From 0cbb21ece8ab3ed516eb60615a3a20a0e1e60b5f Mon Sep 17 00:00:00 2001
From: xdrm-brackets <doowap31@gmail.com>
Date: Fri, 27 Oct 2017 17:58:32 +0200
Subject: [PATCH] Added build/log/core

---
 build/log/core/FileDriver.php | 134 ++++++++++++++++++++++++++++++++++
 build/log/core/Log.php        |  83 +++++++++++++++++++++
 2 files changed, 217 insertions(+)
 create mode 100755 build/log/core/FileDriver.php
 create mode 100755 build/log/core/Log.php

diff --git a/build/log/core/FileDriver.php b/build/log/core/FileDriver.php
new file mode 100755
index 0000000..7d364c7
--- /dev/null
+++ b/build/log/core/FileDriver.php
@@ -0,0 +1,134 @@
+<?php
+
+	namespace log\core;
+
+
+	class FileDriver{
+
+
+
+		/* CREATES A FILE WITH ITS NEEDED DIRECTORIES
+		*
+		* @path<String> 										Path of the needed file
+		*
+		* @return created<Boolean> 								If the file has been created successfully
+		*
+		*/
+		public static function create($file){
+			/* (0) Checks arguments */
+			if( !is_string($file) || is_dir($file) )
+				return false;
+
+			/* (1) Creates file */
+			try{
+				return fclose( fopen($file, 'w') );
+			}catch(\Exception $e){ return false; }
+		}
+
+
+		/* READS FILE'S CONTENT
+		*
+		* @file<String> 										File to read
+		*
+		*/
+		public static function read($file){
+			/* (0) Checks arguments */
+			if( !is_string($file) )
+				throw new \Exception('Wrong argument for read(<String>).');
+
+			/* (1) Initializing driver on file (read-flag) */
+			$driver = new \SplFileObject($file, 'r');
+
+			/* (2) Read lines */
+			$read = '';
+
+			$line = 0;
+			while( $driver->current() ){
+				$read .= $driver->current();
+				$driver->next();
+			}
+
+			/* (3) Returns result */
+			return $read;
+		}
+
+		/* READS A FILE'S SPECIFIC LINE
+		*
+		* @file<String> 										File to read
+		* @line<int>											Line to read
+		*
+		*/
+		public static function readline($file, $line){
+			/* (0) Checks arguments */
+			if( !is_string($file) || intval($line) !== $line )
+				throw new \Exception('Wrong argument for readline(<String>, <int>).');
+
+			/* (1) Initializing driver on file (read-flag) */
+			$driver = new \SplFileObject($file, 'r');
+
+			/* (2) Goto specific line */
+			$driver->seek($line);
+
+			/* (3) Return line's content */
+			if( $driver->key() == $line )
+				return $driver->current();
+			else
+				return null;
+		}
+
+
+		/* WRITES CONTENT TO A FILE
+		*
+		* @file<String>											File to write to
+		* @content<String>										Content to write
+		*
+		* @return written<Boolean>								Returns if the content have been written successfully
+		*
+		* @note: Creates file if it is possible with `fopen()`
+		*
+		*/
+		public static function write($file, $content){
+			/* (0) Checks arguments */
+			if( !is_string($file) || !is_string($content) )
+				return false;
+
+			/* (1) Erase file */
+			try{
+				fclose( fopen($file, 'w') );
+			}catch(\Exception $e){ return false; }
+
+			/* (2) Get driver (write-flag) */
+			$driver = new \SplFileObject($file, 'r+');
+
+			/* (3) Writes content */
+			return !is_null( $driver->fwrite($content) );
+
+		}
+
+
+		/* APPENDS CONTENT TO A FILE
+		*
+		* @file<String> 										File to append content to
+		* @content<String>										Content to append
+		*
+		* @return append<Boolean>								Returns if the content have been append successfully
+		*
+		* @note: If file doesn't exists, returns false
+		*
+		*/
+		public static function append($file, $content){
+			/* (0) Checks arguments */
+			if( !is_file($file) || !is_string($content) )
+				return false;
+
+			/* (1) Get driver (append-flag) */
+			$driver = new \SplFileObject($file, 'a');
+
+			/* (2) append content */
+			return !is_null( $driver->fwrite($content.PHP_EOL) );
+		}
+
+
+	}
+
+?>
diff --git a/build/log/core/Log.php b/build/log/core/Log.php
new file mode 100755
index 0000000..be8472f
--- /dev/null
+++ b/build/log/core/Log.php
@@ -0,0 +1,83 @@
+<?php
+
+	namespace log\core;
+
+	class Log{
+
+		private static $maxlen = 50;
+
+		/* [1] Attributes
+		=========================================================*/
+		private $label; // label of the log system
+		private $file;  // absolute path to logfile
+
+
+		/* [2] Constructor
+		*
+		* @label<String> 												Label of the logger
+		*
+		=========================================================*/
+		private function __construct($label){
+			/* (1) Set logfile and label */
+			$this->label = $label;
+			$this->file  = __BUILD__."/log/log/$label.log";
+
+			/* (2) Create file if doesn't exist already */
+			if( !is_file($this->file) )
+				FileDriver::create($this->file);
+		}
+
+
+		/* [3] Writes a new log to the file
+		*
+		* @content<String> 												Content to log
+		* @tag<String> 													[OPT] Tag of the log (category)
+		*
+		* @return outputname<outputtype> 								outputdesc
+		*
+		=========================================================*/
+		public function log($content="...", $tag="default"){
+			/* (1) Get time data */
+			$timestamp = time();
+			$date      = date('Y-m-s H:i:s', $timestamp);
+
+			/* (2) Create beginning string */
+			$body = "$timestamp | $date | [$tag] ";
+			$headerl = strlen($body);
+
+			/* (3) Split content by length */
+			$body .= substr($content, 0, self::$maxlen);
+
+			for( $i = self::$maxlen, $l = strlen($content) ; $i < $l ; $i += self::$maxlen )
+				$body .= "\n".str_repeat(" ", $headerl).substr($content, $i, self::$maxlen);
+
+			/* (4) Append to log file */
+			FileDriver::append($this->file, $body);
+		}
+
+
+
+
+
+
+		/* [4] Multiton attributes
+		=========================================================*/
+		private static $instance = []; // instances
+
+		/* [5] Multiton Manager
+		*
+		* @label<String> 												Label of the logger you want
+		*
+		* @return instance<Log> 										instance of the wanted logger
+		*
+		=========================================================*/
+		public static function get($label="default"){
+			/* (1) Create if doesn't exist */
+			if( !isset(self::$instance[$label]) )
+				self::$instance[$label] = new Log($label);
+
+			/* (2) Return instance for all cases */
+			return self::$instance[$label];
+		}
+
+	}