// src/stores/memory.ts
import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import type { Memory } from '@/types'
import {
  listMemories,
  uploadMemory,
  deleteMemory,
  getGroupStorageUsed,
  getGroupStorageLimit
} from '@/api/memories'

export const useMemoryStore = defineStore('memory', () => {
  const memories = ref<Memory[]>([])
  const storageUsed = ref(0)
  const storageLimit = ref(getGroupStorageLimit())
  const loading = ref(false)

  // 计算属性：已用/总容量百分比
  const storagePercent = computed(() => {
    if (storageLimit.value === 0) return 0
    return Math.round((storageUsed.value / storageLimit.value) * 10000) / 100
  })

  // 加载记忆列表
  async function loadMemories(groupId: string, fileType?: string) {
    try {
      loading.value = true
      const result = await listMemories(groupId, { fileType })
      memories.value = result.items
      // 同时刷新存储用量
      storageUsed.value = await getGroupStorageUsed(groupId)
    } catch (error) {
      console.error('加载记忆列表失败:', error)
    } finally {
      loading.value = false
    }
  }

  // 上传记忆文件
  async function upload(groupId: string, file: File, meta?: { title?: string; description?: string; tags?: string[] }) {
    try {
      loading.value = true
      await uploadMemory(groupId, file, meta)
      // 上传后刷新列表和容量
      await loadMemories(groupId)
    } catch (error) {
      console.error('上传记忆失败:', error)
      throw error
    } finally {
      loading.value = false
    }
  }

  // 删除记忆
  async function remove(memoryId: string, groupId: string) {
    try {
      await deleteMemory(memoryId)
      // 从本地列表中移除
      const index = memories.value.findIndex(m => m.id === memoryId)
      if (index !== -1) {
        memories.value.splice(index, 1)
      }
      // 刷新容量
      storageUsed.value = await getGroupStorageUsed(groupId)
    } catch (error) {
      console.error('删除记忆失败:', error)
      throw error
    }
  }

  return {
    memories,
    storageUsed,
    storageLimit,
    loading,
    storagePercent,
    loadMemories,
    upload,
    remove
  }
})