WunschBackend/app/Http/Controllers/OwnWishController.php

<?php

namespace App\Http\Controllers;

use App\Models\User;
use App\Models\Wish;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class OwnWishController extends Controller
{
    // *ONLY* for an users own wishes!!!
    function OwnWishes(Request $request) {
        return Wish::where("owner_id", $request->user()->id)
            ->get()
            ->makeHidden(["claimed_by"]);
    }

    function CreateWish(Request $request) {
        $validator = Validator::make($request->all(), [
            "wish" => "required|max:400",
        ]);

        if($validator->fails()) {
            return response()->json($validator->errors(), 400);
        }

        $newWish = new Wish([
            "wish" => $request->input("wish"),
            "owner_id" => $request->user()->id,
            "claimed_by" => 0,
        ]);
        $newWish->save();

        return response()->json($newWish, 200);
    }

    function DeleteWish(Request $request, Wish $wish)
    {
        if ($wish->owner_id !== $request->user()->id) {
            return response()->json("Nicht dein Wunsch... warum versuchst du das überhaupt?", 403);
        }

        if ($wish->claimed_by !== 0) {
            return response()->json("Hmm...lass mal lieber. Das hat schon jemand reserviert.", 403);
        }

        $wish->delete();
        return response()->json("Erfolreich gelöscht.", 200);
    }

    function ClaimedWishes(Request $request) {
        return $request->user()->claimed;
    }
}