<?php

/* --------------------------------------------------------------
   Category.inc.php 2018-10-23
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2016 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   -------------------------------------------------------------- 
*/

MainFactory::load_class('CategoryInterface');

/**
 * Class Category
 *
 * This class represents a shop category which is not persisted yet.
 *
 * @category   System
 * @package    Category
 * @subpackage Entities
 */
class Category implements CategoryInterface
{
    /**
     * Contains if category is active or not.
     *
     * @var bool
     */
    protected $active = false;
    
    
    /**
     * Parent ID of the Category.
     *
     * @var int
     */
    protected $parentId = 0;
    
    
    /**
     * Sort order value.
     *
     * @var int
     */
    protected $sortOrder = 0;
    
    
    /**
     * Date time when the category was added.
     *
     * @var DateTime
     */
    protected $dateAdded;
    
    
    /**
     * Date time when the category was modified last.
     *
     * @var DateTime
     */
    protected $lastModified;
    
    
    /**
     * Category settings.
     *
     * @var CategorySettingsInterface
     */
    protected $settings;
    
    
    /**
     * Names of the category.
     *
     * @var array
     */
    protected $names = [];
    
    
    /**
     * Heading Titles of the category.
     *
     * @var array
     */
    protected $headingTitles = [];
    
    
    /**
     * Description of the category.
     *
     * @var array
     */
    protected $descriptions = [];
    
    
    /**
     * Bottom description of the category.
     *
     * @var array
     */
    protected $descriptions_bottom = [];
    
    
    /**
     * Meta title of the category.
     *
     * @var array
     */
    protected $metaTitles = [];
    
    
    /**
     * Meta description of the category.
     *
     * @var array
     */
    protected $metaDescriptions = [];
    
    
    /**
     * Meta keywords of the category.
     *
     * @var array
     */
    protected $metaKeywords = [];
    
    
    /**
     * Url keywords of the category.
     *
     * @var array
     */
    protected $urlKeywords = [];
    
    
    /**
     * URL rewrites.
     *
     * @var UrlRewriteCollection
     */
    protected $urlRewrites;
    
    
    /**
     * Path to an image file.
     *
     * @var string
     */
    protected $image = '';
    
    
    /**
     * Path to an OpenGraph image file.
     *
     * @var string
     */
    protected $openGraphImage = '';
    
    
    /**
     * Alt texts of the image.
     *
     * @var array
     */
    protected $altTexts = [];
    
    
    /**
     * Path to an icon file.
     *
     * @var string
     */
    protected $icon = '';
    
    
    /**
     * Addon values.
     *
     * @var EditableKeyValueCollection
     */
    protected $addonValues;
    
    
    /**
     * Category constructor.
     *
     * @param CategorySettingsInterface $settings The category settings.
     */
    public function __construct(CategorySettingsInterface $settings)
    {
        $this->settings     = $settings;
        $this->dateAdded    = new DateTime();
        $this->lastModified = new DateTime();
        $this->addonValues  = MainFactory::create('EditableKeyValueCollection', []);
        $this->urlRewrites  = MainFactory::create('UrlRewriteCollection', []);
    }
    
    
    /**
     * Checks if the category is active or not.
     *
     * @return bool
     */
    public function isActive()
    {
        return $this->active;
    }
    
    
    /**
     * Sets whether category is active or not.
     *
     * @param BoolType $status Category active or not?
     *
     * @return Category Same instance for chained method calls.
     */
    public function setActive(BoolType $status)
    {
        $this->active = $status->asBool();
        
        return $this;
    }
    
    
    /**
     * Returns the ID of the parent category.
     *
     * @return int The ID of the parent category
     */
    public function getParentId()
    {
        return $this->parentId;
    }
    
    
    /**
     * Sets the parent ID of the category.
     *
     * @param IdType $categoryId The parent ID.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setParentId(IdType $categoryId)
    {
        $this->parentId = $categoryId->asInt();
        
        return $this;
    }
    
    
    /**
     * Returns the sort order value.
     *
     * @return int Sort order value.
     */
    public function getSortOrder()
    {
        return $this->sortOrder;
    }
    
    
    /**
     * Sets the sort order to the given value.
     *
     * @param IntType $sortOrder Order value.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setSortOrder(IntType $sortOrder)
    {
        $this->sortOrder = $sortOrder->asInt();
        
        return $this;
    }
    
    
    /**
     * Returns the datetime when the category was added.
     *
     * @return DateTime
     */
    public function getAddedDateTime()
    {
        return $this->dateAdded;
    }
    
