// Author: fruit.com.cn

import { onMounted, ref } from 'vue'
import { getCreatorDashboardApi } from '@/api/admin/creatorCenter'
import { useCreatorAccess } from './useCreatorAccess'

/**
 * 指标展示配置：key 与后端 /admin/creator-center/dashboard 的字段一一对应，
 * 不在前端编字段；口径见后端 CreatorDashboardService 注释与 docs/api-phase1.md「2.10」。
 */
export const DASHBOARD_GROUPS = [
  {
    key: 'drama',
    title: '我的作品',
    metrics: [
      { key: 'total', label: '作品总数' },
      { key: 'draft', label: '草稿' },
      { key: 'reviewing', label: '审核中' },
      { key: 'approved', label: '待发布' },
      { key: 'published', label: '已上线' },
      { key: 'offline', label: '已下线' },
      { key: 'episodeTotal', label: '分集总数' },
      { key: 'episodeWithMedia', label: '有片源分集' }
    ]
  },
  {
    key: 'playback',
    title: '播放',
    metrics: [
      { key: 'viewTotal', label: '累计观看' },
      { key: 'playTotal', label: '累计播放' },
      { key: 'watchedDramas', label: '看过我的剧（用户×剧）' },
      { key: 'finishedDramas', label: '其中标记完播' },
      { key: 'finishRate', label: '完播率' },
      { key: 'playEvents7d', label: '近 7 天播放流水' },
      { key: 'playEventsTotal', label: '播放流水总量' },
      { key: 'finishEvents', label: '完播事件' }
    ]
  },
  {
    key: 'interaction',
    title: '互动',
    metrics: [
      { key: 'favoriteTotal', label: '收藏' },
      { key: 'commentTotal', label: '评论' },
      { key: 'commentPending', label: '待审评论' }
    ]
  },
  {
    key: 'revenue',
    title: '解锁收入',
    metrics: [
      { key: 'unlockCount', label: '解锁笔数' },
      { key: 'coinIncome', label: '金币收入' },
      { key: 'coinIncome7d', label: '近 7 天金币收入' },
      { key: 'paidOrderAmount', label: '法币收入金额' }
    ]
  }
]

export function useCreatorDashboard() {
  const { ensureAccess } = useCreatorAccess()
  const loading = ref(false)
  const board = ref(null)
  const lastUpdated = ref('')

  async function load() {
    loading.value = true
    try {
      board.value = (await getCreatorDashboardApi()).data || null
      lastUpdated.value = new Date().toLocaleString()
    } finally {
      loading.value = false
    }
  }

  /** 取不到的指标后端给 null，这里显示「暂无数据源」而不是 0 */
  function display(value) {
    if (value === null || value === undefined) return '暂无数据源'
    if (typeof value === 'number' && !Number.isInteger(value)) return value.toFixed(3)
    return value
  }

  function groupValue(groupKey, metricKey) {
    return board.value?.[groupKey]?.[metricKey]
  }

  onMounted(async () => {
    if (!(await ensureAccess())) return
    await load()
  })

  return { loading, board, lastUpdated, load, display, groupValue }
}