#!/usr/bin/php4
<?
	//Acquire the data
	$datafile = "hits/".str_replace (array ("/", "."), "_", $_GET["view"]).".dat";
	$file = fopen($datafile,"r+"); 
	$hitcounter_file = fread($file,filesize($datafile));
	fclose ($file);
	list($hitcount_total,$hitcount_today,$hitcount_daily) = explode (";", $hitcounter_file);
	list($hitcount,$hitcounter_timestamp) = explode (":", $hitcount_total);
	list($hitcount_today_hits,$hitcount_today_date) = explode (":", $hitcount_today);
	$hitcounter_daily = explode (":", $hitcount_daily);
	$i = 0;
	while ($i <= count($hitcounter_daily)) {
		if ($hitcounter_daily[$i] == "") break;
		$hits[$hitcounter_daily[$i + 1]] = $hitcounter_daily[$i];
		$i = $i + 2;
	}
	$hits[$hitcount_today_date] = $hitcount_today_hits;

	//Initialize the constants
	$barscale = round ((max($hits) + (5 * pow (10, ((strlen (max($hits) + 9) - 1) - 1)))), -(strlen (max($hits) + 9) - 1));
	list ($start_date, $value) = each ($hits);
	$start_time = mktime (0, 0, 0, substr($start_date, 2, 2), substr($start_date, 4, 2), substr($start_date, 0, 2));
	$end_time = mktime (0, 0, 0, date ("m"), date ("d"), date ("y"));
	$time_range = (($end_time - $start_time) / 86400) + 1;
	$barwidth = (365 / $time_range);
	
	//Initialize the image
	$graph_image = imagecreate (400, 220);
	$background_color = imagecolorallocate ($graph_image, 255, 255, 255);
	$graph_color = imagecolorallocate ($graph_image, 255, 0, 0);
	$text_color = imagecolorallocate ($graph_image, 0, 0, 0);
	$dash_style = array ($text_color,$background_color);

	//Draw the graph bars
	imagesetstyle ($graph_image, $dash_style);
	$i = 0;
	#imagestring ($graph_image, 1, 5, 10, "((mktime (0, 0, 0, ".date ("m").", ".date ("d").", ".date ("y").") - $start_time) / 86400)", $text_color);
	while ($i <= 365) {
		$current_time = $start_time + ($i * 86400);
		$graph_date = date ("ymd", $current_time);
		if ($current_time > $end_time) break;
		$barheight = round ($hits[$graph_date] * (200 / $barscale));
		imagefilledrectangle ($graph_image, round ($i * $barwidth), (204 - $barheight), (round (($i + 1) * $barwidth) -1), 204, $graph_color);
		if ($time_range <= 12) {
			imageline ($graph_image, ($i * $barwidth), 4, ($i * $barwidth), 204, IMG_COLOR_STYLED);
			$graph_date_formated = date ("m/d", $current_time);
			imagestring ($graph_image, 1, (round (($i * $barwidth) + ($barwidth / 2)) - 12), 210, "$graph_date_formated", $text_color);
		}
		elseif ($date_range <= 62) {
			if (date ("D", $current_time) == "Sun") {
				imageline ($graph_image, ($i * $barwidth), 4, ($i * $barwidth), 204, IMG_COLOR_STYLED);
				$graph_date_formated = date ("m/d", $current_time);
				imagestring ($graph_image, 1, round ($i * $barwidth), 210, "$graph_date_formated", $text_color);
			}
		}
		$i++;
	}

	//Annotate the graph
	$i = 0;
	while ($i <= 10) {
		imageline ($graph_image, 0, 4, 0, 204, IMG_COLOR_STYLED);
		imageline ($graph_image, 365, 4, 365, 204, IMG_COLOR_STYLED);
		imageline ($graph_image, 0, (($i * 20)+4), 365, (($i * 20)+4), IMG_COLOR_STYLED);
		imagestring ($graph_image, 1, 370, ($i * 20), ($barscale - ($i * ($barscale / 10))), $text_color);
		$i++;
	}

	//Output the graph
	header("Content-type: image/png");
	imagepng ($graph_image);
	imagedestroy ($graph_image);
?>