待ち行列への登録と状態表示を追加（新着からの登録、/queue、DATABASE_URL）

internal/web/actions.go

@@ -0,0 +1,90 @@
+package web
+
+import (
+	"errors"
+	"net/http"
+
+	"gitea.kazu634.com/kazu634/tver/internal/store"
+)
+
+type episodeActionView struct {
+	ID, Genre, Status, StatusText string
+}
+
+func statusText(status string) string {
+	switch status {
+	case "queued":
+		return "待機中"
+	case "running":
+		return "ダウンロード中"
+	case "succeeded":
+		return "完了"
+	case "failed":
+		return "失敗"
+	case "canceled":
+		return "取り消し"
+	default:
+		return ""
+	}
+}
+
+func (s *server) enqueue(w http.ResponseWriter, r *http.Request) {
+	genre, id, ok := episodeForm(w, r)
+	if !ok {
+		return
+	}
+	ep, found := s.cachedEpisode(genre, id)
+	if !found {
+		http.Error(w, "新着キャッシュにエピソードがありません。新着を再表示してください", http.StatusNotFound)
+		return
+	}
+	job, _, err := s.jobs.Enqueue(r.Context(), storeEpisode(ep), "manual")
+	if err != nil {
+		s.logger.Printf("待ち行列への登録に失敗: %v", err)
+		http.Error(w, "待ち行列に登録できませんでした", http.StatusInternalServerError)
+		return
+	}
+	s.episodeActionResponse(w, r, episodeActionView{ID: id, Genre: genre, Status: job.Status, StatusText: statusText(job.Status)})
+}
+
+func (s *server) retryEpisode(w http.ResponseWriter, r *http.Request) {
+	genre, id, ok := episodeForm(w, r)
+	if !ok {
+		return
+	}
+	if _, found := s.cachedEpisode(genre, id); !found {
+		http.Error(w, "新着キャッシュにエピソードがありません。新着を再表示してください", http.StatusNotFound)
+		return
+	}
+	if err := s.jobs.RetryEpisode(r.Context(), id); err != nil {
+		if errors.Is(err, store.ErrInvalidTransition) {
+			http.Error(w, "再試行できる状態ではありません", http.StatusConflict)
+		} else {
+			s.logger.Printf("ジョブの再試行に失敗: %v", err)
+			http.Error(w, "再試行できませんでした", http.StatusInternalServerError)
+		}
+		return
+	}
+	s.episodeActionResponse(w, r, episodeActionView{ID: id, Genre: genre, Status: "queued", StatusText: statusText("queued")})
+}
+
+func episodeForm(w http.ResponseWriter, r *http.Request) (string, string, bool) {
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "フォームを読み取れませんでした", http.StatusBadRequest)
+		return "", "", false
+	}
+	genre, id := r.Form.Get("genre"), r.Form.Get("episode_id")
+	if (genre != "drama" && genre != "variety") || id == "" {
+		http.Error(w, "ジャンルまたはエピソード ID が不正です", http.StatusBadRequest)
+		return "", "", false
+	}
+	return genre, id, true
+}
+
+func (s *server) episodeActionResponse(w http.ResponseWriter, r *http.Request, view episodeActionView) {
+	if r.Header.Get("HX-Request") != "true" {
+		http.Redirect(w, r, "/?genre="+view.Genre, http.StatusSeeOther)
+		return
+	}
+	s.render(w, "episode_action", view)
+}