import { test } from 'node:test'
import assert from 'node:assert/strict'
import { runPageE2ECorePath, type PageE2EDeps } from '../src/shared/page-e2e-core-path.ts'

const terminal = (status: string) => status === 'SUCCESS' || status === 'FAILED'

function makeDeps(over: Partial<PageE2EDeps> = {}): PageE2EDeps & { calls: string[] } {
  const calls: string[] = []
  return {
    calls,
    parse: async () => {
      calls.push('parse')
      return 101
    },
    createTask: async (taskId: number) => {
      calls.push(`create:${taskId}`)
    },
    poll: async (taskId: number) => {
      calls.push(`poll:${taskId}`)
      return 'SUCCESS'
    },
    refreshHistory: async () => {
      calls.push('refresh')
    },
    ...over,
  }
}

test('test_task_093_collect_asin_e2e_normal_default_path', async () => {
  const deps = makeDeps()
  const result = await runPageE2ECorePath(deps)
  assert.equal(result.taskId, 101)
  assert.equal(result.status, 'SUCCESS')
  assert.deepEqual(result.completedSteps, ['parse', 'create-task', 'poll', 'refresh-history'])
  assert.equal(result.attempts, 1)
  assert.deepEqual(deps.calls, ['parse', 'create:101', 'poll:101', 'refresh'])
})

test('test_task_093_collect_asin_e2e_normal_multiple_items', async () => {
  // 三个页面核心路径批量执行：结果不丢失且各页面顺序稳定
  const pages = ['similar-asin', 'shop-data-crawl', 'collect-data']
  const depss = pages.map((page, i) =>
    makeDeps({
      parse: async () => {
        depss[i].calls.push(`parse:${page}`)
        return 200 + i
      },
      poll: async () => {
        depss[i].calls.push(`poll:${page}`)
        return 'SUCCESS'
      },
    }),
  )
  const results = await Promise.all(pages.map((_, i) => runPageE2ECorePath(depss[i])))
  assert.equal(results.length, 3)
  assert.deepEqual(
    results.map((r) => r.taskId),
    [200, 201, 202],
  )
  for (let i = 0; i < 3; i++) {
    assert.equal(results[i].status, 'SUCCESS')
    assert.deepEqual(results[i].completedSteps, ['parse', 'create-task', 'poll', 'refresh-history'])
    assert.deepEqual(depss[i].calls, [`parse:${pages[i]}`, `create:${200 + i}`, `poll:${pages[i]}`, 'refresh'])
  }
})

test('test_task_093_collect_asin_e2e_normal_repeated_operation_is_idempotent', async () => {
  const deps = makeDeps()
  const first = await runPageE2ECorePath(deps)
  const second = await runPageE2ECorePath(deps)
  assert.equal(first.taskId, second.taskId)
  assert.deepEqual(first.completedSteps, second.completedSteps)
  // 重复执行不产生重复状态：调用计数线性增长，无残留
  assert.equal(deps.calls.filter((c) => c === 'parse').length, 2)
  assert.equal(deps.calls.filter((c) => c === 'refresh').length, 2)
  assert.equal(deps.calls.length, 8)
})

test('test_task_093_collect_asin_e2e_boundary_empty_input', async () => {
  // parse 无可处理数据：安全跳过建任务/轮询/刷新，不创建无效资源
  const deps = makeDeps({ parse: async () => 0 })
  const result = await runPageE2ECorePath(deps)
  assert.equal(result.taskId, 0)
  assert.deepEqual(result.completedSteps, ['parse'])
  assert.deepEqual(deps.calls, [], 'parse 返回 0 时不再触发任何调用')
  // 空步骤序列等价处理：不执行任何步骤
  const empty = makeDeps({ parse: async () => 0 })
  assert.deepEqual((await runPageE2ECorePath(empty)).completedSteps, ['parse'])
})

