<?php
/**
 * @package WordPress
 * @subpackage P2
 */

require_once( 'inc/utils.php' );

p2_maybe_define( 'P2_INC_PATH', get_template_directory()     . '/inc' );
p2_maybe_define( 'P2_INC_URL',  get_template_directory_uri() . '/inc' );
p2_maybe_define( 'P2_JS_PATH',  get_template_directory()     . '/js'  );
p2_maybe_define( 'P2_JS_URL',   get_template_directory_uri() . '/js'  );

class P2 {
	/**
	 * DB version.
	 *
	 * @var int
	 */
	var $db_version = 1;

	/**
	 * Options.
	 *
	 * @var array
	 */
	var $options = array();

	/**
	 * Option name in DB.
	 *
	 * @var string
	 */
	var $option_name = 'p2_manager';

	/**
	 * Components.
	 *
	 * @var array
	 */
	var $components = array();

	/**
	 * Includes and instantiates the various P2 components.
	 */
	function P2() {
		// Fetch options
		$this->options = get_option( $this->option_name );
		if ( false === $this->options )
			$this->options = array();

		// Include the P2 components
		$includes = array( 'compat', 'terms-in-comments', 'js-locale',
			'mentions', 'search', 'js', 'options-page',
			'template-tags', 'widgets/recent-tags', 'widgets/recent-comments',
			'list-creator' );

		if ( defined('DOING_AJAX') && DOING_AJAX )
			$includes[] = 'ajax';

		foreach ( $includes as $name ) {
			require_once( P2_INC_PATH . "/$name.php" );
		}

		// Add the default P2 components
		$this->add( 'mentions',         'P2_Mentions'         );
		$this->add( 'search',           'P2_Search'           );

		// Bind actions
		add_action( 'init',       array( &$this, 'init'             ) );
		add_action( 'admin_init', array( &$this, 'maybe_upgrade_db' ) );
	}

	function init() {
		// Load language pack
		load_theme_textdomain( 'p2', get_template_directory() . '/languages' );
	}

	/**
	 * Will upgrade the database if necessary.
	 *
	 * When upgrading, triggers actions:
	 *    'p2_upgrade_db_version'
	 *    'p2_upgrade_db_version_$number'
	 *
	 * Flushes rewrite rules automatically on upgrade.
	 */
	function maybe_upgrade_db() {
		if ( ! isset( $this->options['db_version'] ) || $this->options['db_version'] < $this->db_version ) {
			$current_db_version = isset( $this->options['db_version'] ) ? $this->options['db_version'] : 0;

			do_action( 'p2_upgrade_db_version', $current_db_version );
			for ( ; $current_db_version <= $this->db_version; $current_db_version++ ) {
				do_action( "p2_upgrade_db_version_$current_db_version" );
			}

			// Flush rewrite rules once, so callbacks don't have to.
			flush_rewrite_rules();

			$this->set_option( 'db_version', $this->db_version );
			$this->save_options();
		}
	}

	/**
	 * COMPONENTS API
	 */
	function add( $component, $class ) {
		$class = apply_filters( "p2_add_component_$component", $class );
		if ( class_exists( $class ) )
			$this->components[ $component ] = new $class();
	}
	function get( $component ) {
		return $this->components[ $component ];
	}
	function remove( $component ) {
		unset( $this->components[ $component ] );
	}

	/**
	 * OPTIONS API
	 */
	function get_option( $key ) {
		return isset( $this->options[ $key ] ) ? $this->options[ $key ] : null;
	}
	function set_option( $key, $value ) {
		return $this->options[ $key ] = $value;
	}
	function save_options() {
		update_option( $this->option_name, $this->options );
	}
}

$GLOBALS['p2'] = new P2;

function p2_get( $component = '' ) {
	global $p2;
	return empty( $component ) ? $p2 : $p2->get( $component );
}
function p2_get_option( $key ) {
	return $GLOBALS['p2']->get_option( $key );
}
function p2_set_option( $key, $value ) {
	return $GLOBALS['p2']->set_option( $key, $value );
}
function p2_save_options() {
	return $GLOBALS['p2']->save_options();
}


/**
 * ----------------------------------------------------------------------------
 * NOTE: Ideally, the rest of this file should be moved elsewhere.
 * ----------------------------------------------------------------------------
 */


