<?php

namespace App\Http\Controllers;

use App\Models\Events;
use App\Models\Task;
use App\Models\User;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Log;

class TasksController extends Controller
{
    public function create(Request $request): JsonResponse {

        if(Gate::denies('create', Task::class)) {
            return response()->json(["message" => "Can't create task"], 403);
        }

        try {

            $event = Events::find($request["event_id"]);

            $event->tasks()->create([
               "name" => $request["name"],
               "description" => $request["description"],
               "start" => $request["start"],
               "end" => $request["end"],
               "location" => $request["location"],
               "max_participants" => $request["max_participants"],
            ]);


            return response()->json(['message' => "Task created"], 200);

        } catch(\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }
    }

    public function assignSelf(Request $request): JsonResponse {

        try {

            $task = Task::find($request["task_id"]);

            if($task->max_participants = $task->users()->count()) {
                return response()->json(["message" => "Max participants reached"], 403);
            }

            $task->users()->attach($request->user()->id);
            return response()->json(['message' => "Task assigned"], 200);

        } catch (\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }
    }

    public function assignUser(request $request, int $id): JsonResponse {

        if(Gate::denies('assignOther', Task::class)) {
            return response()->json(["message" => "Can't create task"], 403);
        }

        try {

            $task = Task::find($request["task_id"]);

            if($task->max_participants === $task->users()->count()) {
                return response()->json(["message" => "Max participants reached"], 403);
            }

            $user = User::find($id);

            if($user) $task->users()->attach($id);

            return response()->json(['message' => "Task assigned"], 200);

        } catch(\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }
    }

    public function getEventTasks(Request $request, int $id): JsonResponse {

        try {

            $event = Events::find($id);

            return response()->json(['data' => $event->tasks()->get()]);

        } catch(\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }

    }

    public function deleteTask(Request $request, int $id): JsonResponse {

        if(Gate::denies('delete', Task::class)) {
            return response()->json(["message" => "Can't delete task"], 403);
        }

        try {

            $task = Task::find($id);
            $task->delete();
            return response()->json(['message' => "Task deleted"], 200);

        } catch(\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }
    }

    public function update(Request $request, int $id): JsonResponse {

        if(Gate::denies('update', Task::class)) {
            return response()->json(["message" => "Forbidden"], 403);
        }

        try {

            $task = Task::find($id);
            $task->name = $request["name"];
            $task->description = $request["description"];
            $task->start = $request["start"];
            $task->end = $request["end"];
            $task->location = $request["location"];
            $task->max_participants = $request["max_participants"];
            $task->save();

            return response()->json(['message' => "Task updated"], 200);

        } catch (\Exception $e) {
            Log::info($e->getMessage());
            return response()->json(['message' => "Server error"], 500);
        }
    }
}