107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
package main
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import (
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"fmt"
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"log"
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"github.com/bwmarrin/discordgo"
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)
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// startAsyncDownload initiates a download in a goroutine and handles progress updates
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func startAsyncDownload(s *discordgo.Session, i *discordgo.InteractionCreate, url, videoFormatID, audioFormatID, outputDir, tempDir string) {
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progressChan := make(chan ProgressUpdate, 1)
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resultChan := make(chan DownloadResult, 1)
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// Start download in goroutine
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go func() {
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defer close(resultChan)
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defer func() {
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if r := recover(); r != nil {
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// Handle panic from DownloadVideo
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resultChan <- DownloadResult{
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Success: false,
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Message: fmt.Sprintf("Download failed: %v", r),
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URL: url,
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Format: fmt.Sprintf("video: %s, audio: %s", videoFormatID, audioFormatID),
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Error: fmt.Errorf("%v", r),
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}
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}
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}()
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// Call DownloadVideo (it panics on error instead of returning error)
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DownloadVideo(outputDir, tempDir, url, DownloadOptions{
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EmbedThumbnail: true,
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IncludeSubtitles: true,
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VideoFormatID: videoFormatID,
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AudioFormatID: audioFormatID,
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}, progressChan)
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// If we reach here, download was successful
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resultChan <- DownloadResult{
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Success: true,
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Message: "Video Downloaded Successfully!",
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URL: url,
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Format: fmt.Sprintf("video: %s, audio: %s", videoFormatID, audioFormatID),
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Error: nil,
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}
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}()
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// Handle progress and results asynchronously
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go func() {
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_, err := s.InteractionResponseEdit(i.Interaction, &discordgo.WebhookEdit{
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Content: ptr("⏬ downloading: starting..."),
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})
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if err != nil {
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log.Printf("Error updating interaction: %v", err)
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}
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for {
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select {
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case prog, ok := <-progressChan:
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if !ok {
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progressChan = nil
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continue
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}
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var content string
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if prog.Phase == "post-processing" {
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content = "⚙️ post-processing"
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} else {
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var progressStr string
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if prog.DownloadedBytes > 0 {
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progressStr = formatBytes(prog.DownloadedBytes) + " downloaded"
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} else {
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progressStr = "starting..."
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}
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content = fmt.Sprintf("Downloading Video: %s", progressStr)
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}
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_, err := s.InteractionResponseEdit(i.Interaction, &discordgo.WebhookEdit{
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Content: ptr(content),
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})
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if err != nil {
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log.Printf("Error updating progress: %v", err)
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}
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case result := <-resultChan:
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if result.Success {
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_, err = s.FollowupMessageCreate(i.Interaction, false, &discordgo.WebhookParams{
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Content: "📥 Video downloaded: " + result.URL,
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})
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if err != nil {
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log.Printf("Error updating interaction: %v", err)
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}
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} else {
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_, err = s.InteractionResponseEdit(i.Interaction, &discordgo.WebhookEdit{
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Content: ptr("❌ Download failed: " + result.Message),
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})
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if err != nil {
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log.Printf("Error updating interaction: %v", err)
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}
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}
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return
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}
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}
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}()
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}
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