import { onMounted, ref } from 'vue'
import { storeToRefs } from 'pinia'
import { useAuthStore, useSlidesStore } from '@/store'
import dataSyncService from '@/services/dataSyncService'
import api from '@/services'
import message from '@/utils/message'

export default () => {
  const authStore = useAuthStore()
  const slidesStore = useSlidesStore()
  const { title } = storeToRefs(slidesStore)
  
  const pptList = ref<any[]>([])
  const loading = ref(false)
  const showPPTManager = ref(false)

  // 获取PPT列表
  const refreshPPTList = async () => {
    if (!authStore.isLoggedIn) return
    
    loading.value = true
    try {
      pptList.value = await dataSyncService.getPPTList()
    } catch (error) {
      message.error('获取PPT列表失败')
    } finally {
      loading.value = false
    }
  }

  // 创建新PPT
  const createNewPPT = async (title: string = '新建演示文稿') => {
    try {
      loading.value = true
      const pptId = await dataSyncService.createNewPPT(title)
      if (pptId) {
        message.success('创建成功')
        await refreshPPTList()
        return pptId
      }
    } catch (error) {
      message.error('创建失败')
      throw error
    } finally {
      loading.value = false
    }
  }

  // 加载PPT
  const loadPPT = async (pptId: string) => {
    try {
      loading.value = true
      await dataSyncService.loadPPT(pptId)
      message.success('PPT加载成功')
    } catch (error) {
      message.error('PPT加载失败')
      throw error
    } finally {
      loading.value = false
    }
  }

  // 删除PPT
  const deletePPT = async (pptId: string) => {
    try {
      loading.value = true
      await dataSyncService.deletePPT(pptId)
      message.success('删除成功')
      await refreshPPTList()
    } catch (error) {
      message.error('删除失败')
      throw error
    } finally {
      loading.value = false
    }
  }

  // 保存当前PPT
  const saveCurrentPPT = async () => {
    try {
      const success = await dataSyncService.manualSave()
      if (success) {
        message.success('保存成功')
      } else {
        message.error('保存失败')
      }
      return success
    } catch (error) {
      message.error('保存失败')
      return false
    }
  }

  // 生成分享链接
  const generateShareLinks = async (slideIndex = 0) => {
    try {
      const links = await dataSyncService.generateShareLink(slideIndex)
      message.success('分享链接生成成功')
      return links
    } catch (error) {
      message.error('生成分享链接失败')
      throw error
    }
  }

  // 复制PPT
  const copyPPT = async (pptId: string, newTitle: string) => {
    try {
      loading.value = true
      const response = await api.copyPPT(pptId, newTitle)
      message.success('复制成功')
      await refreshPPTList()
      return response.pptId
    } catch (error) {
      message.error('复制失败')
      throw error
    } finally {
      loading.value = false
    }
  }

  // 组件挂载时初始化
  onMounted(() => {
    if (authStore.isLoggedIn) {
      refreshPPTList()
    }
  })

  return {
    pptList,
    loading,
    showPPTManager,
    refreshPPTList,
    createNewPPT,
    loadPPT,
    deletePPT,
    saveCurrentPPT,
    generateShareLinks,
    copyPPT
  }
}