<?php

namespace common\modules\product\models;

use common\modules\product\helpers\ProductHelper;
use common\modules\product\models\Category;
use common\modules\product\models\CategoryName;
use common\modules\product\models\ProductImage;
use common\modules\product\models\ProductVariantType;
use common\modules\rubrication\models\TaxOption;
use common\modules\rubrication\models\TaxValueString;
use Yii;
use common\modules\product\models\Brand;
use common\modules\product\models\BrandName;
use common\modules\product\models\Product;
use common\modules\product\models\ProductVariant;
use common\modules\product\models\RemoteProducts;
use yii\base\Model;

class Import extends Model {
    public $file;
    public $type;

    public $errors = [];
    public $output = [];

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['type'], 'required'],
            [['type'], 'string'],
//            [['file'], 'safe'],
            [['file'], 'file', 'extensions' => 'csv'],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'file' => Yii::t('product', 'File'),
        ];
    }

    public function getType() {
        if (!$this->type) {
            $this->type = 'products';
        }
        return $this->type;
    }

    public function goPrices($from = 0, $limit = null) {
        set_time_limit(0);
        $new_products = $linked_products = 0;

        if ( !($handle = $this->getProductsFile('uploadFilePrices')) ) {
            $this->errors[] = 'File not found';
            return FALSE;
        }

        $filesize = filesize(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFileProducts'));

        if ($from) {
            fseek($handle, $from);
        }

        $j = 0;

        $is_utf = (preg_match('//u', file_get_contents(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFilePrices'), null, null, null, 1000000)));

        while (($data = fgetcsv ($handle, 10000, ";")) !== FALSE && (empty($limit) || $j++ < $limit))
        {
            foreach ($data as &$value)
            {
                if (!$is_utf) {
                    $value = iconv ('windows-1251', "UTF-8//TRANSLIT//IGNORE", $value);
                }
                $value = trim ($value);
            }

            // данные строк
            $modification_code = @$data[0];
            $price             = floatval(@$data[1]);
            $price_promo       = floatval(@$data[2]);
            $count             = intval(@$data[3]);
            $city_name         = @$data[4];
            $product_title     = @$data[5];

            if (empty ($modification_code)) {
                continue;
            }
            // товары в пути
            if (empty ($city_name))
            {
                $this->saveNotFoundRecord (
                    [$modification_code, $product_title],
                    Yii::getAlias('@uploadFilePricesAway')
                );

                $this->output[] = 'Товар '. $product_title . ' в пути';

                continue;
            }

            if ( ($productVariant = ProductVariant::find()->filterWhere(['sku' => trim($modification_code)])->one()) === null ) {
                // 'Нет даной модификации в базе';
                $this->saveNotFoundRecord (
                    [$modification_code, $product_title],
                    Yii::getAlias('@uploadFilePricesNoVariant')
                );

                $this->output[] = 'Для товара '. $product_title . ' не найдено соотвествие';

                continue;
            }

            $quantity = 0;

            // ===== Set stock ====
            if ( $city_name ) {
                if ( ($stock = Stock::find()->filterWhere(['ilike', 'name', trim($city_name)])->one()) === null ) {
                    // Create stock
                    $stock = new Stock();
                    $stock->name = trim($city_name);
                    $stock->save();
                }

                $productVariant->stocks[$stock->stock_id] = $count;
                $quantity = $quantity + $count;
            }

            if ($price_promo) {
                $productVariant->price_old = $price;
                $productVariant->price = $price_promo;
            } else {
                $productVariant->price = $price;
                $productVariant->price_old = $price_promo;
            }

            $productVariant->stock = $quantity;

            $productVariant->save();

            $this->output[] = '<font style="color:blue">Товар '. $product_title .' успешно сохранен</font>';
        }

        $result = [
            'end' => feof($handle),
            'from' => ftell($handle),
            'totalsize' => $filesize,
            'items' => $this->output,

