<?php

class CProject {
	
	private $dir;
	public $projname;
	public $shortdesc = '(no description)';
	public $subtag = '';
	public $lastupdate = 0;
	private $longdesc = '';
	private $prefix_html = '';
	private $images = array();
	private $downloads = array();
	private $downloads_hashes = array();
	public $tags = array();
	
	public $homeimage = null;
	
	public function __construct($dirname, $projname) {
		$this->dir = BASEDIR.'data/'.$dirname.'/';
		$this->projname = $projname;
		
		// Identify resources in folder
		
		$ls = scandir($this->dir);
		$found_real_lastupdate = false;
		foreach($ls as $file) {
			if ($file[0] == '.') continue;
			
			if ($file == 'README.txt') {
				
				// Guess 'last update' time
				$matches = [];
				if (preg_match('~\n(\d\d\d\d-\d\d-\d\d)~', $this->longdesc, $matches)) {
					// Use first date entry (assumed to be a CHANGELOG)
					$this->lastupdate = strtotime($matches[1]);
					$found_real_lastupdate = true;
					
				}
				
				$this->longdesc = file_get_contents($this->dir.'README.txt');
				
				$matches = array();
				if (preg_match('~Written in ([^\\r\\n]+)~', $this->longdesc, $matches)) {
					$this->subtag = rtrim($matches[1], ' .');
				}
				
				if (preg_match('~Tags: ([^\\r\\n]+)~', $this->longdesc, $matches)) {
					$this->tags = array_map('trim', explode(',', $matches[1]));
				}
				
				$parts = explode("\n", $this->longdesc);
				$this->shortdesc = array_shift($parts);
				$this->shortdesc[0] = strtolower($this->shortdesc[0]); // cosmetic lowercase
				
				// Filter longdesc				
				$this->longdesc = str_replace("\r", "", $this->longdesc); // filter windows CR
				
				$prefix_html = '';
				$this->longdesc = preg_replace_callback('~\r?\nWritten in ([^\\n]+)~ms', function($matches) use (&$prefix_html) {
					$prefix_html .= (
						(SHIELDS_PREFIX ? mkshield('build', 'success', 'brightgreen').'&nbsp;' : '').
						mkshield('written in', rtrim($matches[1], '.'), 'blue')
					);
					return '';
				}, $this->longdesc);
				
				while(strpos($this->longdesc, "\n\n\n") !== false) {
					$this->longdesc = str_replace("\n\n\n", "\n\n", $this->longdesc);
				}
				$this->longdesc = rtrim($this->longdesc, "\n");

				$this->prefix_html = $prefix_html;
				
				continue;
			}
			
			if (! $found_real_lastupdate) {
				$this->lastupdate = max(
					$this->lastupdate,
					// filectime($this->dir.$file),
					($file == 'README.txt' ? filectime($this->dir.$file) : filemtime($this->dir.$file)) // Don't count README updates
				);
			}
						
			if (is_image($file)) {
				$this->images[] = $file;
			} else {
				$this->downloads[] = $file;
			}
		}
		
		natcasesort($this->downloads);
		$this->downloads = array_reverse($this->downloads);
		
		for($i = 0, $e = count($this->downloads); $i !== $e; ++$i) {
			$this->downloads_hashes[] = (
				sha1_file($this->dir.$this->downloads[$i])
			);
		}
	}
	
	public function genHomeImage() {		
		if (count($this->images)) {
			
			$this->homeimage = mkthumbnail(
				$this->dir.$this->images[0],
				null, // raw handle
				INDEX_THUMB_W, INDEX_THUMB_H
			);
		}
		
	}
	
	public function write() {
		
		// Generate image thumbnails
		
		foreach($this->images as $idx => $image) {
			$outfile = BASEDIR.'wwwroot/img/'.$this->projname.'_'.$idx;
			copy($this->dir.$image, $outfile.'.'.str_ext($image));
			
			mkthumbnail($outfile.'.'.str_ext($image), $outfile.'_thumb.jpg', PAGE_THUMB_W, PAGE_THUMB_H);
		}
		
		// Copy downloads to wwwroot
		
		foreach($this->downloads as $idx => $filename) {
			$cmkdir = @mkdir( BASEDIR.'wwwroot/srv/'.$this->downloads_hashes[$idx] );
			
			if (! $cmkdir) {
				fputs(
					STDOUT,
					"WARNING: Couldn't create directory ".$this->downloads_hashes[$idx].
					" for file '${filename}'".
					" in project '".$this->projname."'!\n"
				);
			}
			
			copy(
				$this->dir.$filename, 
				BASEDIR.'wwwroot/srv/'.$this->downloads_hashes[$idx].'/'.$filename
			);
		}
		
		// Generate index page
		
		ob_start();
		$this->index();
		$idxfile = template($this->projname.' | '.SITE_TITLE, ob_get_clean());
		file_put_contents(BASEDIR.'wwwroot/'.$this->projname.'.html', $idxfile);
	}
	
	public function getClassAttr() {
		if (count($this->tags)) {
			return 'taggedWith-'.implode(' taggedWith-', $this->tags);
		} else {
			return '';
		}
	}
	
	public function index() {
?> 
<h2><?=hesc(str_replace('_', ' ', $this->projname))?></h2>

<div class="projinfo">

	<div class="projbody projbody_<?=(count($this->images) ? 'half' : 'full')?>w">
		
<?php if (strlen($this->prefix_html)) { ?>
		<p style="margin-top:0;"><?=$this->prefix_html?></p>
<?php } ?> 
		
		<strong><?=hesc(strtoupper(ARTICLE_HEADER))?></strong>
		
		<p><?=text2html($this->longdesc)?></p>

		<?=file_get_contents(BASEDIR.'/footer.htm')?> 
		
<?php if (count($this->downloads)) { ?> 
		
		<strong>DOWNLOAD</strong>
		
		<ul>
	<?php foreach($this->downloads as $idx => $filename) { ?> 
			<li>
				<a href="srv/<?=hesc($this->downloads_hashes[$idx])?>/<?=hesc(rawurlencode($filename))?>"><?=hesc($filename)?></a>
				<small>
					<?=hesc(fbytes(filesize(BASEDIR.'wwwroot/srv/'.$this->downloads_hashes[$idx].'/'.$filename)))?>
				</small>
			</li>
	<?php } ?> 
		</ul>
<?php } ?> 
	</div>

<?php if (count($this->images)) { ?> 
	<div class="projimg">
	<?php foreach($this->images as $idx => $origname) { ?> 
		<a href="srv/<?=hesc(urlencode($this->projname))?>_<?=$idx?>.<?=str_ext($origname)?>"><img src="srv/<?=hesc(urlencode($this->projname))?>_<?=$idx?>_thumb.jpg" class="thumbimage"></a>
	<?php } ?> 
	</div>
	
	<div style="clear:both;"></div>
	
<?php } ?> 
	
</div>

<?php
	}
	
}