<?php
/**
 * Copyright (C) 2024 fhcomplete.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

if (! defined('BASEPATH')) exit('No direct script access allowed');

use \DateTime as DateTime;

class Bookmark extends FHCAPI_Controller
{

	/**
	 * Object initialization
	 */
	public function __construct()
	{
		parent::__construct([
			'getBookmarks' => self::PERM_LOGGED,
			'delete' => self::PERM_LOGGED,
			'insert' => self::PERM_LOGGED,
			'update' => self::PERM_LOGGED,
			'changeOrder' => self::PERM_LOGGED
		]);

		$this->load->model('dashboard/Bookmark_model', 'BookmarkModel');

		$this->uid = getAuthUID();
		$this->pid = getAuthPersonID();
	}

	//------------------------------------------------------------------------------------------------------------------
	// Public methods

	
	/**
	 * gets the bookmarks associated to a user
	 * @access public
	 * @return void
	 */
	public function getBookmarks()
	{
		$this->BookmarkModel->addOrder("sort");
		$bookmarks = $this->BookmarkModel->loadWhere(["uid"=>$this->uid]);

		$bookmarks = $this->getDataOrTerminateWithError($bookmarks);

		$this->terminateWithSuccess($bookmarks);
	}

	/**
	 * deletes bookmark from associated user
	 * @access public
	 * @return void
	 */
	public function delete($bookmark_id)
	{
		$bookmark = $this->BookmarkModel->load($bookmark_id);

		$bookmark = current($this->getDataOrTerminateWithError($bookmark));

		// only delete bookmark if the user is the owner of the bookmark
		if ($bookmark->uid == $this->uid || $this->permissionlib->isBerechtigt('admin')) {
			$delete_result = $this->BookmarkModel->delete($bookmark_id);

			$delete_result = $this->getDataOrTerminateWithError($delete_result);

			$this->terminateWithSuccess($delete_result);
		} else {
			$this->_outputAuthError(['delete' => ['admin:rw']]);
		}
	}

	/**
	 * inserts new bookmark into the bookmark table
	 * @access public
	 * @return void
	 */
	public function insert()
	{
		// form validation
		$this->load->library('form_validation');
		$this->form_validation->set_rules('url', 'URL', 'required|valid_url|max_length[511]');
		$this->form_validation->set_rules('title', 'Title', 'required|max_length[255]');
		if (!$this->form_validation->run())
			$this->terminateWithValidationErrors($this->form_validation->error_array());

		$url = $this->input->post('url', true);
		$title = $this->input->post('title', true);
		$tag = $this->input->post('tag', true);
		if (is_array($tag)) {
			$tag = json_encode($tag); // convert PHP array to JSON string
		}
		$sort = $this->input->post('sort', true);

		$insert_into_result = $this->BookmarkModel->insert([
			'uid' => $this->uid,
			'url' => $url,
			'title' => $title,
			'tag' => $tag,
			'insertvon' => $this->uid,
			'updateamum' => null,
			'updatevon' => null,
			'sort' => $sort
		]);

		$insert_into_result = $this->getDataOrTerminateWithError($insert_into_result);

		$this->terminateWithSuccess($insert_into_result);
	}

	/**
	 * updates bookmark in the bookmark table
	 * @access public
	 * @return void
	 */
	public function update($bookmark_id)
	{
		// form validation
		$this->load->library('form_validation');
		$this->form_validation->set_rules('url', 'URL', 'required|valid_url|max_length[511]');
		$this->form_validation->set_rules('title', 'Title', 'required|max_length[255]');
		if (!$this->form_validation->run())
			$this->terminateWithValidationErrors($this->form_validation->error_array());

		$url = $this->input->post('url', true);
		$title = $this->input->post('title', true);
		$tag = $this->input->post('tag', true);
		if (is_array($tag)) {
			$tag = json_encode($tag);
		}

		$now = new DateTime();
		$now = $now->format('Y-m-d H:i:s');

		$update_result = $this->BookmarkModel->update($bookmark_id, [
			'url' => $url,
			'title' => $title,
			'tag' => $tag,
			'updateamum' => $now
		]);

		$update_result = $this->getDataOrTerminateWithError($update_result);

		$this->terminateWithSuccess($update_result);
	}

	/**
	 * changes sort of two bookmarks in the bookmark table
	 * @access public
	 * @return void
	 */
	public function changeOrder($bookmark_id1, $bookmark_id2)
	{
		$update_result = [];

		$result1 = $this->BookmarkModel->load($bookmark_id1);
		$data1 = $this->getDataOrTerminateWithError($result1);
		$sort1 = current($data1)->sort;

		$result2 = $this->BookmarkModel->load(["bookmark_id"=>$bookmark_id2]);
		$data2 = $this->getDataOrTerminateWithError($result2);
		$sort2 = current($data2)->sort;

		$update_result1 = $this->BookmarkModel->update($bookmark_id1, [
			'sort' => $sort2
		]);
		$update_result[] = $this->getDataOrTerminateWithError($update_result1);

		$update_result2 = $this->BookmarkModel->update($bookmark_id2, [
			'sort' => $sort1
		]);
		$update_result[] = $this->getDataOrTerminateWithError($update_result2);

		$this->terminateWithSuccess($update_result);
	}
}