Add catalog search on timeline header and fix Back to Timeline navigation.

Public GET /api/search over artists, movements, and paintings with a debounced header bar on the timeline; Back to Timeline resets zoom and gallery session.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/search-service.js

@@ -0,0 +1,135 @@
+const pool = require('./db');
+
+const VALID_TYPES = new Set(['artist', 'painting', 'movement']);
+
+function parseTypes(typesParam) {
+  if (!typesParam || typeof typesParam !== 'string') {
+    return ['artist', 'movement', 'painting'];
+  }
+  const parsed = typesParam
+    .split(',')
+    .map((t) => t.trim().toLowerCase())
+    .filter((t) => VALID_TYPES.has(t));
+  return parsed.length > 0 ? parsed : ['artist', 'movement', 'painting'];
+}
+
+async function searchArtists(pattern, prefixPattern, perTypeLimit) {
+  const { rows } = await pool.query(
+    `SELECT a.id, a.name, a.birth_year, a.death_year,
+            a.portrait_path, a.portrait_thumb_path,
+            m.name AS movement_name,
+            CASE WHEN a.name ILIKE $2 THEN 0 ELSE 1 END AS rank
+     FROM artists a
+     LEFT JOIN art_movements m ON a.movement_id = m.id
+     WHERE a.name ILIKE $1
+        OR a.wikipedia_title ILIKE $1
+        OR m.name ILIKE $1
+     ORDER BY rank, a.name
+     LIMIT $3`,
+    [pattern, prefixPattern, perTypeLimit]
+  );
+  return rows.map((row) => ({
+    type: 'artist',
+    id: row.id,
+    name: row.name,
+    birth_year: row.birth_year,
+    death_year: row.death_year,
+    movement_name: row.movement_name,
+    portrait_path: row.portrait_path,
+    portrait_thumb_path: row.portrait_thumb_path,
+    rank: row.rank,
+  }));
+}
+
+async function searchMovements(pattern, prefixPattern, perTypeLimit) {
+  const { rows } = await pool.query(
+    `SELECT m.id, m.name, m.color, m.start_year, m.end_year,
+            e.name AS era_name,
+            CASE WHEN m.name ILIKE $2 THEN 0 ELSE 1 END AS rank
+     FROM art_movements m
+     LEFT JOIN historical_eras e ON m.era_id = e.id
+     WHERE m.name ILIKE $1
+        OR e.name ILIKE $1
+     ORDER BY rank, m.name
+     LIMIT $3`,
+    [pattern, prefixPattern, perTypeLimit]
+  );
+  return rows.map((row) => ({
+    type: 'movement',
+    id: row.id,
+    name: row.name,
+    color: row.color,
+    start_year: row.start_year,
+    end_year: row.end_year,
+    era_name: row.era_name,
+    rank: row.rank,
+  }));
+}
+
+async function searchPaintings(pattern, prefixPattern, perTypeLimit) {
+  const { rows } = await pool.query(
+    `SELECT p.id, p.title, p.year, p.thumbnail_path, p.image_path,
+            a.id AS artist_id, a.name AS artist_name,
+            m.name AS movement_name,
+            CASE WHEN p.title ILIKE $2 THEN 0 ELSE 1 END AS rank
+     FROM paintings p
+     JOIN artists a ON p.artist_id = a.id
+     LEFT JOIN art_movements m ON a.movement_id = m.id
+     WHERE p.title ILIKE $1
+        OR p.wikipedia_title ILIKE $1
+        OR a.name ILIKE $1
+        OR m.name ILIKE $1
+        OR CAST(p.year AS TEXT) ILIKE $1
+     ORDER BY rank, p.year NULLS LAST, p.title
+     LIMIT $3`,
+    [pattern, prefixPattern, perTypeLimit]
+  );
+  return rows.map((row) => ({
+    type: 'painting',
+    id: row.id,
+    title: row.title,
+    year: row.year,
+    artist_id: row.artist_id,
+    artist_name: row.artist_name,
+    movement_name: row.movement_name,
+    thumbnail_path: row.thumbnail_path,
+    image_path: row.image_path,
+    rank: row.rank,
+  }));
+}
+
+async function searchCatalog(query, options = {}) {
+  const q = String(query || '').trim();
+  if (q.length < 2) {
+    return { q, results: [] };
+  }
+
+  const limit = Math.min(50, Math.max(1, Number(options.limit) || 20));
+  const types = parseTypes(options.types);
+  const perTypeLimit = Math.max(1, Math.ceil(limit / types.length));
+  const pattern = `%${q}%`;
+  const prefixPattern = `${q}%`;
+
+  const tasks = [];
+  if (types.includes('artist')) tasks.push(searchArtists(pattern, prefixPattern, perTypeLimit));
+  if (types.includes('movement')) tasks.push(searchMovements(pattern, prefixPattern, perTypeLimit));
+  if (types.includes('painting')) tasks.push(searchPaintings(pattern, prefixPattern, perTypeLimit));
+
+  const groups = await Promise.all(tasks);
+  const merged = groups
+    .flat()
+    .sort((a, b) => {
+      if (a.rank !== b.rank) return a.rank - b.rank;
+      const typeOrder = { artist: 0, movement: 1, painting: 2 };
+      if (typeOrder[a.type] !== typeOrder[b.type]) return typeOrder[a.type] - typeOrder[b.type];
+      const labelA = a.type === 'painting' ? a.title : a.name;
+      const labelB = b.type === 'painting' ? b.title : b.name;
+      return String(labelA).localeCompare(String(labelB));
+    })
+    .slice(0, limit)
+    .map(({ rank: _rank, ...rest }) => rest);
+
+  return { q, results: merged };
+}
+
+module.exports = { searchCatalog };