<?php


/**

 * SpyroPress Ajax Handlers

 * Handles AJAX requests via wp_ajax hook (both admin and front-end events)

 *

 * @category 	AJAX

 * @package 	SpyroPress

 */


/** Admin AJAX events *****************************************************/


add_action( 'wp_ajax_spyropress_update_options', 'spyropress_update_options_ajax' );

add_action( 'wp_ajax_spyropress_reset_options', 'spyropress_reset_options_ajax' );

add_action( 'wp_ajax_spyropress_import_options', 'spyropress_import_options_ajax' );

add_action( 'wp_ajax_spyropress_search_taxonomy', 'wp_ajax_spyropress_search_taxonomy' );

add_action( 'wp_ajax_get_google_webfonts', 'wp_ajax_spyropress_get_google_webfonts' );


add_action( 'wp_ajax_spyropress_skin_generator', 'spyropress_skin_generator' );

add_action( 'wp_ajax_spyropress_skin_remove', 'spyropress_skin_remove' );


/** Admin AJAX Functions *************************************************/


/**

 * Save SpyroPress Panel Options

 */

function spyropress_update_options_ajax() {

    global $spyropress;

    
    // Security check

    check_ajax_referer( 'spyropress-update-options', 'security' );


    // Generate Option Key

    $key = 'spyropress_' . $_POST['setting_panel_name'];


    // Check for define

    if ( ! isset( $GLOBALS[$key] ) ) return;


    // Get options from Global

    $options = $GLOBALS[$key];


    // Update Theme Options

    $settings = spyropress_update_settings( $options );


    $result = update_option( $key . $spyropress->lang, $settings[0] );


    // Save Dynamic CSS

    if ( $result ) do_action( 'spyropress_after_options_saved', $settings, $key );


    // Allow developer to perform actions

    do_action( 'spyropress_update_' . $_POST['setting_panel_name'], $settings, $key );


    // Exit

    die();

}


/**

 * Reset SpyroPress Panel Options

 */

function spyropress_reset_options_ajax() {


    // Security

    check_ajax_referer( 'spyropress-update-options', 'security' );


    // Generate Option Key

    $key = 'spyropress_' . $_POST['setting_panel_name'];


    // Check for define

    if ( ! isset( $GLOBALS[$key] ) ) {

        _e( 'false', 'spyropress' );

        die();

    }


    // Reset Options to Default

    spyropress_setup_options_default( $key );


    // Allow developer to perform actions

    do_action( 'spyropress_reset_' . $_POST['setting_panel_name'] );


    // Refresh page

    echo 'window.location = "' . $_SERVER['HTTP_REFERER'] . '";';


    // Exit

    die();

}


/**

 * Restore SpyroPress Panel Options

 */

function spyropress_import_options_ajax() {

    global $spyropress;

    
    // Security

    check_ajax_referer( 'spyropress-update-options', 'security' );


    // Generate Option Key

    $key = 'spyropress_' . $_POST['setting_panel_name'];


    // Check for define

    if ( ! isset( $GLOBALS[$key] ) ) {

        _e( 'false', 'spyropress' );

        die();

    }


    // Doing import

    $data = $_POST['settings'];

    $data = spyropress_decode( $data );


    update_option( $key . $spyropress->lang, $data );


    // Allow developer to perform actions

    do_action( 'spyropress_import_' . $_POST['setting_panel_name'] );


    // Refresh page

    echo 'window.location = "' . $_SERVER['HTTP_REFERER'] . '";';


    // Exit

    die();

}


/**

 * Skin Generator

 */

function spyropress_skin_generator( ) {

    
    // Security

    check_ajax_referer( 'skin_generator_form', 'skin_generator_nonce' );

        
    $name = $_POST['skin_name'];

    $color = $_POST['skin_color'];

    $gradient = $_POST['skin_gradient'];

    
    if( empty( $name ) || empty( $color ) ) die();

        
    // generate filename

    $filename = spyropress_uglify( $name );

    $skin = template_path() . 'assets/less/skin.less';

    $css = template_path() . 'assets/css/skins/' . $filename . '.css';

    
    // Delte previous file

    if( file_exists( $css ) ) unlink( $css );

    
    // LESS

    require framework_classes() . 'class-lessc.php';

    $less = new lessc;

    $less->setFormatter( 'compressed' );

    $less->setVariables( array(

        'skinColor' => spyropress_validate_setting( $color, 'colorpicker', 'skin_color', array( ) ),

        'gradient' => $gradient

    ) );

    
    $result = $less->compileFile( $skin, $css );

    
    if( $result ) {

        $skins = get_option( '_spyropress_porto_skins' );

        $skins = $skins ? $skins : array();

        $skins[$filename] = array(

            'name' => $name,

            'color' => $color,

            'gradient' => $gradient

        );

        
        update_option( '_spyropress_porto_skins', $skins );

    }

    
    // Refresh page

    echo 'window.location = "' . $_SERVER['HTTP_REFERER'] . '";';


    // Exit

    die();

}


function spyropress_skin_remove( ) {

    
    // Security

    check_ajax_referer( 'skin_generator_form', 'skin_generator_nonce' );

