/** @jest-environment node */

import { getServerSession } from 'next-auth'

import { POST } from '@/app/api/materials/[id]/assets/batch/route'
import {
  submitTaskDetailChange,
  TaskDetailChangeApprovalError,
} from '@/lib/task-detail-change-approval'

jest.mock('next-auth', () => ({ getServerSession: jest.fn() }))
jest.mock('@/lib/auth', () => ({ authOptions: {} }))
jest.mock('@/lib/task-detail-asset-edit', () => ({
  TaskDetailAssetEditError: class TaskDetailAssetEditError extends Error {
    statusCode: number
    constructor(message: string, statusCode = 400) {
      super(message)
      this.statusCode = statusCode
    }
  },
}))
jest.mock('@/lib/task-detail-change-approval', () => ({
  TaskDetailChangeApprovalError: class TaskDetailChangeApprovalError extends Error {
    statusCode: number
    constructor(message: string, statusCode = 400) {
      super(message)
      this.statusCode = statusCode
    }
  },
  submitTaskDetailChange: jest.fn(),
}))

const mockedSubmit = submitTaskDetailChange as jest.Mock

function requestWith(body: unknown) {
  return { json: async () => body } as any
}

describe('任务-详情批量单图编辑路由', () => {
  beforeEach(() => {
    jest.clearAllMocks()
  })

  test('未登录返回 401，不触发批量逻辑', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue(null)
    const response = await POST(
      requestWith({ operations: [{ kind: 'delete', assetId: 'a1' }] }),
      { params: { id: 'm1' } },
    )
    expect(response.status).toBe(401)
    expect(mockedSubmit).not.toHaveBeenCalled()
  })

  test('operations 为空数组返回 400', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1', role: 'ADMIN' } })
    const response = await POST(requestWith({ operations: [] }), { params: { id: 'm1' } })
    expect(response.status).toBe(400)
    expect(mockedSubmit).not.toHaveBeenCalled()
  })

  test('不支持的操作类型返回 400', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1' } })
    const response = await POST(
      requestWith({ operations: [{ kind: 'magic', assetId: 'a1' }] }),
      { params: { id: 'm1' } },
    )
    expect(response.status).toBe(400)
    expect(mockedSubmit).not.toHaveBeenCalled()
  })

  test('replace 缺少 uploadId 返回 400', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1' } })
    const response = await POST(
      requestWith({ operations: [{ kind: 'replace', assetId: 'a1' }] }),
      { params: { id: 'm1' } },
    )
    expect(response.status).toBe(400)
  })

  test('合法混合操作透传给批量引擎并返回结果', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1', role: 'ADMIN' } })
    mockedSubmit.mockResolvedValue({ mode: 'applied', data: { success: true, appliedCount: 3, entryCount: 7 } })

    const response = await POST(
      requestWith({
        operations: [
          { kind: 'delete', assetId: 'a1' },
          { kind: 'rename', assetId: 'a2', newFileName: '新名字.jpg' },
          { kind: 'replace', assetId: 'a3', uploadId: 'up-1' },
        ],
      }),
      { params: { id: 'm1' } },
    )

    expect(response.status).toBe(200)
    const payload = await response.json()
    expect(payload.data.appliedCount).toBe(3)
    expect(mockedSubmit).toHaveBeenCalledWith(
      'm1',
      { id: 'u1', role: 'ADMIN', isSuperAdmin: false },
      [
        { kind: 'delete', assetId: 'a1' },
        { kind: 'rename', assetId: 'a2', newFileName: '新名字.jpg' },
        { kind: 'replace', assetId: 'a3', uploadId: 'up-1' },
      ],
    )
  })

  test('业务错误透传状态码与文案', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1' } })
    mockedSubmit.mockRejectedValue(
      new TaskDetailChangeApprovalError('批量操作只支持同一分组（主图/SKU/详情）内的图片', 400),
    )

    const response = await POST(
      requestWith({ operations: [{ kind: 'delete', assetId: 'a1' }] }),
      { params: { id: 'm1' } },
    )
    expect(response.status).toBe(400)
    const payload = await response.json()
    expect(payload.error).toContain('同一分组')
  })

  test('未知异常返回 500 且不泄漏内部信息', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'u1' } })
    mockedSubmit.mockRejectedValue(new Error('internal detail'))

    const response = await POST(
      requestWith({ operations: [{ kind: 'delete', assetId: 'a1' }] }),
      { params: { id: 'm1' } },
    )
    expect(response.status).toBe(500)
    const payload = await response.json()
    expect(payload.error).not.toContain('internal detail')
  })
})