flnxi-Wu/app/api/category-fields/route.ts

/**
 * 分类字段配置 API
 *
 * 支持查询「哪些字段可用于分类管理」以及启用/停用指定字段
 * 这样管理字段无需回到模板编辑器逐一勾选。
 */

import { NextRequest, NextResponse } from 'next/server'
import { getServerSession } from 'next-auth'
import { authOptions } from '@/lib/auth'
import { prisma } from '@/lib/prisma'
import {
  getAvailableCategoryFields,
  getManagedCategoryFields,
  saveManagedCategoryFields,
} from '@/lib/category-fields'

export async function GET() {
  const session = await getServerSession(authOptions)
  if (!session || (session.user as any)?.role !== 'ADMIN') {
    return NextResponse.json({ error: '权限不足' }, { status: 403 })
  }

  const [managedFields, availableFields] = await Promise.all([
    getManagedCategoryFields(),
    getAvailableCategoryFields(),
  ])

  return NextResponse.json({
    managedFields,
    availableFields,
  })
}

export async function PATCH(req: NextRequest) {
  try {
    const session = await getServerSession(authOptions)
    if (!session || (session.user as any)?.role !== 'ADMIN') {
      return NextResponse.json({ error: '权限不足' }, { status: 403 })
    }

    const { fieldKey, enabled } = await req.json()
    if (typeof fieldKey !== 'string' || typeof enabled !== 'boolean') {
      return NextResponse.json(
        { error: '参数错误' },
        { status: 400 },
      )
    }

    const availableFields = await getAvailableCategoryFields()
    if (!availableFields.find((field) => field.key === fieldKey)) {
      return NextResponse.json(
        { error: '未找到该字段' },
        { status: 404 },
      )
    }

    const current = new Set(await getManagedCategoryFields())
    if (enabled) {
      current.add(fieldKey)
    } else {
      current.delete(fieldKey)
    }

    const updatedManagedFields = await saveManagedCategoryFields(Array.from(current))

    await prisma.uploadField.updateMany({
      where: {
        key: fieldKey,
        type: 'select',
      },
      data: {
        addToCategory: enabled,
      },
    })

    return NextResponse.json({
      managedFields: updatedManagedFields,
    })
  } catch (error) {
    console.error('Update category fields failed:', error)
    return NextResponse.json(
      { error: '更新失败' },
      { status: 500 },
    )
  }
}