        ];

        fclose ($handle);

        if ($result['end']) {
            unlink(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFilePrices'));
            $this->output[] = '<font style="color:green; font-weight: bold">Импорт цен успешно завершен!</font>';
        }

        return $result;
    }

    public function goProducts($from = 0, $limit = null) {
        set_time_limit(0);
        $new_products = $linked_products = 0;

        if ( !($handle = $this->getProductsFile('uploadFileProducts')) ) {
            $this->errors[] = 'File not found';
            return FALSE;
        }

        $filesize = filesize(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFileProducts'));

        if ($from) {
            fseek($handle, $from);
        }

        $j = 0;

        $is_utf = (preg_match('//u', file_get_contents(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFileProducts'), null, null, null, 1000000)));

        $result_items = [];

        while (($data = fgetcsv ($handle, 10000, ";")) !== FALSE && (empty($limit) || $j++ < $limit))
        {
            foreach ($data as &$value)
            {
                if (!$is_utf) {
                    $value = iconv ('windows-1251', "UTF-8//TRANSLIT//IGNORE", $value);
                }
                $value = trim ($value);
            }

            // будет всегда 19 элементов
            for ($i = 0; $i <= 18; $i++)
            {
                if (! isset ($data[$i]))
                {
                    $data[$i] = null;
                }
            }

            // 1  Группа (категория)
            $catalog_name = $data[0];
            if (empty ($catalog_name))
            {
                $result_items[] = "Не указана категория (строка $j)";
                continue;
            }

            // 2  Бренд
            $brand_name = $data[1];
            if (empty ($brand_name))
            {
                $result_items[] = "Не указан бренд (строка $j)";
                continue;
            }

            // 3  Название товара
            $product_name = $data[2];
            if (empty ($product_name))
            {
                $result_items[] = "Не указано наименование товара (строка $j)";
                continue;
            }

            // 4  Описание Укр
            $product_body_uk = $data[3];

            // 5  Описание Рус
            $product_body_ru = $data[4];

            // 6  Фильтр (через запятую)
            $filters = explode (',', $data[5]);

            // 7  Доп фильтр через запятую
            $filters_extra = explode (',', $data[6]);

            // 8  Пол череззапятую (мужской, женский, детский, унисекс)
            $gender = explode (',', $data[7]);

            // 9  Год
            $years = explode (',', $data[8]);

            // 11 Цена акция
            $product_cost_old = floatval($data[10]);

            // 10 Цена
            if ($product_cost_old) {
                $product_cost_old = floatval($data[9]);
                $product_cost = floatval($data[10]);
            }

            // 12 Акция
            $product_akciya = (bool)$data[11];

            // 13 Сопуд. Тов.
            $similar = explode (',', $data[12]);

            // 14 Новинки
            $product_new = (bool)$data[13];

            // 15 Топ продаж
            $product_top = (bool)$data[14];

            // 16 Сетка  Характеристик
            $feature = explode ('=', $data[15]);

            // 17 ВИДЕО КОД
            $product_video = $data[16];

            // 18 Галлерея фото
            if (trim($data[17])) {
                $fotos = explode (',', trim($data[17]));
            }

            // 19 Штрих код товара.
            // расшифровал - это модификации товара!

            $product_image = explode ('=', $data[18]);
            $product_image = @$product_image[3];

            if ( ($_product = Product::find()->filterWhere(['ilike', 'name', trim($product_name)])->one()) === null ) {
                $_product = new Product();
            }

            $is_new_product = empty($_product->product_id);

            // ==== Set category ====
            if ( ($category = CategoryName::find()->filterWhere(['ilike', 'value', trim($catalog_name)])->one()) === null ) {
                // Create category
                $category = new Category();
                $category->name = trim($catalog_name);
                $category->save();
            }
            $_product->categories = [$category->category_id];

            // ===== Set brand ====
            if ( $brand_name ) {
                if ( ($brand = BrandName::find()->filterWhere(['ilike', 'value', trim($brand_name)])->one()) !== null ) {
                    $_product->brand_id = $brand->brand_id;
                } else {
                    // Create brand
                    $brand = new Brand();
                    $brand->name = trim($brand_name);
                    $brand->save();
                    $_product->brand_id = $brand->brand_id;
                }
            }

