<?php
namespace App\Discounts;


use Illuminate\Support\Collection;
use Komma\KMS\Core\AbstractTranslatableModel;
use Komma\KMS\Core\Entities\DisplayNameInterface;
use Komma\KMS\Core\Entities\DisplayNameTrait;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Relations\HasMany;

/**
 * App\Discounts\Discount
 *
 * @property int $id
 * @property int $active
 * @property int $stop_processing
 * @property string|null $valid_from
 * @property string|null $valid_trough
 * @property int $sort_order
 * @property \Illuminate\Support\Carbon|null $created_at
 * @property \Illuminate\Support\Carbon|null $updated_at
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Discounts\DiscountAction[] $actions
 * @property-read int|null $actions_count
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Discounts\DiscountCondition[] $conditions
 * @property-read int|null $conditions_count
 * @property-read \App\Discounts\DiscountTranslation|null $translation
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Discounts\DiscountTranslation[] $translations
 * @property-read int|null $translations_count
 * @method static \Illuminate\Database\Eloquent\Builder|Discount newModelQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|Discount newQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|Discount query()
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereActive($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereCreatedAt($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereId($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereSortOrder($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereStopProcessing($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereUpdatedAt($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereValidFrom($value)
 * @method static \Illuminate\Database\Eloquent\Builder|Discount whereValidTrough($value)
 * @mixin \Eloquent
 */

class Discount extends AbstractTranslatableModel implements DisplayNameInterface
{
    protected $fillable = ['active', 'valid_from', 'valid_trough', 'stop_processing'];
    protected $discountable = null;

    //State tracking constants. Must match the states as defined in Model.js
    const NEW = 1;
    const PRISTINE = 2;
    const DIRTY = 3;
    const DELETED = 4;

    use DisplayNameTrait;

    /**
     * Gets the translation models for this model
     *
     * @return HasMany that resolves to AbstractTranslationModel instances
     */
    public function translations(): HasMany
    {
        return $this->hasMany(DiscountTranslation::class);
    }

    public function conditions(): HasMany
    {
        return $this->hasMany(DiscountCondition::class);
    }

    public function actions(): HasMany
    {
        return $this->hasMany(DiscountAction::class);
    }

    /**
     * Checks if the discount can be applied by looking at if it is active, between the valid_from and valid_trough days.
     * Not having valid_from and valid_trough results in skipping the date validation
     */
    public function isValidAndActive():bool
    {
        if($this->active == false) return false;

        $now = Carbon::now();

        if(!$this->valid_from && !$this->valid_trough) return true;

        if($now->gte(Carbon::parse($this->valid_from)) && $now->lte(Carbon::parse($this->valid_trough))) return true;

        return false;
    }
}