<?php
/* For licensing terms, see /license.txt */
/**
 * @package chamilo.webservices
 */
require_once __DIR__.'/../inc/global.inc.php';
require_once __DIR__.'/../forum/forumfunction.inc.php';
require_once __DIR__.'/cm_webservice.php';

/**
 * Description of cm_soap_inbox.
 *
 * @author marcosousa
 */
class WSCMForum extends WSCM
{
    public function get_foruns_id($username, $password, $course_code)
    {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $course_db = api_get_course_info($course_code);
            $foruns_info = get_forums($id = '', $course_db['code']);
            $foruns_id = '#';
            foreach ($foruns_info as $forum) {
                if (isset($forum['forum_id'])) {
                    $foruns_id .= $forum['forum_id']."#";
                }
            }

            return $foruns_id;
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_forum_title(
        $username,
        $password,
        $course_code,
        $forum_id
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $course_db = api_get_course_info($course_code);
            $table_forums = Database::get_course_table(TABLE_FORUM, $course_db['db_name']);
            $table_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY, $course_db['db_name']);

            $sql = "SELECT * FROM ".$table_forums." forums, ".$table_item_property." item_properties
                            WHERE item_properties.tool='".TOOL_FORUM."'
                            AND item_properties.ref='".Database::escape_string($forum_id)."'
                            AND forums.forum_id='".Database::escape_string($forum_id)."'";
            $result = Database::query($sql);
            $forum_info = Database::fetch_array($result);
            $forum_info['approval_direct_post'] = 0; // we can't anymore change this option, so it should always be activated

            $forum_title = utf8_decode($forum_info['forum_title']);

            return $forum_title;
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_forum_threads_id(
        $username,
        $password,
        $course_code,
        $forum_id
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $threads_info = get_threads($forum_id);
            $threads_id = '#';
            foreach ($threads_info as $thread) {
                if (isset($thread['thread_id'])) {
                    $threads_id .= $thread['thread_id']."#";
                }
            }

            return $threads_id;
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_forum_thread_data(
        $username,
        $password,
        $course_code,
        $thread_id,
        $field
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $course_db = api_get_course_info($course_code);
            $table_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY, $course_db['db_name']);
            $table_threads = Database::get_course_table(TABLE_FORUM_THREAD, $course_db['db_name']);

            $sql = "SELECT * FROM ".$table_threads." threads, ".$table_item_property." item_properties
                            WHERE item_properties.tool='".TOOL_FORUM_THREAD."'
                            AND item_properties.ref='".Database::escape_string($thread_id)."'
                            AND threads.thread_id='".Database::escape_string($thread_id)."'";
            $result = Database::query($sql);
            $thread_info = Database::fetch_array($result);

            switch ($field) {
                case 'title':
                    $htmlcode = true;
                    $field_table = "thread_title";
                    break;
                case 'date':
                    $field_table = "thread_date";
                    break;
                case 'sender':
                    $field_table = "insert_user_id";
                    break;
                case 'sender_name':
                    $user_id = $thread_info['insert_user_id'];
                    $user_info = api_get_user_info($user_id);

                    return $user_info['firstname'];
                    break;
                default:
                    $field_table = "title";
            }

            return $thread_info[$field_table];
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_forum_thread_title(
        $username,
        $password,
        $course_code,
        $thread_id
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $course_db = api_get_course_info($course_code);
            $table_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY, $course_db['db_name']);
            $table_threads = Database::get_course_table(TABLE_FORUM_THREAD, $course_db['db_name']);

            $sql = "SELECT * FROM ".$table_threads." threads, ".$table_item_property." item_properties
                            WHERE item_properties.tool='".TOOL_FORUM_THREAD."'
                            AND item_properties.ref='".Database::escape_string($thread_id)."'
                            AND threads.thread_id='".Database::escape_string($thread_id)."'";
            $result = Database::query($sql);
            $thread_info = Database::fetch_array($result);

            $htmlcode = true;
            $field_table = "thread_title";

            return $thread_info[$field_table];
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_posts_id($username, $password, $course_code, $thread_id)
    {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $course_db = api_get_course_info($course_code);

            $table_users = Database::get_main_table(TABLE_MAIN_USER);
            $table_posts = Database::get_course_table(TABLE_FORUM_POST, $course_db['db_name']);

