<?php
/*
* 2007-2016 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* 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 http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2016 PrestaShop SA
*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

if (!defined('_CAN_LOAD_FILES_')) {
    exit;
}

use PrestaShop\PrestaShop\Core\Module\WidgetInterface;
use Symfony\Component\Validator\Constraints\Url;
use Symfony\Component\Validator\Validation;

class Ps_Socialfollow extends Module implements WidgetInterface
{
    private $templateFile;

    const SOCIAL_NETWORKS = [
        'facebook',
        'twitter',
        'rss',
        'youtube',
        'pinterest',
        'vimeo',
        'instagram',
        'linkedin',
    ];

    public function __construct()
    {
        $this->name = 'ps_socialfollow';
        $this->author = 'PrestaShop';
        $this->version = '2.1.0';

        $this->bootstrap = true;
        parent::__construct();

        $this->displayName = $this->trans('Social media follow links', array(), 'Modules.Socialfollow.Admin');
        $this->description = $this->trans('Allows you to add information about your brand\'s social networking accounts.', array(), 'Modules.Socialfollow.Admin');

        $this->ps_versions_compliancy = array('min' => '1.7.1.0', 'max' => _PS_VERSION_);

        $this->templateFile = 'module:ps_socialfollow/ps_socialfollow.tpl';
    }

    public function install()
    {
        return (parent::install() &&
            Configuration::updateValue('BLOCKSOCIAL_FACEBOOK', '') &&
            Configuration::updateValue('BLOCKSOCIAL_TWITTER', '') &&
            Configuration::updateValue('BLOCKSOCIAL_RSS', '') &&
            Configuration::updateValue('BLOCKSOCIAL_YOUTUBE', '') &&
            Configuration::updateValue('BLOCKSOCIAL_PINTEREST', '') &&
            Configuration::updateValue('BLOCKSOCIAL_VIMEO', '') &&
            Configuration::updateValue('BLOCKSOCIAL_INSTAGRAM', '') &&
            Configuration::updateValue('BLOCKSOCIAL_LINKEDIN', '') &&
            $this->registerHook('displayFooter'));
    }

    public function uninstall()
    {
        return (Configuration::deleteByName('BLOCKSOCIAL_FACEBOOK') &&
            Configuration::deleteByName('BLOCKSOCIAL_TWITTER') &&
            Configuration::deleteByName('BLOCKSOCIAL_RSS') &&
            Configuration::deleteByName('BLOCKSOCIAL_YOUTUBE') &&
            Configuration::deleteByName('BLOCKSOCIAL_PINTEREST') &&
            Configuration::deleteByName('BLOCKSOCIAL_VIMEO') &&
            Configuration::deleteByName('BLOCKSOCIAL_INSTAGRAM') &&
            Configuration::deleteByName('BLOCKSOCIAL_LINKEDIN') &&
            parent::uninstall());
    }

    public function getContent()
    {
        if (Tools::isSubmit('submitModule')) {
            $this->updateFields();
            $this->_clearCache('*');

            Tools::redirectAdmin($this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&tab_module='.$this->tab.'&conf=4&module_name='.$this->name);
        }

        return $this->renderForm();
    }

    public function _clearCache($template, $cache_id = null, $compile_id = null)
    {
        parent::_clearCache($this->templateFile);
    }

    public function renderForm()
    {
        $fields_form = array(
            'form' => array(
                'legend' => array(
                    'title' => $this->trans('Settings', array(), 'Admin.Global'),
                    'icon' => 'icon-cogs'
                ),
                'input' => array(
                    array(
                        'type' => 'text',
                        'label' => $this->trans('Facebook URL', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_facebook',
                        'desc' => $this->trans('Your Facebook fan page.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('Twitter URL', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_twitter',
                        'desc' => $this->trans('Your official Twitter account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('RSS URL', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_rss',
                        'desc' => $this->trans('The RSS feed of your choice (your blog, your store, etc.).', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('YouTube URL', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_youtube',
                        'desc' => $this->trans('Your official YouTube account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('Pinterest URL:', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_pinterest',
                        'desc' => $this->trans('Your official Pinterest account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('Vimeo URL:', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_vimeo',
                        'desc' => $this->trans('Your official Vimeo account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('Instagram URL:', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_instagram',
                        'desc' => $this->trans('Your official Instagram account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                    array(
                        'type' => 'text',
                        'label' => $this->trans('LinkedIn URL:', array(), 'Modules.Socialfollow.Admin'),
                        'name' => 'blocksocial_linkedin',
                        'desc' => $this->trans('Your official LinkedIn account.', array(), 'Modules.Socialfollow.Admin'),
                    ),
                ),
                'submit' => array(
                    'title' => $this->trans('Save', array(), 'Admin.Global'),
                )
            ),
        );

