import { api } from '@/utils/request'
import type {
  PaginatedData,
  OperationLogRecord,
  OperationLogFilters,
} from '@/types/api'

export type { OperationLogRecord }

interface UserLookup {
  id: number
  username: string
}

export const useOperationLogStore = defineStore('operationLog', () => {
  const logs = ref<OperationLogRecord[]>([])
  const loading = ref(false)
  const pagination = reactive({
    page: 1,
    per_page: 20,
    total: 0,
  })
  const filters = reactive<OperationLogFilters>({
    user_id: undefined,
    action: undefined,
    target_type: undefined,
    created_at_range: null,
  })

  const users = ref<UserLookup[]>([])
  const userMap = computed(
    () => new Map(users.value.map((u) => [u.id, u.username])),
  )

  async function loadLookups() {
    try {
      const data = await api.get<PaginatedData<UserLookup>>('/api/v1/users', {
        per_page: 200,
      })
      users.value = data.items
    } catch (err: unknown) {
      console.warn('加载用户列表失败', err)
    }
  }

  async function fetchLogs() {
    loading.value = true
    try {
      const data = await api.get<PaginatedData<OperationLogRecord>>(
        '/api/v1/logs/operations',
        {
          page: pagination.page,
          per_page: pagination.per_page,
          user_id: filters.user_id || undefined,
          action: filters.action || undefined,
          target_type: filters.target_type || undefined,
          created_at_from: filters.created_at_range?.[0] || undefined,
          created_at_to: filters.created_at_range?.[1] || undefined,
        },
      )
      logs.value = data.items
      pagination.total = data.total
      pagination.page = data.page
    } catch (err: unknown) {
      logs.value = []
      pagination.total = 0
      const msg = err instanceof Error ? err.message : '获取操作日志列表失败'
      message.error(msg)
    } finally {
      loading.value = false
    }
  }

  function resetFilters() {
    filters.user_id = undefined
    filters.action = undefined
    filters.target_type = undefined
    filters.created_at_range = null
    pagination.page = 1
  }

  return {
    logs,
    loading,
    pagination,
    filters,
    users,
    userMap,
    loadLookups,
    fetchLogs,
    resetFilters,
  }
})