<?php

require_once('include/items.php');
require_once('include/conversation.php');
require_once('include/page_widgets.php');

function page_init(&$a) {
	// We need this to make sure the channel theme is always loaded.

	$which = argv(1);
	$profile = 0;
	profile_load($a,$which,$profile);


	if($a->profile['profile_uid'])
		head_set_icon($a->profile['thumb']);
	
	// load the item here in the init function because we need to extract
	// the page layout and initialise the correct theme.


	$observer = $a->get_observer();
	$ob_hash = (($observer) ? $observer['xchan_hash'] : '');


	// perm_is_allowed is denied unconditionally when 'site blocked to unauthenticated members'. 
	// This bypasses that restriction for sys channel (public) content

	if((! perm_is_allowed($a->profile['profile_uid'],$ob_hash,'view_pages')) && (! is_sys_channel($a->profile['profile_uid']))) {
		notice( t('Permission denied.') . EOL);
		return;
	}

	if(argc() < 3) {
		notice( t('Invalid item.') . EOL);
		return;
	}

	$channel_address = argv(1);

	// The page link title was stored in a urlencoded format
	// php or the browser may/will have decoded it, so re-encode it for our search

	$page_id = urlencode(argv(2));

	$u = q("select channel_id from channel where channel_address = '%s' limit 1",
		dbesc($channel_address)
	);

	if(! $u) {
		notice( t('Channel not found.') . EOL);
		return;
	}

	if($_REQUEST['rev'])
		$revision = " and revision = " . intval($_REQUEST['rev']) . " ";
	else
		$revision = " order by revision desc ";

	require_once('include/security.php');
	$sql_options = item_permissions_sql($u[0]['channel_id']);

	$r = q("select item.* from item left join item_id on item.id = item_id.iid
		where item.uid = %d and sid = '%s' and (( service = 'WEBPAGE' and item_type = %d ) 
		OR ( service = 'PDL' AND item_type = %d )) $sql_options $revision limit 1",
		intval($u[0]['channel_id']),
		dbesc($page_id),
		intval(ITEM_TYPE_WEBPAGE),
		intval(ITEM_TYPE_PDL)
	);
	if(! $r) {

		// Check again with no permissions clause to see if it is a permissions issue

		$x = q("select item.* from item left join item_id on item.id = item_id.iid
		where item.uid = %d and sid = '%s' and service = 'WEBPAGE' and 
		item_type = %d $revision limit 1",
			intval($u[0]['channel_id']),
			dbesc($page_id),
			intval(ITEM_TYPE_WEBPAGE)
		);

		if($x) {
			// Yes, it's there. You just aren't allowed to see it.
			notice( t('Permission denied.') . EOL);
		}
		else {
			notice( t('Page not found.') . EOL);
		}
		return;
	}

	if($r[0]['title'])
		$a->page['title'] = escape_tags($r[0]['title']);

	if($r[0]['item_type'] == ITEM_TYPE_PDL) {
		require_once('include/comanche.php');
		comanche_parser(get_app(),$r[0]['body']);
			get_app()->pdl = $r[0]['body'];
	}
	elseif($r[0]['layout_mid']) {
		$l = q("select body from item where mid = '%s' and uid = %d limit 1",
			dbesc($r[0]['layout_mid']),
			intval($u[0]['channel_id'])
		);

		if($l) {
			require_once('include/comanche.php');
			comanche_parser(get_app(),$l[0]['body']);
			get_app()->pdl = $l[0]['body'];
		}
	}

	$a->data['webpage'] = $r;

}


function page_content(&$a) {

	$r = $a->data['webpage'];
	if(! $r)
		return;

	if($r[0]['item_type'] == ITEM_TYPE_PDL) {
		$r[0]['body'] = t('Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.');
		$r[0]['mimetype'] = 'text/plain';
		$r[0]['title'] = '';
		
	}

	xchan_query($r);
	$r = fetch_post_tags($r,true);

	if($r[0]['mimetype'] === 'application/x-pdl')
		$a->page['pdl_content'] = true;

	$o .= prepare_page($r[0]);
	return $o;

}