        $helper = new HelperForm();
        $helper->show_toolbar = false;
        $helper->table =  $this->table;
        $helper->submit_action = 'submitModule';
        $helper->tpl_vars = array(
            'fields_value' => $this->getConfigFieldsValues(),
        );

        return $helper->generateForm(array($fields_form));
    }

    public function getConfigFieldsValues()
    {
        $result = [];
        foreach (static::SOCIAL_NETWORKS as $social) {
            $result['blocksocial_' . $social] = Configuration::get('BLOCKSOCIAL_' . strtoupper($social));
        }
        return $result;
    }

    public function renderWidget($hookName = null, array $configuration = [])
    {
        if (!$this->isCached($this->templateFile, $this->getCacheId('ps_socialfollow'))) {
            $this->smarty->assign($this->getWidgetVariables($hookName, $configuration));
        }

        return $this->fetch($this->templateFile, $this->getCacheId('ps_socialfollow'));
    }

    public function getWidgetVariables($hookName = null, array $configuration = [])
    {
        $social_links = array();

        if ($sf_facebook = Configuration::get('BLOCKSOCIAL_FACEBOOK')) {
            $social_links['facebook'] = array(
                'label' => $this->trans('Facebook', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'facebook',
                'url' => $sf_facebook,
            );
        }

        if ($sf_twitter = Configuration::get('BLOCKSOCIAL_TWITTER')) {
            $social_links['twitter'] = array(
                'label' => $this->trans('Twitter', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'twitter',
                'url' => $sf_twitter,
            );
        }

        if ($sf_rss = Configuration::get('BLOCKSOCIAL_RSS')) {
            $social_links['rss'] = array(
                'label' => $this->trans('Rss', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'rss',
                'url' => $sf_rss,
            );
        }

        if ($sf_youtube = Configuration::get('BLOCKSOCIAL_YOUTUBE')) {
            $social_links['youtube'] = array(
                'label' => $this->trans('YouTube', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'youtube',
                'url' => $sf_youtube,
            );
        }

        if ($sf_pinterest = Configuration::get('BLOCKSOCIAL_PINTEREST')) {
            $social_links['pinterest'] = array(
                'label' => $this->trans('Pinterest', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'pinterest',
                'url' => $sf_pinterest,
            );
        }

        if ($sf_vimeo = Configuration::get('BLOCKSOCIAL_VIMEO')) {
            $social_links['vimeo'] = array(
                'label' => $this->trans('Vimeo', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'vimeo',
                'url' => $sf_vimeo,
            );
        }

        if ($sf_instagram = Configuration::get('BLOCKSOCIAL_INSTAGRAM')) {
            $social_links['instagram'] = array(
                'label' => $this->trans('Instagram', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'instagram',
                'url' => $sf_instagram,
            );
        }

        if ($sf_linkedin = Configuration::get('BLOCKSOCIAL_LINKEDIN')) {
            $social_links['linkedin'] = array(
                'label' => $this->trans('LinkedIn', array(), 'Modules.Socialfollow.Shop'),
                'class' => 'linkedin',
                'url' => $sf_linkedin,
            );
        }

        return array(
            'social_links' => $social_links,
        );
    }

    /**
     * Update form fields.
     * Check all social networks form value and verify the URL is valid.
     * Do nothing if a violation is spotted.
     */
    protected function updateFields()
    {
        $validator = Validation::createValidator();
        $constraints = [new Url()];

        foreach (static::SOCIAL_NETWORKS as $social) {
            $value = Tools::getValue('blocksocial_' . $social, '');
            $violations = $validator->validate($value, $constraints);
            if (0 === count($violations)) {
                Configuration::updateValue('BLOCKSOCIAL_' . strtoupper($social), $value);
            }
        }
    }
}