import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
import { RtmManagerAdapter } from '../../src/managers/rtm-manager-adapter'
import { SttError } from '../../src/core/stt-error'
import AgoraRTM from 'agora-rtm'

describe('RtmManagerAdapter', () => {
  let manager: RtmManagerAdapter
  const mockAppId = 'test-app-id'

  beforeEach(() => {
    manager = new RtmManagerAdapter(mockAppId)
  })

  afterEach(async () => {
    if (manager.isJoined) {
      await manager.destroy()
    }
  })

  describe('join', () => {
    it('should join successfully with valid config', async () => {
      const config = {
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      }

      await manager.join(config)

      expect(manager.isJoined).toBe(true)
      expect(manager.config).toEqual(config)
      expect(manager.userId).toBe('test-user')
      expect(manager.channel).toBe('test-channel')
      expect(manager.userList).toHaveLength(1)
      expect(manager.userList[0]).toEqual({
        userId: 'test-user',
        userName: 'Test User',
      })

      // 验证 RTM 客户端被正确创建
      expect(AgoraRTM.RTM).toHaveBeenCalledWith(mockAppId, 'test-user', {})
    })

    it('should throw error when config is invalid', async () => {
      const config = {
        channel: '',
        userId: '',
        userName: '',
      }

      await expect(manager.join(config)).rejects.toThrow(SttError)
      await expect(manager.join(config)).rejects.toThrow(
        'Missing required configuration parameters'
      )
    })

    it('should throw error when already joined', async () => {
      const config = {
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      }

      await manager.join(config)

      await expect(manager.join(config)).rejects.toThrow(SttError)
      await expect(manager.join(config)).rejects.toThrow(
        'RTM manager is already joined to a channel'
      )
    })

    it('should throw error when appId is not provided', async () => {
      const managerWithoutAppId = new RtmManagerAdapter()
      const config = {
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      }

      await expect(managerWithoutAppId.join(config)).rejects.toThrow(SttError)
      await expect(managerWithoutAppId.join(config)).rejects.toThrow(
        'App ID is required for RTM connection'
      )
    })

    it('should emit connected event', async () => {
      const connectedHandler = vi.fn()
      manager.on('connected', connectedHandler)

      const config = {
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      }

      await manager.join(config)

      expect(connectedHandler).toHaveBeenCalledTimes(1)
      expect(connectedHandler).toHaveBeenCalledWith({
        channel: 'test-channel',
        userId: 'test-user',
      })
    })

    it('should setup event listeners correctly', async () => {
      const config = {
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      }

      await manager.join(config)

      // 获取创建的 RTM 客户端实例
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.addEventListener).toHaveBeenCalledWith('status', expect.any(Function))
      expect(mockClient.addEventListener).toHaveBeenCalledWith('presence', expect.any(Function))
      expect(mockClient.addEventListener).toHaveBeenCalledWith('storage', expect.any(Function))
    })
  })

  describe('updateSttData', () => {
    beforeEach(async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })
    })

    it('should update STT data successfully', async () => {
      const updatingHandler = vi.fn()
      const updatedHandler = vi.fn()
      manager.on('metadataUpdating', updatingHandler)
      manager.on('metadataUpdated', updatedHandler)

      const data = {
        status: 'start',
        taskId: 'test-task-id',
        token: 'test-token',
        startTime: Date.now(),
        duration: 3600000,
      }

      await manager.updateSttData(data)

      expect(updatingHandler).toHaveBeenCalledTimes(1)
      expect(updatingHandler).toHaveBeenCalledWith({ data })
      expect(updatedHandler).toHaveBeenCalledTimes(1)
      expect(updatedHandler).toHaveBeenCalledWith({ data })

      // 验证存储方法被正确调用
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.storage.setChannelMetadata).toHaveBeenCalledWith(
        'test-channel',
        'MESSAGE',
        expect.arrayContaining([
          { key: 'status', value: expect.any(String) },
          { key: 'taskId', value: expect.any(String) },
          { key: 'token', value: expect.any(String) },
          { key: 'startTime', value: expect.any(String) },
          { key: 'duration', value: expect.any(String) },
        ])
      )
    })

    it('should throw error when not joined', async () => {
      const unjoinedManager = new RtmManagerAdapter(mockAppId)
      const data = {
        status: 'start',
        taskId: 'test-task-id',
      }

      await expect(unjoinedManager.updateSttData(data)).rejects.toThrow(SttError)
      await expect(unjoinedManager.updateSttData(data)).rejects.toThrow(
        'RTM manager must be joined to a channel before updating STT data'
      )
    })

    it('should handle empty data gracefully', async () => {
      await manager.updateSttData({})

