<?php

function poster_init() {
    
    // load system configuration
    global $CONFIG;
    
    register_entity_type('object', 'job_offering');
    register_entity_type('object', 'job_wanted_ad');
    register_entity_type('object', 'course');
    register_entity_url_handler('poster_entity_url', 'object', 'job_offering');
    register_entity_url_handler('poster_entity_url', 'object', 'job_wanted_ad');
    register_entity_url_handler('poster_entity_url', 'object', 'course');
    // Register custom permission hook
    register_plugin_hook('permissions_check','object','poster_can_edit');
    // register a page handler, so we can have nice URLs
    register_page_handler('poster','poster_page_handler');
    register_plugin_hook('entity:icon:url', 'object', 'poster_usericon_hook');
    /*translation:Latest advertisements*/
    add_widget_type("latest_ads_widget", elgg_echo("koolielu:widget:latestads"),
        /*translation:Displays portal latest advertisements*/
        elgg_echo("koolielu:widget:latestads:expl"));
    /*translation:My latest advertisements*/
    add_widget_type("my_ads_widget", elgg_echo("koolielu:widget:mylatestads"),
        /*translation:Displays your latest advertisements*/
        elgg_echo("koolielu:widget:mylatestads:expl"));
    /*translation:Pending advertisements*/
    add_widget_type('pending_ads_widget', elgg_echo("koolielu:widget:pendingadvertisements"),
        /*translation:Displays advertisements that need moderating*/
        elgg_echo("koolielu:widget:pendingadvertisements:expl"));
    // register cron hook
    register_plugin_hook('cron', 'daily', 'archive_old_ads');
    
}

function poster_entity_url($entity) {
    global $CONFIG;
    $title = friendly_title($entity->title);
    return $CONFIG->url . "pg/poster/read/" . $entity->getGUID() . "/" . $title;
}

function poster_page_handler($page) {
    global $CONFIG;
    switch ($page[0]) {
    case "job_offers":
        include($CONFIG->pluginspath . "poster/job_offers.php");
        break;
    case "job_wanted_ads":
        include($CONFIG->pluginspath . "poster/job_wanted_ads.php");
        break;
    case "courses":
        include($CONFIG->pluginspath . "poster/courses.php");
        break;
    case "job_ads":
        include($CONFIG->pluginspath . "poster/job_ads.php");
        break;
    case "unapproved":
        include($CONFIG->pluginspath . "poster/unapproved_ads.php");
        break;
    case "archive":
        include($CONFIG->pluginspath . "poster/archive.php");
        break;
    case "my_ads":
        include($CONFIG->pluginspath . "poster/my_ads.php");
        break;
    case "add_job_advertisement":
        include($CONFIG->pluginspath . "poster/add_job_offering.php");
        break;
    case "edit_job_advertisement":
        set_input('entity_guid', $page[1]);
        include($CONFIG->pluginspath . "poster/add_job_offering.php");
        break;
    case "add_course":
        include($CONFIG->pluginspath . "poster/add_course.php");
        break;
    case "read":
        set_input('entity_guid', $page[1]);
        include($CONFIG->pluginspath . "poster/read.php");
        break;
    case "edit_course":
        set_input('course_guid', $page[1]);
        include($CONFIG->pluginspath . "poster/add_course.php");
        break;
    default:
        include($CONFIG->pluginspath . "poster/index.php");
    }
    return true;
}