            // note: change these SQL so that only the relevant fields of the user table are used
            if (api_is_allowed_to_edit(null, true)) {
                $sql = "SELECT * FROM $table_posts posts
                                    LEFT JOIN  $table_users users
                                            ON posts.poster_id=users.user_id
                                    WHERE posts.thread_id='".Database::escape_string($thread_id)."'
                                    ORDER BY posts.post_id ASC";
            } else {
                // students can only se the posts that are approved (posts.visible='1')
                $sql = "SELECT * FROM $table_posts posts
                                    LEFT JOIN  $table_users users
                                            ON posts.poster_id=users.user_id
                                    WHERE posts.thread_id='".Database::escape_string($thread_id)."'
                                    AND posts.visible='1'
                                    ORDER BY posts.post_id ASC";
            }
            $result = Database::query($sql);
            while ($row = Database::fetch_array($result)) {
                $posts_info[] = $row;
            }

            $posts_id = '#';

            foreach ($posts_info as $post) {
                if (isset($post['post_id'])) {
                    $posts_id .= $post['post_id']."#";
                }
            }

            return $posts_id;
        } else {
            return get_lang('InvalidId');
        }
    }

    public function get_post_data(
        $username,
        $password,
        $course_code,
        $post_id,
        $field
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $table_posts = Database::get_course_table(TABLE_FORUM_POST);
            $table_users = Database::get_main_table(TABLE_MAIN_USER);

            $sql = "SELECT * FROM ".$table_posts."posts, ".$table_users." users 
                    WHERE posts.poster_id=users.user_id AND posts.post_id='".Database::escape_string($post_id)."'";
            $result = Database::query($sql);
            $post_info = Database::fetch_array($result);

            $htmlcode = false;
            switch ($field) {
                case 'title':
                    $htmlcode = true;
                    $field_table = "post_title";
                    break;
                case 'text':
                    $htmlcode = true;
                    $field_table = "post_text";
                    break;
                case 'date':
                    $field_table = "post_date";
                    break;
                case 'sender':
                    $field_table = "user_id";
                    break;
                case 'sender_name':
                    $field_table = "firstname";
                    break;
                default:
                    $htmlcode = true;
                    $field_table = "title";
            }

            return ($htmlcode) ? html_entity_decode($post_info[$field_table]) : $post_info[$field_table];
        } else {
            return get_lang('InvalidId');
        }
    }

    public function send_post(
        $username,
        $password,
        $course_code,
        $forum_id,
        $thread_id,
        $title,
        $content
    ) {
        if ($this->verifyUserPass($username, $password) == "valid") {
            $em = Database::getManager();
            $course_db = api_get_course_info($course_code);

            $user_id = UserManager::get_user_id_from_username($username);
            $table_threads = Database::get_course_table(TABLE_FORUM_THREAD, $course_db['db_name']);
            $forum_table_attachment = Database::get_course_table(TABLE_FORUM_ATTACHMENT, $course_db['db_name']);
            $table_posts = Database::get_course_table(TABLE_FORUM_POST, $course_db['db_name']);
            $post_date = date('Y-m-d H:i:s');
            $visible = 1;
            $has_attachment = false;
            $my_post = '';
            $post_notification = '';

            $content = nl2br($content);

            $title = htmlentities($title);
            $content = htmlentities($content);

            $postDate = new DateTime(api_get_utc_datetime(), new DateTimeZone('UTC'));
            $post = new \Chamilo\CourseBundle\Entity\CForumPost();
            $post
                ->setPostTitle($title)
                ->setPostText(isset($content) ? (api_html_entity_decode($content)) : null)
                ->setThreadId($thread_id)
                ->setForumId($forum_id)
                ->setPosterId($user_id)
                ->setPostDate($postDate)
                ->setPostNotification(isset($post_notification) ? $post_notification : null)
                ->setPostParentId(isset($my_post) ? $my_post : null)
                ->setVisible($visible);

            $em->persist($post);
            $em->flush();

            return "Post enviado!";
        } else {
            return get_lang('InvalidId');
        }
    }
}

/*
echo "aqui: ";
$aqui = new WSCMForum();
echo "<pre>";

//print_r($aqui->unreadMessage("aluno", "e695f51fe3dd6b7cf2be3188a614f10f"));
//print_r($aqui->get_post_data("aluno", "c4ca4238a0b923820dcc509a6f75849b", "95", "sender_name"));

print_r($aqui->send_post("aluno", "c4ca4238a0b923820dcc509a6f75849b", "P0304", "3", "15", "títle", "conteúdo222222"));
echo "</pre>";
*/