<?php
/*
	Question2Answer by Gideon Greenspan and contributors
	http://www.question2answer.org/

	File: qa-include/qa-page-admin-points.php
	Description: Controller for admin page for settings about user points


	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 2
	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.

	More about this license: http://www.question2answer.org/license.php
*/

	if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
		header('Location: ../');
		exit;
	}

	require_once QA_INCLUDE_DIR.'db/recalc.php';
	require_once QA_INCLUDE_DIR.'db/points.php';
	require_once QA_INCLUDE_DIR.'app/options.php';
	require_once QA_INCLUDE_DIR.'app/admin.php';
	require_once QA_INCLUDE_DIR.'util/sort.php';


//	Check admin privileges

	if (!qa_admin_check_privileges($qa_content))
		return $qa_content;


//	Process user actions

	$securityexpired=false;
	$recalculate=false;
	$optionnames=qa_db_points_option_names();

	if (qa_clicked('doshowdefaults')) {
		$options=array();

		foreach ($optionnames as $optionname)
			$options[$optionname]=qa_default_option($optionname);

	} else {
		if (qa_clicked('docancel'))
			;

		elseif (qa_clicked('dosaverecalc')) {
			if (!qa_check_form_security_code('admin/points', qa_post_text('code')))
				$securityexpired=true;

			else {
				foreach ($optionnames as $optionname)
					qa_set_option($optionname, (int)qa_post_text('option_'.$optionname));

				if (!qa_post_text('has_js'))
					qa_redirect('admin/recalc', array('dorecalcpoints' => 1));
				else
					$recalculate=true;
			}
		}

		$options=qa_get_options($optionnames);
	}


//	Prepare content for theme

	$qa_content=qa_content_prepare();

	$qa_content['title']=qa_lang_html('admin/admin_title').' - '.qa_lang_html('admin/points_title');
	$qa_content['error']=$securityexpired ? qa_lang_html('admin/form_security_expired') : qa_admin_page_error();

	$qa_content['form']=array(
		'tags' => 'method="post" action="'.qa_self_html().'" name="points_form" onsubmit="document.forms.points_form.has_js.value=1; return true;"',

		'style' => 'wide',

		'buttons' => array(
			'saverecalc' => array(
				'tags' => 'id="dosaverecalc"',
				'label' => qa_lang_html('admin/save_recalc_button'),
			),
		),

		'hidden' => array(
			'dosaverecalc' => '1',
			'has_js' => '0',
			'code' => qa_get_form_security_code('admin/points'),
		),
	);


	if (qa_clicked('doshowdefaults')) {
		$qa_content['form']['ok']=qa_lang_html('admin/points_defaults_shown');

		$qa_content['form']['buttons']['cancel']=array(
			'tags' => 'name="docancel"',
			'label' => qa_lang_html('main/cancel_button'),
		);

	} else {
		if ($recalculate) {
			$qa_content['form']['ok']='<span id="recalc_ok"></span>';
			$qa_content['form']['hidden']['code_recalc']=qa_get_form_security_code('admin/recalc');

			$qa_content['script_rel'][]='qa-content/qa-admin.js?'.QA_VERSION;
			$qa_content['script_var']['qa_warning_recalc']=qa_lang('admin/stop_recalc_warning');

			$qa_content['script_onloads'][]=array(
				"qa_recalc_click('dorecalcpoints', document.getElementById('dosaverecalc'), null, 'recalc_ok');"
			);
		}

		$qa_content['form']['buttons']['showdefaults']=array(
			'tags' => 'name="doshowdefaults"',
			'label' => qa_lang_html('admin/show_defaults_button'),
		);
	}


	foreach ($optionnames as $optionname) {
		$optionfield=array(
			'label' => qa_lang_html('options/'.$optionname),
			'tags' => 'name="option_'.$optionname.'"',
			'value' => qa_html($options[$optionname]),
			'type' => 'number',
			'note' => qa_lang_html('admin/points'),
		);

		switch ($optionname) {
			case 'points_multiple':
				$prefix='&#215;';
				unset($optionfield['note']);
				break;

			case 'points_per_q_voted_up':
			case 'points_per_a_voted_up':
			case 'points_q_voted_max_gain':
			case 'points_a_voted_max_gain':
				$prefix='+';
				break;

			case 'points_per_q_voted_down':
			case 'points_per_a_voted_down':
			case 'points_q_voted_max_loss':
			case 'points_a_voted_max_loss':
				$prefix='&ndash;';
				break;

			case 'points_base':
				$prefix='+';
				break;

			default:
				$prefix='<span style="visibility:hidden;">+</span>'; // for even alignment
				break;
		}

		$optionfield['prefix']='<span style="width:1em; display:inline-block; display:-moz-inline-stack;">'.$prefix.'</span>';

		$qa_content['form']['fields'][$optionname]=$optionfield;
	}

	qa_array_insert($qa_content['form']['fields'], 'points_post_a', array('blank0' => array('type' => 'blank')));
	qa_array_insert($qa_content['form']['fields'], 'points_vote_up_q', array('blank1' => array('type' => 'blank')));
	qa_array_insert($qa_content['form']['fields'], 'points_multiple', array('blank2' => array('type' => 'blank')));


	$qa_content['navigation']['sub']=qa_admin_sub_navigation();


	return $qa_content;


/*
	Omit PHP closing tag to help avoid accidental output
*/