$content_width = 632;

$themecolors = array(
	'bg' => 'ffffff',
	'text' => '555555',
	'link' => '3478e3',
	'border' => 'f1f1f1',
	'url' => 'd54e21',
);

register_sidebar( array(
	'name' => __( 'Sidebar', 'p2' ),
) );

// Run make_clickable later to avoid shortcode conflicts
add_filter( 'the_content', 'make_clickable', 12 );

// Content Filters

// Filter to be ran on the_content, calls the do_list function from our class
function p2_list_creator( $content ) {
	$list_creator = new P2_List_Creator;

	return $list_creator->do_list( $content );
}

// Call the filter on normal, non admin calls (this code exists in ajax.php for the special p2 instances)
if ( ! is_admin() )
	add_filter( 'pre_kses', 'p2_list_creator', 1 );
add_filter( 'pre_comment_content', 'p2_list_creator', 1 );

function p2_title( $before = '<h2>', $after = '</h2>', $echo = true ) {
	if ( is_page() )
		return;

	if ( is_single() && false === p2_the_title( '', '', false ) ) { ?>
		<h2 class="transparent-title"><?php echo the_title(); ?></h2><?php
		return true;
	} else {
		p2_the_title( $before, $after, $echo );
	}
}

/**
 * Generate a nicely formatted post title
 *
 * Ignore empty titles, titles that are auto-generated from the
 * first part of the post_content
 *
 * @package WordPress
 * @subpackage P2
 * @since 1.0.5
 *
 * @param    string    $before    content to prepend to title
 * @param    string    $after     content to append to title
 * @param    string    $echo      echo or return
 * @return   string    $out       nicely formatted title, will be boolean(false) if no title
 */
function p2_the_title( $before = '<h2>', $after = '</h2>', $echo = true ) {
	global $post;

	$temp = $post;
	$t = apply_filters( 'the_title', $temp->post_title );
	$title = $temp->post_title;
	$content = $temp->post_content;
	$pos = 0;
	$out = '';

	// Don't show post title if turned off in options or title is default text
	if ( 1 != (int) get_option( 'prologue_show_titles' ) || 'Post Title' == $title )
		return false;

	$content = trim( $content );
	$title = trim( $title );
	$title = preg_replace( '/\.\.\.$/', '', $title );
	$title = str_replace( "\n", ' ', $title );
	$title = str_replace( '  ', ' ', $title);
	$content = str_replace( "\n", ' ', strip_tags( $content) );
	$content = str_replace( '  ', ' ', $content );
	$content = trim( $content );
	$title = trim( $title );

	// Clean up links in the title
	if ( false !== strpos( $title, 'http' ) )  {
		$split = @str_split( $content, strpos( $content, 'http' ) );
		$content = $split[0];
		$split2 = @str_split( $title, strpos( $title, 'http' ) );
		$title = $split2[0];
	}

	// Avoid processing an empty title
	if ( '' == $title )
		return false;

	// Avoid processing the title if it's the very first part of the post content
	// Which is the case with most "status" posts
	$pos = strpos( $content, $title );
	if ( false === $pos || 0 < $pos ) {
		if ( is_single() )
			$out = $before . $t . $after;
		else
			$out = $before . '<a href="' . get_permalink( $temp->ID ) . '">' . $t . '&nbsp;</a>' . $after;

		if ( $echo )
			echo $out;
		else
			return $out;
	}

	return false;
}

function p2_comments( $comment, $args ) {
	$GLOBALS['comment'] = $comment;

	if ( !is_single() && get_comment_type() != 'comment' )
		return;

	$depth          = prologue_get_comment_depth( get_comment_ID() );
	$can_edit_post  = current_user_can( 'edit_post', $comment->comment_post_ID );

	$reply_link     = prologue_get_comment_reply_link(
		array( 'depth' => $depth, 'max_depth' => $args['max_depth'], 'before' => ' | ', 'reply_text' => __( 'Reply', 'p2' ) ),
		$comment->comment_ID, $comment->comment_post_ID );

	$content_class  = 'commentcontent';
	if ( $can_edit_post )
		$content_class .= ' comment-edit';

	?>
	<li id="comment-<?php comment_ID(); ?>" <?php comment_class(); ?>>
		<?php do_action( 'p2_comment' ); ?>

