// 元素截图：截取登录/注册卡片、各功能弹窗与账单解析预览，写入 public/screenshots/elements/。
import { resolve } from 'node:path'
import { pathToFileURL } from 'node:url'
import type { Page } from 'playwright-core'
import { clickText, injectSession, launchBrowser, login, newContext, waitPage } from './browser.js'
import { BASE_URL, ELEM_DIR, SAMPLE_BILL, SAMPLE_IMAGE, SAMPLE_IMAGE2 } from './config.js'

/** 页面就绪标志：列表页表格、设置面板或卡片 */
const PAGE_READY = '.n-data-table, .config-card, .n-card'

/** 未登录状态下的卡片截图：文件名、路由、CSS 选择器 */
const CARD_SCENES: Array<[string, string, string]> = [
  ['login-card', '/login', '.login-container .n-card'],
  ['register-card', '/register', '.login-container .n-card'],
]

/** 弹窗截图：文件名、路由、触发按钮文本 */
const MODAL_SCENES: Array<[string, string, string]> = [
  ['add-record', '/transactions', '新增记录'],
  ['batch-set', '/transactions', '一键设置'],
  ['import-bill', '/transactions', '导入账单'],
  ['ai-record', '/transactions', '智能记账'],
  ['ai-search', '/dashboard', 'AI 搜索'],
  ['add-category', '/categories', '新增分类'],
  ['add-tag', '/tags', '新增标签'],
  ['add-rule', '/rules', '新增规则'],
  ['add-email-config', '/email-bills/configs', '新增'],
  ['add-channel', '/settings', '添加渠道'],
  ['channel-create', '/channels', '新建渠道'],
]

/**
 * 截取登录/注册卡片（未登录状态）。
 *
 * @param page Page 实例
 */
export async function captureCards(page: Page): Promise<void> {
  for (const [name, path, selector] of CARD_SCENES) {
    try {
      await page.setViewportSize({ width: 1440, height: 900 })
      await page.goto(BASE_URL + path)
      await waitPage(page, { selector: PAGE_READY })
      // 未登录状态默认语言可能为英文，先切换为中文再刷新
      await page.evaluate(() => localStorage.setItem('locale', 'zh-CN'))
      await page.reload()
      await waitPage(page, { selector, settle: 800 })
      const card = page.locator(selector).first()
      await card.waitFor({ state: 'visible', timeout: 20000 })
      await card.screenshot({ path: resolve(ELEM_DIR, `${name}.png`) })
      console.log(`[OK] ${name}`)
    } catch (err) {
      console.log(`[FAIL] ${name}: ${err}`)
    }
  }
}

/**
 * 截取各功能弹窗。
 *
 * @param page Page 实例
 */
export async function captureModals(page: Page): Promise<void> {
  for (const [name, path, button] of MODAL_SCENES) {
    try {
      await page.setViewportSize({ width: 1440, height: 1000 })
      await page.goto(BASE_URL + path)
      await waitPage(page, { selector: PAGE_READY })
      if (!(await clickText(page, button))) throw new Error(`未找到按钮：${button}`)
      const modal = page.locator('.n-modal').first()
      try {
        await modal.waitFor({ state: 'visible', timeout: 8000 })
      } catch {
        // 首次点击可能未生效（页面状态未就绪），重试一次
        await clickText(page, button)
        await modal.waitFor({ state: 'visible', timeout: 15000 })
      }
      // 弹窗内的数据（如 AI 规则候选记录）为异步加载，等待请求完成后再截图
      await page.waitForLoadState('networkidle', { timeout: 8000 }).catch(() => undefined)
      await page.waitForTimeout(900)
      await modal.screenshot({ path: resolve(ELEM_DIR, `${name}.png`) })
      console.log(`[OK] modal/${name}`)
    } catch (err) {
      console.log(`[FAIL] modal/${name}: ${err}`)
    }
  }
}

