// src/stores/group.ts
import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import type { Group, User } from '@/types'
import { pb } from '@/api/pocketbase'
import { getUserGroups, getGroup, getGroupMembers } from '@/api/groups'

export const useGroupStore = defineStore('group', () => {
  // 状态
  const groups = ref<Group[]>([])
  const currentGroup = ref<Group | null>(null)
  const currentMembers = ref<User[]>([])
  const loading = ref(false)

  // 计算属性
  const currentGroupId = computed(() => currentGroup.value?.id || '')
  const isGroupOwner = computed(() => {
    return currentGroup.value?.owner === pb.authStore.model?.id
  })

  // 加载用户的群组列表
  async function loadGroups() {
    try {
      loading.value = true
      groups.value = await getUserGroups()
    } catch (error) {
      console.error('加载群组列表失败:', error)
    } finally {
      loading.value = false
    }
  }

  // 设置当前群组
  async function setCurrentGroup(groupId: string) {
    try {
      loading.value = true
      currentGroup.value = await getGroup(groupId)
      currentMembers.value = await getGroupMembers(groupId) as unknown as User[]
    } catch (error) {
      console.error('加载群组详情失败:', error)
      throw error
    } finally {
      loading.value = false
    }
  }

  // 清除当前群组
  function clearCurrentGroup() {
    currentGroup.value = null
    currentMembers.value = []
  }

  // 更新群组成员列表
  function updateMembers(members: User[]) {
    currentMembers.value = members
  }

  // 添加群组到列表
  function addGroup(group: Group) {
    groups.value.push(group)
  }

  // 从列表中移除群组
  function removeGroup(groupId: string) {
    const index = groups.value.findIndex(g => g.id === groupId)
    if (index !== -1) {
      groups.value.splice(index, 1)
    }
    if (currentGroup.value?.id === groupId) {
      clearCurrentGroup()
    }
  }

  return {
    groups,
    currentGroup,
    currentMembers,
    loading,
    currentGroupId,
    isGroupOwner,
    loadGroups,
    setCurrentGroup,
    clearCurrentGroup,
    updateMembers,
    addGroup,
    removeGroup
  }
})