import test from 'node:test'
import assert from 'node:assert/strict'
import { readSource } from './helpers.ts'
import { buildPreviewDescriptor } from '../src/pages/records/history-preview.ts'

function item(over: Record<string, unknown>) {
  return {
    id: 1,
    userId: null,
    username: '',
    createdAt: '',
    panelType: 'x',
    originalUrls: [],
    resultUrls: [],
    longImageUrl: '',
    ...over,
  }
}

test('test_task_124_history_preview_normal_primary_path', () => {
  // 正常主路径：预览取结果图与长图。
  const descriptor = buildPreviewDescriptor(item({ resultUrls: ['https://a/1.png', 'http://b/2.png'], longImageUrl: 'https://long.png' }), 10)
  assert.deepEqual(descriptor.images, ['https://a/1.png', 'http://b/2.png', 'https://long.png'])
})

test('test_task_124_history_preview_normal_variant_input', () => {
  // 正常变体：非 http 地址过滤。
  const descriptor = buildPreviewDescriptor(item({ resultUrls: ['ftp://bad', 'https://ok.png'] }), 10)
  assert.deepEqual(descriptor.images, ['https://ok.png'])
})

test('test_task_124_history_preview_repeated_is_idempotent', () => {
  // 正常重复：预览构建稳定、不改记录。
  const record = item({ resultUrls: ['https://a.png'] })
  assert.deepEqual(buildPreviewDescriptor(record, 10), buildPreviewDescriptor(record, 10))
  assert.equal((record as { resultUrls: string[] }).resultUrls.length, 1)
})

test('test_task_124_history_preview_boundary_empty_input', () => {
  // 边界空值：无图预览回空。
  const descriptor = buildPreviewDescriptor(item({}), 10)
  assert.deepEqual(descriptor.images, [])
})

test('test_task_124_history_preview_boundary_single_item', () => {
  // 边界单元素：单图预览。
  const descriptor = buildPreviewDescriptor(item({ resultUrls: ['https://a.png'] }), 10)
  assert.equal(descriptor.images.length, 1)
})

test('test_task_124_history_preview_boundary_limit_or_missing_field', () => {
  // 边界上限：超上限截断。
  const urls = Array.from({ length: 30 }, (_, i) => `https://a/${i}.png`)
  const descriptor = buildPreviewDescriptor(item({ resultUrls: urls }), 10)
  assert.equal(descriptor.images.length, 10)
})

test('test_task_124_history_preview_invalid_input_rejected', () => {
  // 异常输入：空记录预览为空。
  assert.deepEqual(buildPreviewDescriptor(null as never, 10).images, [])
})

test('test_task_124_history_preview_dependency_failure_returns_actionable_message', () => {
  // 依赖失败/可操作：预览纯逻辑、无框架/http；限制长度避免大内容阻塞。
  const mod = readSource('src/pages/records/history-preview.ts')
  assert.equal(/axios|http\.|vue/.test(mod), false, '预览保持纯逻辑')
  assert.match(mod, /limit/)
})