/**
 * ================================================================
 * 场景：商品购买支付全流程 E2E 测试
 * ================================================================
 * 用户故事：作为家长，我希望在商城购买孩子的用品，
 *           完成支付后等待商品配送到家。
 *
 * 流程步骤：
 *   1. 家长浏览商品列表，选择商品
 *   2. 家长创建商品订单
 *   3. 家长选择支付方式并完成支付
 *   4. 服务商发货，填写物流信息
 *   5. 家长确认收货，订单完成
 *   6. 如有问题，家长申请退款
 *
 * 关键里程碑：
 *   - [Milestone-1] 订单创建成功，获得订单号
 *   - [Milestone-2] 支付成功，订单状态变更为"已支付"
 *   - [Milestone-3] 服务商发货，订单状态变更为"已发货"
 *   - [Milestone-4] 家长确认收货，订单完成
 *   - [Milestone-5] 退款申请提交成功
 * ================================================================
 *
 * 运行：npx playwright test tests/e2e/product-purchase.spec.js
 */

const { test, expect } = require('@playwright/test');

test.describe('【场景流程】商品购买支付全流程', () => {

  // ===== 场景1：创建商品订单 =====

  /**
   * 场景：家长选购商品后创建订单
   * 角色：家长
   * 触发条件：点击"立即购买"或"加入购物车结算"
   */
  test('[场景1] 创建商品订单 - 期望订单创建成功', async ({ page }) => {
    // ========== Given：进入商品详情页 ==========
    await page.goto('/#/pages/shop/product/1');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：选择数量 ==========
    const quantityInput = page.locator('.quantity-input, input[name="quantity"]');
    if (await quantityInput.isVisible()) {
      await quantityInput.fill('1');
    } else {
      // 尝试点击增加按钮
      const increaseBtn = page.locator('.increase-btn, .btn-increase');
      if (await increaseBtn.isVisible()) {
        await increaseBtn.click();
      }
    }

    // ========== Step 2：选择收货地址 ==========
    const addressPicker = page.locator('.address-picker, .select-address');
    if (await addressPicker.isVisible()) {
      await addressPicker.click();
      await page.waitForSelector('.address-option, .address-item', { timeout: 5000 });
      await page.click('.address-option:first-child, .address-item:first-child');
    }

    // ========== When：点击立即购买 ==========
    await page.click('.buy-now-btn, .purchase-btn');

    // ========== Then：Milestone-1 - 订单创建成功 ========
    await page.waitForSelector('.order-created, .order-success, .order-no', { timeout: 10000 });

    // 验证订单号显示
    const orderNo = page.locator('.order-no, .order-number');
    expect(await orderNo.isVisible()).toBeTruthy();

    const orderNoText = await orderNo.textContent();
    expect(orderNoText).toMatch(/ORD|PRD|\d+/);
  });

  // ===== 场景2：支付订单 =====

  /**
   * 场景：家长选择微信支付完成订单支付
   * 角色：家长
   * 触发条件：点击"去支付"并选择支付方式
   */
  test('[场景2] 支付商品订单 - 期望支付成功', async ({ page }) => {
    // ========== Given：进入订单支付页面 ==========
    await page.goto('/#/pages/shop/pay?orderNo=ORD20260628001');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：选择支付方式 ==========
    const wechatPayOption = page.locator('.pay-method:has-text("微信支付"), .wechat-pay');
    if (await wechatPayOption.isVisible()) {
      await wechatPayOption.click();
    }

    // ========== When：确认支付 ==========
    await page.click('.confirm-pay-btn, .pay-now-btn');

    // ========== Then：Milestone-2 - 支付成功 ========
    await page.waitForSelector('.pay-success, .payment-success, .success-tip', { timeout: 30000 });

    // 验证支付成功提示
    const successTip = page.locator('.pay-success, .payment-success');
    expect(await successTip.isVisible()).toBeTruthy();
  });

  // ===== 场景3：服务商发货 =====

  /**
   * 场景：服务商收到订单后发货，填写物流信息
   * 角色：服务商/供应商
   * 触发条件：商家点击"发货"并填写物流单号
   */
  test('[场景3] 服务商发货 - 期望订单状态更新为已发货', async ({ page }) => {
    // ========== Given：进入商家订单管理 ==========
    await page.goto('/#/pages/vendor/orders');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：找到待发货订单 ==========
    await page.waitForSelector('.order-item', { timeout: 10000 });
    const paidOrder = page.locator('.order-item:has-text("已支付"), .order-item:has-text("待发货")').first();
    await paidOrder.click();

    // ========== Step 2：点击发货按钮 ==========
    await page.waitForSelector('.ship-btn, .deliver-btn', { timeout: 5000 });
    await page.click('.ship-btn');

    // ========== Step 3：填写物流信息 ==========
    await page.waitForSelector('.express-company, .tracking-company', { timeout: 5000 });