		<?php echo get_avatar( $comment, 32 ); ?>
		<h4>
			<?php echo get_comment_author_link(); ?>
			<span class="meta">
				<?php echo p2_date_time_with_microformat( 'comment' ); ?>
				<span class="actions">
					<a href="<?php echo esc_url( get_comment_link() ); ?>"><?php _e( 'Permalink', 'p2' ); ?></a>
					<?php
					echo $reply_link;

					if ( $can_edit_post )
						edit_comment_link( __( 'Edit', 'p2' ), ' | ' );

					?>
				</span>
			</span>
		</h4>
		<div id="commentcontent-<?php comment_ID(); ?>" class="<?php echo esc_attr( $content_class ); ?>"><?php
				echo apply_filters( 'comment_text', $comment->comment_content );

				if ( $comment->comment_approved == '0' ): ?>
					<p><em><?php esc_html_e( 'Your comment is awaiting moderation.', 'p2' ); ?></em></p>
				<?php endif; ?>
		</div>
	<?php
}

function get_tags_with_count( $post, $format = 'list', $before = '', $sep = '', $after = '' ) {
	$posttags = get_the_tags($post->ID, 'post_tag' );

	if ( !$posttags )
		return '';

	foreach ( $posttags as $tag ) {
		if ( $tag->count > 1 && !is_tag($tag->slug) ) {
			$tag_link = '<a href="' . get_term_link($tag, 'post_tag' ) . '" rel="tag">' . $tag->name . ' ( ' . number_format_i18n( $tag->count ) . ' )</a>';
		} else {
			$tag_link = $tag->name;
		}

		if ( $format == 'list' )
			$tag_link = '<li>' . $tag_link . '</li>';

		$tag_links[] = $tag_link;
	}

	return apply_filters( 'tags_with_count', $before . join( $sep, $tag_links ) . $after, $post );
}

function tags_with_count( $format = 'list', $before = '', $sep = '', $after = '' ) {
	global $post;
	echo get_tags_with_count( $post, $format, $before, $sep, $after );
}

function p2_title_from_content( $content ) {
	$title = p2_excerpted_title( $content, 8 ); // limit title to 8 full words

	// Try to detect image or video only posts, and set post title accordingly
	if ( empty( $title ) ) {
		if ( preg_match("/<object|<embed/", $content ) )
			$title = __( 'Video Post', 'p2' );
		elseif ( preg_match( "/<img/", $content ) )
			$title = __( 'Image Post', 'p2' );
	}

	return $title;
}

if ( is_admin() && ( false === get_option( 'prologue_show_titles' ) ) ) {
	add_option( 'prologue_show_titles', 1);
}

function p2_excerpted_title( $content, $word_count ) {
	$content = strip_tags( $content );
	$words = preg_split( '/([\s_;?!\/\(\)\[\]{}<>\r\n\t"]|\.$|(?<=\D)[:,.\-]|[:,.\-](?=\D))/', $content, $word_count + 1, PREG_SPLIT_NO_EMPTY );

	if ( count( $words ) > $word_count ) {
		array_pop( $words ); // remove remainder of words
		$content = implode( ' ', $words );
		$content = $content . '...';
	} else {
		$content = implode( ' ', $words );
	}

	$content = trim( strip_tags( $content ) );

	return $content;
}

function p2_fix_empty_titles( $post_ID, $post ) {

	// Don't call for anything but normal posts (avoid pages, custom taxonomy, nav menu items)
	if ( ! is_object( $post ) || 'post' !== $post->post_type )
		return;

	if ( empty( $post->post_title ) ) {
		$post->post_title = p2_title_from_content( $post->post_content );
		$post->post_modified = current_time( 'mysql' );
		$post->post_modified_gmt = current_time( 'mysql', 1 );
		return wp_update_post( $post );
	}

}
add_action( 'save_post', 'p2_fix_empty_titles', 10, 2 );

function p2_add_head_content() {
	if ( is_home() && is_user_logged_in() ) {
		include_once( ABSPATH . '/wp-admin/includes/media.php' );
	}
}
add_action( 'wp_head', 'p2_add_head_content' );

function p2_new_post_noajax() {
	if ( empty( $_POST['action'] ) || $_POST['action'] != 'post' )
	    return;

	if ( !is_user_logged_in() )
		auth_redirect();

	if ( !current_user_can( 'publish_posts' ) ) {
		wp_redirect( home_url( '/' ) );
		exit;
	}

