/**
 * v0.5.1 — CRUD 生命周期钩子真实接线测试
 *
 * 此前 beforeInsert/afterInsert/beforeUpdate/afterUpdate/beforeDelete/afterDelete
 * 六个钩子虽在 HookName 类型与文档中宣称（"14 种钩子"），但从未被任何路径触发。
 * 本次验证 Table API 与 SQL query 两条路径均真实触发全部 14 个钩子。
 */
import { MetonaSqlark } from '../src/core';
import 'fake-indexeddb/auto';

async function createDb(name: string): Promise<MetonaSqlark> {
  const db = new MetonaSqlark({ name: `hooks-${name}-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`, mode: 'memory' });
  await db.init();
  await db.defineTable('users', {
    id: { type: 'string', primaryKey: true },
    name: { type: 'string' },
    age: { type: 'number' },
  });
  return db;
}

describe('v0.5.1 — CRUD hooks 真实接线', () => {
  it('Table.insert / insertMany 触发 beforeInsert + afterInsert', async () => {
    const db = await createDb('table-insert');
    const events: string[] = [];
    db.on('beforeInsert', (rows) => { events.push(`before:${(rows as unknown[]).length}`); });
    db.on('afterInsert', (rows, pks) => { events.push(`after:${(rows as unknown[]).length}:${(pks as string[]).length}`); });

    await db.table('users').insert({ id: '1', name: 'A' });
    await db.table('users').insertMany([{ id: '2', name: 'B' }, { id: '3', name: 'C' }]);

    expect(events).toEqual([
      'before:1', 'after:1:1',
      'before:2', 'after:2:2',
    ]);
    await db.close();
  });

  it('Table.update().execute() 触发 beforeUpdate + afterUpdate（含影响行数）', async () => {
    const db = await createDb('table-update');
    await db.table('users').insertMany([{ id: '1', name: 'A', age: 1 }, { id: '2', name: 'B', age: 2 }]);
    const events: string[] = [];
    db.on('beforeUpdate', (query, updates) => { events.push(`before:${(updates as Record<string, unknown>).name}`); });
    db.on('afterUpdate', (_query, _updates, count) => { events.push(`after:${count}`); });

    await db.table('users').update({ name: 'X' }).where({ age: { $gt: 1 } }).execute();

    expect(events).toEqual(['before:X', 'after:1']);
    await db.close();
  });

  it('Table.delete().execute() 触发 beforeDelete + afterDelete（含影响行数）', async () => {
    const db = await createDb('table-delete');
    await db.table('users').insertMany([{ id: '1', name: 'A' }, { id: '2', name: 'B' }]);
    const events: string[] = [];
    db.on('beforeDelete', (query) => { events.push(`before:${(query as { where: Record<string, unknown> }).where.id}`); });
    db.on('afterDelete', (_query, count) => { events.push(`after:${count}`); });

    await db.table('users').delete().where({ id: '1' }).execute();

    expect(events).toEqual(['before:1', 'after:1']);
    await db.close();
  });

  it('SQL query 路径触发全部 CRUD hooks（INSERT/UPDATE/DELETE）', async () => {
    const db = await createDb('sql-crud');
    await db.query("INSERT INTO users VALUES ('1', 'Alice', 30)");
    const events: string[] = [];
    db.on('beforeInsert', () => events.push('beforeInsert'));
    db.on('afterInsert', () => events.push('afterInsert'));
    db.on('beforeUpdate', () => events.push('beforeUpdate'));
    db.on('afterUpdate', () => events.push('afterUpdate'));
    db.on('beforeDelete', () => events.push('beforeDelete'));
    db.on('afterDelete', () => events.push('afterDelete'));

    await db.query("INSERT INTO users VALUES ('2', 'Bob', 25)");
    await db.query("UPDATE users SET age = 26 WHERE id = '2'");
    await db.query("DELETE FROM users WHERE id = '1'");

    expect(events).toEqual([
      'beforeInsert', 'afterInsert',
      'beforeUpdate', 'afterUpdate',
      'beforeDelete', 'afterDelete',
    ]);
    await db.close();
  });

  it('SQL INSERT 多行语句按列名映射触发 afterInsert', async () => {
    const db = await createDb('sql-insert-cols');
    const seen: unknown[] = [];
    db.on('afterInsert', (_rows, pks) => seen.push(pks));

    await db.query("INSERT INTO users (id, name) VALUES ('9', 'Zed')");

    expect(seen).toEqual([['9']]);
    await db.close();
  });

  it('全部 14 个钩子均可注册并真实触发', async () => {
    const db = await createDb('all-hooks');
    const fired = new Set<string>();
    const hooks = [
      'beforeCreateTable', 'afterCreateTable',
      'beforeDropTable', 'afterDropTable',
      'beforeInsert', 'afterInsert',
      'beforeUpdate', 'afterUpdate',
      'beforeDelete', 'afterDelete',
      'beforeQuery', 'afterQuery',
      'beforeTransaction', 'afterTransaction',
    ] as const;
    for (const h of hooks) db.on(h, () => fired.add(h));

    await db.defineTable('t2', { id: { type: 'string', primaryKey: true } }); // createTable hooks
    await db.table('t2').insert({ id: '1' });                                  // insert hooks
    await db.table('t2').update({}).where({ id: '1' }).execute();              // update hooks
    await db.table('t2').delete().where({ id: '1' }).execute();                // delete hooks
    await db.query('SELECT * FROM t2');                                        // query hooks
    await db.transaction(async () => { /* noop */ });                          // transaction hooks
    await db.dropTable('t2');                                                  // dropTable hooks

    for (const h of hooks) {
      expect(fired.has(h)).toBe(true);
      if (!fired.has(h)) throw new Error(`hook ${h} 应被触发`);
    }
    await db.close();
  });

  it('事务路径不触发 CRUD hooks（Table 无 hooks 回调）', async () => {
    const db = await createDb('tx-hooks');
    let fired = false;
    db.on('beforeInsert', () => { fired = true; });

    await db.transaction(async (trx) => {
      await trx.table('users').insert({ id: '1', name: 'Tx' });
    });

    expect(fired).toBe(false);
    await db.close();
  });
});