episode.class.php

<?php

require( 'persistent.class.php' );

class Episode extends Persistent {

	public $series;
	public $season;
	public $number;
	public $airdate;
	public $title;
	public $description;
	protected $detailURL;
		
	public function __construct() {
		$args = func_get_args();
		
		$this->series = '';
		$this->season = '';
		$this->number = 0;
		$this->airdate = 0;
		$this->title = '';
		$this->description = '';
				
		switch( count($args) ) {
			case 1: // String version
				$this->split($args[0]);
				break;
			case 2: // Series/Number
				list($this->series,$this->number) = $args;
				break;
			case 3: // Series/Season/Number
				list($this->series,$this->season,$this->number) = $args;
				break;
		}
	
	}
	
	public function is_released() {
		return mktime() > $this->airdate;
	}
	
	public function toString( $format = '%1$s - S%2$02dE%3$02d - %4$s', $dateformat='Ymd' ) {
		return sprintf( $format, $this->series, $this->season, $this->number, $this->title, date( $dateformat, $this->airdate ), $this->description );
	}
	
	public function __toString() {
		return $this->toString();
	}
	
	public function split( $in ) {
		
		$matches = array();
		
		// Attempt format with dots/spaces and S##E##
		$expression = '~^(?:\[\w+\][ .]*)?([-A-Za-z0-9. ]+?)[. \[](S\d\d)(E\d\d)[. \[]?~i';
		if( preg_match( $expression, $in, $matches ) ) {
			$this->series = ucwords(strtolower(str_replace( '.', ' ', $matches[1] )));
			$this->season = intval(str_ireplace( 'S', '', $matches[2] ));
			$this->number = intval(str_ireplace( 'E', '', $matches[3] ));
		
			return true;
		}

		// Attempt format with dots/spaces and production code
		$expression = '~^([-A-Za-z0-9. ]+?)[. \[]+(\d+?)[x.]?(\d+?)[. \]]~i';
		if( preg_match( $expression, $in, $matches ) ) {
			$this->series = ucwords(strtolower(str_replace( '.', ' ', $matches[1] )));
			$this->season = intval($matches[2]);
			$this->number = intval(str_ireplace( 'x', '', $matches[3] ));
		
			return true;
		}

		// Simple text format
		$expression = '~^([-A-Za-z0-9. ]+?)\s+(S|Season)?\s*?(\d+)\s*?(Ep|Episode)?\s*?(\d+)~i';
		if( preg_match( $expression, $in, $matches ) ) {
			$this->series = ucwords(strtolower(str_replace( '.', ' ', $matches[1] )));
			$this->season = $matches[3];
			$this->number = $matches[5];	
			return true;
		}

		return false;
	}
	
	public function save( $dir='./data/' ) {
		return parent::save( $dir.preg_replace('~\W~', ' ', $this->toString('%1$s S%2$02dE%3$02d')).'.txt' );
	}
	
	public function load( $dir='./data/' ) {
		return parent::load( $dir.preg_replace('~\W~', ' ', $this->toString('%1$s S%2$02dE%3$02d')).'.txt' );
	}
	
	public function cached( $dir='./data/' ) {
		return file_exists( $dir.preg_replace('~\W~', ' ', $this->toString('%1$s S%2$02dE%3$02d')).'.txt'  );
	}
	
	public function load_from_epguides() {
		if( empty($this->series) ) {
			throw new Exception('Show not set');
		}
		
		$contents = file_get_contents( 'http://epguides.com/' . preg_replace( '~\W~', '', $this->series ) );
		if( $contents === false ) {
			$contents = file_get_contents( 'http://epguides.com/' . str_ireplace('The','',preg_replace( '~\W~', '', $this->series )));
		}
		$matches = array();
		if( preg_match( sprintf("~^\s*\d+[.]\s+%d[-]\s*?%2d\s+(\S*?)\s+(.*?)[<].*?href=\"(.*?)\".*?[>](.*?)[<]~mi", $this->season, $this->number), $contents, $matches ) ) {
			$this->productioncode = $matches[1];
			$this->airdate = strtotime(trim($matches[2]));
			$this->detailURL = $matches[3];			
			$this->title = $matches[4];
		} else if( preg_match( sprintf("~<li>\s*%d[-]\s*?%2d\s+(\S*?)\s+(.*?)[<].*?href=\"(.*?)\".*?[>](.*?)[<]~mi", $this->season, $this->number), $contents, $matches ) ) {
			$this->productioncode = $matches[1];
			$this->airdate = strtotime(trim($matches[2]));
			$this->detailURL = $matches[3];			
			$this->title = $matches[4];
		} else {
			return false;
		}
		
		$detailcontents = file_get_contents( $this->detailURL );
		//$detailcontents = '';
		
		$expression = '~<title>(.*?)</title>~si';
		$seriesmatches = array();
		if( preg_match( $expression, $detailcontents, $seriesmatches ) ) {
			$this->series = trim(trim(trim(str_replace('- TV.com','',strip_tags($seriesmatches[1]))), ':'));
		} 
		
		$expression = '~<p class="deck">(.*?)<a~si';		
		$detailmatches = array();
		if( preg_match( $expression, $detailcontents, $detailmatches ) ) {
			$this->description = trim(strip_tags($detailmatches[1]));
		} else {
			$expression = '~<div id="main-col">\s+<div>(.*?)(?:<div)~si';		
			$detailmatches = array();
			if( preg_match( $expression, $detailcontents, $detailmatches ) ) {
				$this->description = trim(strip_tags($detailmatches[1]));
			}	
		}
		
		return true;
	
	}
	
	public static function get( $title ) {
		$episode = new Episode( $title );
		if( $episode->cached() ) {
			$episode->load();
		} else {
			$episode->load_from_epguides();
			$episode->save();
		}
		return $episode;
	}
}

?>