import { defineStore } from 'pinia'
import { ref } from 'vue'
import { wikiApi } from '@/api/index'

export interface WikiKB {
  id: number
  name: string
  description: string
  agentId: number | null
  configContent: string
  sourceDirectory: string | null
  status: string
  pageCount: number
  rawCount: number
  createTime: string
  updateTime: string
}

export interface WikiRawMaterial {
  id: number
  kbId: number
  title: string
  sourceType: string
  fileSize: number
  processingStatus: string
  lastProcessedAt: string | null
  errorMessage: string | null
  createTime: string
}

export interface WikiPage {
  id: number
  kbId: number
  slug: string
  title: string
  content: string | null
  summary: string
  outgoingLinks: string
  sourceRawIds: string
  version: number
  lastUpdatedBy: string
  createTime: string
  updateTime: string
}

export const useWikiStore = defineStore('wiki', () => {
  const knowledgeBases = ref<WikiKB[]>([])
  const currentKB = ref<WikiKB | null>(null)
  const rawMaterials = ref<WikiRawMaterial[]>([])
  const pages = ref<WikiPage[]>([])
  const currentPage = ref<WikiPage | null>(null)
  const loading = ref(false)

  async function fetchKnowledgeBases() {
    loading.value = true
    try {
      const res: any = await wikiApi.listKBs()
      knowledgeBases.value = res.data || []
    } catch (e) {
      console.error('Failed to fetch knowledge bases', e)
    } finally {
      loading.value = false
    }
  }

  async function selectKB(id: number) {
    const res: any = await wikiApi.getKB(id)
    currentKB.value = res.data || res
    await Promise.all([fetchRawMaterials(id), fetchPages(id)])
  }

  async function createKB(data: { name: string; description?: string; agentId?: number }) {
    const res: any = await wikiApi.createKB(data)
    const kb = res.data || res
    knowledgeBases.value.unshift(kb)
    return kb
  }

  async function deleteKB(id: number) {
    await wikiApi.deleteKB(id)
    knowledgeBases.value = knowledgeBases.value.filter((kb) => kb.id !== id)
    if (currentKB.value?.id === id) {
      currentKB.value = null
      rawMaterials.value = []
      pages.value = []
    }
  }

  async function fetchRawMaterials(kbId: number) {
    const res: any = await wikiApi.listRaw(kbId)
    rawMaterials.value = res.data || []
  }

  async function fetchPages(kbId: number) {
    const res: any = await wikiApi.listPages(kbId)
    pages.value = res.data || []
  }

  async function loadPage(kbId: number, slug: string) {
    const res: any = await wikiApi.getPage(kbId, slug)
    currentPage.value = res.data || res
  }

  async function addRawText(kbId: number, title: string, content: string) {
    const res: any = await wikiApi.addRawText(kbId, { title, content })
    const raw = res.data || res
    rawMaterials.value.unshift(raw)
    return raw
  }

  async function uploadRawFile(kbId: number, file: File) {
    const formData = new FormData()
    formData.append('file', file)
    const res: any = await wikiApi.uploadRaw(kbId, formData)
    const raw = res.data || res
    rawMaterials.value.unshift(raw)
    return raw
  }

  async function scanDirectory(kbId: number) {
    const res: any = await wikiApi.scanDirectory(kbId)
    const result = res.data || res
    // 扫描后刷新材料列表
    await fetchRawMaterials(kbId)
    return result
  }

  return {
    knowledgeBases,
    currentKB,
    rawMaterials,
    pages,
    currentPage,
    loading,
    fetchKnowledgeBases,
    selectKB,
    createKB,
    deleteKB,
    fetchRawMaterials,
    fetchPages,
    loadPage,
    addRawText,
    uploadRawFile,
    scanDirectory,
  }
})