-downloader/pkg/transfer"
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"os"
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"os/signal"
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"sync"
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"syscall"
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"time"
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)
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func Download(masterURL string, eventName string, debug bool) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Goroutine to listen for shutdown signals
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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<-sigChan
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log.Println("Shutting down...")
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cancel()
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}()
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var wg sync.WaitGroup
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var transferService *transfer.TransferService
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if constants.EnableNASTransfer {
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ts, err := transfer.NewTrasferService(constants.NASOutputPath, eventName)
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if err != nil {
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log.Printf("Failed to create transfer service: %v", err)
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log.Println("Continuing without transfer service...")
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} else {
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transferService = ts
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := transferService.Start(ctx); err != nil && err != context.Canceled {
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log.Printf("Transfer service error: %v", err)
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}
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}()
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log.Println("Transfer service started.")
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}
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}
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manifestWriter := media.NewManifestWriter(eventName)
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variants, err := media.GetAllVariants(masterURL, constants.LocalOutputDirPath+"/"+eventName, manifestWriter)
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if err != nil {
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log.Fatalf("Failed to get variants: %v", err)
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}
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log.Printf("Found %d variants", len(variants))
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sem := make(chan struct{}, constants.WorkerCount*len(variants))
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manifest := media.NewManifestWriter(eventName)
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for _, variant := range variants {
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// Debug mode only tracks one variant for easier debugging
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if debug {
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if variant.Resolution != "1080p" {
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continue
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}
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}
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wg.Add(1)
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go func(v *media.StreamVariant) {
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defer wg.Done()
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media.VariantDownloader(ctx, v, sem, manifest)
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}(variant)
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}
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wg.Wait()
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log.Println("All variant downloaders finished.")
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if transferService != nil {
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shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer shutdownCancel()
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transferService.Shutdown(shutdownCtx)
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}
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log.Println("All Services shut down.")
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manifestWriter.WriteManifest()
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log.Println("Manifest written.")
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}
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