import request from '@/utils/http'

// ---------------------------------------------------------------------------
// 流程定义
// ---------------------------------------------------------------------------

export function fetchProcessDefList(params?: {
  page?: number
  pageSize?: number
  keyword?: string
  status?: string
}) {
  return request.get<{
    list: Api.Workflow.ProcessDefItem[]
    total: number
    page: number
    pageSize: number
    totalPages: number
  }>({
    url: '/web/admin/workflow/defs',
    params
  })
}

export function fetchCreateProcessDef(data: {
  processCode: string
  processName: string
  status?: string
  orderNum?: number
  remark?: string
}) {
  return request.post<Api.Workflow.ProcessDefItem>({
    url: '/web/admin/workflow/defs',
    data,
    showSuccessMessage: true
  })
}

export function fetchUpdateProcessDef(
  id: string,
  data: Partial<{
    processCode: string
    processName: string
    status: string
    orderNum: number
    remark: string
  }>
) {
  return request.put<Api.Workflow.ProcessDefItem>({
    url: `/web/admin/workflow/defs/${id}`,
    data,
    showSuccessMessage: true
  })
}

export function fetchDeleteProcessDef(id: string) {
  return request.del({
    url: `/web/admin/workflow/defs/${id}`,
    showSuccessMessage: true
  })
}

// ---------------------------------------------------------------------------
// 发布版本
// ---------------------------------------------------------------------------

export function fetchPublishVersion(
  defId: string,
  data: {
    graphJson: string
    nodes: Array<{
      nodeKey: string
      nodeType: string
      nodeName?: string | null
      configJson?: string | null
    }>
    transitions: Array<{
      fromNodeKey: string
      toNodeKey: string
      conditionExpr?: string | null
    }>
    remark?: string
  }
) {
  return request.post({
    url: `/web/admin/workflow/defs/${defId}/publish`,
    data
  })
}

export function fetchVersionList(defId: string) {
  return request.get<Api.Workflow.VersionItem[]>({
    url: `/web/admin/workflow/defs/${defId}/versions`
  })
}

// ---------------------------------------------------------------------------
// 设计器数据
// ---------------------------------------------------------------------------

export function fetchDesignerData(defId: string) {
  return request.get<Api.Workflow.DesignerData>({
    url: `/web/admin/workflow/defs/${defId}/designer`
  })
}

// ---------------------------------------------------------------------------
// 流程实例
// ---------------------------------------------------------------------------

export function fetchStartInstance(data: {
  processCode: string
  businessType?: string
  businessId?: string
  variables?: Record<string, any>
  callbackUrl?: string
}) {
  return request.post<{ instanceId: string }>({
    url: '/web/admin/workflow/instances',
    data
  })
}

export function fetchInstanceDetail(instanceId: string) {
  return request.get<Api.Workflow.InstanceDetail>({
    url: `/web/admin/workflow/instances/${instanceId}`
  })
}

// ---------------------------------------------------------------------------
// 任务办理
// ---------------------------------------------------------------------------

export function fetchPendingTasks(params?: { page?: number; pageSize?: number; keyword?: string }) {
  return request.get<{
    list: Api.Workflow.TaskItem[]
    total: number
    page: number
    pageSize: number
    totalPages: number
  }>({
    url: '/web/admin/workflow/tasks/pending',
    params
  })
}

export function fetchCompletedTasks(params?: {
  page?: number
  pageSize?: number
  keyword?: string
}) {
  return request.get<{
    list: Api.Workflow.TaskItem[]
    total: number
    page: number
    pageSize: number
    totalPages: number
  }>({
    url: '/web/admin/workflow/tasks/completed',
    params
  })
}

export function fetchApproveTask(taskId: string, data?: { commentText?: string }) {
  return request.post({
    url: `/web/admin/workflow/tasks/${taskId}/approve`,
    data,
    showSuccessMessage: true
  })
}

export function fetchRejectTask(taskId: string, data?: { commentText?: string }) {
  return request.post({
    url: `/web/admin/workflow/tasks/${taskId}/reject`,
    data,
    showSuccessMessage: true
  })
}

export function fetchMyInstances(params?: {
  page?: number
  pageSize?: number
  keyword?: string
  status?: string
}) {
  return request.get<{
    list: Api.Workflow.MyInstanceItem[]
    total: number
    page: number
    pageSize: number
    totalPages: number
  }>({
    url: '/web/admin/workflow/instances/my',
    params
  })
}

export function fetchBusinessAllTasks(businessType: string, businessId: string) {
  return request.get<Api.Workflow.BusinessAllTasks>({
    url: `/web/admin/workflow/instances/by-business/${businessType}/${businessId}`
  })
}