refactoring-1

introduced pipelines and abstracted download process.go in Downloader interface

server/internal/downloaders/logging.go

@@ -0,0 +1,68 @@
+package downloaders
+
+import (
+	"encoding/json"
+	"log/slog"
+	"strings"
+
+	"github.com/marcopiovanello/yt-dlp-web-ui/v3/server/internal"
+)
+
+type LogConsumer interface {
+	GetName() string
+	ParseLogEntry(entry []byte, downloader Downloader)
+}
+
+type JSONLogConsumer struct{}
+
+func NewJSONLogConsumer() LogConsumer {
+	return &JSONLogConsumer{}
+}
+
+func (j *JSONLogConsumer) GetName() string { return "json-log-consumer" }
+
+func (j *JSONLogConsumer) ParseLogEntry(entry []byte, d Downloader) {
+	var progress internal.ProgressTemplate
+	var postprocess internal.PostprocessTemplate
+
+	if err := json.Unmarshal(entry, &progress); err == nil {
+		d.SetProgress(internal.DownloadProgress{
+			Status:     internal.StatusDownloading,
+			Percentage: progress.Percentage,
+			Speed:      progress.Speed,
+			ETA:        progress.Eta,
+		})
+
+		slog.Info("progress",
+			slog.String("id", j.GetShortId(d.GetId())),
+			slog.String("url", d.GetUrl()),
+			slog.String("percentage", progress.Percentage),
+		)
+	}
+
+	if err := json.Unmarshal(entry, &postprocess); err == nil {
+		d.UpdateSavedFilePath(postprocess.FilePath)
+	}
+}
+
+func (j *JSONLogConsumer) GetShortId(id string) string {
+	return strings.Split(id, "-")[0]
+}
+
+//TODO: split in different files
+
+type FFMpegLogConsumer struct{}
+
+func NewFFMpegLogConsumer() LogConsumer {
+	return &JSONLogConsumer{}
+}
+
+func (f *FFMpegLogConsumer) GetName() string { return "ffmpeg-log-consumer" }
+
+func (f *FFMpegLogConsumer) ParseLogEntry(entry []byte, d Downloader) {
+	slog.Info("ffmpeg output",
+		slog.String("id", d.GetId()),
+		slog.String("url", d.GetUrl()),
+		slog.String("output", string(entry)),
+	)
+}