<?php

/**
 * AvailableBudget.php
 * Copyright (c) 2019 james@firefly-iii.org
 *
 * This file is part of Firefly III (https://github.com/firefly-iii).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
declare(strict_types=1);

namespace FireflyIII\Models;

use Carbon\Carbon;
use FireflyIII\Handlers\Observer\AvailableBudgetObserver;
use FireflyIII\Support\Models\ReturnsIntegerIdTrait;
use FireflyIII\Support\Models\ReturnsIntegerUserIdTrait;
use FireflyIII\User;
use Illuminate\Database\Eloquent\Attributes\ObservedBy;
use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * @property User                $user
 * @property TransactionCurrency $transactionCurrency
 */
#[ObservedBy([AvailableBudgetObserver::class])]
class AvailableBudget extends Model
{
    use ReturnsIntegerIdTrait;
    use ReturnsIntegerUserIdTrait;
    use SoftDeletes;

    protected $fillable = [
        'user_id',
        'user_group_id',
        'transaction_currency_id',
        'amount',
        'start_date',
        'end_date',
        'start_date_tz',
        'end_date_tz',
        'native_amount',
    ];

    /**
     * Route binder. Converts the key in the URL to the specified object (or throw 404).
     *
     * @throws NotFoundHttpException
     */
    public static function routeBinder(self|string $value): self
    {
        if ($value instanceof self) {
            $value = (int) $value->id;
        }
        if (auth()->check()) {
            $availableBudgetId = (int) $value;

            /** @var User $user */
            $user              = auth()->user();

            /** @var null|AvailableBudget $availableBudget */
            $availableBudget   = $user->availableBudgets()->find($availableBudgetId);
            if (null !== $availableBudget) {
                return $availableBudget;
            }
        }

        throw new NotFoundHttpException();
    }

    public function transactionCurrency(): BelongsTo
    {
        return $this->belongsTo(TransactionCurrency::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    protected function amount(): Attribute
    {
        return Attribute::make(get: static fn ($value): string => (string) $value);
    }

    protected function casts(): array
    {
        return [
            'created_at'              => 'datetime',
            'updated_at'              => 'datetime',
            'deleted_at'              => 'datetime',
            'start_date'              => 'date',
            'end_date'                => 'date',
            'transaction_currency_id' => 'int',
            'amount'                  => 'string',
            'native_amount'           => 'string',
            'user_id'                 => 'integer',
            'user_group_id'           => 'integer',
        ];
    }

    protected function endDate(): Attribute
    {
        return Attribute::make(
            get: static fn (string $value): Carbon => Carbon::parse($value),
            set: static fn (Carbon $value): string => $value->format('Y-m-d')
        );
    }

    protected function startDate(): Attribute
    {
        return Attribute::make(
            get: static fn (string $value): Carbon => Carbon::parse($value),
            set: static fn (Carbon $value): string => $value->format('Y-m-d')
        );
    }

    protected function transactionCurrencyId(): Attribute
    {
        return Attribute::make(get: static fn ($value): int => (int) $value);
    }
}
