Library: filter by file properties (quality, codec, HDR, DV, language)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/sonarr/sonarr.go

@@ -239,3 +239,10 @@ func (c *Client) SeasonReleases(ctx context.Context, seriesID, season int) ([]ar
 		"seasonNumber": {strconv.Itoa(season)},
 	})
 }
+
+// EpisodeFiles lists the downloaded files of a library series.
+func (c *Client) EpisodeFiles(ctx context.Context, seriesID int) ([]arr.MediaFile, error) {
+	var files []arr.MediaFile
+	err := c.Do(ctx, http.MethodGet, "episodefile", url.Values{"seriesId": {strconv.Itoa(seriesID)}}, nil, &files)
+	return files, err
+}

internal/sonarr/sonarr_test.go

@@ -148,3 +148,19 @@ func TestEpisodesAndReleaseQueries(t *testing.T) {
 		}
 	}
 }
+
+func TestEpisodeFiles(t *testing.T) {
+	c := newTestClient(t, func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/api/v3/episodefile" || r.URL.Query().Get("seriesId") != "4" {
+			t.Errorf("unexpected request %s", r.URL)
+		}
+		w.Write([]byte(`[{"size":5,"quality":{"quality":{"name":"WEBDL-1080p","resolution":1080}},"mediaInfo":{"videoCodec":"x264"}}]`))
+	})
+	files, err := c.EpisodeFiles(context.Background(), 4)
+	if err != nil || len(files) != 1 {
+		t.Fatalf("files=%v err=%v", files, err)
+	}
+	if a := files[0].Attrs(); a.Resolution != 1080 || a.Codec != "x264" {
+		t.Errorf("attrs = %+v", a)
+	}
+}