<?php

global $CONFIG;
$rid = get_input('resourceid');
$id = $rid;
$success = false;
if ( substr($rid, 0, 5) == 'local' ) {
    $obj = waramu_getLocal($rid);
    $ridraw = split(":", $rid);
    $id = $ridraw[1];
    // Owner, suitable Subject Moderator and Editor can delete
    if ( $obj->hasPermissionTo("edit") ) {
        delete_data("DELETE FROM {$CONFIG->dbprefix}koolielu_waramu_queue WHERE ID=$id");
        $success = true;
    }
} else {
    $obj = waramu_getResource("", $rid);
    if ( $obj->hasPermissionTo("edit") ) {
        $w = waramu_get();
        $au = buildAppUser(get_loggedin_user());
        $w->deleteResource($au, $rid);
        // TODO: catch exceptions
        $success = true;
    }
}


if ( $success ) {
    // delete info from tables by id;
    delete_data("DELETE FROM {$CONFIG->dbprefix}koolielu_waramu_resources WHERE waramu_id='$id'");
    delete_data("DELETE FROM {$CONFIG->dbprefix}koolielu_resource_stats WHERE waramu_id='$id'");
    delete_data("DELETE FROM {$CONFIG->dbprefix}koolielu_resources_quality_marks WHERE waramu_id='$id'");
    delete_data("DELETE FROM {$CONFIG->dbprefix}koolielu_favorite_resources WHERE waramu_id='$id'");
    $resource_collections = get_entities_from_metadata("resources", $id, "object", "collection");
    foreach ($resource_collections as $collection) {
        if ($collection) {
            $resources = $collection->resources;
            if (is_string($resources)) {
                $resources = array($resources);
            }
            foreach ($resources as $key => $res) {
                if ($res == $id) {
                    unset($resources[$key]);
                    $collection->resources = $resources;
                    $collection->needs_update = 1;
                    $collection->save();
                }
            }
        }
    }
    /*translation:Learning resource deleted!*/
    system_messages(elgg_echo("koolielu:learning_resource_deleted"), "errors");
    forward($CONFIG->wwwroot.'pg/waramu');
} else {
    /*translation:You cannot delete this resource!*/
    system_messages(elgg_echo("koolielu:you_cannot_delete"), "errors");
    forward($CONFIG->wwwroot.'pg/waramu/view/'.$rid);
}
?>