feat(backend): add Store.Get and bookmark view helpers

backend/store_test.go

@@ -34,6 +34,16 @@ func newTestServer(t *testing.T) http.Handler {
 	return newRouter(store, testConfig())
 }
 
+func newTestStore(t *testing.T) *Store {
+	t.Helper()
+	store, err := OpenStore(filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatalf("OpenStore: %v", err)
+	}
+	t.Cleanup(func() { store.Close() })
+	return store
+}
+
 func auth(req *http.Request) *http.Request {
 	req.Header.Set("Authorization", "Bearer "+testToken)
 	return req
@@ -433,3 +443,75 @@ func TestOpenStoreMigratesLegacySchema(t *testing.T) {
 	}
 	store2.Close()
 }
+
+func TestStoreGet(t *testing.T) {
+	store := newTestStore(t)
+	if _, err := store.Upsert(Bookmark{
+		Key: "asura:solo", Site: "asura", SeriesID: "solo",
+		Title: "Solo Leveling", LastChapterNum: 45, UpdatedAt: 1000,
+	}); err != nil {
+		t.Fatalf("Upsert: %v", err)
+	}
+
+	got, ok, err := store.Get("asura:solo")
+	if err != nil {
+		t.Fatalf("Get: %v", err)
+	}
+	if !ok {
+		t.Fatal("Get ok = false, want true")
+	}
+	if got.Title != "Solo Leveling" || got.LastChapterNum != 45 {
+		t.Fatalf("Get = %+v, want title/chapter preserved", got)
+	}
+}
+
+func TestStoreGetMissing(t *testing.T) {
+	store := newTestStore(t)
+	_, ok, err := store.Get("asura:nope")
+	if err != nil {
+		t.Fatalf("Get missing returned error %v, want nil", err)
+	}
+	if ok {
+		t.Fatal("Get ok = true for missing key, want false")
+	}
+}
+
+func TestBookmarkHasNewChapter(t *testing.T) {
+	num := func(f float64) *float64 { return &f }
+	cases := []struct {
+		name string
+		b    Bookmark
+		want bool
+	}{
+		{"latest ahead", Bookmark{LastChapterNum: 45, LatestChapterNum: num(47)}, true},
+		{"latest equal", Bookmark{LastChapterNum: 45, LatestChapterNum: num(45)}, false},
+		{"latest behind", Bookmark{LastChapterNum: 45, LatestChapterNum: num(44)}, false},
+		{"latest unknown", Bookmark{LastChapterNum: 45}, false},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := tc.b.HasNewChapter(); got != tc.want {
+				t.Fatalf("HasNewChapter() = %v, want %v", got, tc.want)
+			}
+		})
+	}
+}
+
+func TestBookmarkContinueURL(t *testing.T) {
+	cases := []struct {
+		name string
+		b    Bookmark
+		want string
+	}{
+		{"chapter url present", Bookmark{LastChapterURL: "/ch/45", SeriesURL: "/series"}, "/ch/45"},
+		{"falls back to series", Bookmark{SeriesURL: "/series"}, "/series"},
+		{"both empty", Bookmark{}, ""},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := tc.b.ContinueURL(); got != tc.want {
+				t.Fatalf("ContinueURL() = %q, want %q", got, tc.want)
+			}
+		})
+	}
+}