/**
 * 用户素材列表API
 * 
 * GET: 获取当前登录用户上传的所有素材
 * 
 * @created 2025-11-25
 * @api
 */

import { NextRequest, NextResponse } from 'next/server'
import { getServerSession } from 'next-auth'
import { authOptions } from '@/lib/auth'
import { prisma } from '@/lib/prisma'
import { rewriteMaterialStorageUrlsForClient } from '@/lib/url-rewrite'

function parseDisplayImages(value: string | null): string[] {
  if (!value) return []
  try {
    const parsed = JSON.parse(value)
    if (Array.isArray(parsed)) {
      return parsed.filter((item): item is string => typeof item === 'string' && item.trim().length > 0)
    }
  } catch (error) {
    console.warn('[UserMaterials] Failed to parse displayImages JSON:', error)
  }
  return value ? [value] : []
}

export async function GET(req: NextRequest) {
  try {
    const session = await getServerSession(authOptions)
    if (!session?.user?.id) {
      return NextResponse.json(
        { error: '未登录' },
        { status: 401 }
      )
    }

    const currentUserId = session.user.id

    const materials = await (prisma as any).material.findMany({
      where: {
        // 个人中心「我的素材」：
        // 1）我上传的：createdByUserId = 当前用户（新字段）；
        // 2）当前由我负责的：ownerType = 'USER' 且 ownerId = 当前用户；
        // 3）兜底兼容：userId = 当前用户（历史/遗留字段，且新上传目前也会写入）。
        OR: [
          { createdByUserId: currentUserId },
          { ownerType: 'USER', ownerId: currentUserId },
          { userId: currentUserId },
        ],
        deletedAt: null,
      } as any,
      select: {
        id: true,
        userId: true,
        productModel: true,
        previewUrl: true,
        displayImages: true,
        materialType: true,
        materialKind: true,
        categoryName: true,
        sceneName: true,
        renderer: true,
        downloadCount: true,
        likeCount: true,
        createdAt: true,
        isPremium: true,
        videoCoverUrl: true,
        videoPreview540Url: true,
        videoPreviewClipUrl: true,
        videoProcessingStatus: true,
        videoDuration: true,
        zipFileName: true,
        zipFileSize: true,
      },
      orderBy: { createdAt: 'desc' },
    })

    const formatted = materials.map((material: any) => {
      // 统一处理 BigInt 等前端无法直接消费的类型
      const safeZipFileSize =
        typeof material.zipFileSize === 'bigint'
          ? material.zipFileSize.toString()
          : material.zipFileSize ?? null

      const base = {
        ...material,
        zipFileSize: safeZipFileSize,
        displayImages: parseDisplayImages(material.displayImages as unknown as string | null),
      }

      // 统一修正存储相关 URL，避免 localhost/127.0.0.1 导致客户端 404
      return rewriteMaterialStorageUrlsForClient(base)
    })

    return NextResponse.json(formatted)
  } catch (error) {
    console.error('[UserMaterials] GET error:', error)
    return NextResponse.json(
      { error: '获取素材列表失败' },
      { status: 500 }
    )
  }
}