      // 验证存储方法没有被调用（因为数据为空）
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.storage.setChannelMetadata).not.toHaveBeenCalled()
    })
  })

  describe('updateLanguages', () => {
    beforeEach(async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })
    })

    it('should update languages successfully', async () => {
      const updatingHandler = vi.fn()
      const updatedHandler = vi.fn()
      manager.on('languagesUpdating', updatingHandler)
      manager.on('languagesUpdated', updatedHandler)

      const languages = [
        { source: 'en-US', target: ['zh-CN', 'ja-JP'] },
        { source: 'zh-CN', target: ['en-US'] },
      ]

      await manager.updateLanguages(languages)

      expect(updatingHandler).toHaveBeenCalledTimes(1)
      expect(updatingHandler).toHaveBeenCalledWith({ languages })
      expect(updatedHandler).toHaveBeenCalledTimes(1)
      expect(updatedHandler).toHaveBeenCalledWith({ languages })

      // 验证 updateSttData 被正确调用
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.storage.setChannelMetadata).toHaveBeenCalledWith(
        'test-channel',
        'MESSAGE',
        expect.arrayContaining([
          { key: 'transcribe1', value: expect.any(String) },
          { key: 'translate1List', value: expect.any(String) },
          { key: 'transcribe2', value: expect.any(String) },
          { key: 'translate2List', value: expect.any(String) },
        ])
      )
    })

    it('should throw error when not joined', async () => {
      const unjoinedManager = new RtmManagerAdapter(mockAppId)
      const languages = [{ source: 'en-US' }]

      await expect(unjoinedManager.updateLanguages(languages)).rejects.toThrow(SttError)
      await expect(unjoinedManager.updateLanguages(languages)).rejects.toThrow(
        'RTM manager must be joined to a channel before updating languages'
      )
    })

    it('should handle empty languages array', async () => {
      await manager.updateLanguages([])

      // 验证 updateSttData 被调用但数据为空
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.storage.setChannelMetadata).toHaveBeenCalledWith(
        'test-channel',
        'MESSAGE',
        expect.arrayContaining([
          { key: 'transcribe1', value: '""' },
          { key: 'translate1List', value: '[]' },
          { key: 'transcribe2', value: '""' },
          { key: 'translate2List', value: '[]' },
        ])
      )
    })
  })

  describe('acquireLock', () => {
    beforeEach(async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })
    })

    it('should acquire lock successfully', async () => {
      const acquiringHandler = vi.fn()
      const acquiredHandler = vi.fn()
      manager.on('lockAcquiring', acquiringHandler)
      manager.on('lockAcquired', acquiredHandler)

      await manager.acquireLock()

      expect(acquiringHandler).toHaveBeenCalledTimes(1)
      expect(acquiredHandler).toHaveBeenCalledTimes(1)

      // 验证锁方法被正确调用
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.lock.acquireLock).toHaveBeenCalledWith(
        'test-channel',
        'MESSAGE',
        'lock_stt'
      )
    })

    it('should throw error when not joined', async () => {
      const unjoinedManager = new RtmManagerAdapter(mockAppId)

      await expect(unjoinedManager.acquireLock()).rejects.toThrow(SttError)
      await expect(unjoinedManager.acquireLock()).rejects.toThrow(
        'RTM manager must be joined to a channel before acquiring lock'
      )
    })
  })

  describe('releaseLock', () => {
    beforeEach(async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })
    })

    it('should release lock successfully', async () => {
      const releasingHandler = vi.fn()
      const releasedHandler = vi.fn()
      manager.on('lockReleasing', releasingHandler)
      manager.on('lockReleased', releasedHandler)

      await manager.releaseLock()

      expect(releasingHandler).toHaveBeenCalledTimes(1)
      expect(releasedHandler).toHaveBeenCalledTimes(1)

