To TEST

Entity.php

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+<?php
+include( "Hit.php" );
+
+class Entity {
+	protected $name = "";
+	protected $color = "";
+	/* A table with the history of hits? */
+	protected $hits = array();
+
+	public function __construct( /*string*/ $file_name, /*string*/ $color ) {
+		$this->name = $file_name;
+		$this->color = $color;
+		$handle = fopen($filename, "r");
+		$i = 0;
+		if ($handle) {
+		    while (($line = fgets($handle)) !== false) {
+		    	if( $i !== 0 && substr( $line, 0, 1 ) != "%" ){
+		            	// process the hit line read.
+				$array = explode( ":", $line )
+				$this->hits[ $array[1] ] = $array[0];
+			}
+			$i++;
+		    }
+		} else {
+		    // error opening the file.
+		} 
+		fclose($handle);
+	}
+
+	public function get_name(){
+	    return $this->name;
+	}
+	public function get_color(){
+	    return $this->color;
+	}
+	public function get_hits(){
+	    return $this->hits;
+	}
+	public function get_latest_hit(){
+	    return new Hit( end( $this->hits ), new DateTime( key( $this->hits ) ) );
+	}
+	public function get_first_hit(){
+	    return new Hit( reset($this->hits) , new DateTime( key( $this->hits ) ) );
+	}
+	public function get_todays_hits(){
+	    $arr = $this->hits;
+	    $input = strtotime('today midnight');
+	    $the_key = get_closest_key( $arr, $input );
+	    return array_slice( $arr, $the_key );
+	}
+	private function get_closest_key( $arr, $input){
+	    if (isset($arr[$input])) {
+	        return $input;
+	    }
+
+	    foreach ($arr as $key => $value) {
+	        if ($key > $input) {
+	            if (prev($arr) === FALSE) {
+	                // If the input is smaller than the first key
+	                return $key;
+	            }
+	            $prevKey = key($arr);
+
+	            if (abs($key - $input) < abs($prevKey - $input)) {
+	                return $key;
+	            } else {
+	                return $prevKey;
+	            }
+	    	}
+	    }
+	}
+
+}

Hit.php

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+<?php
+class Hit {
+	protected $soldier = "unknown soldier";
+	protected $time = DateTime();
+
+	public function __construct( /*string*/ $soldier, /*DateTime*/ $time=DateTime() ) {
+		$this->soldier = $soldier;
+		$this->time = $time;
+	}
+
+	public function get_soldier(){
+	    return $this->soldier;
+	}
+	public function get_time(){
+	    return $this->time;
+	}
+}

apple

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+score:0                                          %

callback.php

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+<?php
+function write_score( $file, $score=null  ){
+	$handle = fopen($filename, "r");
+        if ($handle) {
+		$line = fgets($handle);
+		if( $score === null ){
+			$score = explode( " ", explode( ":", $line )[1])[0];
+			$score = int( $score ) +1;
+		}
+		$to_write = "score:".$score;
+		for( $j=0; $j< ( 49-strlen( $towrite ) ); $j++ ){
+			$to_write .= " ";
+		}
+		$to_write += "%";
+              	fwrite( $handle, $to_write );
+        }	
+}
+
+$api_token = "5032dc6f-172b-4f96-9835-98b616405161";
+
+// Receive YO's and increment hits 
+// Get parameters from url
+$target = $_GET[ 'target' ];
+$user = $_GET[ 'username' ];
+
+// Respond on YOFANSWAR
+if( $target === "YOFANSWAR" ){
+	$url = "http://api.justyo.co/yo";
+	$link = "http://yofanswar.thiery.io/";
+	$data = array('api_token' => $api_token, 'username' => $user, 'link' => $link);
+
+        $options = array(
+                'http' => array(
+                        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
+                        'method'  => 'POST',
+                        'content' => http_build_query($data),
+                ),
+        );
+        $context  = stream_context_create($options);
+        $result = file_get_contents($url, false, $context);
+} elseif( $target === "google" || $target === "apple" || $target === "microsoft" || $target === "yo" ){
+	$now = strtotime( "now" );
+	$midnight = strtotime( "today midnight" );
+	$file = escapeshellarg($target);
+	$latest_hit = `tail -n 1 $file`;
+	$score = `head -n 1 $file`;
+	if( $latest_hit =< $midnight ){
+		file_put_contents( $file, "% ".$score, FILE_APPEND );
+		file_put_contents( $file, $now.":".$user, FILE_APPEND );
+		write_score( $file, 1 );
+	} elseif( $latest_hit > $midnight ){
+		file_put_contents( $file, $now.":".$user, FILE_APPEND );
+		write_score( $file );
+	} else {
+		file_put_contents( "error", "ERROR at ".$now.":".$user, FILE_APPEND );
+	}
+}
+?>

google

@@ -0,0 +1 @@
+score:0                                          %

index.php

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+<html>
+<head>
+        <title>YoFansWar</title>
+        <meta charset="UTF-8"/>
+        <link rel="icon" type="image/png" href="assets/img/favicon.png" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0, user-scalable=yes"/>
+        <link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Montserrat:700,400">
+    	<link href="//netdna.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">        
+        <link href="style.css" rel="stylesheet" type="text/css"> 
+</head>
+<body>
+<?php 
+	include( 'entity_class.php' );
+//Read file, define entities, calculate proportions ?>
+	<div id='recent'></div>
+	<div id='battle-ground'>
+	<?php foreach( $entities as $entity ){
+		var_dump( $entity );
+	} ?>
+	</div>
+	<div class='legend'>
+	<?php foreach( $entities as $entity ){
+		echo $entity->color; echo $entity->name;
+	} ?>
+	<div>
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', '', 'auto');
+  ga('require', 'displayfeatures');
+  ga('send', 'pageview');
+
+</script>
+</body>
+</html>

microsoft

@@ -0,0 +1 @@
+score:0                                          %

yo

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+score:0                                          %