<?php

/*
 * Модуль, отображающий список выбора города
 */

function cityfilters_init()
{
    drupal_add_library('system', 'jquery.cookie');
    drupal_add_css(drupal_get_path('module', 'cityfilters') . '/css/cityfilters_style.css');
    drupal_add_js(drupal_get_path('module', 'cityfilters') . '/js/cityfilters_jfunctions.js');
}

function cityfilters_block_info()
{
    $blocks['city_filter'] = array(
        'info' => t('City filter'),
        'cache' => DRUPAL_NO_CACHE,
    );
    $blocks['city_filter_list'] = array(
        'info' => t('Select your City (List)'),
        'cache' => DRUPAL_NO_CACHE,
    );

    return $blocks;
}

/**
 * @param string $delta
 * @return array|bool
 */
function cityfilters_block_view($delta = '')
{
    $block = array();
    if (user_access('access content')) {
        $block['subject'] = t('Select your city');
        switch ($delta) {
            case 'city_filter':
                $block['content'] = drupal_get_form('cityfilters_select_city_form');
                return $block;
            case 'city_filter_list':
                $block['content'] = cityfilters_select_city_list();
                return $block;
        }
    }
    return false;
}

/**
 * Form constructor for city select form.
 *
 */
function cityfilters_select_city_form($form, &$form_state)
{
    $cities = cityfilters_get_cities();

    $form['widget'] = [
        '#type' => 'container',
        '#attributes' => ['class' => ['container-inline']],
    ];
    $form['widget']['city'] = [
        '#type' => 'select',
        '#title' => t('Выберите город'),
        '#title_display' => 'attribute',
        '#options' => $cities,
        '#default_value' => $_COOKIE['clicat_city'],
        '#required' => TRUE,

    ];
    $form['widget']['actions'] = ['#type' => 'actions'];
    $form['widget']['actions']['submit'] = [
        '#type' => 'submit',
        '#value' => t('Select'),
        '#id' => 'selectcity-submit',
    ];
    return $form;
}

function cityfilters_select_city_form_submit($form, &$form_state)
{
// установка coocies в JS.
//    dpm($_COOKIE);
}

/**
 * Form constructor for city select form.
 *
 */
function cityfilters_select_city_list()
{
    $cities = cityfilters_get_cities();
    $res = '<ul class="cities">';
    foreach ($cities as $key => $city){
        $classes = 'cityfilters-list-item' . ($key === $_COOKIE['clicat_city'] ? ' selected' : '');
        $res .= '<li><a class="' . $classes . '" data-city="' . $key . '">' . $city . '</a></li>';
    }
    $res .= '</ul>';
    return $res;
}

/*
 *  Выбираем список городов
 */
function cityfilters_get_cities()
{
    $query = db_select('node', 'n');
    $query->leftJoin('field_data_field_address', 'a', 'n.nid = a.entity_id');
    $query->fields('a', ['field_address_locality']);
    $query->addExpression('COUNT(*)', 'count');
    $query->condition('n.status', '1');
    $query->condition('n.type', 'clinic');
    $query->groupBy('a.field_address_locality');
    $query->orderBy('count', 'DESC');
    $all = $query->execute()->fetchAll();
    $cities['all'] = 'Все';
    foreach ($all as $city) {
        $city_name = $city->field_address_locality . ' (' . $city->count . ')';
        $cities[$city->field_address_locality] = $city_name;
    }
    return $cities;
}


//    $block['subject'] = t('City filter');
//    // Load the view.
//    $view = views_embed_view('catalog', 'attachment_cities');
//    if ($view) {
//      $block['content'] = $view;
//    }
//    else {
//      $block['content'] = t('The view is empty');
//    }