      // 验证锁方法被正确调用
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.lock.releaseLock).toHaveBeenCalledWith(
        'test-channel',
        'MESSAGE',
        'lock_stt'
      )
    })

    it('should throw error when not joined', async () => {
      const unjoinedManager = new RtmManagerAdapter(mockAppId)

      await expect(unjoinedManager.releaseLock()).rejects.toThrow(SttError)
      await expect(unjoinedManager.releaseLock()).rejects.toThrow(
        'RTM manager must be joined to a channel before releasing lock'
      )
    })
  })

  describe('destroy', () => {
    it('should destroy manager successfully', async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })

      const destroyingHandler = vi.fn()
      const destroyedHandler = vi.fn()
      manager.on('destroying', destroyingHandler)
      manager.on('destroyed', destroyedHandler)

      await manager.destroy()

      expect(manager.isJoined).toBe(false)
      expect(manager.config).toBeUndefined()
      expect(manager.userList).toHaveLength(0)
      expect(destroyingHandler).toHaveBeenCalledTimes(1)
      expect(destroyedHandler).toHaveBeenCalledTimes(1)

      // 验证 RTM 客户端被正确销毁
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      expect(mockClient.logout).toHaveBeenCalledTimes(1)
    })

    it('should handle destroy when not joined', async () => {
      await expect(manager.destroy()).resolves.not.toThrow()
    })

    it('should remove all event listeners', async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })

      const testHandler = vi.fn()
      manager.on('connected', testHandler)

      await manager.destroy()

      // 验证事件监听器被移除
      manager.emit('connected', { channel: 'test', userId: 'test' })
      expect(testHandler).not.toHaveBeenCalled()
    })
  })

  describe('event handling', () => {
    beforeEach(async () => {
      await manager.join({
        channel: 'test-channel',
        userId: 'test-user',
        userName: 'Test User',
      })
    })

    it('should handle presence events correctly', async () => {
      const userListChangedHandler = vi.fn()
      manager.on('userListChanged', userListChangedHandler)

      // 模拟 presence 事件
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      const presenceHandler = mockClient.addEventListener.mock.calls.find(
        (call: any) => call[0] === 'presence'
      )[1]

      // 模拟 SNAPSHOT 事件
      presenceHandler({
        channelName: 'test-channel',
        eventType: 'SNAPSHOT',
        snapshot: [
          {
            states: {
              type: 'UserInfo',
              userId: 'other-user',
              userName: 'Other User',
            },
          },
        ],
      })

      expect(userListChangedHandler).toHaveBeenCalledWith(
        expect.arrayContaining([
          { userId: 'test-user', userName: 'Test User' },
          { userId: 'other-user', userName: 'Other User' },
        ])
      )
    })

    it('should handle storage events correctly', async () => {
      const languagesChangedHandler = vi.fn()
      const sttDataChangedHandler = vi.fn()
      manager.on('languagesChanged', languagesChangedHandler)
      manager.on('sttDataChanged', sttDataChangedHandler)

      // 模拟 storage 事件
      const mockClient = (AgoraRTM.RTM as any).mock.results[0].value
      const storageHandler = mockClient.addEventListener.mock.calls.find(
        (call: any) => call[0] === 'storage'
      )[1]

      // 模拟 UPDATE 事件
      storageHandler({
        channelName: 'test-channel',
        eventType: 'UPDATE',
        data: {
          metadata: {
            transcribe1: { value: '"en-US"' },
            translate1List: { value: '["zh-CN","ja-JP"]' },
            transcribe2: { value: '"zh-CN"' },
            translate2List: { value: '["en-US"]' },
            status: { value: '"start"' },
            taskId: { value: '"test-task-id"' },
          },
        },
      })

      expect(languagesChangedHandler).toHaveBeenCalledWith({
        transcribe1: 'en-US',
        translate1List: ['zh-CN', 'ja-JP'],
        transcribe2: 'zh-CN',
        translate2List: ['en-US'],
      })

      expect(sttDataChangedHandler).toHaveBeenCalledWith({
        status: 'start',
        taskId: 'test-task-id',
      })
    })
  })
})