Homelabtoolkit v2

homescreen_editor/lib/genre-cleanup.js

@@ -0,0 +1,54 @@
+function normalizeGenreKey(value) {
+	return String(value || '')
+		.trim()
+		.toLowerCase()
+		.replace(/[^a-z0-9]+/g, '');
+}
+
+export function normalizeGenreNames(values) {
+	const seen = new Set();
+	const names = [];
+
+	for (const value of values || []) {
+		const trimmed = String(value || '').trim();
+		if (!trimmed) continue;
+		const key = normalizeGenreKey(trimmed);
+		if (!key || seen.has(key)) continue;
+		seen.add(key);
+		names.push(trimmed);
+	}
+
+	return names;
+}
+
+export function pickSuggestedGenre(tmdbGenres, currentGenres = []) {
+	const normalizedTmdbGenres = normalizeGenreNames(tmdbGenres);
+	if (!normalizedTmdbGenres.length) return '';
+
+	const currentKeys = new Set(normalizeGenreNames(currentGenres).map(normalizeGenreKey));
+	const matched = normalizedTmdbGenres.find((genre) => currentKeys.has(normalizeGenreKey(genre)));
+
+	return matched || normalizedTmdbGenres[0];
+}
+
+export function buildSingleGenreUpdate(item, genreName) {
+	const selectedGenre = String(genreName || '').trim();
+	if (!selectedGenre) {
+		throw new Error('A genre is required');
+	}
+
+	const nextItem = JSON.parse(JSON.stringify(item || {}));
+	const existingGenreItems = Array.isArray(item?.GenreItems) ? item.GenreItems : [];
+	const matchedGenreItem = existingGenreItems.find(
+		(entry) => normalizeGenreKey(entry?.Name) === normalizeGenreKey(selectedGenre)
+	);
+
+	nextItem.Genres = [selectedGenre];
+	nextItem.GenreItems = [
+		matchedGenreItem
+			? { ...matchedGenreItem, Name: selectedGenre }
+			: { Name: selectedGenre }
+	];
+
+	return nextItem;
+}