Files
MixedAssets/server/services/assetClasses.js

108 lines
4.1 KiB
JavaScript

const { all, audit, now, one, parseJson, run } = require('../db');
const SOURCES = ['common', 'industry', 'business', 'custom'];
// How many asset categories reference a class. Categories link by unique asset_class_id; older
// records that only stored asset_class_number fall back to matching on the (non-unique) number.
function categoryUsage() {
const byId = {};
const byNumber = {};
for (const row of all("SELECT metadata FROM reference_values WHERE type = 'category'")) {
const meta = parseJson(row.metadata, {});
if (meta.asset_class_id) byId[meta.asset_class_id] = (byId[meta.asset_class_id] || 0) + 1;
else if (meta.asset_class_number) byNumber[meta.asset_class_number] = (byNumber[meta.asset_class_number] || 0) + 1;
}
// Class numbers are not unique (e.g. 00.12 is shared by Computers, Casinos, and a dozen others). A
// category that only stored a number can't be pinned to one class, so the number fallback is only
// safe when exactly one class carries that number — otherwise it would falsely flag every sharing
// class as "assigned."
const numberOwners = {};
for (const row of all('SELECT class_number FROM asset_classes WHERE class_number IS NOT NULL')) {
numberOwners[row.class_number] = (numberOwners[row.class_number] || 0) + 1;
}
return { byId, byNumber, numberOwners };
}
function fromRow(row, usage) {
if (!row) return null;
const idCount = usage.byId[row.id] || 0;
const uniqueNumber = row.class_number && usage.numberOwners[row.class_number] === 1;
const numberCount = uniqueNumber ? (usage.byNumber[row.class_number] || 0) : 0;
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: idCount + numberCount
};
}
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
};