/**
 * v0.7.1 硬化回归测试
 *
 * 覆盖：
 * - MetonaSqlark.create 静态工厂（README 示例 API 修复）
 * - close 未初始化防护（不再 TypeError）
 * - AriaEngine 未 open 防护统一（hasTable/getTableNames/getTableSchema）
 * - 事务回滚失败不掩盖原始错误
 * - '__proto__' 列名拒绝（原型污染防护）
 */

import { MetonaSqlark } from '../src/core';
import { create } from '../src/index';
import { AriaEngine } from '../src/engine/aria/index';
import { MemoryEngine } from '../src/engine/memory';
import { TransactionManager } from '../src/transaction/index';
import { createSchema } from '../src/table/schema';

function uniqueDB(): string {
  return `v071-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
}

describe('v0.7.1 — MetonaSqlark.create 静态工厂', () => {
  it('类静态 create 可用（与 api create 行为一致）', async () => {
    const db = await MetonaSqlark.create({ name: uniqueDB(), mode: 'memory' });
    expect(db.isReady()).toBe(true);
    await db.defineTable('t', { id: { type: 'string', primaryKey: true } });
    await db.query('INSERT INTO t VALUES (\'1\')');
    const rows = await db.query('SELECT * FROM t') as Record<string, unknown>[];
    expect(rows).toHaveLength(1);
    await db.close();
  });

  it('独立 create 函数仍可用', async () => {
    const db = await create({ name: uniqueDB(), mode: 'memory' });
    expect(db.isReady()).toBe(true);
    await db.close();
  });

  it('init 前 close 不崩溃', async () => {
    const db = new MetonaSqlark({ name: uniqueDB(), mode: 'memory' });
    await expect(db.close()).resolves.toBeUndefined();
    expect(db.isReady()).toBe(false);
  });
});

describe('v0.7.1 — AriaEngine 未 open 防护统一', () => {
  it('close 后 getTableNames/hasTable/getTableSchema 抛 DB_NOT_OPEN', async () => {
    const eng = new AriaEngine({ storageBackend: 'memory' });
    await eng.open(uniqueDB(), 1);
    await eng.close();
    await expect(eng.getTableNames()).rejects.toMatchObject({ code: 'DB_NOT_OPEN' });
    await expect(eng.hasTable('t')).rejects.toMatchObject({ code: 'DB_NOT_OPEN' });
    await expect(eng.getTableSchema('t')).rejects.toMatchObject({ code: 'DB_NOT_OPEN' });
  });

  it('open 后正常返回（行为不变）', async () => {
    const eng = new AriaEngine({ storageBackend: 'memory' });
    await eng.open(uniqueDB(), 1);
    expect(await eng.getTableNames()).toEqual([]);
    expect(await eng.hasTable('t')).toBe(false);
    expect(await eng.getTableSchema('t')).toBeNull();
    await eng.close();
  });
});

describe('v0.7.1 — 事务回滚失败不掩盖原始错误', () => {
  class RollbackFailsEngine extends MemoryEngine {
    async rollbackTransaction(): Promise<void> {
      throw new Error('rollback boom');
    }
    async beginTransaction(): Promise<void> { /* ok */ }
    async commitTransaction(): Promise<void> { /* ok */ }
  }

  it('事务体抛错 + 回滚失败 → 抛原始事务错误', async () => {
    const eng = new RollbackFailsEngine();
    const mgr = new TransactionManager(eng);
    await expect(mgr.execute(async () => {
      throw new Error('original tx failure');
    })).rejects.toThrow('original tx failure');
  });
});

describe('v0.7.1 — __proto__ 列名拒绝', () => {
  it('动态构造列映射（null 原型）含 __proto__ 列名被拒绝', () => {
    // 对象字面量的 `__proto__:` 在字面量层就触发原型 setter（键不存在）；
    // 真实攻击面是动态构造的列映射（SQL 路径 / Object.create(null)）——键可被
    // Object.entries 看到，校验层必须拒绝
    const cols: Record<string, unknown> = Object.create(null) as Record<string, unknown>;
    cols.id = { type: 'string', primaryKey: true };
    cols.__proto__ = { type: 'string' };
    expect(() => createSchema('t', cols as never)).toThrow('"__proto__"');
  });

  it('SQL CREATE TABLE 拒绝 __proto__ 列名（列不静默丢失）', async () => {
    const db = await MetonaSqlark.create({ name: uniqueDB(), mode: 'memory' });
    await expect(db.query('CREATE TABLE t (id STRING PRIMARY KEY, __proto__ STRING)'))
      .rejects.toMatchObject({ code: 'SCHEMA_ERROR' });
    await db.close();
  });
});