import { query, queryOne, run } from "@/lib/db";
import { cookies } from "next/headers";
import { verifyToken } from "@/app/api/auth/[...nextauth]/route";

export const dynamic = "force-dynamic"; // Disable caching

// GET to list admin users
export async function GET(request) {
  try {
    // Verify the user is authenticated
    const cookieStore = cookies();
    const sessionToken = cookieStore.get("next-auth.session-token")?.value;

    if (!sessionToken) {
      return Response.json({ error: "Unauthorized" }, { status: 401 });
    }

    const userData = verifyToken(sessionToken);
    if (!userData) {
      return Response.json({ error: "Invalid session" }, { status: 401 });
    }

    // Get all admin users
    const adminUsers = await query(
      "SELECT id, username, email FROM users WHERE is_admin = 1"
    );

    return Response.json({ users: adminUsers });
  } catch (error) {
    console.error("Error fetching admin users:", error);
    return Response.json(
      { error: "Failed to fetch admin users" },
      { status: 500 }
    );
  }
}

// DELETE to remove admin privileges from a user
export async function DELETE(request) {
  try {
    // Verify the user is authenticated
    const cookieStore = cookies();
    const sessionToken = cookieStore.get("next-auth.session-token")?.value;

    if (!sessionToken) {
      return Response.json({ error: "Unauthorized" }, { status: 401 });
    }

    const userData = verifyToken(sessionToken);
    if (!userData) {
      return Response.json({ error: "Invalid session" }, { status: 401 });
    }

    // Get the user ID from the URL or request body
    const { searchParams } = new URL(request.url);
    const userId = searchParams.get("userId");

    if (!userId) {
      return Response.json({ error: "User ID is required" }, { status: 400 });
    }

    // Remove admin privileges by setting is_admin to 0
    await run("UPDATE users SET is_admin = 0 WHERE id = ?", [userId]);

    return Response.json({
      success: true,
      message: "Admin privileges removed successfully",
    });
  } catch (error) {
    console.error("Error removing admin privileges:", error);
    return Response.json(
      { error: "Failed to remove admin privileges" },
      { status: 500 }
    );
  }
}