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

namespace Q2A\Controllers\Admin;

use Q2A\Auth\NoPermissionException;
use Q2A\Middleware\Auth\MinimumUserLevel;

/**
 * Controller for admin page showing usage statistics and clean-up buttons
 */
class Stats extends \Q2A\Controllers\BaseController
{
	public function __construct()
	{
		require_once QA_INCLUDE_DIR . 'db/recalc.php';
		require_once QA_INCLUDE_DIR . 'app/admin.php';
		require_once QA_INCLUDE_DIR . 'db/admin.php';
		require_once QA_INCLUDE_DIR . 'app/format.php';

		parent::__construct();

		$this->addMiddleware(new MinimumUserLevel(QA_USER_LEVEL_ADMIN));
	}

	public function index()
	{
		// Get the information to display

		$qcount = (int)qa_opt('cache_qcount');
		$qcount_anon = qa_db_count_posts('Q', false);
		$qcount_unans = (int)qa_opt('cache_unaqcount');

		$acount = (int)qa_opt('cache_acount');
		$acount_anon = qa_db_count_posts('A', false);

		$ccount = (int)qa_opt('cache_ccount');
		$ccount_anon = qa_db_count_posts('C', false);


		// Prepare content for theme

		$qa_content = qa_content_prepare();

		$qa_content['title'] = qa_lang_html('admin/admin_title') . ' - ' . qa_lang_html('admin/stats_title');

		$qa_content['error'] = qa_admin_page_error();

		$qa_content['form'] = array(
			'style' => 'wide',

			'fields' => array(
				'q2a_version' => array(
					'label' => qa_lang_html('admin/q2a_version'),
					'value' => qa_html(QA_VERSION),
				),

				'q2a_date' => array(
					'label' => qa_lang_html('admin/q2a_build_date'),
					'value' => qa_html(QA_BUILD_DATE),
				),

				'q2a_latest' => array(
					'label' => qa_lang_html('admin/q2a_latest_version'),
					'type' => 'custom',
					'html' => '<span id="q2a-version">...</span>',
				),

				'break0' => array(
					'type' => 'blank',
				),

				'db_version' => array(
					'label' => qa_lang_html('admin/q2a_db_version'),
					'value' => qa_html(qa_opt('db_version')),
				),

				'db_size' => array(
					'label' => qa_lang_html('admin/q2a_db_size'),
					'value' => qa_html(qa_format_number(qa_db_table_size() / 1048576, 1) . ' MB'),
				),

				'break1' => array(
					'type' => 'blank',
				),

				'php_version' => array(
					'label' => qa_lang_html('admin/php_version'),
					'value' => qa_html(phpversion()),
				),

				'mysql_version' => array(
					'label' => qa_lang_html('admin/mysql_version'),
					'value' => qa_html(qa_db_mysql_version()),
				),

				'break2' => array(
					'type' => 'blank',
				),

				'qcount' => array(
					'label' => qa_lang_html('admin/total_qs'),
					'value' => qa_html(qa_format_number($qcount)),
				),

				'qcount_unans' => array(
					'label' => qa_lang_html('admin/total_qs_unans'),
					'value' => qa_html(qa_format_number($qcount_unans)),
				),

				'qcount_users' => array(
					'label' => qa_lang_html('admin/from_users'),
					'value' => qa_html(qa_format_number($qcount - $qcount_anon)),
				),

				'qcount_anon' => array(
					'label' => qa_lang_html('admin/from_anon'),
					'value' => qa_html(qa_format_number($qcount_anon)),
				),

				'break3' => array(
					'type' => 'blank',
				),

				'acount' => array(
					'label' => qa_lang_html('admin/total_as'),
					'value' => qa_html(qa_format_number($acount)),
				),

				'acount_users' => array(
					'label' => qa_lang_html('admin/from_users'),
					'value' => qa_html(qa_format_number($acount - $acount_anon)),
				),

				'acount_anon' => array(
					'label' => qa_lang_html('admin/from_anon'),
					'value' => qa_html(qa_format_number($acount_anon)),
				),

				'break4' => array(
					'type' => 'blank',
				),

				'ccount' => array(
					'label' => qa_lang_html('admin/total_cs'),
					'value' => qa_html(qa_format_number($ccount)),
				),

				'ccount_users' => array(
					'label' => qa_lang_html('admin/from_users'),
					'value' => qa_html(qa_format_number($ccount - $ccount_anon)),
				),

				'ccount_anon' => array(
					'label' => qa_lang_html('admin/from_anon'),
					'value' => qa_html(qa_format_number($ccount_anon)),
				),

				'break5' => array(
					'type' => 'blank',
				),

				'users' => array(
					'label' => qa_lang_html('admin/users_registered'),
					'value' => QA_FINAL_EXTERNAL_USERS ? '' : qa_html(qa_format_number(qa_db_count_users())),
				),

