feat: Add yt-dlp support for fetching video information

ytdlp/fetch.go

@@ -0,0 +1,28 @@
+package ytdlp
+
+import (
+	"context"
+	"fmt"
+
+	ytd "github.com/lrstanley/go-ytdlp"
+)
+
+// Fetch fetches info from a video on YouTube or other sites supported by yt-dlp
+func Fetch(ctx context.Context, url string) (*ytd.ExtractedInfo, error) {
+	dl := ytd.New().DumpJSON().RemoteComponents("ejs:github")
+	// TODO Add cookies if available
+
+	res, err := dl.Run(ctx, url)
+	if err != nil {
+		return nil, err
+	}
+
+	infos, err := res.GetExtractedInfo()
+	if err != nil {
+		return nil, err
+	}
+	if len(infos) != 1 {
+		return nil, fmt.Errorf("%d infos", len(infos))
+	}
+	return infos[0], nil
+}