	$current_user = wp_get_current_user();

	check_admin_referer( 'new-post' );

	$user_id        = $current_user->ID;
	$post_content   = $_POST['posttext'];
	$tags           = $_POST['tags'];

	$post_title = p2_title_from_content( $post_content );

	$post_id = wp_insert_post( array(
		'post_author'   => $user_id,
		'post_title'    => $post_title,
		'post_content'  => $post_content,
		'tags_input'    => $tags,
		'post_status'   => 'publish'
	) );

	wp_redirect( home_url( '/' ) );

	exit;
}
add_filter( 'template_redirect', 'p2_new_post_noajax' );

function iphone_css() {
if ( strstr( $_SERVER['HTTP_USER_AGENT'], 'iPhone' ) or isset($_GET['iphone']) && $_GET['iphone'] ) { ?>
<meta name="viewport" content="width=320; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
<style type="text/css">
/* <![CDATA[ */
/* iPhone CSS */
<?php $iphonecss = dirname( __FILE__ ) . '/style-iphone.css'; if ( is_file( $iphonecss ) ) require $iphonecss; ?>
/* ]]> */
</style>
<?php } }
add_action( 'wp_head', 'iphone_css' );

/*
	Modified to replace query string with blog url in output string
*/
function prologue_get_comment_reply_link( $args = array(), $comment = null, $post = null ) {
	global $user_ID;

	if ( post_password_required() )
		return;

	$defaults = array( 'add_below' => 'comment', 'respond_id' => 'respond', 'reply_text' => __( 'Reply', 'p2' ),
		'login_text' => __( 'Log in to Reply', 'p2' ), 'depth' => 0, 'before' => '', 'after' => '' );

	$args = wp_parse_args($args, $defaults);
	if ( 0 == $args['depth'] || $args['max_depth'] <= $args['depth'] )
		return;

	extract($args, EXTR_SKIP);

	$comment = get_comment($comment);
	$post = get_post($post);

	if ( 'open' != $post->comment_status )
		return false;

	$link = '';

	$reply_text = esc_html( $reply_text );

	if ( get_option( 'comment_registration' ) && !$user_ID )
		$link = '<a rel="nofollow" href="' . site_url( 'wp-login.php?redirect_to=' . urlencode( get_permalink() ) ) . '">' . esc_html( $login_text ) . '</a>';
	else
		$link = "<a rel='nofollow' class='comment-reply-link' href='". get_permalink($post). "#" . urlencode( $respond_id ) . "' onclick='return addComment.moveForm(\"" . esc_js( "$add_below-$comment->comment_ID" ) . "\", \"$comment->comment_ID\", \"" . esc_js( $respond_id ) . "\", \"$post->ID\")'>$reply_text</a>";
	return apply_filters( 'comment_reply_link', $before . $link . $after, $args, $comment, $post);
}

function prologue_comment_depth_loop( $comment_id, $depth )  {
	$comment = get_comment( $comment_id );

	if ( isset( $comment->comment_parent ) && 0 != $comment->comment_parent ) {
		return prologue_comment_depth_loop( $comment->comment_parent, $depth + 1 );
	}
	return $depth;
}

function prologue_get_comment_depth( $comment_id ) {
	return prologue_comment_depth_loop( $comment_id, 1 );
}

function prologue_comment_depth( $comment_id ) {
	echo prologue_get_comment_depth( $comment_id );
}


function prologue_poweredby_link() {
	return apply_filters( 'prologue_poweredby_link', sprintf( '<a href="%1$s" rel="generator">%2$s</a>', esc_url( __('http://wordpress.org/', 'p2') ), sprintf( __('Proudly powered by %s.', 'p2'), 'WordPress' ) ) );
}

