<?php
include "inc.php";
/* Description Generation:
 *      Generates a description based on a plugin name in the
 *      form of a PNG image. Also shows version number.
 */
$plugin = "";
if(isset($_GET['plugin'])){
    $plugin = $_GET['plugin'];
}
$file = "plugin_".$plugin."/docs/image.txt";
$fh = fopen($file, 'r');
$lines = 0;
$chars = 0;
while($line = fgets($fh)){
    $lines ++;
    if(strlen($line)>$chars){
        $chars = strlen($line);
    }
}
fclose($fh);
$errorFlag = "";
if($lines == 0){
    $lines = 1;
    $errorFlag = "Plugin not found!";
}
$lineheight = 22;
$charwidth = 8;
$img = imagecreate($chars*$charwidth,$lines*$lineheight);
$backgroundcolor = imagecolorallocate($img, 255, 255, 255);
$text_colour = imagecolorallocate($img, 0, 0, 0);
if(strlen($errorFlag)>0){
    imagestring($img, 3, 2, 2,  $errorFlag, $text_colour);
}else{
    $Y = 2;
    $fh = fopen($file, 'r');
    while($line = fgets($fh)){
        $line = str_replace("\r\n", "", $line);
        imagestring($img, 4, 2, $Y, $line, $text_colour);
        $Y = $Y + $lineheight;
    }
    fclose($fh);
}
header("Content-type: image/png");
imagepng($img);
imagedestroy($img);
?>