import { describe, it, expect, beforeEach, vi } from 'vitest'

// Taro.request 由各用例设置返回值（vi.hoisted 保证 mock 提升后仍可引用）
const mockRequest = vi.hoisted(() => vi.fn())
vi.mock('@tarojs/taro', () => ({ default: { request: mockRequest } }))

// client 依赖 store 取 token；此处只读，不触发 401 流程
vi.mock('@/store', () => ({
  store: { getState: () => ({ auth: { token: 'unit-token' } }), dispatch: vi.fn() }
}))

import { request } from '@/http/client'
import { ApiError, BusinessError } from '@/http/errors'

const okBody = <T>(content: T) => ({
  statusCode: 200,
  data: { Code: '200', Message: '', Content: content, RecordCount: 0, PageIndex: 0, PageSize: 0 }
})

beforeEach(() => {
  mockRequest.mockReset()
})

describe('client envelope 解析', () => {
  it('Code=200 时解包返回 Content', async () => {
    mockRequest.mockResolvedValue(okBody({ name: '张三' }))
    const res = await request.get<{ name: string }>('/demo')
    expect(res).toEqual({ name: '张三' })
    // GET 参数经 data 透传（Taro 运行时序列化为 query string）
    expect(mockRequest.mock.calls[0][0].data).toBeUndefined()
  })

  it('GET 参数放入 data 字段', async () => {
    mockRequest.mockResolvedValue(okBody(null))
    await request.get('/demo', { page: 1 })
    expect(mockRequest.mock.calls[0][0].data).toEqual({ page: 1 })
  })

  it("Code='500' 抛 BusinessError（message + 字符串 code）", async () => {
    mockRequest.mockResolvedValue({
      statusCode: 200,
      data: { Code: '500', Message: '手机号已绑定', Content: null }
    })
    await expect(request.get('/demo')).rejects.toMatchObject({
      name: 'BusinessError',
      message: '手机号已绑定',
      code: '500'
    })
    await expect(request.get('/demo')).rejects.toBeInstanceOf(BusinessError)
  })

  it('HTTP 404 抛 ApiError 并带 statusCode', async () => {
    mockRequest.mockResolvedValue({ statusCode: 404, data: 'Not Found' })
    await expect(request.get('/demo')).rejects.toMatchObject({
      name: 'ApiError',
      message: 'HTTP 404',
      statusCode: 404
    })
  })

  it('Taro.request 异常（断网等）抛 ApiError', async () => {
    mockRequest.mockRejectedValue(new Error('request:fail timeout'))
    await expect(request.get('/demo')).rejects.toMatchObject({
      name: 'ApiError',
      message: 'request:fail timeout'
    })
  })

  it('需鉴权请求注入 Bearer token 头', async () => {
    mockRequest.mockResolvedValue(okBody(null))
    await request.get('/demo')
    expect(mockRequest.mock.calls[0][0].header.Authorization).toBe('Bearer unit-token')
  })

  it('needAuth: false 时不注入 Authorization', async () => {
    mockRequest.mockResolvedValue(okBody(null))
    await request.post('/demo', {}, { needAuth: false })
    expect(mockRequest.mock.calls[0][0].header.Authorization).toBeUndefined()
  })

  it('BASE_URL 拼接：请求 url = BASE_URL + path', async () => {
    mockRequest.mockResolvedValue(okBody(null))
    await request.get('/thirdPlatform/wxDevLogin/miniapp/login')
    expect(mockRequest.mock.calls[0][0].url).toMatch(/\/api\/biz\/thirdPlatform\/wxDevLogin\/miniapp\/login$/)
  })
})