/**
 * 一次性脚本：为「当前已在已启用运营位里的课程」批量设置水印为 globe.americas.fill
 * 使用：npx ts-node scripts/backfill-banner-watermark.ts
 */

import { PrismaClient } from '@prisma/client';

const prisma = new PrismaClient();

const WATERMARK_ICON = 'globe.americas.fill';

async function main() {
  // 1. 已启用、未删的运营位中的 courseId（去重）
  const rows = await prisma.operationalBannerCourse.findMany({
    where: {
      banner: { deletedAt: null, isEnabled: true },
    },
    select: { courseId: true },
    distinct: ['courseId'],
  });
  const courseIds = rows.map((r) => r.courseId);

  if (courseIds.length === 0) {
    console.log('[BackfillBannerWatermark] 当前没有运营位关联的课程，跳过');
    return;
  }

  console.log(`[BackfillBannerWatermark] 运营位课程数: ${courseIds.length}, courseIds:`, courseIds);

  // 2. 批量更新 watermark_icon
  const result = await prisma.course.updateMany({
    where: { id: { in: courseIds } },
    data: { watermarkIcon: WATERMARK_ICON },
  });

  console.log(`[BackfillBannerWatermark] 已更新 ${result.count} 门课程的水印为 ${WATERMARK_ICON}`);
}

main()
  .catch((e) => {
    console.error(e);
    process.exit(1);
  })
  .finally(() => prisma.$disconnect());