Add range by month

sampleConfig.xml

@@ -8,6 +8,7 @@
 	<WriteDayOfWeekAndHourOfDayData  GraphFile="WriteDayOfWeekAndHourOfDayData.png" CSVFile="WriteDayOfWeekAndHourOfDayData.csv"/>
 	<WriteHourOfDayData  GraphFile="HourOfDay.png" CSVFile="HourOfDay.csv"/>
 	<WriteDayOfWeekData  GraphFile="DayOfWeek.png" CSVFile="DayOfWeek.csv"/>
+	<WriteRangeByMonth  GraphFile="RangeByMonth.png" CSVFile="RangeByMonth.csv"/>
 	<WriteICalData  File="Data.ical" />
 	<WriteDB  DSN="mysql:host=localhost;dbname=CreepyCoder" UserName="cc" Password="cc" 
 		TableName="data" TimeFieldName="data" DeleteBeforeInsert="no" />

src/CreepyCoder.php

@@ -109,3 +109,12 @@
 	}
 }
 
+$configList = $xmlDoc->getElementsByTagName('WriteRangeByMonth');
+$configListLength = $configList->length;
+if ($configListLength > 0) {
+	require dirname(__FILE__).DIRECTORY_SEPARATOR.'WriteRangeByMonth.php';
+	for($pos=0; $pos<$configListLength; $pos++) {
+		$dataManager->writeData(new WriteRangeByMonth($configList->item($pos)));
+	}
+}
+

src/WriteRangeByMonth.php

@@ -0,0 +1,110 @@
+<?php
+/** 
+ * Copyright (C) 2011 James (james at jarofgreen dot co dot uk)
+ * 
+ * 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 <http://www.gnu.org/licenses/>.
+**/
+
+
+class WriteRangeByMonth extends BaseWriteClass {
+
+
+	protected $graph;
+	protected $csv;
+
+	public function __construct($configData = array()) {
+		if (get_class($configData) == 'DOMElement') {
+			$this->graph = $configData->getAttribute('GraphFile');
+			$this->csv = $configData->getAttribute('CSVFile');
+		}
+		parent::__construct($configData);
+	}
+
+	public function write() {
+
+		$data = array();
+
+		foreach($this->dataManager->getData() as $item) {
+			$v = $this->commitToDateIdx($item);
+			if (!isset($data[$v])) $data[$v] = 0;
+			$data[$v]++;
+		}
+
+		$minDate = min(array_keys($data));
+		$maxDate = max(array_keys($data));
+
+
+		if ($this->graph) {
+			$maxCommits = max($data);
+			$dataArray = $labelArray = array();
+			for($i = $minDate; $i <= $maxDate; $i++) {
+				$dataArray[$i] = 0;
+				$labelArray[$i] = '';
+			}
+			foreach(array($minDate, $maxDate, intval($minDate + ($maxDate - $minDate)*.25),intval($minDate + ($maxDate - $minDate)*.50),intval($minDate + ($maxDate - $minDate)*.75)) as $pos) {
+				$labelArray[$pos] = $this->dateIdxToDateString($pos);
+			}
+			foreach($data as $date=>$commits) {
+				$dataArray[$date] = intval($commits / $maxCommits * 100);
+			}
+			$url = 'http://chart.apis.google.com/chart?cht=bvg&chtt=Range+By+Month'.
+				'&chbh='.(intVal(350/count($dataArray))-1).',1&chs=500x300'.
+				'&chxt=x&chxl=0:|'.implode('|',$labelArray).'&chd=t:'.implode(',',$dataArray);
+
+			print "URL: $url \n\n";
+
+			$ch = curl_init($url);
+			$fp = fopen($this->graph, "w");
+			curl_setopt($ch, CURLOPT_FILE, $fp);
+			curl_setopt($ch, CURLOPT_HEADER, 0);
+			curl_exec($ch);
+			curl_close($ch);
+			fclose($fp);
+
+		}
+
+		if ($this->csv) {
+
+			if (!$handle = fopen($this->csv, 'w')) {
+				throw new Exception("Cannot open file");
+			}
+
+			$this->fwrite($handle,"Day,Events\r\n");
+
+			foreach($data as $idx=>$commits) {
+				$this->fwrite($handle,$this->dateIdxToDateString($idx).",".$commits."\r\n");
+			}
+
+			fclose($handle);
+		}
+	}
+
+	private function fwrite($handle,$data) {
+		if (fwrite($handle, $data) === FALSE) {
+			throw new Exception("Cannot write to file");
+		}
+	}
+
+	private function commitToDateIdx(CoderAction $item) {
+		return intval($item->getDateTimeAs('Y')*12) + intval($item->getDateTimeAs('n')) - 1;
+	}
+
+	private function dateIdxToDateString($idx) {
+		$year = intval($idx / 12);
+		$month = ($idx%12)+1;
+		return $month."/".$year;
+	}
+
+}
+