autotrans.php

<?php
/**
Plugin Name: qTranslate-X Yandex Auto Translator Addon
Description: Over 900 lines of code? Rly?
Version: 1.0
Author: dimasmagadan@gmail.com
*/

/**
 * undocumented function
 *
 * @return void
 * @author dimasmagadan
 **/
function os_translate_text($from, $to, $text = false ){

	if($text){

		// TODO options page
		$key = 'trnsl.1.1.20160306T130030Z.0bc73ad9793e29e9.a3d991d1e577c5ad0fea2765159b6a4046ff4906';

		$lang_pairs = array();

		$lang_pairs_url = 'https://translate.yandex.net/api/v1.5/tr.json/getLangs?key='.$key;

		$response = wp_remote_get( $lang_pairs_url );
		if( !is_wp_error( $response) ) {
			$lang_pairs_raw = json_decode( wp_remote_retrieve_body( $response ), true );
			if(isset($lang_pairs_raw['dirs'])){
				$lang_pairs = $lang_pairs_raw['dirs'];
			}
		}
		
		if( in_array( $from.'-'.$to, $lang_pairs) ){

			$translate_url = 'https://translate.yandex.net/api/v1.5/tr.json/translate';
			$response = wp_remote_post( $translate_url, array(
				'body' => array(
						'key' => $key,
						'text' => $text,
						'lang' => $from.'-'.$to,
						'format' => 'html',
					)
			));

			if( !is_wp_error( $response ) ){
				$translation_raw = json_decode( wp_remote_retrieve_body( $response ), true );

				if( isset($translation_raw['code']) && $translation_raw['code']==200){

					// TODO implode array?
					return $translation_raw['text'][0];
				}
			}
		}
	}

	return false;
}

/**
 * undocumented function
 *
 * @return void
 * @author dimasmagadan
 **/
function os_cron_translation_task(){
}

/**
 * undocumented function
 *
 * @return void
 * @author dimasmagadan
 **/
function os_get_post_to_translate(){

	// TODO add option for main language.
	$main_language = 'ru';

	/**
	 * The WordPress Query class.
	 * @link http://codex.wordpress.org/Function_Reference/WP_Query
	 *
	 */
	$args = array(

		// FIXME put you own post types
		'post_type'   => 'post',
		
		'post_status' => array(
			'publish',
			'pending',
			'draft',
			'future',
			'private',
		),

		'suppress_filters' => true,
		
		'posts_per_page'         => 1,
		
		'meta_query'     => array(
			array(
				'key' => '_ya_translated',
				'compare' => 'NOT EXISTS'
			),
		),
	);
	
	$query = new WP_Query( $args );
	if( $query->have_posts() ){
		
		global $q_config;
		$languages = $q_config['enabled_languages'];

		while ($query->have_posts()) {
			$query->the_post();

			add_post_meta( get_the_ID(), '_ya_translated', '0', true );

			// TODO will work only for 2 languages
			foreach ($languages as $current_language) {
				if( $main_language != $current_language ){
					$text_to_translate = qtranxf_use( $main_language, get_the_content(), false, true );

					$translation = os_translate_text( $main_language, $current_language, $text_to_translate );

					if($translation){
						update_post_meta(get_the_ID(), '_ya_translated', '1' );

						wp_update_post( array(
							'ID' => get_the_ID(),
							'post_content' => get_the_content().'[:'.$current_language.']'. $translation .'[:]'
						) );
					}
				}
			}
		}
	}

	wp_reset_query();
	exit;
}
// DEV
add_action( 'wp_ajax_text', 'os_get_post_to_translate' );