import assert from 'node:assert/strict'

import {
  AI_APPLICATION_ACTION_SAVE_DRAFT,
  AI_APPLICATION_ACTION_SUBMIT,
  runAiApplicationPreviewAction
} from '../src/services/aiApplicationPreviewActions.js'

async function testSubmitActionUsesFastPreviewEndpoint() {
  let capturedUrl = ''
  let capturedOptions = null

  global.fetch = async (url, options) => {
    capturedUrl = String(url)
    capturedOptions = options
    return {
      ok: true,
      async json() {
        return {
          status: 'succeeded',
          result: {
            draft_payload: {
              claim_id: 'claim-fast-submit',
              claim_no: 'AP-20260620-FAST',
              status: 'submitted',
              approval_stage: '直属领导审批'
            }
          }
        }
      }
    }
  }

  await runAiApplicationPreviewAction({
    actionType: AI_APPLICATION_ACTION_SUBMIT,
    applicationPreview: {
      fields: {
        applicationType: '差旅费用申请',
        time: '2026-07-01 至 2026-07-03',
        location: '北京',
        reason: '项目实施',
        days: '3天',
        transportMode: '火车',
        amount: '1000元'
      }
    },
    currentUser: { username: 'zhangsan@example.com', name: '张三' },
    conversationId: 'conversation-fast-submit'
  })

  assert.equal(capturedUrl, '/api/v1/reimbursements/application-preview-action')
  assert.equal(capturedOptions.method, 'POST')
  const body = JSON.parse(capturedOptions.body)
  assert.equal(body.context_json.session_type, 'application')
  assert.equal(body.context_json.application_stage, 'expense_application')
  assert.equal(body.context_json.application_preview.fields.transportMode, '火车')
}

async function testSaveDraftActionUsesFastPreviewEndpoint() {
  let capturedUrl = ''
  let capturedOptions = null

  global.fetch = async (url, options) => {
    capturedUrl = String(url)
    capturedOptions = options
    return {
      ok: true,
      async json() {
        return {
          status: 'succeeded',
          result: {
            draft_payload: {
              claim_id: 'claim-fast-draft',
              claim_no: 'AP-20260620-DRAFT',
              status: 'draft',
              approval_stage: '待提交'
            }
          }
        }
      }
    }
  }

  await runAiApplicationPreviewAction({
    actionType: AI_APPLICATION_ACTION_SAVE_DRAFT,
    applicationPreview: { fields: { reason: '项目实施' } },
    currentUser: { username: 'zhangsan@example.com', name: '张三' }
  })

  assert.equal(capturedUrl, '/api/v1/reimbursements/application-preview-action')
  assert.equal(capturedOptions.method, 'POST')
  const body = JSON.parse(capturedOptions.body)
  assert.equal(body.context_json.application_action, 'save_draft')
  assert.equal(body.context_json.application_save_mode, true)
  assert.equal(body.context_json.application_stage, 'expense_application')
}

async function testEditDraftActionCarriesClaimAndEditableFields() {
  let capturedOptions = null

  global.fetch = async (_url, options) => {
    capturedOptions = options
    return {
      ok: true,
      async json() {
        return {
          status: 'succeeded',
          result: {
            draft_payload: {
              claim_id: 'claim-edit-application',
              claim_no: 'AP-20260620-EDIT',
              status: 'draft',
              approval_stage: '待提交'
            }
          }
        }
      }
    }
  }

  await runAiApplicationPreviewAction({
    actionType: AI_APPLICATION_ACTION_SAVE_DRAFT,
    applicationPreview: {
      applicationEditMode: true,
      editableFields: ['reason', 'time', 'location', 'transportMode'],
      fields: {
        applicationType: '差旅费用申请',
        time: '2026-07-01 至 2026-07-03',
        location: '北京',
        reason: '项目实施',
        days: '3天',
        transportMode: '火车',
        amount: '1000元'
      }
    },
    currentUser: { username: 'zhangsan@example.com', name: '张三' },
    draftPayload: {
      claim_id: 'claim-edit-application',
      claim_no: 'AP-20260620-EDIT',
      status: 'returned'
    }
  })

  const body = JSON.parse(capturedOptions.body)
  assert.equal(body.context_json.application_edit_claim_id, 'claim-edit-application')
  assert.equal(body.context_json.application_edit_mode, true)
  assert.deepEqual(body.context_json.application_editable_fields, ['reason', 'time', 'location', 'transportMode'])
}

async function run() {
  await testSubmitActionUsesFastPreviewEndpoint()
  await testSaveDraftActionUsesFastPreviewEndpoint()
  await testEditDraftActionCarriesClaimAndEditableFields()
  console.log('ai-application-preview-actions tests passed')
}

run().catch((error) => {
  console.error(error)
  process.exit(1)
})