import { NextResponse } from "next/server";
import { z } from "zod";
import { prisma } from "@/lib/prisma";
import { getSessionFromRequest } from "@/lib/auth-helpers";
import { hash } from "bcryptjs";

const createRoomSchema = z.object({
  name: z.string().min(1).max(255),
  lobbyEnabled: z.boolean().optional().default(true),
  webinarMode: z.boolean().optional().default(false),
  pin: z.string().min(4).max(20).optional(),
});

export async function POST(req: Request) {
  const session = await getSessionFromRequest(req);
  if (!session) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const user = await prisma.user.findUnique({ where: { id: session.user.id } });
  if (!user || (user.role !== "HOST" && user.role !== "ADMIN")) {
    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
  }

  const body = await req.json();
  const parsed = createRoomSchema.safeParse(body);
  if (!parsed.success) {
    return NextResponse.json({ error: parsed.error.message }, { status: 400 });
  }

  const { name, lobbyEnabled, webinarMode, pin } = parsed.data;
  const pinHash = pin ? await hash(pin, 10) : null;

  const room = await prisma.room.create({
    data: {
      name,
      lobbyEnabled,
      webinarMode,
      pinHash,
      hostId: user.id,
    },
  });

  return NextResponse.json(room, { status: 201 });
}

export async function GET(req: Request) {
  const session = await getSessionFromRequest(req);
  if (!session) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const user = await prisma.user.findUnique({ where: { id: session.user.id } });
  if (!user || (user.role !== "HOST" && user.role !== "ADMIN")) {
    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
  }

  const where = user.role === "ADMIN" ? {} : { hostId: user.id };
  const rooms = await prisma.room.findMany({
    where,
    orderBy: { createdAt: "desc" },
    select: {
      id: true,
      name: true,
      code: true,
      status: true,
      lobbyEnabled: true,
      webinarMode: true,
      isLocked: true,
      createdAt: true,
      startedAt: true,
      endedAt: true,
    },
  });

  return NextResponse.json(rooms);
}