/**
 * 截取账单解析预览：上传样例账单后解析。
 *
 * @param page Page 实例
 */
export async function captureBillParse(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1440, height: 1000 })
    await page.goto(BASE_URL + '/transactions')
    await waitPage(page, { selector: PAGE_READY })
    if (!(await clickText(page, '导入账单'))) throw new Error('未找到「导入账单」按钮')
    const modal = page.locator('.n-modal').first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })
    await modal.locator("input[type='file']").setInputFiles(SAMPLE_BILL)
    await page.waitForTimeout(800)
    await modal.locator('button', { hasText: '解析' }).first().click()
    // 等待预览表格出现
    await page.locator('.n-modal .n-data-table').first().waitFor({ state: 'visible', timeout: 40000 })
    await page.waitForTimeout(800)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'bill-parse-preview.png') })
    console.log('[OK] modal/bill-parse-preview')
  } catch (err) {
    console.log(`[FAIL] modal/bill-parse-preview: ${err}`)
  }
}

/**
 * 截取「图片记账」：多图上传 Tab 与识别结果弹窗。
 *
 * @param page Page 实例
 * @param importRecords 识别后是否导入勾选记录（默认 true，便于后续截取来源图片）
 */
export async function captureAiRecordImage(page: Page, importRecords = true): Promise<void> {
  try {
    await page.setViewportSize({ width: 1440, height: 1000 })
    await page.goto(BASE_URL + '/transactions')
    await waitPage(page, { selector: PAGE_READY })
    if (!(await clickText(page, '智能记账'))) throw new Error('未找到「智能记账」按钮')
    const modal = page.locator('.n-modal').first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })

    // 切到「图片记账」标签页，上传两张虚构账单截图后截取上传界面
    await modal.locator('.n-tabs-tab', { hasText: '图片记账' }).first().click()
    await page.waitForTimeout(600)
    await modal.locator("input[type='file']").setInputFiles([SAMPLE_IMAGE, SAMPLE_IMAGE2])
    await page.waitForTimeout(600)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'ai-record-image.png') })
    console.log('[OK] modal/ai-record-image')

    const recognize = modal.locator('button', { hasText: '识别图片' }).first()
    await recognize.evaluate((el) => (el as HTMLElement).click())

    // 结果弹窗出现（标题「图片记账结果」）且表格有数据
    const resultModal = page.locator('.n-modal', { hasText: '图片记账结果' }).first()
    await resultModal.waitFor({ state: 'visible', timeout: 180000 })
    await resultModal.locator('.n-data-table-tbody tr').first().waitFor({ state: 'visible', timeout: 180000 })
    await page.waitForLoadState('networkidle', { timeout: 20000 }).catch(() => undefined)
    await page.waitForTimeout(800)
    await resultModal.screenshot({ path: resolve(ELEM_DIR, 'ai-record-result.png') })
    console.log('[OK] modal/ai-record-result')

    // 导入勾选记录，便于后续「来源图片」截图（去重键保证重复执行不会产生新记录）
    if (importRecords) {
      const importBtn = resultModal.locator('button', { hasText: '导入勾选' }).first()
      await importBtn.evaluate((el) => (el as HTMLElement).click())
      await resultModal.waitFor({ state: 'hidden', timeout: 60000 }).catch(() => undefined)
      await page.waitForTimeout(1000)
      console.log('[OK] modal/ai-record-import')
    }
  } catch (err) {
    console.log(`[FAIL] modal/ai-record-image: ${err}`)
  }
}

/**
 * 截取「来源图片」查看弹窗（点击表格中图片记账记录的「查看（N）」）。
 *
 * @param page Page 实例
 */
export async function captureSourceImages(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1440, height: 1000 })
    await page.goto(BASE_URL + '/transactions')
    await waitPage(page, { selector: '.n-data-table-tbody tr' })
    const viewBtn = page.locator('button', { hasText: /查看（\d+）/ }).first()
    await viewBtn.waitFor({ state: 'visible', timeout: 20000 })
    await viewBtn.evaluate((el) => (el as HTMLElement).click())
    const modal = page.locator('.n-modal', { hasText: '来源图片' }).first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })
    await page.waitForLoadState('networkidle', { timeout: 20000 }).catch(() => undefined)
    await page.waitForTimeout(1000)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'source-images.png') })
    console.log('[OK] modal/source-images')
  } catch (err) {
    console.log(`[FAIL] modal/source-images: ${err}`)
  }
}

