<?php
/*
 * Copyright (c) 2010-2018 Tim Düsterhus.
 *
 * Use of this software is governed by the Business Source License
 * included in the LICENSE file.
 *
 * Change Date: 2022-08-16
 *
 * On the date above, in accordance with the Business Source
 * License, use of this software will be governed by version 2
 * or later of the General Public License.
 */

namespace chat\acp\form;

use \chat\data\command\CommandCache;
use \chat\data\command\CommandTrigger;
use \chat\data\command\CommandTriggerAction;
use \chat\data\command\CommandTriggerEditor;
use \wcf\system\exception\UserInputException;
use \wcf\system\WCF;

/**
 * Shows the command trigger add form.
 */
class CommandTriggerAddForm extends \wcf\form\AbstractForm {
	/**
	 * @inheritDoc
	 */
	public $activeMenuItem = 'chat.acp.menu.link.command.trigger.add';

	/**
	 * @inheritDoc
	 */
	public $neededPermissions = [ 'admin.chat.canManageTriggers' ];

	/**
	 * The new trigger for the specified command
	 * @var string
	 */
	public $commandTrigger = '';

	/**
	 * List of currently known commands
	 * @var array
	 */
	public $commands = [ ];

	/**
	 * The selected command.
	 *
	 * @param	Command
	 */
	public $command = null;

	/**
	 * The fully qualified name of the command
	 * @var string
	 */
	public $className = '';

	/**
	 * @inheritDoc
	 */
	public function readData() {
		$commandList = new \chat\data\command\CommandList();
		$commandList->sqlOrderBy = 'command.className';
		$commandList->readObjects();

		$this->commands = $commandList->getObjects();

		parent::readData();
	}

	/**
	 * @inheritDoc
	 */
	public function readFormParameters() {
		parent::readFormParameters();

		if (isset($_POST['commandTrigger'])) $this->commandTrigger = \wcf\util\StringUtil::trim($_POST['commandTrigger']);
		if (isset($_POST['className'])) $this->className = \wcf\util\StringUtil::trim($_POST['className']);
	}

	/**
	 * @inheritDoc
	 */
	public function validate() {
		parent::validate();

		if (empty($this->commandTrigger)) {
			throw new UserInputException('commandTrigger', 'empty');
		}

		// Triggers must not contain whitespace
		if (preg_match('~\s~', $this->commandTrigger)) {
			throw new UserInputException('commandTrigger', 'invalid');
		}

		// Check for duplicates
		$trigger = CommandTrigger::getTriggerByName($this->commandTrigger);
		if ((!isset($this->trigger) && $trigger->triggerID) || (isset($this->trigger) && $trigger->triggerID != $this->trigger->triggerID)) {
			throw new UserInputException('commandTrigger', 'duplicate');
		}

		if (empty($this->className)) {
			throw new UserInputException('className', 'empty');
		}

		// Check if the command is registered
		foreach ($this->commands as $command) {
			if ($command->className === $this->className) {
				$this->command = $command;
				break;
			}
		}

		if (!$this->command) {
			throw new UserInputException('className', 'notFound');
		}
	}

	/**
	 * @inheritDoc
	 */
	public function save() {
		parent::save();

		$fields = [ 'commandTrigger' => $this->commandTrigger
		          , 'commandID'      => $this->command->commandID
		          ];

		// create room
		$this->objectAction = new \chat\data\command\CommandTriggerAction([ ], 'create', [ 'data' => array_merge($this->additionalFields, $fields) ]);
		$this->objectAction->executeAction();

		$this->saved();

		// reset values
		$this->commandTrigger = $this->className = '';

		// show success message
		WCF::getTPL()->assign('success', true);
	}

	/**
	 * @inheritDoc
	 */
	public function assignVariables() {
		parent::assignVariables();

		WCF::getTPL()->assign([ 'action'            => 'add'
		                      , 'commandTrigger'    => $this->commandTrigger
		                      , 'className'         => $this->className
		                      , 'availableCommands' => $this->commands
		                      ]);
	}
}