<?php
/**
 * MyArcadePlugin Theme API  - Helps theme developers to create MyArcadePlugin compatible themes.
 *
 * @package MyArcadePlugin Theme API
 * @author Daniel Bakovic - http://myarcadeplugin.com
 *
 * @version 1.0.0
 */


if ( !function_exists('myarcade_title')) {
  /**
  * Display or retrieve the title of the current post/game. The title can be cutted after x characters. 
  * Words will not be cutted off (wordwrap).
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $chars Optional. Max. length of the title
  * @param bool $echo Optional. default to true. Whether to display or return.
  * @return string $title String if $echo parameter is false.
  */
  function myarcade_title ($chars = 0, $echo = true) {

    $title = strip_tags( the_title('', '', FALSE) );

    if ( $chars > 0 ) {
      if ( (strlen($title) > $chars) ) {
        $title = mb_substr($title, 0, $chars);
        $title = mb_substr($title, 0, -strlen(strrchr($title, ' ')));  // Wordwrap

        if ( strlen($title) < 4 ) {
          $title = mb_substr( the_title('', '',FALSE), 0, $chars );
        }

        $title .= ' ..';
      }
    } 

    if ($echo == true) { echo $title; } else { return $title; }
  }
}


if ( !function_exists('myarcade_excerpt')) {
  /**
  * Display or retrieve the excerpt of a game post. All tags will be removed.
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $length Character length of the excerpt
  * @param bool $echo Optional. Return or echo the result
  */
  function myarcade_excerpt($length = false, $echo = true) {
    global $post;

    // Get post excerpt
    $text = strip_shortcodes( $post->post_content );
    $text = apply_filters('the_content', $text);
    $text = str_replace(']]>', ']]&gt;', $text);
    $text = wp_trim_words( $text, 100, '' );  

    if ( $length ) {
      if ( strlen($text) > $length ) {
        $text = mb_substr($text, 0, $length).' [...]';
      }
    }

    if ($echo) { echo $text; } else { return $text; }
  }
}


if ( !function_exists('myarcade_thumbnail')) {
  /**
  * Display the game thumbnail of the current game. 
  * If no thumbnail is available the function will display a default thumbnail located in the template directory.
  *
  * default thumb: /template_directory/images/def_thumb.png
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $width Optional. Width of the thumbnail in px. Default: 100
  * @param int $height Optional. Height of the thumbnail in px. Default: 100
  * @param string $class Optional. CSS class for the image tag
  */
  function myarcade_thumbnail ($width = 100, $height = 100, $class = '') {
    global $post;

    if ( !empty($class) ) { $class = 'class="'.$class.'"'; }

    $thumbnail = get_post_meta($post->ID, "mabp_thumbnail_url", true);

    if ( preg_match('|^(http).*|i', $thumbnail) == 0 ) {
      // No Thumbail available.. get the default thumb
      
      $thumbnail = get_template_directory_uri().'/images/def_thumb.png';
      
      if ( !file_exists($thumbnail) ) {
        $thumbnail = MYARCADE_URL .'/templates/assets/images/def_thumb.png';
      }
    }

    $args = array( 'before' => '', 'after' => '', 'echo' => false );

    echo '<img src="'.$thumbnail.'" width="'.$width.'" height="'.$height.'" '.$class.' alt="'.the_title_attribute( $args ).'" />';
  }
}


if ( !function_exists('myarcade_get_thumbnail_url')) {
  /**
  * Get the url of the current game thumbnail
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  */
  function myarcade_get_thumbnail_url() {
    global $post;  
    return get_post_meta($post->ID, "mabp_thumbnail_url", true); 
  }
}


if ( !function_exists('myarcade_count_screenshots')) {
  /**
  * Get the number of available screenshots for the current game.
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @return int Number of screenshots
  */
  function myarcade_count_screenshots () {
    global $post;

    $screen_count = 0;

    for ($screen_nr = 1; $screen_nr <= 4; $screen_nr++) {   
      if ( preg_match('|^(http).*|i', get_post_meta($post->ID, "mabp_screen".$screen_nr."_url", true)) ) {
        $screen_count++;
      }
    }

    return intval($screen_count);
  }
}


if ( !function_exists('myarcade_screenshot')) {
  /**
  * Display the given screenshot of the current game.
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $width Optional. Width of the screen shot in px. Default: 450
  * @param int $height Optional. Height of the screen shot in px. Default: 350
  * @param int $number Optional. The number of the screenshot (1..4). Default 1
  * @param string $class Optional. CSS class fot the image tag
  */
  function myarcade_screenshot ($width = 450, $height = 300, $number = 1, $class = '') {
    global $post;

    if ( !empty($class) ) { $class = 'class="'.$class.'"'; }

    $screenshot = get_post_meta($post->ID, "mabp_screen".$number."_url", true);

    if ( preg_match('|^(http).*|i', $screenshot) ) {
      $args = array( 'before' => '', 'after' => '', 'echo' => false );
      echo '<img src="'.$screenshot.'"  width="'.$width.'" height="'.$height.'" '.$class.' alt="'.the_title_attribute( $args ).'" />';
    }
  }
}


if ( !function_exists('myarcade_get_screenshot_url')) {
  /**
  * Retrieves the screenshot url for the current game
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $number Optional. The number of the screenshot (1..4). Default 1
  * @param bool $echo Optional. Return or echo the result
  */
  function myarcade_get_screenshot_url ($number = 1, $echo = true) {
    global $post;

    $screenshot = get_post_meta($post->ID, "mabp_screen".$number."_url", true);

    if ( $echo == true ) { echo $screenshot; } else { return $screenshot; }
  }
}


if ( !function_exists('myarcade_all_screenshots')) {
  /**
  * Display all available screenshots of the current game.
  *
  * @usage Use this function only in the WordPress post loop
  *
  * @since 1.0
  *
  * @param int $width Optional. Width of the screen shot in px. Default: 450
  * @param int $height Optional. Height of the screen shot in px. Default: 350
  * @param int $screen_nr Optional. The number of the screen (1..4). Default 1
  * @param string $class Optional. CSS class fot the image tag
  */
  function myarcade_all_screenshots ($width = 450, $height = 300, $class = '') {
    global $post;

    $args = array( 'before' => '', 'after' => '', 'echo' => false );

    if ( !empty($class) ) { $class = 'class="'.$class.'"'; }  

    for ($screen_nr = 1; $screen_nr <= 4; $screen_nr++) {
      $screenshot = get_post_meta($post->ID, "mabp_screen".$screen_nr."_url", true);

      if ( preg_match('|^(http).*|i', $screenshot) ) {      
        echo '<a href="'.$screenshot.'" title="'.the_title_attribute( $args ).'" rel="prettyPhoto[slides]"><img src="'.$screenshot.'"  width="'.$width.'" height="'.$height.'" '.$class.' alt="'.the_title_attribute( $args ).'" /></a>';
      }
    }
  }
}

if ( !function_exists( 'is_myarcade_game') ) {
  /**
   * Checks is the current post is a MyArcadePlugin game
   * 
   * @return boolean
   */
  function is_myarcade_game() {    
    if ( defined('MYARCADE_VERSION') && function_exists( 'is_game') ) {
      return is_game();
    }
    return false;
  }
}

if ( !function_exists( 'myarcade_featured_image' ) ) {
  /**
   * Return a featured image url. 
   * Function added for the Gameleon theme
   * 
   * @return string image url
   */
  function myarcade_featured_image() {   
    $image = myarcade_get_screenshot_url(1, false);    
    if ( !$image ) {
      $image = myarcade_get_thumbnail_url();
    }    
    return $image;
  }
}
?>