// e2e 辅助：根 .env 凭据/环境读取、UI 登录、DB 直种夹具（seed-fixture.cjs）。
import { execSync } from 'node:child_process'
import { existsSync, readFileSync } from 'node:fs'
import { join } from 'node:path'
import { fileURLToPath } from 'node:url'
import type { Page } from '@playwright/test'
import { expect } from '@playwright/test'

const repoRoot = fileURLToPath(new URL('../../..', import.meta.url))

export interface AdminCredentials {
  account: string
  password: string
}

function rootEnv(): Map<string, string> {
  const envPath = join(repoRoot, '.env')
  if (!existsSync(envPath)) {
    throw new Error(`[admin e2e] 仓库根 .env 不存在（${envPath}）`)
  }
  const vars = new Map<string, string>()
  for (const line of readFileSync(envPath, 'utf-8').split(/\r?\n/)) {
    const match = /^([A-Z0-9_]+)=(.*)$/.exec(line.trim())
    if (match) vars.set(match[1], match[2])
  }
  return vars
}

export function adminCredentials(): AdminCredentials {
  const vars = rootEnv()
  const account = vars.get('ADMIN_ACCOUNT') ?? 'admin'
  const password = vars.get('ADMIN_PASSWORD') ?? 'admin-secret-change-me'
  return { account, password }
}

/** UI 登录（真实后端）：填账号密码 → 落到 /albums/manage */
export async function loginAsAdmin(page: Page): Promise<void> {
  const { account, password } = adminCredentials()
  await page.goto('/#/auth/login')
  await page.getByPlaceholder('请输入账号').fill(account)
  await page.getByPlaceholder('请输入密码', { exact: false }).fill(password)
  await page.getByRole('button', { name: '登录' }).click()
  await expect(page).toHaveURL(/\/albums\/manage/, { timeout: 20_000 })
}

/** 直种夹具（seed-fixture.cjs）：staff 账号 / 相册种子照片（幂等） */
export function seedFixture(mode: 'staff' | 'photos', ...args: string[]): void {
  const vars = rootEnv()
  const databaseUrl = vars.get('DATABASE_URL_CN')
  if (!databaseUrl) {
    throw new Error('[admin e2e] 根 .env 缺少 DATABASE_URL_CN')
  }
  // @photo/db-cn 绝对路径：apps/admin 不依赖该包，借 services/api 的 node_modules
  const dbCn = join(repoRoot, 'services', 'api', 'node_modules', '@photo', 'db-cn')
  execSync(`node seed-fixture.cjs ${mode} ${args.join(' ')}`, {
    cwd: fileURLToPath(new URL('.', import.meta.url)),
    stdio: 'inherit',
    shell: true,
    env: { ...process.env, PHOTO_DB_CN: dbCn, DATABASE_URL_CN: databaseUrl }
  })
}