/* Custom Header Code */
define( 'HEADER_TEXTCOLOR', '3478E3' );
define( 'HEADER_IMAGE', '' ); // %s is theme dir uri
define( 'HEADER_IMAGE_WIDTH', 980);
define( 'HEADER_IMAGE_HEIGHT', 120);

function p2_admin_header_style() {
?>
	<style type="text/css">
	#headimg {
		background: url(<?php header_image(); ?>) repeat;
		height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
		width:<?php echo HEADER_IMAGE_WIDTH; ?>px;
		padding:0 0 0 18px;
	}
	#headimg a {
		height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
		width:<?php echo HEADER_IMAGE_WIDTH; ?>px;
	}

	#headimg h1{
		padding-top:40px;
		margin: 0;
		font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, sans-serif;
		font-weight: 200;
	}
	#headimg h1 a {
		color:#<?php header_textcolor(); ?>;
		text-decoration: none;
		border-bottom: none;
		font-size: 1.4em;
		margin: -0.4em 0 0 0;
	}
	#headimg #desc{
		color:#<?php header_textcolor(); ?>;
		font-size:1.1em;
		margin-top:1em;
		font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, sans-serif;
		font-weight: 200;
	}

	<?php if ( 'blank' == get_header_textcolor() ) { ?>
	#headimg h1, #headimg #desc {
		display: none;
	}
	#headimg h1 a, #headimg #desc {
		color:#<?php echo HEADER_TEXTCOLOR ?>;
	}
	<?php } ?>

	</style>
<?php
}

function p2_header_style() {
?>
	<style type="text/css">
		<?php if ( '' != get_header_image() ) : ?>
		#header {
			background: url(<?php header_image(); ?>) repeat;
			height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
		}
		#header a.secondary {
			height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
			width:<?php echo HEADER_IMAGE_WIDTH; ?>px;
			display: block;
			position: absolute;
			top: 0;
		}
		#header a.secondary:hover {
			border: 0;
		}
		#header .sleeve {
			position: relative;
			margin-top: 0;
			margin-right: 0;
			background-color: transparent;
			box-shadow: none !important;
			-webkit-box-shadow: none !important;
			-moz-box-shadow: none !important;
			height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
		}
		#header {
			box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2) !important;
			-webkit-box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2) !important;
			-moz-box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2) !important;
		}
		<?php endif; ?>
		<?php if ( 'blank' == get_header_textcolor() ) { ?>
		#header h1, #header small {
			padding: 0;
			text-indent: -1000em;
		}
		<?php } else { ?>
		#header h1 a, #header small {
			color: #<?php header_textcolor(); ?>;
		}
		<?php } ?>
	</style>
<?php
}
add_custom_image_header( 'p2_header_style', 'p2_admin_header_style' );

function p2_background_color() {
	$background_color = get_option( 'p2_background_color' );

	if ( '' != $background_color ) :
	?>
	<style type="text/css">
		body {
			background-color: <?php esc_attr_e( $background_color ); ?>;
		}
	</style>
	<?php endif;
}
add_action( 'wp_head', 'p2_background_color' );

function p2_background_image() {
	$p2_background_image = get_option( 'p2_background_image' );

	if ( 'none' == $p2_background_image || '' == $p2_background_image )
		return false;

?>
	<style type="text/css">
		body {
			background-image: url( <?php echo get_template_directory_uri() . '/i/backgrounds/pattern-' . $p2_background_image . '.png' ?> );
		}
	</style>
<?php
}
add_action( 'wp_head', 'p2_background_image' );

function p2_hidden_sidebar_css() {
	$hide_sidebar = get_option( 'p2_hide_sidebar' );
		$sleeve_margin = ( is_rtl() ) ? 'margin-left: 0;' : 'margin-right: 0;';
	if ( '' != $hide_sidebar ) :
	?>
	<style type="text/css">
		.sleeve_main { <?php echo $sleeve_margin;?> }
		#wrapper { background: transparent; }
		#header, #footer, #wrapper { width: 760px; }
	</style>
	<?php endif;
}
add_action( 'wp_head', 'p2_hidden_sidebar_css' );

// Network signup form
function p2_before_signup_form() {
	echo '<div class="sleeve_main"><div id="main">';
}
add_action( 'before_signup_form', 'p2_before_signup_form' );

function p2_after_signup_form() {
	echo '</div></div>';
}
add_action( 'after_signup_form', 'p2_after_signup_form' );

// Enable background
add_custom_background();

// Feed me
add_theme_support( 'automatic-feed-links' );