<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

/**
 * Represents one product ordered.
 *
 * @since 1.5.0
 */
class SupplyOrderDetailCore extends ObjectModel
{
    /**
     * @var int Supply order
     */
    public $id_supply_order;

    /**
     * @var int Product ordered
     */
    public $id_product;

    /**
     * @var int Product attribute ordered
     */
    public $id_product_attribute;

    /**
     * @var string Product reference
     */
    public $reference;

    /**
     * @var string Product supplier reference
     */
    public $supplier_reference;

    /**
     * @var int Product name
     */
    public $name;

    /**
     * @var int Product EAN13
     */
    public $ean13;

    /**
     * @var string Product ISBN
     */
    public $isbn;

    /**
     * @var string UPC
     */
    public $upc;

    /**
     * @var string MPN
     */
    public $mpn;

    /**
     * @var int Currency used to buy this particular product
     */
    public $id_currency;

    /**
     * @var float Exchange rate between and SupplyOrder::$id_ref_currency, at the time
     */
    public $exchange_rate;

    /**
     * @var float Unit price without discount, without tax
     */
    public $unit_price_te = 0;

    /**
     * @var int Quantity ordered
     */
    public $quantity_expected = 0;

    /**
     * @var int Quantity received
     */
    public $quantity_received = 0;

    /**
     * @var float this defines the price of the product, considering the number of units to buy.
     *            ($unit_price_te * $quantity), without discount, without tax
     */
    public $price_te = 0;

    /**
     * @var float Supplier discount rate for a given product
     */
    public $discount_rate = 0;

    /**
     * @var float Supplier discount value (($discount_rate / 100) *), without tax
     */
    public $discount_value_te = 0;

    /**
     * @var float ($price_te -), with discount, without tax
     */
    public $price_with_discount_te = 0;

    /**
     * @var int Tax rate for the given product
     */
    public $tax_rate = 0;

    /**
     * @var float Tax value for the given product
     */
    public $tax_value = 0;

    /**
     * @var float ($price_with_discount_te +)
     */
    public $price_ti = 0;

    /**
     * @var float Tax value of the given product after applying the global order discount (i.e. if SupplyOrder::discount_rate is set)
     */
    public $tax_value_with_order_discount = 0;

    /**
     * @var float This is like, considering the global order discount.
     *            (i.e. if SupplyOrder::discount_rate is set)
     */
    public $price_with_order_discount_te = 0;

    /**
     * @see ObjectModel::$definition
     */
    public static $definition = [
        'table' => 'supply_order_detail',
        'primary' => 'id_supply_order_detail',
        'fields' => [
            'id_supply_order' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true],
            'id_product' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true],
            'id_product_attribute' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true],
            'reference' => ['type' => self::TYPE_STRING, 'validate' => 'isReference'],
            'supplier_reference' => ['type' => self::TYPE_STRING, 'validate' => 'isReference'],
            'name' => ['type' => self::TYPE_STRING, 'validate' => 'isGenericName', 'required' => true],
            'ean13' => ['type' => self::TYPE_STRING, 'validate' => 'isEan13'],
            'isbn' => ['type' => self::TYPE_STRING, 'validate' => 'isIsbn'],
            'upc' => ['type' => self::TYPE_STRING, 'validate' => 'isUpc'],
            'mpn' => ['type' => self::TYPE_STRING, 'validate' => 'isMpn'],
            'id_currency' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true],
            'exchange_rate' => ['type' => self::TYPE_FLOAT, 'validate' => 'isFloat', 'required' => true],
            'unit_price_te' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'quantity_expected' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedInt', 'required' => true],
            'quantity_received' => ['type' => self::TYPE_INT, 'validate' => 'isUnsignedInt'],
            'price_te' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'discount_rate' => ['type' => self::TYPE_FLOAT, 'validate' => 'isFloat', 'required' => true],
            'discount_value_te' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'price_with_discount_te' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'tax_rate' => ['type' => self::TYPE_FLOAT, 'validate' => 'isFloat', 'required' => true],
            'tax_value' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'price_ti' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
            'tax_value_with_order_discount' => ['type' => self::TYPE_FLOAT, 'validate' => 'isFloat', 'required' => true],
            'price_with_order_discount_te' => ['type' => self::TYPE_FLOAT, 'validate' => 'isPrice', 'required' => true],
        ],
    ];

    /**
     * @see ObjectModel::$webserviceParameters
     */
    protected $webserviceParameters = [
        'objectsNodeName' => 'supply_order_details',
        'objectNodeName' => 'supply_order_detail',
        'fields' => [
            'id_supply_order' => ['xlink_resource' => 'supply_orders'],
            'id_product' => ['xlink_resource' => 'products'],
            'id_product_attribute' => ['xlink_resource' => 'combinations'],
        ],
        'hidden_fields' => [
            'id_currency',
        ],
    ];

    /**
     * @see ObjectModel::update()
     */
    public function update($null_values = false)
    {
        $this->calculatePrices();

        return parent::update($null_values);
    }

    /**
     * @see ObjectModel::add()
     */
    public function add($autodate = true, $null_values = false)
    {
        $this->calculatePrices();

        return parent::add($autodate, $null_values);
    }

    /**
     * Calculates all prices for this product based on its quantity and unit price
     * Applies discount if necessary
     * Calculates tax value, function of tax rate.
     */
    protected function calculatePrices()
    {
        // calculates entry price
        $this->price_te = Tools::ps_round((float) $this->unit_price_te * (int) $this->quantity_expected, 6);

