/**
 * 界面截图工具（开发辅助）
 *
 * 用法：先起 dev server，再执行
 *   node scripts/screenshot.mjs [输出目录]
 *
 * 会注入一份有代表性的种子数据，分别截取看板、今日视图与移动端布局，
 * 便于对照审视视觉改动。
 */

import { mkdir } from 'node:fs/promises'
import path from 'node:path'

import { chromium } from '@playwright/test'

const BASE_URL = process.env.SCREENSHOT_URL ?? 'http://localhost:5199'
const OUT_DIR = path.resolve(process.argv[2] ?? '.screenshots')
const CHANNEL = process.env.PLAYWRIGHT_CHANNEL ?? 'chrome'

/** 相对今天偏移若干天的日期 */
function dayOffset(days) {
  const date = new Date()
  date.setDate(date.getDate() + days)
  const month = String(date.getMonth() + 1).padStart(2, '0')
  const day = String(date.getDate()).padStart(2, '0')
  return `${date.getFullYear()}-${month}-${day}`
}

function iso(hoursAgo) {
  return new Date(Date.now() - hoursAgo * 3600 * 1000).toISOString()
}

function task(id, title, status, priority, extra = {}) {
  return {
    id,
    title,
    description: extra.description ?? '',
    status,
    priority,
    tags: extra.tags ?? [],
    dueDate: extra.dueDate ?? null,
    sortOrder: extra.sortOrder ?? 1024,
    createdAt: iso(72),
    updatedAt: iso(2),
    completedAt: extra.completedAt ?? (status === 'done' ? iso(20) : null),
    archivedAt: extra.archivedAt ?? null,
  }
}

const SEED = [
  task('t1', '整理下季度 OKR 初稿', 'todo', 3, {
    tags: ['规划'],
    dueDate: dayOffset(-2),
    description: '先把去年 Q4 的复盘结论过一遍，再拉上两位组长对一下目标口径。',
    sortOrder: 1024,
  }),
  task('t2', '修复导出 JSON 时文件名重复的问题', 'todo', 3, {
    tags: ['前端', 'Bug'],
    dueDate: dayOffset(0),
    sortOrder: 2048,
  }),
  task('t3', '调研 IndexedDB 替换 localStorage 的可行性', 'todo', 2, {
    tags: ['技术调研'],
    dueDate: dayOffset(3),
    sortOrder: 3072,
  }),
  task('t4', '给看板加一个「本周完成」的统计', 'todo', 2, {
    tags: ['前端'],
    sortOrder: 4096,
  }),
  task('t5', '把设计稿里的图标补齐', 'todo', 1, {
    tags: ['设计'],
    dueDate: dayOffset(9),
    sortOrder: 5120,
  }),
  task('t6', '写 PWA 离线缓存的说明文档', 'todo', 1, { tags: ['文档'], sortOrder: 6144 }),

  task('t7', '重写任务排序算法，改用相邻中点插入', 'doing', 3, {
    tags: ['前端', '重构'],
    dueDate: dayOffset(-1),
    sortOrder: 1024,
  }),
  task('t8', '补充端到端测试覆盖拖拽场景', 'doing', 2, {
    tags: ['测试'],
    dueDate: dayOffset(1),
    sortOrder: 2048,
  }),
  task('t9', '梳理快捷键与输入法的冲突场景', 'doing', 2, { tags: ['前端'], sortOrder: 3072 }),

  task('t10', '搭好项目骨架与工程规范', 'done', 2, {
    tags: ['基建'],
    completedAt: iso(30),
    sortOrder: 1024,
  }),
  task('t11', '实现任务的增删改查与持久化', 'done', 3, {
    tags: ['前端'],
    completedAt: iso(26),
    sortOrder: 2048,
  }),
  task('t12', '接入 Tailwind 并统一设计变量', 'done', 2, {
    tags: ['设计', '基建'],
    completedAt: iso(22),
    sortOrder: 3072,
  }),
  task('t13', '写第一版 ADR', 'done', 1, {
    tags: ['文档'],
    completedAt: iso(400),
    archivedAt: iso(300),
    sortOrder: 4096,
  }),
]

const STORAGE = {
  schemaVersion: 2,
  tasks: SEED,
}

async function main() {
  await mkdir(OUT_DIR, { recursive: true })

  const browser = await chromium.launch({ channel: CHANNEL === 'chromium' ? undefined : CHANNEL })
  const context = await browser.newContext({
    viewport: { width: 1440, height: 900 },
    deviceScaleFactor: 2,
  })

  const page = await context.newPage()
  await page.goto(BASE_URL)
  await page.evaluate((state) => {
    localStorage.setItem('kanban.tasks', JSON.stringify(state))
  }, STORAGE)

  const shots = [
    { name: 'board', url: '/', viewport: { width: 1440, height: 900 } },
    { name: 'today', url: '/today', viewport: { width: 1440, height: 900 } },
    { name: 'board-detail', url: '/', viewport: { width: 1440, height: 900 }, openDetail: true },
    { name: 'board-mobile', url: '/', viewport: { width: 390, height: 844 } },
  ]

  for (const shot of shots) {
    await page.setViewportSize(shot.viewport)
    await page.goto(`${BASE_URL}${shot.url}`)
    await page.waitForSelector('article, [data-role="empty-state"], h1')

    if (shot.openDetail) {
      await page.locator('article').first().click()
      await page.waitForSelector('[role="dialog"]')
      await page.waitForTimeout(300)
    }

    await page.waitForTimeout(400)
    const file = path.join(OUT_DIR, `${shot.name}.png`)
    await page.screenshot({ path: file })
    console.log(`saved ${path.relative(process.cwd(), file)}`)
  }

  await browser.close()
}

await main()