<?php
/**
 * Plugin Name: CS Plugin Template
 * Description: ...
 * Author: Martin Pultz
 * Version: 1.0
 * Author URI: http://www.casensitive.ca
 */

define('CS_VERSION', 1.0);
define('CS_PLUGIN_URL', plugin_dir_url( __FILE__ ));

if (!class_exists("CSPI_plugin"))
{
	class CSPI_plugin
	{
		// unique admin options
		var $adminOptionsName = 'CSPI_PluginOptions';
		var $adminUsersName = 'CSPI_PluginAdminUsersOptions';

		// constructor
		function CSPI_plugin()
		{

		} // end function CSPI_plugin()

		function init()
		{
			// store defaults on plugin activation
			$this->getAdminOptions();
		} // end function init()

		function getAdminOptions()
		{
			// assign defaults for admin options
			$cs_adminOptions = array('show_header' => true,
				'add_content' => true,
				'comment_author' => true,
				'content' => '');

			// attempt to find previous options that may have been stored
			$cs_options = get_option($this->adminOptionsName);
			if(!empty($cs_options))
			{
				// overwrite default options
				foreach($cs_options as $key => $option)
					$cs_adminOptions[$key] = $option;
			}
			// store options in wp database
			update_option($this->adminOptionsName, $cs_adminOptions);
			return $cs_adminOptions;
		} // end function getAdminOptions()

		function printAdminPage()
		{
			$cs_options = $this->getAdminOptions();

			// load admin options
			if (isset($_POST['update_cs_plugin']))
			{
				if (isset($_POST['cs_header']))
				{
					$cs_options['show_header'] = $_POST['cs_header'];
				}

				if (isset($_POST['cs_addContent']))
				{
					$cs_options['add_content'] = $_POST['cs_addContent'];
				}

				if (isset($_POST['cs_author']))
				{
					$cs_options['comment_author'] = $_POST['cs_author'];
				}

				if (isset($_POST['cs_content']))
				{
					$cs_options['content'] = apply_filters('content_save_pre', $_POST['cs_Content']);
				}

				update_option($this->adminOptionsName, $cs_options);
				?>

				<div class="updated">
					<p><strong><?php _e("Settings Updated.", "CSPI_plugin");?></strong></p>
				</div>

				<div class=wrap>
					<form method="post" action="<?php echo $_SERVER["REQUEST_URI"]; ?>">
						<h2>CSPI Plugin</h2>
						<h3>Content to Add to the End of a Post</h3>
						<textarea name="cs_content" style="width: 80%; height: 100px;"><?php _e(apply_filters('format_to_edit',$devOptions['content']), 'CSPI_plugin') ?></textarea>
						<h3>Allow Comment Code in the Header?</h3>
						<p>Selecting "No" will disable the comment code inserted in the header.</p>
						<p><label for="cs_header_yes">
							<input type="radio" id="cs_header_yes" name="cs_header" value="true" <?php if($devOptions['show_header'] == "true") { _e('checked="checked"', "CSPI_plugin"); }?> /> Yes</label>&nbsp;&nbsp;&nbsp;&nbsp;
						   <label for="cs_header_no">
						   	<input type="radio" id="cs_header_no" name="cs_header" value="false" <?php if ($devOptions['show_header'] == "false") { _e('checked="checked"', "CSPI_plugin"); }?>/> No</label></p>
						<h3>Allow Content Added to the End of a Post?</h3>
						<p>Selecting "No" will disable the content from being added into the end of a post.</p>
						<p><label for="cs_addContent_yes">
							<input type="radio" id="cs_addContent_yes" name="cs_addContent" value="true" <?php if ($devOptions['add_content'] == "true") { _e('checked="checked"', "CSPI_plugin"); }?> /> Yes</label>&nbsp;&nbsp;&nbsp;&nbsp;
						   <label for="cs_addContent_no">
							<input type="radio" id="cs_addContent_no" name="cs_addContent" value="false" <?php if ($devOptions['add_content'] == "false") { _e('checked="checked"', "CSPI_plugin"); }?>/> No</label></p>
						<h3>Allow Comment Authors to be Uppercase?</h3>
						<p>Selecting "No" will leave the comment authors alone.</p>
						<p><label for="cs_author_yes">
							<input type="radio" id="cs_author_yes" name="cs_author" value="true" <?php if($devOptions['comment_author'] == "true") { _e('checked="checked"', "CSPI_plugin"); }?> /> Yes</label>&nbsp;&nbsp;&nbsp;&nbsp;
						   <label for="cs_author_no">
							<input type="radio" id="cs_author_no" name="cs_author" value="false" <?php if($devOptions['comment_author'] == "false") { _e('checked="checked"', "CSPI_plugin"); }?>/> No</label></p>
						<div class="submit">
							<input type="submit" name="update_cs_plugin" value="<?php _e('Update Settings', 'CSPI_plugin') ?>" /></div>
					</form>
				</div>

				<?php
			}
		} // end printAdminPage()

		function addHeaderCode()
		{
			?><!-- CSPI_Plugin --><?php

		} // end function addHeaderCode()

		function addContent($content='')
		{
			$content = '<p>CSPI Plugin</p>';
			return $content;
		} // end function addContent()

		function authorUpperCase($author='')
		{
			return strtoupper($author);
		} // end function authorUpperCase()
	}

} // end Class CSPI_plugin

if( class_exists("CSPI_plugin") )
{
	$cspi_plugin = new CSPI_plugin();
}

// initialize admin panel
if ( !function_exists("CSPI_plugin_ap") )
{
	function CSPI_plugin_ap()
	{
		global $cs_plugin;
		// does $cs_plugin exist?
		if (!isset($cs_plugin)) return;

		//
		if (function_exists('add_options_page'))
		{
			// WP: add_options_page(page title, menu title, access_level/capability, file, [function])
			add_options_page('CSPI Plugin', 'CSPI Plugin Page', 9,
				basename(__FILE__), array(&$cs_plugin, 'printAdminPage'));
		}
	}
}

// actions and filters
if( isset($cspi_plugin) )
{
	/**
	 * Actions
	 */

	// run initialization when plugin is activated
	add_action('activate_plugin/plugin.php', array(&$cspi_plugin));

	// insert code into <head>
	add_action('wp_head', array(&$cspi_plugin, 'addHeaderCode'), 1);

	// run admin panel page
	add_action('admin_menu', 'CSPI_plugin_ap');

	/**
	 * Filters
	 */
	//
	add_filter('the_content', array(&$cspi_plugin, 'addContent'));

	//
	add_filter('get_comment_author', array(&$cspi_plugin, 'authorUpperCase'));
}

/* END OF FILE */