        // calculates entry discount value
        if ($this->discount_rate != null && is_numeric($this->discount_rate) && $this->discount_rate > 0) {
            $this->discount_value_te = Tools::ps_round((float) $this->price_te * ($this->discount_rate / 100), 6);
        }

        // calculates entry price with discount
        $this->price_with_discount_te = Tools::ps_round($this->price_te - $this->discount_value_te, 6);

        // calculates tax value
        $this->tax_value = Tools::ps_round($this->price_with_discount_te * ((float) $this->tax_rate / 100), 6);
        $this->price_ti = Tools::ps_round($this->price_with_discount_te + $this->tax_value, 6);

        // defines default values for order discount fields
        $this->tax_value_with_order_discount = Tools::ps_round($this->tax_value, 6);
        $this->price_with_order_discount_te = Tools::ps_round($this->price_with_discount_te, 6);
    }

    /**
     * Applies a global order discount rate, for the current product (i.e detail)
     * Calls ObjectModel::update().
     *
     * @param float|int $discount_rate The discount rate in percent (Ex. 5 for 5 percents)
     */
    public function applyGlobalDiscount($discount_rate)
    {
        if ($discount_rate != null && is_numeric($discount_rate) && (float) $discount_rate > 0) {
            // calculates new price, with global order discount, tax ecluded
            $discount_value = $this->price_with_discount_te - (($this->price_with_discount_te * (float) $discount_rate) / 100);

            $this->price_with_order_discount_te = Tools::ps_round($discount_value, 6);

            // calculates new tax value, with global order discount
            $this->tax_value_with_order_discount = Tools::ps_round($this->price_with_order_discount_te * ((float) $this->tax_rate / 100), 6);

            parent::update();
        }
    }

    /**
     * @see ObjectModel::validateController()
     *
     * @param bool $htmlentities Optional
     *
     * @return array Errors, if any..
     */
    public function validateController($htmlentities = true)
    {
        $errors = [];

        /* required fields */
        $fields_required = $this->fieldsRequired;

        $objectName = $this->getObjectName();
        if (isset(self::$fieldsRequiredDatabase[$objectName])) {
            $fields_required = array_merge(
                $this->fieldsRequired,
                self::$fieldsRequiredDatabase[$objectName]
            );
        }

        foreach ($fields_required as $field) {
            if (($value = $this->{$field}) == false && (string) $value != '0') {
                if (!$this->id || $field != 'passwd') {
                    $errors[] = $this->trans(
                        '%s is required.',
                        [
                            '<b>' . SupplyOrderDetail::displayFieldName($field, get_class($this), $htmlentities) . '</b>',
                        ],
                        'Shop.Notifications.Error'
                    );
                }
            }
        }

        /* Checks maximum fields sizes */
        foreach ($this->fieldsSize as $field => $max_length) {
            $value = $this->{$field};
            if ($value && Tools::strlen($value) > $max_length) {
                $errors[] = $this->trans(
                    'The %1$s field is too long (%2$d chars max).',
                    [SupplyOrderDetail::displayFieldName($field, get_class($this), $htmlentities), $max_length],
                    'Shop.Notifications.Error'
                );
            }
        }

        /* Checks fields validity */
        foreach ($this->fieldsValidate as $field => $function) {
            if ($value = $this->{$field}) {
                if (!Validate::$function($value)) {
                    $errors[] = '<b>' . SupplyOrderDetail::displayFieldName($field, get_class($this), $htmlentities) . '</b> ' . $this->trans('is invalid.', [], 'Shop.Notifications.Error');
                } elseif ($field == 'passwd') {
                    if ($value = Tools::getValue($field)) {
                        $this->{$field} = Tools::hash($value);
                    } else {
                        $this->{$field} = $value;
                    }
                }
            }
        }

        if ($this->quantity_expected <= 0) {
            $errors[] = '<b>' . SupplyOrderDetail::displayFieldName('quantity_expected', get_class($this)) . '</b> ' . $this->trans('is invalid.', [], 'Shop.Notifications.Error');
        }

        if ($this->tax_rate < 0 || $this->tax_rate > 100) {
            $errors[] = '<b>' . SupplyOrderDetail::displayFieldName('tax_rate', get_class($this)) . '</b> ' . $this->trans('is invalid.', [], 'Shop.Notifications.Error');
        }

        if ($this->discount_rate < 0 || $this->discount_rate > 100) {
            $errors[] = '<b>' . SupplyOrderDetail::displayFieldName('discount_rate', get_class($this)) . '</b> ' . $this->trans('is invalid.', [], 'Shop.Notifications.Error');
        }

        return $errors;
    }

    /**
     * @see ObjectModel::hydrate()
     */
    public function hydrate(array $data, $id_lang = null)
    {
        $this->id_lang = $id_lang;
        if (isset($data[$this->def['primary']])) {
            $this->id = $data[$this->def['primary']];
        }
        foreach ($data as $key => $value) {
            if (array_key_exists($key, get_object_vars($this))) {
                // formats prices and floats
                if ($this->def['fields'][$key]['validate'] == 'isFloat' ||
                    $this->def['fields'][$key]['validate'] == 'isPrice') {
                    $value = Tools::ps_round($value, 6);
                }
                $this->$key = $value;
            }
        }
    }
}