/**
 * US-007 + US-008: E2E user flow and UI state tests.
 * Simulates real user workflows through the CBPOA system.
 */
import { test, expect } from '@playwright/test';

const BASE_URL = 'http://localhost:3000';

test.describe('认证流程 (Authentication Flow)', () => {
  test('显示登录页面', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(1000);
    // Should see login form or app (if cached token)
    const isLogin = await page.locator('input').count();
    const isApp = await page.locator('nav').count();
    expect(isLogin > 0 || isApp > 0).toBeTruthy();
  });

  test('登录表单可交互', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(1000);

    const inputs = page.locator('input');
    const count = await inputs.count();

    if (count >= 2) {
      // Login page is shown
      await inputs.first().fill('admin');
      await inputs.nth(1).fill('admin123');

      const loginBtn = page.locator('button[type="submit"], button:has-text("登录"), button:has-text("Login")');
      const btnCount = await loginBtn.count();
      if (btnCount > 0) {
        await loginBtn.first().click();
        await page.waitForTimeout(2000);
      }
    }
    // If no inputs, user is already logged in (token in localStorage)
  });
});

test.describe('监测面板 (Monitoring Dashboard)', () => {
  test('面板加载并显示统计卡片', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(3000);

    // Should show monitoring page by default
    const statCards = page.locator('[class*="stat"], [class*="card"], [class*="Stat"]');
    const cardsCount = await statCards.count();

    // Should see some content
    const bodyText = await page.textContent('body');
    expect(bodyText).toBeTruthy();
  });

  test('时间线控件可交互', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(3000);

    // Look for timeline controls
    const playButton = page.locator('button:has-text("播放"), button[title*="play" i], button[class*="play" i]');
    const prevButton = page.locator('button:has-text("前一天"), button[title*="prev" i]');
    const nextButton = page.locator('button:has-text("后一天"), button[title*="next" i]');

    if (await playButton.count() > 0) {
      await playButton.first().click();
      await page.waitForTimeout(1000);
    }
  });

  test('疾病筛选器可用', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(3000);

    const selects = page.locator('select, [role="combobox"], [class*="select" i], [class*="filter" i]');
    const count = await selects.count();
    expect(count >= 0).toBeTruthy();
  });
});

test.describe('预警面板 (Alerts Dashboard)', () => {
  test('导航到预警面板', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    // Navigate to alerts - click sidebar link
    const alertsLink = page.locator('a[href*="alert" i], button:has-text("预警"), button:has-text("告警"), span:has-text("预警"), span:has-text("告警")');
    if (await alertsLink.count() > 0) {
      await alertsLink.first().click();
      await page.waitForTimeout(2000);
    }
  });

  test('预警列表加载', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const alertsLink = page.locator('a[href*="alert" i], button:has-text("预警"), span:has-text("预警")');
    if (await alertsLink.count() > 0) {
      await alertsLink.first().click();
      await page.waitForTimeout(3000);

      const bodyText = await page.textContent('body');
      expect(bodyText).toBeTruthy();
    }
  });
});

test.describe('趋势分析 (Trend Analysis)', () => {
  test('导航到趋势分析页面', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const trendLink = page.locator('button:has-text("趋势"), span:has-text("趋势"), a[href*="trend" i]');
    if (await trendLink.count() > 0) {
      await trendLink.first().click();
      await page.waitForTimeout(2000);
    }
  });

  test('趋势图渲染', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const trendLink = page.locator('button:has-text("趋势"), span:has-text("趋势")');
    if (await trendLink.count() > 0) {
      await trendLink.first().click();
      await page.waitForTimeout(3000);

      // Recharts renders SVG charts
      const svgCharts = page.locator('svg.recharts-surface');
      const chartCount = await svgCharts.count();
      expect(chartCount >= 0).toBeTruthy();
    }
  });
});

test.describe('区县对比 (District Comparison)', () => {
  test('导航到区县对比页面', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const districtLink = page.locator('button:has-text("区县"), button:has-text("对比"), span:has-text("区县")');
    if (await districtLink.count() > 0) {
      await districtLink.first().click();
      await page.waitForTimeout(2000);
    }
  });
});

test.describe('报告中心 (Reports Center)', () => {
  test('导航到报告中心', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const reportsLink = page.locator('button:has-text("报告"), span:has-text("报告"), a[href*="report" i]');
    if (await reportsLink.count() > 0) {
      await reportsLink.first().click();
      await page.waitForTimeout(2000);
    }
  });

  test('报告列表加载', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const reportsLink = page.locator('button:has-text("报告"), span:has-text("报告")');
    if (await reportsLink.count() > 0) {
      await reportsLink.first().click();
      await page.waitForTimeout(3000);

      const bodyText = await page.textContent('body');
      expect(bodyText).toBeTruthy();
    }
  });
});

test.describe('UI 状态与错误处理 (UI States & Error Handling)', () => {
  test('页面加载显示加载指示器而非白屏', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(500);

    const bodyHTML = await page.innerHTML('body');
    // Should have some content, even during loading
    expect(bodyHTML.length).toBeGreaterThan(0);
  });

  test('侧边栏导航切换页面正常', async ({ page }) => {
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const navLinks = page.locator('nav a, nav button, [class*="side" i] a, [class*="side" i] button');
    const count = await navLinks.count();

    if (count >= 2) {
      await navLinks.first().click();
      await page.waitForTimeout(1000);
      await navLinks.nth(1).click();
      await page.waitForTimeout(1000);
    }
  });

  test('未出现明显 console 报错', async ({ page }) => {
    const errors: string[] = [];
    page.on('console', (msg) => {
      if (msg.type() === 'error') {
        errors.push(msg.text());
      }
    });
    page.on('pageerror', (err) => {
      errors.push(err.message);
    });

    await page.goto(BASE_URL);
    await page.waitForTimeout(3000);

    const filtered = errors.filter(
      (e) => !e.includes('favicon') && !e.includes('404') && !e.includes('OLMap')
    );
    expect(filtered).toHaveLength(0);
  });
});

test.describe('响应式布局 (Responsive Layout)', () => {
  test('移动端视口下不崩溃', async ({ page }) => {
    await page.setViewportSize({ width: 375, height: 812 });
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const bodyText = await page.textContent('body');
    expect(bodyText).toBeTruthy();
  });

  test('平板视口下正常显示', async ({ page }) => {
    await page.setViewportSize({ width: 768, height: 1024 });
    await page.goto(BASE_URL);
    await page.waitForTimeout(2000);

    const bodyText = await page.textContent('body');
    expect(bodyText).toBeTruthy();
  });
});