<?php

/**
 * BudgetLimit.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\Casts\SeparateTimezoneCaster;
use FireflyIII\Handlers\Observer\BudgetLimitObserver;
use FireflyIII\Support\Models\ReturnsIntegerIdTrait;
use Illuminate\Auth\AuthenticationException;
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\Relations\MorphMany;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * Class BudgetLimit
 *
 * @property TransactionCurrency $transactionCurrency
 * @property Carbon              $start_date
 * @property null|Carbon         $end_date
 */
#[ObservedBy([BudgetLimitObserver::class])]
class BudgetLimit extends Model
{
    use ReturnsIntegerIdTrait;

    protected $fillable = ['budget_id', 'start_date', 'end_date', 'start_date_tz', 'end_date_tz', 'amount', 'transaction_currency_id', '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()) {
            $budgetLimitId = (int) $value;
            $budgetLimit   = self::where('budget_limits.id', $budgetLimitId)
                ->leftJoin('budgets', 'budgets.id', '=', 'budget_limits.budget_id')
                ->where('budgets.user_id', auth()->user()->id)
                ->first(['budget_limits.*'])
            ;
            if (null !== $budgetLimit) {
                return $budgetLimit;
            }
        }

        throw new AuthenticationException();
    }

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

    /**
     * Get all the notes.
     */
    public function notes(): MorphMany
    {
        return $this->morphMany(Note::class, 'noteable');
    }

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

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

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

    protected function casts(): array
    {
        return [
            'created_at'    => 'datetime',
            'updated_at'    => 'datetime',
            'start_date'    => SeparateTimezoneCaster::class,
            'end_date'      => SeparateTimezoneCaster::class,
            'auto_budget'   => 'boolean',
            'amount'        => 'string',
            'native_amount' => 'string',
        ];
    }

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