import { NextResponse } from "next/server";
import { z } from "zod";

import { db } from "@/lib/db";

// get likes from user
export async function GET(request: Request) {
  const { searchParams } = new URL(request.url);
  const user_id = searchParams.get("user_id") || undefined;

  const userIdSchema = z.string().cuid();
  const zod = userIdSchema.safeParse(user_id);

  if (!zod.success) {
    return NextResponse.json(
      {
        message: "Invalid request body",
        error: zod.error.formErrors,
      }, { status: 400 },
    );
  }

  try {
    const gweets = await db.gweet.findMany({
      where: {
        likes: {
          some: {
            userId: user_id,
          },
        },
      },

      include: {
        author: true,
        media: true,
        likes: true,
        regweets: true,
        allComments: true,
      },
    });

    return NextResponse.json(gweets, { status: 200 });
  } catch (error: any) {
    return NextResponse.json(
      {
        message: "Something went wrong",
        error: error.message,
      }, { status: error.errorCode || 500 },
    );
  }
}

// like and dislike
export async function POST(request: Request) {
  const { gweet_id, user_id } = await request.json();

  const likeSchema = z
    .object({
      gweet_id: z.string().cuid(),
      user_id: z.string().cuid(),
    })
    .strict();

  const zod = likeSchema.safeParse({ gweet_id, user_id });

  if (!zod.success) {
    return NextResponse.json(
      {
        message: "Invalid request body",
        error: zod.error.formErrors,
      }, { status: 400 },
    );
  }

  try {
    const like = await db.like.findFirst({
      where: {
        gweetId: gweet_id,
        userId: user_id,
      },
    });

    if (like) {
      await db.like.delete({
        where: {
          id: like.id,
        },
      });

      return NextResponse.json({ message: "Gweet unliked" });
    } else {
      await db.like.create({
        data: {
          gweetId: gweet_id,
          userId: user_id,
        },
      });

      return NextResponse.json({ message: "Gweet liked" });
    }
  } catch (error: any) {
    return NextResponse.json({
      message: "Something went wrong",
      error: error.message,
    });
  }
}