<?php

class Client extends DataObject {

    private static $db = array(
        'Title' => 'Text',
        'URLSegment' => 'Varchar(255)',
        'Content' => 'HTMLText',
        'Facebook' => 'Varchar(255)',
        'Twitter' => 'Varchar(255)',
        'LinkedIn' => 'Varchar(255)',
        'Youtube' => 'Varchar(255)',
        'GooglePlus' => 'Varchar(255)',
        'SortOrder' => 'Int'
    );

    private static $defaults = array(
        'URLSegment' => 'new-client'
    );

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

    private static $many_many = array (
        'Job' => 'Job'
    );

    private static $belongs_many_many = array(
        'Countries' => 'Country'
    );

    private static $summary_fields = array(
        'Title' => 'Title',
        'URLSegment' => 'URLSegment'
    );

    private static $indexes = array(
        "URLSegment" => true
    );

    private static $description = 'Client';

    private static $default_sort = 'SortOrder';

    public function getCMSFields() {

        $fields = parent::getCMSFields();

        $fields->removeByName('Countries');
        $fields->removeByName('Job');

        $fields->addFieldToTab('Root.Main', new TextField('Title', 'Client Name'), 'Content');
        $fields->addFieldToTab('Root.Main', new TextField('URLSegment', 'URL Segment'), 'Content');

        $countries = new ListboxField('Countries', 'Select countries', Country::get()->map()->toArray());
        $countries->setMultiple(true);
        $fields->addFieldToTab('Root.Main', $countries, 'Content');

        /* -----------------------------------------
        * Imagery
        ------------------------------------------*/

        $fields->addFieldToTab('Root.Images', new UploadField('Logo', 'Company Logo'));
        $fields->addFieldToTab('Root.Images', new UploadField('Banner', 'Banner'));

        /* -----------------------------------------
        * Social Media
        ------------------------------------------*/

        $fields->addFieldToTab('Root.SocialMedia', new TextField('Facebook', 'Link to Facebook'));
        $fields->addFieldToTab('Root.SocialMedia', new TextField('Twitter', 'Link to Twitter'));
        $fields->addFieldToTab('Root.SocialMedia', new TextField('LinkedIn', 'Link to LinkedIn'));
        $fields->addFieldToTab('Root.SocialMedia', new TextField('Youtube', 'Link to Youtube'));
        $fields->addFieldToTab('Root.SocialMedia', new TextField('GooglePlus', 'Link to Google+'));

        return $fields;

    }

    public function onBeforeWrite(){
        if((!$this->URLSegment || $this->URLSegment == 'new-client') && $this->Title != 'New Client'){
            $filter = URLSegmentFilter::create();
            $this->URLSegment = $filter->filter($this->Title);
        }
        else if($this->isChanged('URLSegment')){
            $segment = preg_replace('/[^A-Za-z0-9]+/','-',$this->URLSegment);
            $segment = preg_replace('/-+/','-',$segment);
            if(!$segment) {
                $segment = "client-$this->ID";
            }
            $this->URLSegment = $segment;
        }
        $count = 2;
        while($this->LookForExistingURLSegment($this->URLSegment)){
            $this->URLSegment = preg_replace('/-[0-9]+$/', null, $this->URLSegment) . '-' . $count;
            $count++;
        }

        parent::onBeforeWrite();
    }

    //Test whether the URLSegment exists already on another Client
    public function LookForExistingURLSegment($URLSegment){
        return (DataObject::get_one('Client', "URLSegment = '" . $URLSegment ."' AND ID != " . $this->ID));
    }

    public function Link(){
        //if we are on a category page return that
        if(Director::get_current_page()->ClassName == 'ClientCountryPage'){
            $Category = Director::get_current_page();
        }
        //Otherwise just grab the first category this product is in
        else{
            $Category = $this->Countries()->First()->ClientCountryPages()->First();
        }
        //Check we have a category then return the link
        if($Category){
            return $Category->absoluteLink() . 'show/' . $this->URLSegment;
        }
    }

}