<?php
/*
 * Laconica - a distributed open-source microblogging tool
 * Copyright (C) 2008, Controlez-Vous, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.	 If not, see <http://www.gnu.org/licenses/>.
 */

if (!defined('LACONICA')) { exit(1); }

require_once(INSTALLDIR.'/extlib/facebook/facebook.php');

class FacebookAction extends Action {

	function handle($args) {
		parent::handle($args);
	}

	function get_facebook() {
		$apikey = common_config('facebook', 'apikey');
		$secret = common_config('facebook', 'secret');
		return new Facebook($apikey, $secret);
	}

	function update_profile_box($facebook, $fbuid, $user) {

		$notice = $user->getCurrentNotice();

		# Need to include inline CSS for styling the Profile box

		$style = '<style>
		#notices {
		clear: both;
		margin: 0 auto;
		padding: 0;
		list-style-type: none;
		width: 600px;
		border-top: 1px solid #dec5b5;
		}
		#notices a:hover {
		text-decoration: underline;
		}
		.notice_single {
		clear: both;
		display: block;
		margin: 0;
		padding: 5px 5px 5px 0;
		min-height: 48px;
		font-family: Georgia, "Times New Roman", Times, serif;
		font-size: 13px;
		line-height: 16px;
		border-bottom: 1px solid #dec5b5;
		background-color:#FCFFF5;
		opacity:1;
		}
		.notice_single:hover {
		background-color: #f7ebcc;
		}
		.notice_single p {
		display: inline;
		margin: 0;
		padding: 0;
		}
		</style>';

		$html = $this->render_notice($notice);

		$fbml = "<fb:wide>$content $html</fb:wide>";
		$fbml .= "<fb:narrow>$content $html</fb:narrow>";

		$fbml_main = "<fb:narrow>$content $html</fb:narrow>";

		$facebook->api_client->profile_setFBML(NULL, $fbuid, $fbml, NULL, NULL, $fbml_main);
	}

	# Display methods

	function show_header($selected ='Home') {

		# Add a timestamp to the CSS file so Facebook cache wont ignore our changes
		$ts = filemtime(theme_file('facebookapp.css'));
		$cssurl = theme_path('facebookapp.css') . "?ts=$ts";

	 	$header = '<link rel="stylesheet" type="text/css" href="'. $cssurl . '" />';
	 	# $header .='<script src="" ></script>';
	  	$header .= '<fb:dashboard/>';

	  	$header .=
			'<fb:tabs>'
			.'<fb:tab-item title="Home" href="index.php" selected="' . ($selected == 'Home') .'" />'
			.'<fb:tab-item title="Invite Friends"  href="invite.php" selected="' . ($selected == 'Invite') . '" />'
			.'<fb:tab-item title="Settings"	 href="settings.php" selected="' . ($selected == 'Settings') . '" />'
			.'</fb:tabs>';
	  	$header .= '<div id="main_body">';

	  echo $header;

	}

	function show_footer() {
	  $footer = '</div>';
	  echo $footer;
	}

	function show_login_form() {

		$loginform =
			' <h2>To add the Identi.ca application, you need to log into your Identi.ca account.</h2>'
			.'<a href="http://identi.ca/">'
			.'	<img src="http://theme.identi.ca/identica/logo.png" alt="Identi.ca" id="logo"/>'
			.'</a>'
			.'<h1 class="pagetitle">Login</h1>'
			.'<div class="instructions">'
			.'	<p>Login with your username and password. Don\'t have a username yet?'
			.'	  <a href="http://identi.ca/main/register">Register</a> a new account.'
			.'	</p>'
			.'</div>'
			.'<div id="content">'
			.'	<form method="post" id="login">'
			.'	  <p>'
			.'		<label for="nickname">Nickname</label>'
			.'		<input name="nickname" type="text" class="input_text" id="nickname"/>'
			.'	  </p>'
			.'	  <p>'
			.'		  <label for="password">Password</label>'
			.'		<input name="password" type="password" class="password" id="password"/>'
			.'	  </p>'
			.'	  <p>'
			.'		<input type="submit" id="submit" name="submit" class="submit" value="Login"/>'
			.'	  </p>'
			.'	</form>'
			.'	<p>'
			.'	  <a href="http://identi.ca/main/recoverpassword">Lost or forgotten password?</a>'
			.'	</p>'
			.'</div';

			echo $loginform;
	}

	function render_notice($notice) {

		global $config;