    
    /**
     * Sets the datetime when the category was added.
     *
     * @param DateTime $added Datetime of when the category has been added.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setAddedDateTime(DateTime $added)
    {
        $this->dateAdded = $added;
        
        return $this;
    }
    
    
    /**
     * Returns the datetime when the category was modified last.
     *
     * @return DateTime
     */
    public function getLastModifiedDateTime()
    {
        return $this->lastModified;
    }
    
    
    /**
     * Sets the date time when the category was modified last.
     *
     * @param DateTime $modified Datetime of when the category has been lastly modified.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setLastModifiedDateTime(DateTime $modified)
    {
        $this->lastModified = $modified;
        
        return $this;
    }
    
    
    /**
     * Returns the settings of the category.
     *
     * @return CategorySettingsInterface
     */
    public function getSettings()
    {
        return $this->settings;
    }
    
    
    /**
     * Returns the name of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getName(LanguageCode $language)
    {
        return (string)$this->names[(string)$language];
    }
    
    
    /**
     * Sets the name of the category for the language with the provided language code.
     *
     * @param StringType   $text     Category name.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setName(StringType $text, LanguageCode $language)
    {
        $this->names[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the heading title of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getHeadingTitle(LanguageCode $language)
    {
        return (string)$this->headingTitles[(string)$language];
    }
    
    
    /**
     * Sets the heading title of the category for the language with the provided language code.
     *
     * @param StringType   $text     Heading title of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setHeadingTitle(StringType $text, LanguageCode $language)
    {
        $this->headingTitles[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the description of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getDescription(LanguageCode $language)
    {
        return (string)$this->descriptions[(string)$language];
    }
    
    
    /**
     * Sets the description of the category for the language with the provided language code.
     *
     * @param StringType   $text     Description of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setDescription(StringType $text, LanguageCode $language)
    {
        $this->descriptions[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the meta title of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getMetaTitle(LanguageCode $language)
    {
        return (string)$this->metaTitles[(string)$language];
    }
    
    
    /**
     * Sets the meta title of the category for the language with the provided language code.
     *
     * @param StringType   $text     Meta title for the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setMetaTitle(StringType $text, LanguageCode $language)
    {
        $this->metaTitles[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the meta title of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getMetaDescription(LanguageCode $language)
    {
        return (string)$this->metaDescriptions[(string)$language];
    }
    
    
    /**
     * Sets the meta title of the category for the language with the provided language code.
     *
     * @param StringType   $text     Meta title of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setMetaDescription(StringType $text, LanguageCode $language)
    {
        $this->metaDescriptions[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the meta keywords of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getMetaKeywords(LanguageCode $language)
    {
        return (string)$this->metaKeywords[(string)$language];
    }
    
    
    /**
     * Sets the meta keywords of the category for the language with the provided language code.
     *
     * @param StringType   $text     Meta keywords of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setMetaKeywords(StringType $text, LanguageCode $language)
    {
        $this->metaKeywords[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the url keywords of the category in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getUrlKeywords(LanguageCode $language)
    {
        return (string)$this->urlKeywords[(string)$language];
    }
    
    
    /**
     * Sets the url keywords of the category for the language with the provided language code.
     *
     * @param StringType   $text     URL keywords of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setUrlKeywords(StringType $text, LanguageCode $language)
    {
        $this->urlKeywords[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Get URL rewrite
     *
     * Returns the URL rewrite of the category, depending on the provided language code.
     *
     * @param LanguageCode $language The language code of the URL rewrite to be return.
     *
     * @return UrlRewrite The URL rewrite of the category.
     * @throws InvalidArgumentException if the language code is not valid.
     *
     */
    public function getUrlRewrite(LanguageCode $language)
    {
        return $this->urlRewrites->getValue($language->asString());
    }
    
    
    /**
     * Get URL rewrites
     *
     * Returns the URL rewrites of the category.
     *
     * @return UrlRewriteCollection The URL rewrites of the category.
     */
    public function getUrlRewrites()
    {
        return $this->urlRewrites;
    }
    
    
    /**
     * Set URL rewrite
     *
     * Sets the URL rewrite of the category for the provided language code.
     *
     * @param UrlRewrite   $urlRewrite The URL rewrite instance.
     * @param LanguageCode $language   The language code for the URL keywords.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setUrlRewrite(UrlRewrite $urlRewrite, LanguageCode $language)
    {
        $this->urlRewrites->setValue($language->asString(), $urlRewrite);
        
        return $this;
    }
    
    
    /**
     * Set URL rewrites
     *
     * Sets the URL rewrites of the category.
     *
     * @param UrlRewriteCollection $urlRewrites The URL rewrites.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setUrlRewrites(UrlRewriteCollection $urlRewrites)
    {
        $this->urlRewrites = $urlRewrites;
        
        return $this;
    }
    
    
    /**
     * Returns the image filename of the category.
     *
     * @return string
     */
    public function getImage()
    {
        return $this->image;
    }
    
