import { onMounted, reactive, ref } from 'vue'
import { ElMessage, ElMessageBox } from 'element-plus'
import { auditCreatorApi, listCreatorDocumentsApi, pageCreatorsApi } from '@/api/admin/creator'

/** 与后端 CreatorService 的状态取值保持一致 */
export const CREATOR_STATUS = [
  { value: 'pending', label: '待审核', tag: 'warning' },
  { value: 'approved', label: '已通过', tag: 'success' },
  { value: 'rejected', label: '已驳回', tag: 'danger' },
  { value: 'frozen', label: '已冻结', tag: 'info' }
]

export const CREATOR_TYPE = [
  { value: 'INDIVIDUAL', label: '个人' },
  { value: 'COMPANY', label: '机构' }
]

export function creatorStatusMeta(status) {
  return (
    CREATOR_STATUS.find((item) => item.value === status) || { label: status || '-', tag: 'info' }
  )
}

export function creatorTypeText(type) {
  return CREATOR_TYPE.find((item) => item.value === type)?.label || type || '-'
}

export function useCreatorAudit() {
  const rows = ref([])
  const total = ref(0)
  const loading = ref(false)
  const keyword = ref('')
  const statusFilter = ref(undefined)
  const typeFilter = ref(undefined)
  const currentPage = ref(1)
  const pageSize = ref(10)

  const auditVisible = ref(false)
  const auditSaving = ref(false)
  const auditTarget = ref(null)
  const auditForm = reactive({ action: 'APPROVE', reason: '', rejectCode: '' })

  const documentsVisible = ref(false)
  const documentsLoading = ref(false)
  const documents = ref([])
  const documentsTarget = ref(null)

  async function load() {
    loading.value = true
    try {
      const res = await pageCreatorsApi({
        pageIndex: currentPage.value,
        pageSize: pageSize.value,
        keyword: keyword.value.trim() || undefined,
        status: statusFilter.value,
        type: typeFilter.value
      })
      rows.value = res.data?.list || []
      total.value = res.data?.total || 0
    } finally {
      loading.value = false
    }
  }

  function query() {
    currentPage.value = 1
    load()
  }

  function reset() {
    keyword.value = ''
    statusFilter.value = undefined
    typeFilter.value = undefined
    query()
  }

  function handleSizeChange() {
    currentPage.value = 1
    load()
  }

  async function openDocuments(row) {
    documentsTarget.value = row
    documentsVisible.value = true
    documentsLoading.value = true
    documents.value = []
    try {
      documents.value = (await listCreatorDocumentsApi(row.id)).data || []
    } finally {
      documentsLoading.value = false
    }
  }

  function openAudit(row, action = 'APPROVE') {
    auditTarget.value = row
    auditForm.action = action
    auditForm.reason = ''
    auditForm.rejectCode = ''
    auditVisible.value = true
  }

  async function confirmAudit() {
    const row = auditTarget.value
    if (!row) return
    if (auditForm.action === 'REJECT' && !auditForm.reason.trim()) {
      return ElMessage.warning('驳回必须填写原因')
    }
    auditSaving.value = true
    try {
      await auditCreatorApi(row.id, {
        action: auditForm.action,
        reason: auditForm.reason.trim(),
        rejectCode: auditForm.rejectCode.trim()
      })
      ElMessage.success('审核已提交')
      auditVisible.value = false
      await load()
    } finally {
      auditSaving.value = false
    }
  }

  /** 冻结是不可逆的运营动作，单独二次确认 */
  async function freeze(row) {
    try {
      await ElMessageBox.confirm(`冻结后「${row.name}」将无法提交内容，确认冻结？`, '冻结创作者', {
        confirmButtonText: '确认冻结',
        cancelButtonText: '取消',
        type: 'warning'
      })
    } catch {
      return
    }
    await auditCreatorApi(row.id, { action: 'FREEZE', reason: '运营冻结' })
    ElMessage.success('已冻结')
    await load()
  }

  onMounted(load)

  return {
    rows,
    total,
    loading,
    keyword,
    statusFilter,
    typeFilter,
    currentPage,
    pageSize,
    auditVisible,
    auditSaving,
    auditTarget,
    auditForm,
    documentsVisible,
    documentsLoading,
    documents,
    documentsTarget,
    load,
    query,
    reset,
    handleSizeChange,
    openDocuments,
    openAudit,
    confirmAudit,
    freeze
  }
}