            $_product->name = $product_name;
            $_product->video = $product_video;
            $_product->description = $product_body_ru;
            $_product->is_top = $product_top;
            $_product->akciya = $product_akciya;
            $_product->is_new = $product_new;

            if (!$_product->save()) {
                $result_items[] = 'Product #'. $_product->name .' not saved' . " (строка $j)";
                continue;
            }

            if (!empty($fotos)) {
                foreach($fotos as $foto) {
                    $source_image = Yii::getAlias('@uploadDir') . '/product_images/'. urlencode($foto);

                    if (file_exists($source_image)) {
                        if (($productImage = ProductImage::find()->andFilterWhere(['ilike', 'image', $foto])->andFilterWhere(['product_id' => $_product->product_id])->one()) === null) {
                            copy($source_image, Yii::getAlias('@productsDir') . "/" . $foto);
                            $productImage = new ProductImage();
                            $productImage->product_id = $_product->product_id;
                            $productImage->image = $foto;
                            $productImage->save();
                        }
                    }
                }
            }

            // нужно для проставления характеристик относящихся к модификациям
            $MOD_ARRAY = [];

            for ($i = 18; $i < count ($data); $i ++)
            {
                if (! empty ($data[$i]))
                {
                    $mod_arr    = explode ('=', $data[$i]);
                    $mod_art    = $mod_arr[0];
                    $mod_size   = $mod_arr[1];
                    $mod_color  = $mod_arr[2];
                    $mod_image  = $mod_arr[3];
                    $mod_cost   = floatval($product_cost);
                    $mod_old_cost = floatval($product_cost_old);

                    // Check product variant
                    if ( ($_productVariant = ProductVariant::find()->andFilterWhere(['ilike', 'sku', $mod_art])->andFilterWhere(['product_id' => $_product->product_id])->one()) === null ) {
                        $_productVariant = new ProductVariant();
                        $_productVariant->product_id = $_product->product_id;
                    }
                    $_productVariant->product_unit_id = 1;

                    $_productVariant->sku = $mod_art;
                    $_productVariant->price = $mod_cost;
                    $_productVariant->price_old = $mod_old_cost;
                    $_productVariant->stock = 1;

                    $product_variant_type_name = '';
                    if (! empty ($mod_color)) {
                        $product_variant_type_name = 'Цвет';
                        $_productVariant->name = $mod_color;
                    }
                    elseif (! empty ($mod_size)) {
                        $product_variant_type_name = 'Размер';
                        $_productVariant->name = $mod_size;
                    }

                    // ===== Set variant type ====
                    if ( $product_variant_type_name ) {
                        if ( ($product_variant_type = ProductVariantType::find()->filterWhere(['ilike', 'name', $product_variant_type_name])->one()) !== null ) {
                            $_productVariant->product_variant_type_id = $product_variant_type->product_variant_type_id;
                        } else {
                            $product_variant_type = new ProductVariantType();
                            $product_variant_type->name = $product_variant_type_name;
                            $product_variant_type->save();
                            $_productVariant->product_variant_type_id = $product_variant_type->product_variant_type_id;
                        }
                    }
                    $_productVariant->save(false);

                    $MOD_ARRAY[] = $_productVariant->product_variant_id;

                    if ($mod_image) {
                        $source_image = Yii::getAlias('@uploadDir') . '/product_images/'. urlencode($mod_image);
                        if (file_exists($source_image)) {
                            if (($variantImage = ProductImage::find()->andFilterWhere(['ilike', 'image', $mod_image])->andFilterWhere(['product_variant_id' => $_productVariant->product_variant_id])->one()) === null) {
                                copy($source_image, Yii::getAlias('@productsDir') . "/" . $mod_image);
                                $variantImage = new ProductImage();
                                $variantImage->product_id = $_product->product_id;
                                $variantImage->product_variant_id = $_productVariant->product_variant_id;
                                $variantImage->image = $mod_image;
                                $variantImage->save();
                            }
                        }
                    }
                }
            }

