<?php

namespace App\Http\Controllers;

use App\Models\Habit;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Carbon;

class HabitController extends Controller
{
    public function index(): JsonResponse
    {
        return response()->json(Habit::all()->toArray());
    }

    public function get(int $id): JsonResponse
    {
        return response()->json(Habit::find($id)->toArray());
    }

    public function create(Request $request): JsonResponse
    {
        $habit = Habit::create([
            'name' => $request->get('name'),
            'description' => $request->get('description'),
            'target_count' => $request->get('targetCount'),
            'completions' => [],
            'current_count' => 0
        ]);

        return response()->json($habit->toArray());
    }

    public function currentCountUpdate(Request $request, int $id): JsonResponse
    {
        $habit = Habit::find($id);
        $completions = $habit->completions ?? [];
        $date = Carbon::now()->startOfDay()->format(Carbon::DEFAULT_TO_STRING_FORMAT);

        if (in_array($date, $completions)) {
            return response()->json(['message' => 'Привычка уже отмечена сегодня'], Response::HTTP_UNPROCESSABLE_ENTITY);
        }

        $habit->current_count += 1;
        $completions[] = Carbon::now()->startOfDay()->format(Carbon::DEFAULT_TO_STRING_FORMAT);
        $habit->completions = $completions;

        if ($habit->current_count >= $habit->target_count) {
            $habit->is_completed = true;
        }
        $habit->save();

        return response()->json($habit->toArray());
    }
}