feat(watchlist): note parsing (frontmatter, My Notes, tmdb ref)

packages/obsidian/src/watchlist/parse.ts

@@ -0,0 +1,36 @@
+export interface ParsedNote {
+	frontmatter: Record<string, string>;
+	body: string;
+}
+
+export function parseNote(content: string): ParsedNote {
+	const m = /^---\n([\s\S]*?)\n---([\s\S]*)$/.exec(content);
+	const frontmatter: Record<string, string> = {};
+	let body = content;
+	if (m) {
+		body = m[2];
+		for (const line of m[1].split('\n')) {
+			const mm = /^([A-Za-z0-9_]+):\s*(.*)$/.exec(line);
+			if (mm) frontmatter[mm[1]] = mm[2].trim();
+		}
+	}
+	return { frontmatter, body };
+}
+
+export function extractMyNotes(body: string): string {
+	const m = /##\s*My Notes\s*([\s\S]*)$/.exec(body ?? '');
+	return m ? m[1].trim() : '';
+}
+
+function stripQuotes(s: string | undefined): string {
+	return (s ?? '').trim().replace(/^"|"$/g, '');
+}
+
+export function noteTmdbRef(fm: Record<string, string>): { tmdbId: string; isMovie: boolean } | null {
+	const tid = stripQuotes(fm['tmdb_id']);
+	if (tid) return { tmdbId: tid, isMovie: stripQuotes(fm['media_type']) === 'Movie' };
+	const rawId = stripQuotes(fm['id']);
+	const ds = (fm['dataSource'] ?? '').trim();
+	if (rawId && ds.startsWith('TMDB')) return { tmdbId: rawId, isMovie: ds.includes('Movie') };
+	return null;
+}