import { NextRequest, NextResponse } from "next/server";
import { listPosts, createPost, getPostCount } from "@/lib/posts";
import { cleanExpired } from "@/lib/recycle";
import { getAuthFromRequest } from "@/lib/auth";

export async function GET(request: NextRequest) {
  try {
    cleanExpired();

    const user = getAuthFromRequest(request);
    const { searchParams } = request.nextUrl;
    const search = searchParams.get("search") || "";
    const page = parseInt(searchParams.get("page") || "1", 10);
    const perPage = parseInt(searchParams.get("perPage") || "20", 10);
    const includeDrafts = searchParams.get("includeDrafts") !== "false";

    // 管理员看所有文章，普通用户只看自己的
    const author = user?.role === "admin" ? undefined : user?.name;

    const result = listPosts({ search, page, perPage, includeDrafts, author });
    const totalCount = getPostCount();

    return NextResponse.json({ ...result, totalCount });
  } catch (error: unknown) {
    return NextResponse.json(
      { error: error instanceof Error ? error.message : "Unknown error" },
      { status: 500 }
    );
  }
}

export async function POST(request: NextRequest) {
  try {
    const user = getAuthFromRequest(request);
    const body = await request.json();
    const { frontMatter, content } = body;

    if (!frontMatter?.title || !frontMatter?.slug) {
      return NextResponse.json(
        { error: "Title and slug are required" },
        { status: 400 }
      );
    }

    // 自动设置作者为当前登录用户
    if (user) {
      frontMatter.author = user.name;
    }

    const dirPath = createPost(frontMatter, content || "");
    return NextResponse.json({ success: true, dirPath }, { status: 201 });
  } catch (error: unknown) {
    return NextResponse.json(
      { error: error instanceof Error ? error.message : "Unknown error" },
      { status: 500 }
    );
  }
}