function poster_pagesetup() {
    global $CONFIG;
	//add submenu options
    if (get_context() == "poster") {
        /*translation:Job offers*/
        add_submenu_item(elgg_echo('koolielu:Job_offers'),$CONFIG->wwwroot."pg/poster/job_offers");
        /*translation:Job search*/
        add_submenu_item(elgg_echo('koolielu:Job_search'),$CONFIG->wwwroot."pg/poster/job_wanted_ads");
        /*translation:Courses*/
        add_submenu_item(elgg_echo('koolielu:Courses'),$CONFIG->wwwroot."pg/poster/courses");
        if (isloggedin()) {
            /*translation:My ads*/
            add_submenu_item(elgg_echo('koolielu:My_ads'),$CONFIG->wwwroot."pg/poster/my_ads");
            /*translation:Add job advertisement*/
            add_submenu_item(elgg_echo('koolielu:Add_job_advertisement'),$CONFIG->wwwroot."pg/poster/add_job_advertisement");
            /*translation:Add course*/
            add_submenu_item(elgg_echo('koolielu:Add_course'),$CONFIG->wwwroot."pg/poster/add_course");
        }
        if (isEditor() || isadminloggedin()) {
            /*translation:Unapproved ads*/
            add_submenu_item(elgg_echo('koolielu:Unapproved_ads'),$CONFIG->wwwroot."pg/poster/unapproved");
	    }
        if (isadminloggedin()) {
            /*translation:Archive*/
            add_submenu_item(elgg_echo('koolielu:Archive'),$CONFIG->wwwroot."pg/poster/archive");
        }
	}
}

function poster_can_edit($hook_name, $entity_type, $return_value, $parameters) {
    // Any Editor or above role should be able to edit
    if (isEditor()) {
        return true;
    }
    return null;
}

function poster_usericon_hook($hook, $entity_type, $returnvalue, $params) {
    global $CONFIG;

    if ((!$returnvalue) && ($hook == 'entity:icon:url')) {
        
        $entity = $params['entity'];
        $type = $entity->type;
        $subtype = get_subtype_from_id($entity->subtype);
        
        if ($type == "object" && in_array($subtype, array("course", "job_offering", "job_wanted_ad"))) {
            return $CONFIG->wwwroot . "/mod/koolielu/views/default/_graphics/subtype_icon_". $subtype .".png";
        }
    }
}

function archive_old_ads($hook, $entity_type, $returnvalue, $params) {
    // log in as admin or else it's not possible to change entities
    login(get_entity(2));
    $ads = get_entities_from_metadata_and_subtypes(array("approved" => 1, "archived" => 0), "object", array("course", "job_offering", "job_wanted_ad"), "", 99999);
    $current_time = time();
    foreach ($ads as $ad) {
        //check is ending date passed
        $ad_end = $ad->ending_date;
        $ad_created = $ad->time_created;
        if ($ad_end && (($ad_end + 86400) <= $current_time)) {
            $ad->archived = 1;
            $ad->access_id = 0;
            $ad->frontpage = 0;
            $ad->save();
        }
        // or older than two months
        if (!$ad_end && (strtotime("+2 month", $ad_created) < $current_time)) {
            $ad->archived = 1;
            $ad->access_id = 0;
            $ad->frontpage = 0;
            $ad->save();
        }
    }
    logout();
}


register_elgg_event_handler('init', 'system', 'poster_init');
register_elgg_event_handler('pagesetup','system','poster_pagesetup');

// register actions
global $CONFIG;
register_action("poster/add_job_offering",false,$CONFIG->pluginspath . "poster/actions/add_job_offering.php");
register_action("poster/edit_job_offering",false,$CONFIG->pluginspath . "poster/actions/edit_job_ad.php");
register_action("poster/delete_job_ad",false,$CONFIG->pluginspath . "poster/actions/delete_job_ad.php");
register_action("poster/review_object", false, $CONFIG->pluginspath . "poster/actions/review_object.php");
register_action("poster/add_course", false, $CONFIG->pluginspath . "poster/actions/add_course.php");
register_action("poster/edit_course", false, $CONFIG->pluginspath . "poster/actions/edit_course.php");
register_action("poster/delete_course", false, $CONFIG->pluginspath . "poster/actions/delete_course.php");
register_action("poster/goedit", false, $CONFIG->pluginspath . "poster/actions/goedit.php");
register_action("poster/forward", false, $CONFIG->pluginspath . "poster/actions/forward.php");
register_action("poster/show_in_frontpage", false, $CONFIG->pluginspath . "poster/actions/frontpage.php");
register_action("poster/filter", true, $CONFIG->pluginspath . "poster/actions/filter.php");

?>