import test from 'node:test'
import assert from 'node:assert/strict'
import { readSource } from './helpers.ts'
import {
  createBatchDownloadJob,
  downloadZipHeaderCounts,
  failBatchDownload,
  parseVideoSelectionKey,
  startBatchDownload,
  succeedBatchDownload,
  toVideoZipRequest,
} from '../src/pages/tasks/image-video-download.ts'

test('test_task_106_video_batch_download_normal_primary_path', () => {
  // 正常主路径：选择键解析为 {task_id, video_index} 打包请求体。
  const key = parseVideoSelectionKey('11:2')
  assert.deepEqual(key, { taskId: 11, videoIndex: 2 })
  assert.deepEqual(toVideoZipRequest(['11:2', '7:0']), {
    items: [
      { task_id: 11, video_index: 2 },
      { task_id: 7, video_index: 0 },
    ],
  })
})

test('test_task_106_video_batch_download_normal_variant_input', () => {
  // 正常变体：job 从 running 到 done 携带成功/失败计数。
  const job = succeedBatchDownload(startBatchDownload(createBatchDownloadJob()), 18, 2)
  assert.equal(job.status, 'done')
  assert.equal(job.fileCount, 18)
  assert.equal(job.errorCount, 2)
})

test('test_task_106_video_batch_download_repeated_is_idempotent', () => {
  // 正常重复：请求体构建稳定、去重键不重复。
  assert.deepEqual(toVideoZipRequest(['1:0', '1:0', '2:1']), { items: [{ task_id: 1, video_index: 0 }, { task_id: 2, video_index: 1 }] })
})

test('test_task_106_video_batch_download_boundary_empty_input', () => {
  // 边界空值：无选择/空任务 id 键被忽略。
  assert.deepEqual(toVideoZipRequest([]), { items: [] })
  assert.equal(parseVideoSelectionKey('9:empty'), null)
})

test('test_task_106_video_batch_download_boundary_single_item', () => {
  // 边界单元素：单键请求体。
  assert.deepEqual(toVideoZipRequest(['5:0']), { items: [{ task_id: 5, video_index: 0 }] })
  assert.deepEqual(createBatchDownloadJob(), { status: 'idle' })
})

test('test_task_106_video_batch_download_boundary_limit_or_missing_field', () => {
  // 边界上限/缺字段：响应头大小写不敏感解析计数。
  assert.deepEqual(downloadZipHeaderCounts({ 'X-Archive-File-Count': '3', 'x-archive-error-count': '1' }), { fileCount: 3, errorCount: 1 })
  assert.deepEqual(downloadZipHeaderCounts({}), {})
})

test('test_task_106_video_batch_download_invalid_input_rejected', () => {
  // 异常输入：失败 job 带可操作消息；非数字头忽略。
  const job = failBatchDownload(createBatchDownloadJob(), '单次最多打包 100 个视频')
  assert.equal(job.status, 'failed')
  assert.equal(job.message, '单次最多打包 100 个视频')
  assert.deepEqual(downloadZipHeaderCounts({ 'x-archive-file-count': 'abc' }), {})
  assert.equal(parseVideoSelectionKey('bad'), null)
})

test('test_task_106_video_batch_download_dependency_failure_returns_actionable_message', () => {
  // 依赖失败/下载走 adapter：打包模型纯逻辑；adapter POST /download-zip + blob。
  const model = readSource('src/pages/tasks/image-video-download.ts')
  assert.equal(/axios|http\.|vue/.test(model), false, '批量下载模型保持纯逻辑')
  const api = readSource('src/pages/tasks/image-video-api.ts')
  assert.match(api, /download-zip/)
  assert.match(api, /requestVideoZipDownload/)
  assert.match(api, /responseType:\s*['\"]blob['\"]/)
})