feat(generator): add -default-view to choose timeline or grid as site root

The chosen view is published at /, the other under /timeline/ or /grid/. Page paths, pager links and the cross-links between the views are derived from the setting. The directory named after the default view is removed on build, since it can only be a leftover from before a switch. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-30 08:16:50 +02:00
parent f33bdd55b1
commit f1abd45f24
9 changed files with 208 additions and 38 deletions
@@ -0,0 +1,132 @@
+package main
+
+import (
+	"bytes"
+	"image"
+	"image/jpeg"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+// buildSite builds a site of three photos spread over two days, with a page
+// size of two so both views need a second page, and returns the output dir.
+func buildSite(t *testing.T, output, defaultView string) {
+	t.Helper()
+	content := t.TempDir()
+
+	var img bytes.Buffer
+	if err := jpeg.Encode(&img, image.NewRGBA(image.Rect(0, 0, 8, 8)), nil); err != nil {
+		t.Fatal(err)
+	}
+	for slug, date := range map[string]string{
+		"one":   "2026-06-14",
+		"two":   "2026-06-14",
+		"three": "2026-06-10",
+	} {
+		writeFile(t, filepath.Join(content, slug+".jpg"), img.Bytes())
+		writeFile(t, filepath.Join(content, slug+".toml"),
+			[]byte("caption = \""+slug+"\"\ndate = \""+date+"\"\n"))
+	}
+
+	g := NewGenerator(content, output, "https://photos.example.com",
+		"Ada", "", "", "", "", "Crimson Pro", "Manjari", 2, defaultView)
+	if err := g.Build(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func writeFile(t *testing.T, path string, data []byte) {
+	t.Helper()
+	if err := os.WriteFile(path, data, 0644); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func readPage(t *testing.T, output, rel string) string {
+	t.Helper()
+	data, err := os.ReadFile(filepath.Join(output, filepath.FromSlash(rel), "index.html"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	return string(data)
+}
+
+// Timeline pages carry day sections, grid pages do not.
+func isTimeline(page string) bool {
+	return strings.Contains(page, `class="tl-day"`)
+}
+
+func TestDefaultViewOwnsSiteRoot(t *testing.T) {
+	tests := []struct {
+		defaultView string
+		gridAt      string // URL of the grid's first page
+		timelineAt  string // URL of the timeline's first page
+	}{
+		{viewTimeline, "/grid/", "/"},
+		{viewGrid, "/", "/timeline/"},
+		{"nonsense", "/grid/", "/"}, // unknown values fall back to the timeline
+	}
+	for _, tt := range tests {
+		t.Run(tt.defaultView, func(t *testing.T) {
+			output := t.TempDir()
+			buildSite(t, output, tt.defaultView)
+
+			timeline := readPage(t, output, tt.timelineAt)
+			grid := readPage(t, output, tt.gridAt)
+			if !isTimeline(timeline) {
+				t.Errorf("%s is not the timeline", tt.timelineAt)
+			}
+			if isTimeline(grid) {
+				t.Errorf("%s is not the grid", tt.gridAt)
+			}
+
+			// The views link to each other, and to their own second page.
+			for page, want := range map[string]string{
+				timeline: `href="` + tt.gridAt + `" class="rss-a">Grid`,
+				grid:     `href="` + tt.timelineAt + `" class="rss-a">Timeline`,
+			} {
+				if !strings.Contains(page, want) {
+					t.Errorf("missing link %q", want)
+				}
+			}
+			for first, base := range map[string]string{
+				timeline: strings.TrimSuffix(tt.timelineAt, "/"),
+				grid:     strings.TrimSuffix(tt.gridAt, "/"),
+			} {
+				next := base + "/page/2/"
+				if !strings.Contains(first, `href="`+next+`" data-load-more`) {
+					t.Errorf("first page does not link to %s", next)
+				}
+				second := readPage(t, output, next)
+				if !strings.Contains(second, `class="pager-newer" href="`+base+`/"`) {
+					t.Errorf("%s does not link back to %s/", next, base)
+				}
+			}
+
+			// Day pages lead back to the timeline, wherever it lives.
+			day := readPage(t, output, "/day/2026-06-14/")
+			if !strings.Contains(day, `href="`+tt.timelineAt+`" class="rss-a">← Timeline`) {
+				t.Errorf("day page does not link to the timeline at %s", tt.timelineAt)
+			}
+		})
+	}
+}
+
+func TestSwitchingDefaultViewDropsOldViewDir(t *testing.T) {
+	output := t.TempDir()
+
+	buildSite(t, output, viewTimeline)
+	if _, err := os.Stat(filepath.Join(output, "grid", "index.html")); err != nil {
+		t.Fatalf("grid view missing before the switch: %v", err)
+	}
+
+	buildSite(t, output, viewGrid)
+	if _, err := os.Stat(filepath.Join(output, "grid")); !os.IsNotExist(err) {
+		t.Errorf("stale /grid/ survived the switch to -default-view grid")
+	}
+	if isTimeline(readPage(t, output, "/")) {
+		t.Errorf("site root is still the timeline")
+	}
+}