/**
 * 截取编辑记录弹窗中「交易渠道」的 AI 推荐与新建按钮。
 *
 * @param page Page 实例
 */
export async function captureChannelAi(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1440, height: 1000 })
    await page.goto(BASE_URL + '/transactions')
    await waitPage(page, { selector: PAGE_READY })
    const editBtn = page.locator('tbody tr').first().locator('button', { hasText: '编辑' }).first()
    await editBtn.waitFor({ state: 'visible', timeout: 20000 })
    await editBtn.click()
    const modal = page.locator('.n-modal').first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })
    await page.waitForTimeout(800)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'ai-channel-suggest.png') })
    console.log('[OK] modal/ai-channel-suggest')
  } catch (err) {
    console.log(`[FAIL] modal/ai-channel-suggest: ${err}`)
  }
}

/**
 * 截取「点击趋势柱状图跳转收支记录并自动带入筛选条件」的筛选卡片。
 *
 * @param page Page 实例
 */
export async function captureTrendJump(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1720, height: 1000 })
    await page.goto(BASE_URL + '/dashboard')
    await waitPage(page, { selector: 'canvas' })
    // 切到「近12月 + 按月」，柱子更宽便于稳定点中；同时清空收支记录筛选偏好，避免旧条件干扰
    await page.evaluate(() => {
      localStorage.setItem('finance.dashboard.prefs', JSON.stringify({
        rangeType: '12month', granularity: 'month', filterStatsScope: 'INCLUDED',
        filterType: [], filterCategory: [], filterChannel: [], filterTag: [],
        filterMinAmount: null, filterMaxAmount: null, filterRemark: '',
      }))
      localStorage.removeItem('finance.transaction.filterPrefs')
    })
    await page.reload()
    await waitPage(page, { selector: 'canvas' })
    await page.waitForTimeout(1500)

    // 趋势图是页面首个 canvas；沿 x 轴扫描点击柱体，命中后跳转到收支记录
    const canvas = page.locator('canvas').first()
    const box = await canvas.boundingBox()
    if (!box) throw new Error('趋势图 canvas 不可见')
    const left = box.x + 60
    const right = box.x + box.width - 20
    const y = box.y + box.height - 48
    let jumped = false
    for (let x = left + 4; x < right && !jumped; x += 8) {
      await page.mouse.click(x, y)
      await page.waitForTimeout(60)
      if (page.url().includes('/transactions')) jumped = true
    }
    if (!jumped) throw new Error('点击趋势图未跳转到收支记录')

    await waitPage(page, { selector: '.active-filters' })
    const card = page.locator('.n-card').first()
    await card.screenshot({ path: resolve(ELEM_DIR, 'dashboard-trend-jump.png') })
    console.log('[OK] dashboard-trend-jump')
  } catch (err) {
    console.log(`[FAIL] dashboard-trend-jump: ${err}`)
  }
}

/** 系统设置面板：输出文件名与面板标题 */
const SETTINGS_PANELS: Array<[string, string]> = [
  ['panel-database', '数据库配置'],
  ['panel-registration', '注册设置'],
  ['panel-bill-source-stats', '账单来源统计默认值'],
  ['panel-display', '外观设置'],
  ['panel-ai', 'AI 模型配置'],
  ['panel-notification', '定时通知'],
]

/**
 * 截取编辑记录弹窗（点击表格首行的「编辑」）。
 *
 * @param page Page 实例
 */
export async function captureEditRecord(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1720, height: 1000 })
    await page.goto(BASE_URL + '/transactions')
    await waitPage(page, { selector: PAGE_READY })
    const editBtn = page.locator('tbody tr').first().locator('button', { hasText: '编辑' }).first()
    await editBtn.waitFor({ state: 'visible', timeout: 20000 })
    await editBtn.click()
    const modal = page.locator('.n-modal').first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })
    await page.waitForTimeout(800)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'edit-record.png') })
    console.log('[OK] modal/edit-record')
  } catch (err) {
    console.log(`[FAIL] modal/edit-record: ${err}`)
  }
}

