<?php

class ProductCategory extends Page {

    private static $icon = 'mysite/images/box.png';

    private static $db = array(
        'Summary' => 'HTMLText',
        'InSidebar' => 'Boolean(0)',
        'CallToAction' => 'HTMLText',
        'ShowInHomeMenu' => 'Boolean(0)'
    );

    private static $defaults = array();

    private static $description = '';

    private static $has_one = array(
        'Image' => 'Image'
    );

    private static $many_many = array(
        'ProductPages' => 'ProductPage'
    );

    private static $allowed_children = array(
        'ProductCategory',
        'ProductPage'
    );

    public function getSettingsFields(){
        $fields = parent::getSettingsFields();
        $fields->addFieldToTab('Root.Settings', new CheckboxField('InSidebar'));
        $fields->addFieldToTab('Root.Settings', new CheckboxField('ShowInHomeMenu', 'Show Product Category In Home Dropdown Menu'));
        return $fields;
    }

    public function getCMSFields() {

        $fields = parent::getCMSFields();

        $fields->addFieldToTab('Root.Main', new UploadField('Image', 'Product Category Thumbnail'), 'Content');
        $fields->addFieldToTab('Root.Main', $summary = new HtmlEditorField('Summary', 'Summary (optional)'), 'Content');
        $summary->setRows(10);
        $summary->setRightTitle('Summary to be displayed on the relative holder page. If no summary is present then the first paragraph of the content will be used.');

        /* -----------------------------------------
         * Call To Action
        ------------------------------------------*/

        $fields->addFieldToTab('Root.CallToAction', new HtmlEditorField('CallToAction', 'Content'));

        return $fields;

    }

    /**
     * @return DataList
     */
    public function getSidebarCategoryItem(){
        return ProductCategory::get()->Filter(array('ParentID' => 0, 'InSidebar' => 1));
    }

    /**
     * @return ArrayList
     */
    public function getProductChildren(){
        $set = new ArrayList;
        foreach($this->Children() as $obj) $set->push($obj);
        foreach(ProductPage::get()->filter('ProductCategory.ID', $this->ID) as $obj) $set->push($obj);
        return $set;
    }

}

class ProductCategory_Controller extends Page_Controller {

    private static $allowed_actions = array('Filter');

    /**
     * @return Form
     */
    public function Filter() {

        $capacity = new DropdownField('Capacity', 'Capacity', array(
            0 => 'Any',
            1 => '0 - 300g',
            2 => '301g - 1kg',
            3 => '1.1 - 10kg',
            4 => '10.1 - 100kg',
            5 => '101 - 500kg',
            6 => '501 - 1000kg',
            7 => '1000+'
        ));
        $capacity->addExtraClass('form-control');

        $graduation = new DropdownField('Graduation', 'Graduation', array(
            0 => 'Any',
            1 => 'Less than 1g',
            2 => '1 - 5g',
            3 => '6 - 50g',
            4 => '51g - 1kg',
            5 => '1.1 - 5kg',
            6 => '5.1kg'
        ));
        $graduation->addExtraClass('form-control');

        $fields = new FieldList(
            $capacity,
            $graduation
        );

        $action = new FormAction('doFilterBy', 'Filter');
        $action->addExtraClass('btn btn-secondary btn-block');

        $actions = new FieldList(
            $action
        );

        $validator = new RequiredFields(
        );

        return new Form($this, 'Filter', $fields, $actions, $validator);

    }

    /**
     * @param $data
     * @param $form
     * @return HTMLText
     */
    function doFilterBy($data, $form) {

        $c = $data['Capacity'];
        $g = $data['Graduation'];
        $filter = array();

        if($c>0){
            $filter['ProductPage.Capacity'] = $c;
        }
        if($g>0){
            $filter['ProductPage.Graduation'] = $g;
        }

        $products = ProductPage::get()->filter($filter);

        return $this->customise(array('AllChildren' => $products, 'Title' => 'Filtered Results', 'Content' => ''))->renderWith(array('ProductCategory', 'Page'));

    }

}