"rrdtool" theme for graphing basic stats in development

templates/themes/rrdtool/cron.php

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+<?php
+	$_SERVER = Array('REQUEST_URI' => '', 'HTTP_HOST' => '', 'SCRIPT_FILENAME' => '');
+	chdir('/var/www');
+	
+	require 'inc/functions.php';
+	require 'inc/display.php';
+	require 'inc/template.php';
+	require 'inc/database.php';
+	
+	require 'theme.php';
+	rebuildTheme('rrdtool', 'cron');
+?>

templates/themes/rrdtool/info.php

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+<?php
+	$theme = Array();
+	
+	// Theme name
+	$theme['name'] = 'RRDtool';
+	// Description (you can use Tinyboard markup here)
+	$theme['description'] = 'Graph basic statistics using the PHP RRDtool extension.';
+	$theme['version'] = 'v0.1';
+	
+	// Theme configuration	
+	$theme['config'] = Array();
+	
+	$theme['config'][] = Array(
+		'title' => 'Path',
+		'name' => 'path',
+		'type' => 'text',
+		'default' => str_replace('\\', '/', dirname(__FILE__)) . '/data',
+		'size' => '50'
+	);
+	
+	$__boards = listBoards();
+	$__default_boards = Array();
+	foreach($__boards as $__board)
+		$__default_boards[] = $__board['uri'];
+	
+	$theme['config'][] = Array(
+		'title' => 'Boards',
+		'name' => 'boards',
+		'type' => 'text',
+		'comment' => '(boards to graph; space seperated)',
+		'size' => 24,
+		'default' => implode(' ', $__default_boards)
+	);
+	
+	// Unique function name for building everything
+	$theme['build_function'] = 'rrdtool_build';
+?>

templates/themes/rrdtool/theme.php

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+<?php
+	require 'info.php';
+	
+	function rrdtool_build($action, $settings) {
+		// Possible values for $action:
+		//	- all (rebuild everything, initialization)
+		//	- news (news has been updated)
+		//	- boards (board list changed)
+		//	- post (a post has been made)
+		
+		$b = new TB_RRDTool();
+		$b->build($action, $settings);
+	}
+	
+	// Wrap functions in a class so they don't interfere with normal Tinyboard operations
+	class TB_RRDTool {
+		public function build($action, $settings) {
+			global $config, $_theme;
+			
+			$this->boards = explode(' ', $settings['boards']);
+			$this->interval = 60;
+			
+			if($action == 'cron') {
+				if(!file_exists($settings['path']))
+					mkdir($settings['path']);
+				
+				foreach($this->boards as &$board) {
+					$file = $settings['path'] . '/' . $board . '.rrd';
+					
+					if(!file_exists($file)) {
+						// Create graph
+						if(!rrd_create($file, Array(
+							'-s ' . $this->interval,
+							'DS:posts:ABSOLUTE:120:0:100000000',
+							'RRA:AVERAGE:0.5:1:2880',
+							'RRA:AVERAGE:0.5:30:672',
+							'RRA:AVERAGE:0.5:120:732',
+							'RRA:AVERAGE:0.5:720:1460')))
+								error('RRDtool failed: ' . htmlentities(rrd_error()));
+					}
+					
+					if($action == 'cron') {
+						$query = prepare(sprintf("SELECT COUNT(*) AS `count` FROM `posts_%s` WHERE `time` >= :time", $board));
+						$query->bindValue(':time', time() - $this->interval, PDO::PARAM_INT):
+						$query->exeucte() or error(db_error($query));
+						$query->fetch();
+						
+						if(!rrd_update($file, Array(
+								'-t',
+								'posts',
+								'N:')))
+								error('RRDtool failed: ' . htmlentities(rrd_error()));
+						}
+				}
+			}
+		}
+	};
+	
+?>