Fix local adult metadata and watch history removal

internal/service/adult_scraper_test.go

@@ -0,0 +1,42 @@
+package service
+
+import "testing"
+
+func TestNormalizeAdultCode(t *testing.T) {
+	cases := map[string]string{
+		"SSIS001.mp4":          "SSIS-001",
+		"fc2-ppv-1234567.mkv":  "FC2-PPV-1234567",
+		"heyzo_1234.mp4":       "HEYZO-1234",
+		"120118_001-carib.mp4": "120118-001",
+		"movie.1080p.x264.mkv": "",
+	}
+	for in, want := range cases {
+		if got := normalizeAdultCode(in); got != want {
+			t.Fatalf("normalizeAdultCode(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestParseAdultDetailHTML(t *testing.T) {
+	html := `<html>
+<h2 class="title"><strong>SSIS-001 测试标题</strong></h2>
+<img class="video-cover" src="/covers/ssis001.jpg">
+<a class="sample-box" href="/samples/1.jpg"></a>
+<span class="score"><span class="value">4.7</span></span>
+<div>日期 2024-05-01</div>
+</html>`
+
+	got := parseAdultDetailHTML(html, "SSIS-001", "javdb", "https://javdb.com/v/abc")
+	if got == nil {
+		t.Fatal("parseAdultDetailHTML returned nil")
+	}
+	if got.Title != "测试标题" || got.OriginalName != "SSIS-001" || !got.NSFW {
+		t.Fatalf("unexpected metadata: %+v", got)
+	}
+	if got.PosterURL != "https://javdb.com/covers/ssis001.jpg" || got.BackdropURL != "https://javdb.com/samples/1.jpg" {
+		t.Fatalf("unexpected artwork: %+v", got)
+	}
+	if got.Year != 2024 {
+		t.Fatalf("year = %d, want 2024", got.Year)
+	}
+}