import { describe, it, expect, beforeEach, vi } from 'vitest'
import axios from 'axios'
import { onboardingService } from '../onboarding.service'
import type { OnboardingRequest, OnboardingResponse, EmployeeStatusResponse } from '../../types/onboarding'

// Mock axios
vi.mock('axios', () => ({
  default: {
    post: vi.fn(),
    get: vi.fn(),
  },
}))
const mockedAxios = axios as unknown as {
  post: ReturnType<typeof vi.fn>
  get: ReturnType<typeof vi.fn>
}

describe('OnboardingService', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  describe('onboardEmployee', () => {
    it('should successfully onboard an employee', async () => {
      // Arrange
      const request: OnboardingRequest = {
        resume_id: 1,
        keycloak_user_id: '550e8400-e29b-41d4-a716-446655440000',
        keycloak_username: 'wang.ming',
        hire_date: '2026-02-21',
        departments: [
          {
            department_id: 9,
            position: '資深工程師',
            membership_type: 'permanent',
          },
        ],
        role_ids: [1, 2],
        storage_quota_gb: 20,
        email_quota_mb: 5120,
      }

      const mockResponse: OnboardingResponse = {
        message: 'Employee onboarded successfully',
        employee: {
          tenant_id: 1,
          seq_no: 1,
          tenant_emp_code: 'PWD0001',
          keycloak_user_id: '550e8400-e29b-41d4-a716-446655440000',
          keycloak_username: 'wang.ming',
          name: '王明',
          hire_date: '2026-02-21',
        },
        summary: {
          departments_assigned: 1,
          roles_assigned: 2,
          services_enabled: 5,
        },
      }

      mockedAxios.post.mockResolvedValueOnce({ data: mockResponse })

      // Act
      const result = await onboardingService.onboardEmployee(request)

      // Assert
      expect(mockedAxios.post).toHaveBeenCalledWith(
        'http://localhost:10181/api/v1/emp-lifecycle/onboard',
        request
      )
      expect(result).toEqual(mockResponse)
    })

    it('should throw error when API fails', async () => {
      // Arrange
      const request: OnboardingRequest = {
        resume_id: 999,
        keycloak_user_id: 'invalid-uuid',
        keycloak_username: 'test',
        hire_date: '2026-02-21',
        departments: [],
        role_ids: [],
      }

      const errorMessage = 'Resume ID 999 not found'
      mockedAxios.post.mockRejectedValueOnce({
        response: {
          data: { detail: errorMessage },
          status: 404,
        },
      })

      // Act & Assert
      await expect(
        onboardingService.onboardEmployee(request)
      ).rejects.toThrow()
    })
  })

  describe('getEmployeeStatus', () => {
    it('should fetch employee status successfully', async () => {
      // Arrange
      const tenantId = 1
      const seqNo = 1

      const mockResponse: EmployeeStatusResponse = {
        employee: {
          tenant_id: 1,
          seq_no: 1,
          tenant_emp_code: 'PWD0001',
          name: '王明',
          keycloak_user_id: '550e8400-e29b-41d4-a716-446655440000',
          keycloak_username: 'wang.ming',
          hire_date: '2026-02-21',
          resign_date: null,
          employment_status: 'active',
          storage_quota_gb: 20,
          email_quota_mb: 5120,
        },
        departments: [
          {
            department_id: 9,
            department_name: '玄鐵風能',
            position: '資深工程師',
            membership_type: 'permanent',
            joined_at: '2026-02-21T10:00:00',
          },
        ],
        roles: [
          {
            role_id: 1,
            role_name: 'HR管理員',
            role_code: 'HR_ADMIN',
            assigned_at: '2026-02-21T10:00:00',
          },
        ],
        services: [
          {
            service_id: 1,
            service_name: '單一簽入',
            service_code: 'SSO',
            quota_gb: null,
            quota_mb: null,
            enabled_at: '2026-02-21T10:00:00',
          },
        ],
      }

      mockedAxios.get.mockResolvedValueOnce({ data: mockResponse })

      // Act
      const result = await onboardingService.getEmployeeStatus(tenantId, seqNo)

      // Assert
      expect(mockedAxios.get).toHaveBeenCalledWith(
        `http://localhost:10181/api/v1/emp-lifecycle/${tenantId}/${seqNo}/status`
      )
      expect(result).toEqual(mockResponse)
    })

    it('should throw error when employee not found', async () => {
      // Arrange
      const tenantId = 1
      const seqNo = 999

      mockedAxios.get.mockRejectedValueOnce({
        response: {
          data: { detail: 'Employee not found' },
          status: 404,
        },
      })

      // Act & Assert
      await expect(
        onboardingService.getEmployeeStatus(tenantId, seqNo)
      ).rejects.toThrow()
    })
  })

  describe('offboardEmployee', () => {
    it('should successfully offboard an employee', async () => {
      // Arrange
      const tenantId = 1
      const seqNo = 1

      const mockResponse = {
        message: 'Employee offboarded successfully',
        employee: {
          tenant_emp_code: 'PWD0001',
          resign_date: '2026-02-21',
        },
        summary: {
          departments_removed: 1,
          roles_revoked: 2,
          services_disabled: 5,
        },
      }

      mockedAxios.post.mockResolvedValueOnce({ data: mockResponse })

      // Act
      const result = await onboardingService.offboardEmployee(tenantId, seqNo)

      // Assert
      expect(mockedAxios.post).toHaveBeenCalledWith(
        `http://localhost:10181/api/v1/emp-lifecycle/${tenantId}/${seqNo}/offboard`
      )
      expect(result).toEqual(mockResponse)
    })
  })
})