Updated A LOT

server/services/assetClasses.js

@@ -0,0 +1,93 @@
+const { all, audit, now, one, parseJson, run } = require('../db');
+
+const SOURCES = ['common', 'industry', 'business', 'custom'];
+
+// How many asset categories reference a given class number (categories store it in metadata).
+function categoryUsage() {
+  const counts = {};
+  for (const row of all("SELECT metadata FROM reference_values WHERE type = 'category'")) {
+    const num = parseJson(row.metadata, {}).asset_class_number;
+    if (num) counts[num] = (counts[num] || 0) + 1;
+  }
+  return counts;
+}
+
+function fromRow(row, usage) {
+  if (!row) return null;
+  return {
+    id: row.id,
+    class_number: row.class_number,
+    description: row.description,
+    gds: row.gds,
+    ads: row.ads,
+    source: row.source,
+    table: row.source, // back-compat alias used by the category picker
+    category_count: row.class_number ? (usage[row.class_number] || 0) : 0
+  };
+}
+
+function list() {
+  const usage = categoryUsage();
+  return all('SELECT * FROM asset_classes ORDER BY description').map((row) => fromRow(row, usage));
+}
+
+function getClass(id) {
+  return fromRow(one('SELECT * FROM asset_classes WHERE id = ?', [id]), categoryUsage());
+}
+
+function normalize(body) {
+  const num = (value) => {
+    if (value === '' || value === null || value === undefined) return null;
+    const n = Number(value);
+    return Number.isFinite(n) ? n : null;
+  };
+  return {
+    class_number: body.class_number ? String(body.class_number).trim() : null,
+    description: String(body.description || '').trim(),
+    gds: num(body.gds),
+    ads: num(body.ads),
+    source: SOURCES.includes(body.source) ? body.source : 'custom'
+  };
+}
+
+function createClass(body, userId) {
+  const input = normalize(body);
+  if (!input.description) throw Object.assign(new Error('A description is required'), { status: 400 });
+  const ts = now();
+  const result = run(
+    'INSERT INTO asset_classes (class_number, description, gds, ads, source, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?)',
+    [input.class_number, input.description, input.gds, input.ads, input.source, ts, ts]
+  );
+  audit(userId, 'create', 'asset_class', result.lastInsertRowid, null, input);
+  return getClass(result.lastInsertRowid);
+}
+
+function updateClass(id, body, userId) {
+  const before = one('SELECT * FROM asset_classes WHERE id = ?', [id]);
+  if (!before) return null;
+  const input = normalize({ ...before, ...body });
+  if (!input.description) throw Object.assign(new Error('A description is required'), { status: 400 });
+  run(
+    'UPDATE asset_classes SET class_number = ?, description = ?, gds = ?, ads = ?, source = ?, updated_at = ? WHERE id = ?',
+    [input.class_number, input.description, input.gds, input.ads, input.source, now(), id]
+  );
+  audit(userId, 'update', 'asset_class', id, before, input);
+  return getClass(id);
+}
+
+function deleteClass(id, userId) {
+  const before = one('SELECT * FROM asset_classes WHERE id = ?', [id]);
+  if (!before) return false;
+  run('DELETE FROM asset_classes WHERE id = ?', [id]);
+  audit(userId, 'delete', 'asset_class', id, before, null);
+  return true;
+}
+
+module.exports = {
+  SOURCES,
+  createClass,
+  deleteClass,
+  getClass,
+  list,
+  updateClass
+};