[Update] Loop -> implemented information cache (action/current state/states) + loop minimum"

[Todo] Implement loop function using actions/states
[Done] Implemented first auth verification (if in list but no action check)

lib/mfrc522/source/loop.php

@@ -4,28 +4,173 @@
 
 	require_once __DIR__.'/../../include/php/const';
 
-	$f_authlist;
+	$f_auth;
 	$f_accesslog;
+	$f_states;
+	$f_actions;
+
+	$state = [];
+
+	$actions  = [];
+	$states   = [];
+
+	$last_user = null;
+	$timeout   = 1;
+
+
+
+
+
+
+
+	/* RETURNS THE PERMISSIONS FOR A SPECIFIC CODE AND AN ACTION
+	*
+	* @code<string>							Some RFID code
+	*
+	* @return user<array>						User info if found ; else NULL
+	*
+	*/
+	function auth($code){
+
+		global $f_auth;
+
+
+		/* (1) Goto first line */
+		$f_auth->seek(0);
+
+		/* (2) Parse each line */
+		while( $f_auth->eof() ){
+			
+			/* (3) Try to parse line */
+			$parsed = json_decode($f_auth->fgets(), true);
+
+			/* (3) Ignore if parse error */
+			if( is_null($parsed) )
+				continue;
+
+			/* (4) If wrong code -> go to next */
+			if( $parsed[0] != $code )
+				continue;
+		
+			/* (5) return user info */
+			return [
+				'id'  => $parsed[1],
+				'can' => $parsed[2]
+			];
+
+		}
+
+		/* (6) Return FALSE if not found */
+		return null;
+
+	}
+
+
+
+
+
+
+
+
+
+
+
+
+
 
-	$last_card;
-	$times;
 
 
 	function mfrc522_setup(){
 
+		/* [0] Initialize global variables
+		=========================================================*/
+		/* (1) File descriptiors */
+		global $f_auth, $f_accesslog;
+
+		/* (2) Caches */
+		global $actions, $states, $state;
+
+
+
 		/* [1] Open file descriptors on useful files
 		=========================================================*/
-		$f_authlist  = new SplFileObject(AUTH_LIST, 'r');
+		/* (1) Read accesses */
+		$f_auth      = new SplFileObject(AUTH_LIST, 'r');
+		$f_states    = new SplFileObject(STATES_CONF, 'r');
+		$f_actions   = new SplFileObject(ACTIONS_CONF, 'r');
+		$f_gstate    = @file_get_contents(STATE_CONF);
+
+		/* (2) Append accesses (logs) */
 		$f_accesslog = new SplFileObject(ACCESS_LOG, 'a');
 
-		/* [2] Parse @authlist to cache [action]=>[rfid1, rfid2, ..]
-		=========================================================*/
 
 
-		/* [3] Initialize global variables
+		/* [2] Parse ACTIONS and cache them
 		=========================================================*/
-		$last_card = null;
+		/* (1) Parse each line */
-		$times     = 0;
+		while( $f_actions->eof() ){
+			
+			/* (2) Try to parse line */
+			$parsed = json_decode($f_actions->fgets(), true);
+
+			/* (2) Ignore if parse error */
+			if( is_null($parsed) )
+				continue;
+
+			/* (3) Add key (timeout) to cache */
+			if( !isset($actions[$parsed[0]] )
+				$actions[$parsed[0]] = [];
+
+			/* (4) Add entry to cache */
+			$actions[$parsed[0]][] = [
+				'id'   => $parsed[1],
+				'prev' => $parsed[2],
+				'next' => $parsed[3],
+			];
+
+		}
+
+		/* (5) Free file descriptor */
+		$f_actions = null;
+
+
+
+		/* [3] Parse STATES and cache them
+		=========================================================*/
+		/* (1) Parse each line */
+		while( $f_states->eof() ){
+			
+			/* (2) Try to parse line */
+			$parsed = json_decode($f_states->fgets(), true);
+
+			/* (2) Ignore if parse error */
+			if( is_null($parsed) )
+				continue;
+
+			/* (3) Add entry to cache */
+			$states[] = $parsed;
+
+		}
+
+		/* (4) Free file descriptor */
+		$f_states = null;
+
+
+
+		/* [4] Cache global state
+		=========================================================*/
+		/* (1) Check file */
+		if( $f_gstate === false )
+			return;
+
+		/* (2) Remove external spaces */
+		$f_gstate = preg_replace('@^\s+@', '', $f_gstate);
+		$f_gstate = preg_replace('@\s+$@', '', $f_gstate);
+
+		/* (3) For each character create an entry */
+		for( $c = 0 ; $c < strlen($f_gstate) ; $c++ )
+			$state[] = $c;
+	
 
 	}
 
@@ -35,6 +180,11 @@
 
 	function mfrc522_loop(){
 
+		/* [1] Load global variables
+		=========================================================*/
+		global $last_user;
+		global $timeout;
+
 		/* [1] Wait for rfid card
 		=========================================================*/
 		while( ($code=syscall(SOURCE_DIR.'/lib/mfrc522/read')) === false );
@@ -48,10 +198,32 @@
 		
 		/* [2] Check for user in auth list
 		=========================================================*/
+		/* (0) CHECK FOR USER INFO IN AUTH LIST
+		---------------------------------------------------------*/
+		$user = auth($code);
+
+
+		/* (1) UNKNOWN USER -> reset count
+		---------------------------------------------------------*/
+		if( is_null($user) ){
+			
+			$last_user = null;
+			$timeout   = 1;
+
+
+		/* (2) KNOWN USER -> Manage timeout
+		---------------------------------------------------------*/
+		}else{
+
+			/* (1) If same as last -> increment @timeout */
+			if( $last_user == $user['id'] )
+				$timeout++;
+
+
+
+		}
 		
 
-		/* [3] Manage action (states)
-		=========================================================*/
 
 
 		/* [n] Wait for 0.5 s before reading again