/**
 * MessageService 测试工具
 * 用于验证消息服务是否正常工作
 */

import MessageService from '@/services/message'
import type { ChatMessage } from '@/types'

/**
 * 创建测试消息
 */
function createTestMessages(): ChatMessage[] {
  return [
    {
      id: '1',
      content: '用户消息 1',
      type: 'user',
      timestamp: '2025-07-26 22:09:10',
      status: 'sent'
    },
    {
      id: '2',
      content: 'AI 回复 1',
      type: 'ai',
      timestamp: '2025-07-26 22:09:15',
      status: 'sent'
    },
    {
      id: '3',
      content: '用户消息 2',
      type: 'user',
      timestamp: '2025-07-26 22:09:20',
      status: 'sent'
    },
    {
      id: '4',
      content: 'AI 回复 2',
      type: 'ai',
      timestamp: '2025-07-26 22:09:25',
      status: 'sent'
    },
    {
      id: '5',
      content: '用户消息 3',
      type: 'user',
      timestamp: '2025-07-26 22:09:30',
      status: 'sent'
    }
  ]
}

/**
 * 创建乱序的测试消息
 */
function createDisorderedMessages(): ChatMessage[] {
  const messages = createTestMessages()
  // 打乱顺序
  return [messages[4], messages[1], messages[3], messages[0], messages[2]]
}

/**
 * 创建包含重复消息的测试数据
 */
function createDuplicateMessages(): ChatMessage[] {
  const messages = createTestMessages()
  // 添加重复消息
  return [...messages, messages[0], messages[2]]
}

/**
 * 测试基本排序
 */
export function testBasicSort(): void {
  console.log('🧪 测试 1: 基本排序')
  console.log('='.repeat(50))

  const messages = createDisorderedMessages()
  console.log('原始消息顺序:')
  messages.forEach((msg, idx) => {
    console.log(`  ${idx + 1}. [${msg.type}] ${msg.content} (${msg.timestamp})`)
  })

  const sorted = MessageService.sortAndDeduplicateMessages(messages)
  console.log('\n排序后的消息顺序:')
  sorted.forEach((msg, idx) => {
    console.log(`  ${idx + 1}. [${msg.type}] ${msg.content} (${msg.timestamp})`)
  })

  // 验证排序结果
  const isCorrect = sorted.every((msg, idx) => {
    if (idx === 0) return true
    const prevTime = MessageService.parseTimestamp(sorted[idx - 1].timestamp)
    const currTime = MessageService.parseTimestamp(msg.timestamp)
    return prevTime <= currTime
  })

  console.log(`\n✅ 排序结果: ${isCorrect ? '正确' : '错误'}`)
  console.log('='.repeat(50))
}

/**
 * 测试去重
 */
export function testDeduplication(): void {
  console.log('🧪 测试 2: 去重')
  console.log('='.repeat(50))

  const messages = createDuplicateMessages()
  console.log(`原始消息数量: ${messages.length}`)
  console.log('原始消息:')
  messages.forEach((msg, idx) => {
    console.log(`  ${idx + 1}. [${msg.type}] ${msg.content} (ID: ${msg.id})`)
  })

  const deduped = MessageService.sortAndDeduplicateMessages(messages)
  console.log(`\n去重后消息数量: ${deduped.length}`)
  console.log('去重后的消息:')
  deduped.forEach((msg, idx) => {
    console.log(`  ${idx + 1}. [${msg.type}] ${msg.content} (ID: ${msg.id})`)
  })

  // 验证去重结果
  const ids = new Set(deduped.map(m => m.id))
  const isCorrect = ids.size === deduped.length

  console.log(`\n✅ 去重结果: ${isCorrect ? '正确' : '错误'}`)
  console.log('='.repeat(50))
}

/**
 * 测试时间解析
 */
export function testTimeParser(): void {
  console.log('🧪 测试 3: 时间解析')
  console.log('='.repeat(50))

  const testCases = [
    '2025-07-26 22:09:10',
    '2025-07-26T22:09:10',
    '2025-07-26T22:09:10.000Z',
    new Date('2025-07-26T22:09:10'),
    1721999350000
  ]

  testCases.forEach((timestamp, idx) => {
    const parsed = MessageService.parseTimestamp(timestamp as any)
    console.log(`  ${idx + 1}. ${JSON.stringify(timestamp)} -> ${parsed}`)
  })

  console.log('\n✅ 时间解析完成')
  console.log('='.repeat(50))
}

/**
 * 运行所有排序测试
 */
export function runSortTests(): void {
  console.log('\n')
  console.log('╔' + '═'.repeat(48) + '╗')
  console.log('║' + ' '.repeat(10) + '消息排序功能测试' + ' '.repeat(22) + '║')
  console.log('╚' + '═'.repeat(48) + '╝')
  console.log('\n')

  testBasicSort()
  console.log('\n')

  testDeduplication()
  console.log('\n')

  testTimeParser()
  console.log('\n')

  console.log('╔' + '═'.repeat(48) + '╗')
  console.log('║' + ' '.repeat(15) + '所有测试完成' + ' '.repeat(21) + '║')
  console.log('╚' + '═'.repeat(48) + '╝')
  console.log('\n')
}

export const testMessageService = async () => {
  console.log('🧪 开始测试 MessageService...')

  try {
    // 测试获取最近消息
    console.log('📝 测试获取最近消息...')
    const recentMessages = await MessageService.getRecentMessages({ limit: 5 })
    console.log('✅ 最近消息:', recentMessages)

    // 测试分页获取消息
    console.log('📄 测试分页获取消息...')
    const pageMessages = await MessageService.getUserMessages(1, 10)
    console.log('✅ 分页消息:', pageMessages)

    console.log('🎉 MessageService 测试完成！')
    return true
  } catch (error) {
    console.error('❌ MessageService 测试失败:', error)
    return false
  }
}

// 在开发环境下可以在控制台调用这些函数进行测试
if (typeof window !== 'undefined') {
  (window as any).testMessageService = testMessageService
  (window as any).testBasicSort = testBasicSort
  (window as any).testDeduplication = testDeduplication
  (window as any).testTimeParser = testTimeParser
  (window as any).runSortTests = runSortTests
}