        
    $filename = $_POST['skin_name'];

    
    if( empty( $filename ) ) die();

        
    // generate filename

    $css = template_path() . 'assets/css/skins/' . $filename . '.css';

    
    // Delte previous file

    unlink( $css );

    
    $skins = get_option( '_spyropress_porto_skins' );

    unset( $skins[$filename] );

    update_option( '_spyropress_porto_skins', $skins );

    
    // Refresh page

    echo 'window.location = "' . $_SERVER['HTTP_REFERER'] . '";';


    // Exit

    die();

}

/**

 * Ajax Search function for Ajax Chosen

 */

function wp_ajax_spyropress_search_taxonomy() {


    $type = $_REQUEST['type'];

    $wp_type = $_REQUEST['wp_type'];


    if ( 'custom_post' == $type )

        search_custom_post( $wp_type );

    if ( 'taxonomy' == $type )

        search_custom_taxonomy( $wp_type );

    die();

}


function search_custom_post( $wp_type ) {


    // Search in title

    add_filter( 'posts_where', 'chosen_search_where', 1, 2 );


    // Make WP_Query

    $args = array(

        'post_type' => explode( ',', $wp_type ),

        'orderby' => 'title',

        'order' => 'ASC',

        'post_status' => array( 'publish', 'private' ),

        'posts_per_page' => -1

    );

    $the_query = new WP_Query( $args );


    // Loop

    $data = array();

    while ( $the_query->have_posts() ):

        $the_query->the_post();

        $data[] = array( 'value' => get_the_ID(), 'text' => get_the_title() );

    endwhile;


    echo json_encode( $data );

}


/**

 * Create where query to search in post title

 */

function chosen_search_where( $where, &$wp_query ) {

    remove_filter( 'posts_where', 'chosen_search_where', 1, 2 );


    global $wpdb;

    if ( $term = $_REQUEST['term'] ) {

        $where .= ' AND ' . $wpdb->posts . '.post_title LIKE \'%' . esc_sql(  wpdb::esc_like( $term ) ) . '%\'';

    }

    return $where;

}


function search_custom_taxonomy( $wp_type ) {


}


/**

 * Get Google WebFonts

 */

function wp_ajax_spyropress_get_google_webfonts() {


    // Getting from cache

    if( $fonts = get_transient( '_spyropress_google_webfonts' ) ) {

        echo $fonts;

    }

    // Getting Fonts

    else {

        $key = 'AIzaSyDJYYVPLT9JaoMPF8G5cFm1YjTZMjknizE';

        $url = sprintf( 'https://www.googleapis.com/webfonts/v1/webfonts?key=%1$s&sort=alpha', $key );

        $response = wp_remote_get( $url, array( 'sslverify' => false ) );

        $fonts = wp_remote_retrieve_body( $response );


        if( !empty( $fonts ) ) {

            $fonts = json_decode( $fonts );

            $fonts = json_encode( $fonts->items );


            // saving to cache

            set_transient( '_spyropress_google_webfonts', $fonts, spyropress_get_seconds() );


            echo $fonts;

        }

        else {

            echo '-1';

        }

    }


    // Exit

    die();

}

/** Frontend AJAX events **************************************************/

add_action( 'wp_ajax_spyropress_twitter_tweets', 'spyropress_twitter_tweets' );
add_action( 'wp_ajax_nopriv_spyropress_twitter_tweets', 'spyropress_twitter_tweets' );
function spyropress_twitter_tweets() {

    $defaults = array(
        'lang' => substr( strtoupper( get_locale() ), 0, 2 ),
        'post_count' => isset( $_GET['notweets'] ) ? $_GET['notweets'] : 10,
        'username' => isset( $_GET['twitteruser'] ) ? $_GET['twitteruser'] : get_setting( 'twitter_username' ),
        'key' => '_spyropress_footer_tweets_',
        'consumer_key' => get_setting( 'twitter_consumer_key' ),
        'consumer_secret' => get_setting( 'twitter_consumer_secret' ),
        'access_token' => get_setting( 'twitter_access_token' ),
        'access_token_secret' => get_setting( 'twitter_access_token_secret' )
    );
    extract( $defaults );

    if( ! $consumer_key || ! $consumer_secret || ! $access_token || ! $access_token_secret ) {
        _e( 'No oAuth setting provided.', 'spyropress' );
        exit;
    }

    $tweets = array();
    if( false === ( $tweets = get_transient( $key . $username ) ) ) {

        require_once 'utilities/twitteroauth/twitteroauth.php';
        $twitterConnection = new TwitterOAuth( $consumer_key, $consumer_secret, $access_token, $access_token_secret );
    	$tweets = $twitterConnection->get(
    			  'statuses/user_timeline',
    			  array(
    			    'screen_name'     => $username,
    			    'count'           => $post_count
    			  )
    	);

    	if($twitterConnection->http_code != 200) {
    		$tweets = get_transient( $key . $username );
    	}

        // Cache
        set_transient( $key . $username, $tweets, spyropress_get_seconds( 0.1 ) );
    }

    echo json_encode( $tweets );
    exit;
}

?>