				'users_active' => array(
					'label' => qa_lang_html('admin/users_active'),
					'value' => qa_html(qa_format_number((int)qa_opt('cache_userpointscount'))),
				),

				'users_posted' => array(
					'label' => qa_lang_html('admin/users_posted'),
					'value' => qa_html(qa_format_number(qa_db_count_active_users('posts'))),
				),

				'users_voted' => array(
					'label' => qa_lang_html('admin/users_voted'),
					'value' => qa_html(qa_format_number(qa_db_count_active_users('uservotes'))),
				),
			),
		);

		if (QA_FINAL_EXTERNAL_USERS) {
			unset($qa_content['form']['fields']['users']);
		} else {
			unset($qa_content['form']['fields']['users_active']);
		}

		foreach ($qa_content['form']['fields'] as $index => $field) {
			if (empty($field['type'])) {
				$qa_content['form']['fields'][$index]['type'] = 'static';
			}
		}

		$qa_content['form_2'] = array(
			'tags' => 'method="post" action="' . qa_path_html('admin/recalc') . '"',

			'title' => qa_lang_html('admin/database_cleanup'),

			'style' => 'basic',

			'buttons' => array(
				'recount_posts' => array(
					'label' => qa_lang_html('admin/recount_posts'),
					'tags' => 'name="dorecountposts" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/recount_posts_stop')) . ', \'recount_posts_note\');"',
					'note' => '<span id="recount_posts_note">' . qa_lang_html('admin/recount_posts_note') . '</span>',
				),

				'reindex_content' => array(
					'label' => qa_lang_html('admin/reindex_content'),
					'tags' => 'name="doreindexcontent" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/reindex_content_stop')) . ', \'reindex_content_note\');"',
					'note' => '<span id="reindex_content_note">' . qa_lang_html('admin/reindex_content_note') . '</span>',
				),

				'recalc_points' => array(
					'label' => qa_lang_html('admin/recalc_points'),
					'tags' => 'name="dorecalcpoints" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/recalc_stop')) . ', \'recalc_points_note\');"',
					'note' => '<span id="recalc_points_note">' . qa_lang_html('admin/recalc_points_note') . '</span>',
				),

				'refill_events' => array(
					'label' => qa_lang_html('admin/refill_events'),
					'tags' => 'name="dorefillevents" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/recalc_stop')) . ', \'refill_events_note\');"',
					'note' => '<span id="refill_events_note">' . qa_lang_html('admin/refill_events_note') . '</span>',
				),

				'recalc_categories' => array(
					'label' => qa_lang_html('admin/recalc_categories'),
					'tags' => 'name="dorecalccategories" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/recalc_stop')) . ', \'recalc_categories_note\');"',
					'note' => '<span id="recalc_categories_note">' . qa_lang_html('admin/recalc_categories_note') . '</span>',
				),

				'delete_hidden' => array(
					'label' => qa_lang_html('admin/delete_hidden'),
					'tags' => 'name="dodeletehidden" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/delete_stop')) . ', \'delete_hidden_note\');"',
					'note' => '<span id="delete_hidden_note">' . qa_lang_html('admin/delete_hidden_note') . '</span>',
				),
			),

			'hidden' => array(
				'code' => qa_get_form_security_code('admin/recalc'),
			),
		);

		if (!qa_using_categories()) {
			unset($qa_content['form_2']['buttons']['recalc_categories']);
		}

		if (defined('QA_BLOBS_DIRECTORY')) {
			if (qa_db_has_blobs_in_db()) {
				$qa_content['form_2']['buttons']['blobs_to_disk'] = array(
					'label' => qa_lang_html('admin/blobs_to_disk'),
					'tags' => 'name="doblobstodisk" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/blobs_stop')) . ', \'blobs_to_disk_note\');"',
					'note' => '<span id="blobs_to_disk_note">' . qa_lang_html('admin/blobs_to_disk_note') . '</span>',
				);
			}

			if (qa_db_has_blobs_on_disk()) {
				$qa_content['form_2']['buttons']['blobs_to_db'] = array(
					'label' => qa_lang_html('admin/blobs_to_db'),
					'tags' => 'name="doblobstodb" onclick="return qa_recalc_click(this.name, this, ' . qa_js(qa_lang_html('admin/blobs_stop')) . ', \'blobs_to_db_note\');"',
					'note' => '<span id="blobs_to_db_note">' . qa_lang_html('admin/blobs_to_db_note') . '</span>',
				);
			}
		}


		$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_version_check('https://raw.githubusercontent.com/q2a/question2answer/master/VERSION.txt', " . qa_js(qa_html(QA_VERSION), true) . ", 'q2a-version', true);"
		);

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


		return $qa_content;
	}
}