/**
 * 截取「AI 生成规则」的两步弹窗：步骤一选择记录、步骤二预览规则建议。
 *
 * @param page Page 实例
 */
export async function captureAiRule(page: Page): Promise<void> {
  try {
    await page.setViewportSize({ width: 1440, height: 1000 })
    await page.goto(BASE_URL + '/rules')
    await waitPage(page, { selector: PAGE_READY })
    if (!(await clickText(page, 'AI 生成规则'))) throw new Error('未找到「AI 生成规则」按钮')
    const modal = page.locator('.n-modal').first()
    await modal.waitFor({ state: 'visible', timeout: 20000 })

    // 步骤一：候选记录异步加载，等待数据行出现后再截图
    await modal.locator('.n-data-table-tbody tr').first().waitFor({ state: 'visible', timeout: 20000 })
    await page.waitForTimeout(800)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'ai-rule-select.png') })
    console.log('[OK] modal/ai-rule-select')

    // 步骤二：点击「生成规则」，等待 AI 返回并渲染规则建议表
    const generateBtn = modal.locator('button', { hasText: '生成规则' }).first()
    await generateBtn.waitFor({ state: 'visible', timeout: 15000 })
    await generateBtn.evaluate((el) => (el as HTMLElement).click())
    // 步骤二特有按钮出现，说明已切换到预览步骤
    await modal.locator('button', { hasText: '创建勾选规则' }).first().waitFor({ state: 'visible', timeout: 60000 })
    await modal.locator('.n-data-table-tbody tr').first().waitFor({ state: 'visible', timeout: 60000 })
    // 等待 AI 请求结束与 loading 遮罩消失
    await page.waitForLoadState('networkidle', { timeout: 60000 }).catch(() => undefined)
    await page.waitForTimeout(1000)
    await modal.screenshot({ path: resolve(ELEM_DIR, 'ai-rule-preview.png') })
    console.log('[OK] modal/ai-rule-preview')
  } catch (err) {
    console.log(`[FAIL] modal/ai-rule: ${err}`)
  }
}

/**
 * 截取系统设置的配置面板。
 *
 * @param page Page 实例
 * @param only 仅截取指定标题的面板（可选，缺省截取全部）
 */
export async function captureSettingsPanels(page: Page, only?: string[]): Promise<void> {
  await page.setViewportSize({ width: 1440, height: 1200 })
  await page.goto(BASE_URL + '/settings')
  await waitPage(page, { selector: PAGE_READY })
  const panels = only ? SETTINGS_PANELS.filter(([, title]) => only.includes(title)) : SETTINGS_PANELS
  for (const [name, title] of panels) {
    try {
      const card = page.locator('.config-card', { hasText: title }).first()
      await card.waitFor({ state: 'visible', timeout: 20000 })
      await card.scrollIntoViewIfNeeded()
      await page.waitForTimeout(500)
      await card.screenshot({ path: resolve(ELEM_DIR, `${name}.png`) })
      console.log(`[OK] ${name}`)
    } catch (err) {
      console.log(`[FAIL] ${name}: ${err}`)
    }
  }
}

async function main(): Promise<void> {
  const browser = await launchBrowser()
  try {
    const guestContext = await newContext(browser, { width: 1440, height: 900 })
    const guestPage = await guestContext.newPage()
    await captureCards(guestPage)
    await guestContext.close()

    const token = await login()
    const context = await newContext(browser)
    await injectSession(context, token)
    const page = await context.newPage()
    await captureModals(page)
    await captureEditRecord(page)
    await captureAiRule(page)
    await captureAiRecordImage(page)
    await captureSourceImages(page)
    await captureChannelAi(page)
    await captureSettingsPanels(page)
    await captureBillParse(page)
    await captureTrendJump(page)
    await context.close()
  } finally {
    await browser.close()
  }
}

if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
  main().catch((err) => {
    console.error('FAIL', err)
    process.exit(1)
  })
}