            $options = [];

            if (! empty ($filters)) {
                // Set Naznachenie (tax_group_id = 20)
                foreach($filters as $filter) {
                    $filter = trim($filter);
                    if (!$filter) {
                        continue;
                    }
                    if ( ($value = TaxValueString::find()->innerJoinWith('taxOption')->andFilterWhere(['ilike', 'value', $filter])->andFilterWhere(['tax_option.tax_group_id' => ProductHelper::PRODUCT_TAX_GROUP_ID_TARGET])->one()) === null ) {
                        // Create option
                        $option = new TaxOption();
                        $option->tax_group_id = 20;
                        $option->save();

                        $value = new TaxValueString();
                        $value->tax_option_id = $option->tax_option_id;
                        $value->value = $filter;
                        $value->save();

                        $option->default_value = $value->tax_value_id;
                        $option->save();
                    }
                    $options[] = $value->tax_option_id;
                }
            }

            if (! empty ($years)) {
                // Set God (tax_group_id = 21)
                foreach($years as $filter) {
                    $filter = trim($filter);
                    if (!$filter) {
                        continue;
                    }
                    if ( ($value = TaxValueString::find()->innerJoinWith('taxOption')->andFilterWhere(['ilike', 'value', $filter])->andFilterWhere(['tax_option.tax_group_id' => ProductHelper::PRODUCT_TAX_GROUP_ID_YEAR])->one()) === null ) {
                        // Create option
                        $option = new TaxOption();
                        $option->tax_group_id = 21;
                        $option->save();

                        $value = new TaxValueString();
                        $value->tax_option_id = $option->tax_option_id;
                        $value->value = $filter;
                        $value->save();

                        $option->default_value = $value->tax_value_id;
                        $option->save();
                    }
                    $options[] = $value->tax_option_id;
                }
            }

            if (! empty ($gender)) {
                // Set Pol (tax_group_id = 22)
                foreach($gender as $filter) {
                    $filter = trim($filter);
                    if (!$filter) {
                        continue;
                    }
                    if ( ($value = TaxValueString::find()->innerJoinWith('taxOption')->andFilterWhere(['ilike', 'value', $filter])->andFilterWhere(['tax_option.tax_group_id' => ProductHelper::PRODUCT_TAX_GROUP_ID_SEX])->one()) === null ) {
                        // Create option
                        $option = new TaxOption();
                        $option->tax_group_id = 22;
                        $option->save();

                        $value = new TaxValueString();
                        $value->tax_option_id = $option->tax_option_id;
                        $value->value = $filter;
                        $value->save();

                        $option->default_value = $value->tax_value_id;
                        $option->save();
                    }
                    $options[] = $value->tax_option_id;
                }
            }

            if (!empty($options)) {
                $_product->options = $options;
            }

            $_product->save();

            $result_items[] = "Product {$_product->name} #{$_product->product_id} saved (". ($is_new_product ? 'new product' : 'exists product') .")" . " (строка $j)";
        }

        $result = [
            'end' => feof($handle),
            'from' => ftell($handle),
            'totalsize' => $filesize,
            'items' => $result_items,

        ];

        fclose ($handle);

        if ($result['end']) {
            unlink(Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@uploadFileProducts'));
        }

        return $result;
    }

    private function getProductsFile($file_type) {
        $filename = Yii::getAlias('@uploadDir') .'/'. Yii::getAlias('@'. $file_type);
        if (!is_file($filename)) {
            $this->errors[] = "File $filename not found";
            return FALSE;
        }
        return fopen ($filename, 'r');
    }

    private function saveNotFoundRecord (array $line, $filename)
    {
        $str = implode (';', $line)."\n";
        $str = iconv ("UTF-8//TRANSLIT//IGNORE", "windows-1251", $str);

        $fg = fopen (Yii::getAlias('@uploadDir') .'/'. $filename, 'a+');
        fputs ($fg, $str);
        fclose ($fg);
    }
}