    // 选择快递公司
    const companyPicker = page.locator('.express-company, .tracking-company');
    if (await companyPicker.isVisible()) {
      await companyPicker.click();
      await page.waitForSelector('.company-option', { timeout: 5000 });
      await page.click('.company-option:first-child');
    }

    // 输入运单号
    const trackingInput = page.locator('input[name="trackingNumber"], .tracking-input');
    if (await trackingInput.isVisible()) {
      await trackingInput.fill('SF' + Date.now());
    }

    // ========== When：确认发货 ==========
    await page.click('.confirm-ship-btn, .submit-btn');

    // ========== Then：Milestone-3 - 发货成功 ========
    await page.waitForSelector('.ship-success, .shipped', { timeout: 10000 });

    // 验证订单状态变更为"已发货"
    const orderStatus = page.locator('.order-status, .status-tag');
    if (await orderStatus.isVisible()) {
      const statusText = await orderStatus.textContent();
      expect(statusText).toMatch(/已发货|待收货/);
    }

    // 验证运单号显示
    const trackingNo = page.locator('.tracking-number, .tracking-no');
    if (await trackingNo.isVisible()) {
      const trackingText = await trackingNo.textContent();
      expect(trackingText).toMatch(/SF|\d{10,}/);
    }
  });

  // ===== 场景4：家长确认收货 =====

  /**
   * 场景：家长收到商品后确认收货
   * 角色：家长
   * 触发条件：确认收到商品无误
   */
  test('[场景4] 家长确认收货 - 期望订单完成', async ({ page }) => {
    // ========== Given：进入待收货订单 ==========
    await page.goto('/#/pages/shop/orders?to=received');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：找到待收货订单 ==========
    await page.waitForSelector('.order-item', { timeout: 10000 });
    const shippedOrder = page.locator('.order-item:has-text("已发货"), .order-item:has-text("待收货")').first();
    await shippedOrder.click();

    // ========== When：点击确认收货 ==========
    await page.waitForSelector('.confirm-receive-btn, .receive-btn', { timeout: 5000 });
    await page.click('.confirm-receive-btn, .receive-btn');

    // ========== Then：Milestone-4 - 订单完成 ========
    await page.waitForSelector('.receive-success, .completed', { timeout: 10000 });

    // 验证订单状态变更为"已完成"
    const orderStatus = page.locator('.order-status, .status-tag');
    if (await orderStatus.isVisible()) {
      const statusText = await orderStatus.textContent();
      expect(statusText).toMatch(/已完成|已收货/);
    }
  });

  // ===== 场景5：申请退款 =====

  /**
   * 场景：家长发现问题，申请退款
   * 角色：家长
   * 触发条件：点击"申请退款"并填写原因
   */
  test('[场景5] 申请退款 - 期望退款申请提交成功', async ({ page }) => {
    // ========== Given：进入订单详情 ==========
    await page.goto('/#/pages/shop/order-detail?orderNo=ORD20260628002');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：点击申请退款 ==========
    await page.waitForSelector('.refund-btn, .apply-refund-btn', { timeout: 10000 });
    await page.click('.refund-btn');

    // ========== Step 2：填写退款原因 ==========
    await page.waitForSelector('.refund-reason-input, .reason-textarea', { timeout: 5000 });
    const reasonInput = page.locator('.refund-reason-input textarea, .reason-textarea');
    if (await reasonInput.isVisible()) {
      await reasonInput.fill('商品与描述不符，收到后发现质量问题');
    }

    // ========== When：提交退款申请 ==========
    await page.click('.submit-refund-btn, .confirm-refund-btn');

    // ========== Then：Milestone-5 - 退款申请成功 ========
    await page.waitForSelector('.refund-submitted, .refund-success', { timeout: 10000 });

    // 验证退款状态
    const refundStatus = page.locator('.refund-status, .status-tag');
    if (await refundStatus.isVisible()) {
      const statusText = await refundStatus.textContent();
      expect(statusText).toMatch(/退款|审核中/);
    }
  });

  // ===== 场景6：取消未支付订单 =====

  /**
   * 场景：家长改变主意，取消未支付的订单
   * 角色：家长
   * 触发条件：点击"取消订单"
   */
  test('[场景6] 取消未支付订单 - 期望订单关闭', async ({ page }) => {
    // ========== Given：进入我的订单 ==========
    await page.goto('/#/pages/shop/orders');
    await page.waitForLoadState('networkidle');

    // ========== Step 1：找到待支付订单 ==========
    await page.waitForSelector('.order-item', { timeout: 10000 });
    const pendingOrder = page.locator('.order-item:has-text("待支付"), .order-item:has-text("待付款")').first();

    // 点击进入订单详情
    await pendingOrder.click();

    // ========== Step 2：点击取消订单 ==========
    await page.waitForSelector('.cancel-order-btn', { timeout: 5000 });
    await page.click('.cancel-order-btn');

    // 确认取消
    await page.waitForSelector('.confirm-dialog, .van-dialog', { timeout: 5000 });
    await page.click('.confirm-dialog .van-button--primary, .confirm-cancel');