		$profile = $notice->getProfile();
		$avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);

		$noticeurl = common_local_url('shownotice', array('notice' => $notice->id));

		# XXX: we need to figure this out better. Is this right?
		if (strcmp($notice->uri, $noticeurl) != 0 && preg_match('/^http/', $notice->uri)) {
			$noticeurl = $notice->uri;
		}

		$html =
		'<li class="notice_single" id="' . $notice->id . '">'
		.'<a href="' . $profile->profileurl . '">'
		.'<img src="';

		if ($avatar) {
			$html .= common_avatar_display_url($avatar);
		} else {
			$html .= common_default_avatar(AVATAR_STREAM_SIZE);
		}

		$html .=
		'" class="avatar stream" width="'
		. AVATAR_STREAM_SIZE . '" height="' . AVATAR_STREAM_SIZE .'"'
		.' alt="';

		if ($profile->fullname) {
			$html .= $profile->fullname;
		} else {
			$html .= $profile->nickname;
		}

		$html .=
		'"></a>'
		.'<a href="' .	$profile->profileurl . '" class="nickname">' . $profile->nickname . '</a>'
		.'<p class="content">' . $notice->rendered . '</p>'
		.'<p class="time">'
		.'<a class="permalink" href="' . $noticeurl . '" title="' . common_exact_date($notice->created) . '">' . common_date_string($notice->created) . '</a>';

		if ($notice->source) {
			$html .= _(' from ');
			$html .= $this->source_link($notice->source);
		}

		if ($notice->reply_to) {
			$replyurl = common_local_url('shownotice', array('notice' => $notice->reply_to));
			$html .=
			' (<a class="inreplyto" href="' . $replyurl . '">' . _('in reply to...') . ')';
		}

		$html .= '</p></li>';

		return $html;
	}

	function source_link($source) {
		$source_name = _($source);

		$html = '<span class="noticesource">';

		switch ($source) {
		 case 'web':
		 case 'xmpp':
		 case 'mail':
		 case 'omb':
		 case 'api':
			$html .= $source_name;
			break;
		 default:
			$ns = Notice_source::staticGet($source);
			if ($ns) {
				$html .= '<a href="' . $ns->url . '">' . $ns->name . '</a>';
			} else {
				$html .= $source_name;
			}
			break;
		}

		$html .= '</span>';

		return $html;
	}

	function pagination($have_before, $have_after, $page, $fbaction, $args=NULL) {

		$html = '';

		if ($have_before || $have_after) {
			$html = '<div id="pagination">';
			$html .'<ul id="nav_pagination">';
		}

		if ($have_before) {
			$pargs = array('page' => $page-1);
			$newargs = ($args) ? array_merge($args,$pargs) : $pargs;
			$html .= '<li class="before">';
			$html .'<a href="' . $this->pagination_url($fbaction, $newargs) . '">' . _('« After') . '</a>';
			$html .'</li>';
		}

		if ($have_after) {
			$pargs = array('page' => $page+1);
			$newargs = ($args) ? array_merge($args,$pargs) : $pargs;
			$html .= '<li class="after">';
			$html .'<a href="' . $this->pagination_url($fbaction, $newargs) . '">' . _('Before »') . '</a>';
			$html .'</li>';
		}

		if ($have_before || $have_after) {
			$html .= '<ul>';
			$html .'<div>';
		}
	}

	function pagination_url($fbaction, $args=NULL) {
		global $config;

		$extra = '';

		if ($args) {
			foreach ($args as $key => $value) {
				$extra .= "&${key}=${value}";
			}
		}

		return "$fbaction?${extra}";
	}

}