import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
import { SttSdk } from '../../src/core/stt-sdk'
import { SttError } from '../../src/core/stt-error'

describe('SttSdk', () => {
  let sdk: SttSdk

  beforeEach(() => {
    sdk = new SttSdk()
  })

  afterEach(async () => {
    if (sdk.isInitialized) {
      await sdk.destroy()
    }
  })

  describe('initialize', () => {
    it('should initialize successfully with valid config', async () => {
      const config = { appId: 'test-app-id', certificate: 'test-certificate' }

      await sdk.initialize(config)

      expect(sdk.isInitialized).toBe(true)
      expect(sdk.config).toEqual(config)
    })

    it('should throw error when appId is missing', async () => {
      const config = { appId: '', certificate: 'test-certificate' }

      await expect(sdk.initialize(config)).rejects.toThrow(SttError)
      await expect(sdk.initialize(config)).rejects.toThrow('App ID is required')
    })

    it('should throw error when certificate is missing', async () => {
      const config = { appId: 'test-app-id', certificate: '' }

      await expect(sdk.initialize(config)).rejects.toThrow(SttError)
      await expect(sdk.initialize(config)).rejects.toThrow('Certificate is required')
    })

    it('should throw error when already initialized', async () => {
      const config = { appId: 'test-app-id', certificate: 'test-certificate' }

      await sdk.initialize(config)

      await expect(sdk.initialize(config)).rejects.toThrow(SttError)
      await expect(sdk.initialize(config)).rejects.toThrow('SDK is already initialized')
    })
  })

  describe('createSttManager', () => {
    it('should create STT manager when SDK is initialized', async () => {
      await sdk.initialize({ appId: 'test-app-id', certificate: 'test-certificate' })

      const manager = sdk.createSttManager()

      expect(manager).toBeDefined()
      expect(sdk.sttManagerCount).toBe(1)
    })

    it('should throw error when SDK is not initialized', () => {
      expect(() => sdk.createSttManager()).toThrow(SttError)
      expect(() => sdk.createSttManager()).toThrow(
        'SDK must be initialized before creating managers'
      )
    })
  })

  describe('createRtmManager', () => {
    it('should create RTM manager when SDK is initialized', async () => {
      await sdk.initialize({ appId: 'test-app-id', certificate: 'test-certificate' })

      const manager = sdk.createRtmManager()

      expect(manager).toBeDefined()
      expect(sdk.rtmManagerCount).toBe(1)
    })

    it('should throw error when SDK is not initialized', () => {
      expect(() => sdk.createRtmManager()).toThrow(SttError)
      expect(() => sdk.createRtmManager()).toThrow(
        'SDK must be initialized before creating managers'
      )
    })
  })

  describe('destroy', () => {
    it('should destroy SDK successfully', async () => {
      await sdk.initialize({ appId: 'test-app-id', certificate: 'test-certificate' })

      // 创建管理器以测试销毁功能
      sdk.createSttManager()
      sdk.createRtmManager()

      await sdk.destroy()

      expect(sdk.isInitialized).toBe(false)
      expect(sdk.config).toBeUndefined()
      expect(sdk.sttManagerCount).toBe(0)
      expect(sdk.rtmManagerCount).toBe(0)
    })

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

  describe('events', () => {
    it('should emit initialized event', async () => {
      const initializedHandler = vi.fn()
      sdk.on('initialized', initializedHandler)

      await sdk.initialize({ appId: 'test-app-id', certificate: 'test-certificate' })

      expect(initializedHandler).toHaveBeenCalledTimes(1)
    })

    it('should emit error event on initialization failure', async () => {
      const errorHandler = vi.fn()
      sdk.on('error', errorHandler)

      try {
        await sdk.initialize({ appId: '', certificate: 'test-certificate' })
      } catch (error) {
        // Expected to throw
      }

      expect(errorHandler).toHaveBeenCalledTimes(1)
      expect(errorHandler.mock.calls[0][0]).toBeInstanceOf(SttError)
    })

    it('should emit error event when certificate is missing', async () => {
      const errorHandler = vi.fn()
      sdk.on('error', errorHandler)

      try {
        await sdk.initialize({ appId: 'test-app-id', certificate: '' })
      } catch (error) {
        // Expected to throw
      }

      expect(errorHandler).toHaveBeenCalledTimes(1)
      expect(errorHandler.mock.calls[0][0]).toBeInstanceOf(SttError)
    })
  })
})