    // ========== Then：订单关闭 ========
    await page.waitForSelector('.cancel-success, .order-closed', { timeout: 10000 });

    const orderStatus = page.locator('.order-status, .status-tag');
    if (await orderStatus.isVisible()) {
      const statusText = await orderStatus.textContent();
      expect(statusText).toMatch(/已取消|已关闭/);
    }
  });

  // ===== 场景7：查看我的订单列表 =====

  /**
   * 场景：家长查看自己的订单列表
   * 角色：家长
   * 触发条件：进入"我的订单"页面
   */
  test('[场景7] 查看我的订单列表 - 期望返回订单列表', async ({ page }) => {
    // ========== Given：进入我的订单页面 ==========
    await page.goto('/#/pages/shop/orders');
    await page.waitForLoadState('networkidle');

    // ========== When：查看订单列表 ==========
    await page.waitForSelector('.order-item', { timeout: 10000 });

    // ========== Then：返回订单列表 ========
    const orderItems = page.locator('.order-item');
    const count = await orderItems.count();
    expect(count).toBeGreaterThan(0);

    // 验证订单状态显示
    const firstOrder = orderItems.first();
    const statusTag = firstOrder.locator('.status-tag, .order-status');
    expect(await statusTag.isVisible()).toBeTruthy();
  });

  // ===== 场景8：查看订单详情 =====

  /**
   * 场景：家长查看具体订单的详细信息
   * 角色：家长
   * 触发条件：点击某个订单查看详情
   */
  test('[场景8] 查看订单详情 - 期望返回完整订单信息', async ({ page }) => {
    // ========== Given：进入订单详情 ==========
    await page.goto('/#/pages/shop/order-detail?orderNo=ORD20260628001');
    await page.waitForLoadState('networkidle');

    // ========== When：查看订单详情 ==========
    await page.waitForSelector('.order-detail, .detail-container', { timeout: 10000 });

    // ========== Then：返回完整订单信息 ========
    // 验证订单号显示
    const orderNo = page.locator('.order-no, .order-number');
    expect(await orderNo.isVisible()).toBeTruthy();

    // 验证商品信息显示
    const productInfo = page.locator('.product-info, .product-name');
    expect(await productInfo.isVisible()).toBeTruthy();

    // 验证金额显示
    const amountInfo = page.locator('.total-amount, .order-amount');
    expect(await amountInfo.isVisible()).toBeTruthy();

    // 验证物流信息（如果有）
    const logisticsInfo = page.locator('.logistics-info, .tracking-info');
    // 物流信息可能不显示（未发货时），但不应该报错
  });

  // ===== 场景9：完整商品购买流程（端到端）=====

  test('[场景9] 完整商品购买流程 - 期望全流程成功', async ({ page }) => {
    // ========== Step 1：浏览商品 ==========
    await page.goto('/#/pages/shop/list');
    await page.waitForLoadState('networkidle');
    await page.waitForSelector('.product-item', { timeout: 10000 });

    // 点击第一个商品
    await page.locator('.product-item').first().click();
    await page.waitForLoadState('networkidle');

    // ========== Step 2：创建订单 ==========
    const buyBtn = page.locator('.buy-now-btn, .purchase-btn');
    if (await buyBtn.isVisible()) {
      await buyBtn.click();
      await page.waitForSelector('.order-no, .order-created', { timeout: 10000 });
    }

    // 获取订单号
    let orderNo = '';
    const orderNoEl = page.locator('.order-no');
    if (await orderNoEl.isVisible()) {
      orderNo = await orderNoEl.textContent();
    }

    // ========== Step 3：支付订单 ==========
    const payBtn = page.locator('.go-pay-btn, .pay-now-btn');
    if (await payBtn.isVisible()) {
      await payBtn.click();

      // 选择微信支付
      const wechatPay = page.locator('.pay-method:has-text("微信")');
      if (await wechatPay.isVisible()) {
        await wechatPay.click();
      }

      await page.click('.confirm-pay-btn');
      await page.waitForSelector('.pay-success, .payment-success', { timeout: 30000 });
    }

    // ========== Step 4：查看我的订单 ==========
    await page.goto('/#/pages/shop/orders');
    await page.waitForLoadState('networkidle');
    await page.waitForSelector('.order-item', { timeout: 10000 });

    // 验证订单存在
    const orderItems = page.locator('.order-item');
    const count = await orderItems.count();
    expect(count).toBeGreaterThan(0);

    // 如果有已发货的订单，确认收货
    const shippedOrder = page.locator('.order-item:has-text("已发货")').first();
    if (await shippedOrder.isVisible()) {
      await shippedOrder.click();
      const receiveBtn = page.locator('.confirm-receive-btn');
      if (await receiveBtn.isVisible()) {
        await receiveBtn.click();
        await page.waitForSelector('.receive-success', { timeout: 10000 });
      }
    }
  });

});