    
    /**
     * Sets the image filename of the category.
     *
     * @param StringType $imageFile Category image file.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setImage(StringType $imageFile)
    {
        $this->image = $imageFile->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the OpenGraph image filename of the category.
     *
     * @return string
     */
    public function getOpenGraphImage()
    {
        return $this->openGraphImage;
    }
    
    
    /**
     * Sets the OpenGraph image filename of the category.
     *
     * @param StringType $imageFile Category image file.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setOpenGraphImage(StringType $imageFile)
    {
        $this->openGraphImage = $imageFile->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the alternative text of the image in the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string
     */
    public function getImageAltText(LanguageCode $language)
    {
        return (string)$this->altTexts[(string)$language];
    }
    
    
    /**
     * Set the alternative text of the image for the language with the provided language code.
     *
     * @param StringType   $text     Alternative text of the category image.
     * @param LanguageCode $language Two letter language code.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setImageAltText(StringType $text, LanguageCode $language)
    {
        $this->altTexts[(string)$language] = $text->asString();
        
        return $this;
    }
    
    
    /**
     * Returns the icon filename of the category.
     *
     * @return string
     */
    public function getIcon()
    {
        return $this->icon;
    }
    
    
    /**
     * Sets the icon filename of the category.
     *
     * @param StringType $iconFile Category icon file.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setIcon(StringType $iconFile)
    {
        $this->icon = $iconFile->asString();
        
        return $this;
    }
    
    /*
     * ====================================================
     * TODO: Implement getIconWidth() and getIconHeight()
     * ====================================================
     */
    
    /**
     * Returns an addon value by a given key.
     *
     * @param StringType $key Identifier key.
     *
     * @return string
     */
    public function getAddonValue(StringType $key)
    {
        return $this->addonValues->getValue($key->asString());
    }
    
    
    /**
     * Sets an addon key and value.
     *
     * @param StringType $key   Identifier key.
     * @param StringType $value Value text.
     *
     * @return Category Same instance for chained method calls.
     */
    public function setAddonValue(StringType $key, StringType $value)
    {
        $this->addonValues->setValue($key->asString(), $value->asString());
        
        return $this;
    }
    
    
    /**
     * Returns a KeyValueCollection of addon values.
     *
     * @return KeyValueCollection
     */
    public function getAddonValues()
    {
        return $this->addonValues;
    }
    
    
    /**
     * Adds a KeyValueCollection of addon values.
     *
     * @param KeyValueCollection $collection Key-Value collection.
     *
     * @return Category Same instance for chained method calls.
     */
    public function addAddonValues(KeyValueCollection $collection)
    {
        $this->addonValues->addCollection($collection);
        
        return $this;
    }
    
    
    /**
     * Deletes an addon value with a given key from the KeyValueCollection.
     *
     * @param StringType $key Identifier key.
     *
     * @return Category Same instance for chained method calls.
     */
    public function deleteAddonValue(StringType $key)
    {
        $this->addonValues->deleteValue($key->asString());
        
        return $this;
    }
    
    
    /**
     * Sets a category setting object
     *
     * @param CategorySettingsInterface $settings
     *
     * @return Category Same instance for chained method calls.
     */
    public function setSettings(CategorySettingsInterface $settings)
    {
        $this->settings = $settings;
        
        return $this;
    }
    
    
    /**
     * Returns the bottom description of the category for the language with the provided language code.
     *
     * @param LanguageCode $language Two letter language code.
     *
     * @return string Description of the category from the given language code.
     */
    public function getDescriptionBottom(LanguageCode $language)
    {
        return (string)$this->descriptions_bottom[(string)$language];
    }
    
    
    /**
     * Sets the bottom description of the category for the language with the provided language code.
     *
     * @param StringType   $text     Description of the category.
     * @param LanguageCode $language Two letter language code.
     *
     * @return CategoryInterface Same instance for chained method calls.
     */
    public function setDescriptionBottom(StringType $text, LanguageCode $language)
    {
        $this->descriptions_bottom[(string)$language] = $text->asString();
        
        return $this;
    }
}