import { NextRequest, NextResponse } from "next/server";
import { db } from "@/lib/db";
import { systemSettings } from "@/lib/db/schema";
import { eq } from "drizzle-orm";
import { auth } from "@/app/(auth)/auth";

const SETTING_KEY = "starter_questions";
const DEFAULT_QUESTIONS = [
  // AI图片编辑
  "帮我优化这张产品图片，突出产品特点和卖点",
  "请美化这张商品图片，提升视觉吸引力",
  "帮我调整产品图片的色调和构图",
  // 市场分析
  "分析一下当前电商市场的热门趋势和消费者偏好",
  "帮我分析竞品的产品策略和定价",
  "请分析目标用户群体的消费习惯",
  // 文案优化
  "优化这段产品描述文案，让它更有吸引力和转化力",
  "帮我改写产品标题，提升点击率",
  "请优化商品详情页的文案结构",
  // 卖点优化
  "提炼这个产品的核心卖点，突出差异化优势",
  "帮我找出产品的独特价值主张",
  "请分析产品的竞争优势并提炼卖点",
  // 视频生成
  "帮我生成一个产品宣传视频的创意脚本",
  "请为这个产品设计视频营销方案",
  "帮我写一个产品演示视频的脚本",
];

// GET: 公开
export async function GET() {
  try {
    const [setting] = await db
      .select()
      .from(systemSettings)
      .where(eq(systemSettings.key, SETTING_KEY))
      .limit(1);

    let questions = DEFAULT_QUESTIONS;
    if (setting && Array.isArray(setting.value)) {
      questions = setting.value as string[];
    }

    return NextResponse.json(questions);
  } catch (error) {
    console.error("[Starter Questions API] Get error:", error);
    return NextResponse.json(DEFAULT_QUESTIONS); // 出错时返回默认值
  }
}

// PUT: 管理员
export async function PUT(request: NextRequest) {
  try {
    const session = await auth();
    if (session?.user?.type !== "admin") {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
    }

    const body = await request.json();
    if (!Array.isArray(body)) {
      return NextResponse.json({ error: "Invalid data format" }, { status: 400 });
    }

    // 查找是否存在
    const [existing] = await db
      .select()
      .from(systemSettings)
      .where(eq(systemSettings.key, SETTING_KEY))
      .limit(1);

    if (existing) {
      await db
        .update(systemSettings)
        .set({
          value: body,
          updatedAt: new Date(),
          updatedBy: session.user.id,
        })
        .where(eq(systemSettings.id, existing.id));
    } else {
      await db.insert(systemSettings).values({
        key: SETTING_KEY,
        value: body,
        updatedBy: session.user.id,
      });
    }

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error("[Starter Questions API] Update error:", error);
    return NextResponse.json({ error: "Failed to update" }, { status: 500 });
  }
}