Download REST API endpoints (#72)

* backend and frontend hotfixes, see message

Improved rendering on the frontend by cutting unecessary useStates.
Backend side, downloads now auto resume even on application kill.

* download rest api endpoints, general code refactor

* download request json mappings

server/internal/common.go

@@ -66,8 +66,8 @@ type AbortRequest struct {
 // struct representing the intent to start a download
 type DownloadRequest struct {
 	Id     string
-	URL    string
-	Path   string
-	Rename string
-	Params []string
+	URL    string   `json:"url"`
+	Path   string   `json:"path"`
+	Rename string   `json:"rename"`
+	Params []string `json:"params"`
 }

server/internal/memory_db.go

@@ -125,12 +125,18 @@ func (m *MemoryDB) Restore() {
 	}
 
 	for _, proc := range session.Processes {
-		m.table.Store(proc.Id, &Process{
+		restored := &Process{
 			Id:       proc.Id,
 			Url:      proc.Info.URL,
 			Info:     proc.Info,
 			Progress: proc.Progress,
-		})
+		}
+
+		m.table.Store(proc.Id, restored)
+
+		if restored.Progress.Percentage != "-1" {
+			go restored.Start()
+		}
 	}
 
 	log.Println(cli.BgGreen, "Successfully restored session", cli.Reset)

server/internal/process.go

@@ -16,6 +16,7 @@ import (
 	"time"
 
 	"github.com/marcopeocchi/fazzoletti/slices"
+	"github.com/marcopeocchi/yt-dlp-web-ui/server/cli"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
 )
 
@@ -136,8 +137,11 @@ func (p *Process) Start() {
 					Speed:      stdout.Speed,
 					ETA:        stdout.Eta,
 				}
-				shortId := strings.Split(p.Id, "-")[0]
-				log.Printf("[%s] %s %s\n", shortId, p.Url, p.Progress.Percentage)
+				log.Println(
+					cli.BgGreen, "DL", cli.Reset,
+					cli.BgBlue, p.getShortId(), cli.Reset,
+					p.Url, stdout.Percentage,
+				)
 			}
 		}
 	}()
@@ -156,6 +160,14 @@ func (p *Process) Complete() {
 		Speed:      0,
 		ETA:        0,
 	}
+
+	shortId := p.getShortId()
+
+	log.Println(
+		cli.BgMagenta, "FINISH", cli.Reset,
+		cli.BgBlue, shortId, cli.Reset,
+		p.Url,
+	)
 }
 
 // Kill a process and remove it from the memory
@@ -202,6 +214,12 @@ func (p *Process) GetFormatsSync() (DownloadFormats, error) {
 		return DownloadFormats{}, err
 	}
 
+	log.Println(
+		cli.BgRed, "Metadata", cli.Reset,
+		cli.BgBlue, p.getShortId(), cli.Reset,
+		p.Url,
+	)
+
 	go func() {
 		decodingError = json.NewDecoder(stdout).Decode(&info)
 		wg.Done()
@@ -248,6 +266,12 @@ func (p *Process) SetMetadata() error {
 		return err
 	}
 
+	log.Println(
+		cli.BgRed, "Metadata", cli.Reset,
+		cli.BgBlue, p.getShortId(), cli.Reset,
+		p.Url,
+	)
+
 	err = json.NewDecoder(stdout).Decode(&info)
 	if err != nil {
 		return err
@@ -260,3 +284,7 @@ func (p *Process) SetMetadata() error {
 
 	return err
 }
+
+func (p *Process) getShortId() string {
+	return strings.Split(p.Id, "-")[0]
+}