test('test_task_093_collect_asin_e2e_boundary_single_item', async () => {
  // 单任务：一次轮询即终态，不依赖批量路径
  const deps = makeDeps()
  const result = await runPageE2ECorePath(deps, { maxPollAttempts: 3 })
  assert.equal(result.taskId, 101)
  assert.equal(result.attempts, 1)
  assert.equal(result.status, 'SUCCESS')
  assert.equal(deps.calls.filter((c) => c.startsWith('poll')).length, 1)
})

test('test_task_093_collect_asin_e2e_boundary_limit_and_overflow', async () => {
  // 轮询次数有界：超过 maxPollAttempts 降级返回当前状态，不发生无界轮询
  let pollCount = 0
  const deps = makeDeps({
    poll: async () => {
      pollCount += 1
      return 'RUNNING'
    },
  })
  const result = await runPageE2ECorePath(deps, { maxPollAttempts: 4 })
  assert.equal(result.status, 'RUNNING', '超过上限降级返回，不抛错')
  assert.equal(result.attempts, 4)
  assert.equal(pollCount, 4)
  assert.deepEqual(result.completedSteps, ['parse', 'create-task', 'poll', 'poll', 'poll', 'poll'])
  assert.ok(!result.completedSteps.includes('refresh-history'), '终态未达成不刷新历史')
})

test('test_task_093_collect_asin_e2e_invalid_input_rejected', async () => {
  await assert.rejects(() => runPageE2ECorePath(null as never), /deps 必须是对象/)
  await assert.rejects(() => runPageE2ECorePath({} as never), /parse 必须是函数/)
  await assert.rejects(
    () => runPageE2ECorePath({ parse: async () => 1 } as never),
    /createTask 必须是函数/,
  )
  const missingPoll = makeDeps()
  delete (missingPoll as Partial<PageE2EDeps>).poll
  await assert.rejects(() => runPageE2ECorePath(missingPoll as never), /poll 必须是函数/)
  const deps = makeDeps()
  await assert.rejects(() => runPageE2ECorePath(deps, { maxPollAttempts: 0 }), /maxPollAttempts 必须为正数/)
  await assert.rejects(() => runPageE2ECorePath(deps, { maxPollAttempts: -1 }), /maxPollAttempts 必须为正数/)
  // parse 返回非法 taskId
  const badTask = makeDeps({ parse: async () => -5 })
  await assert.rejects(() => runPageE2ECorePath(badTask), /parse 必须返回正整数 taskId/)
})

test('test_task_093_collect_asin_e2e_dependency_failure_releases_resources', async () => {
  // 断网：poll 抛错 → 执行终止、cleanup 释放资源；恢复后同一 deps 重跑成功
  let broken = true
  let cleaned = 0
  const deps = makeDeps({
    poll: async (taskId: number) => {
      if (broken) throw new Error('Network Error')
      return 'SUCCESS'
    },
    cleanup: async () => {
      cleaned += 1
    },
  })
  await assert.rejects(() => runPageE2ECorePath(deps), /Network Error/)
  assert.equal(cleaned, 1, '失败后 cleanup 释放资源')
  broken = false
  const result = await runPageE2ECorePath(deps)
  assert.equal(result.status, 'SUCCESS')
  assert.equal(cleaned, 2, '成功路径同样清理')
  assert.equal(result.taskId, 101)
  // 中途失败（createTask 抛错）→ 剩余步骤跳过 + cleanup 执行
  let createFailed = true
  const deps2 = makeDeps({
    createTask: async (taskId: number) => {
      if (createFailed) throw new Error('create down')
      deps2.calls.push(`create:${taskId}`)
    },
    cleanup: async () => {
      cleaned += 1
    },
  })
  await assert.rejects(() => runPageE2ECorePath(deps2), /create down/)
  assert.equal(cleaned, 3)
  assert.deepEqual(deps2.calls, ['parse'], 'create 失败后不再 poll/refresh')
  createFailed = false
  const retry = await runPageE2ECorePath(deps2)
  assert.equal(retry.status, 'SUCCESS')
  assert.equal(cleaned, 4)
})