#!/usr/bin/env php
<?php


function checkExit()
{

	if (file_exists("/tmp/reloadspineldump")) {
		die("Must reload...");
	}
}

function mt()
{

	return microtime(TRUE);
}

function dumpbyte($b)
{

	if (ctype_print($b)) {
		C::cyan($b);
	} else {
		C::white(bin2hex($b));
	}
}

echo "Spinel debugger (STDIN)!\n";

include __DIR__ . "/lib/PhpSerial.php";
include __DIR__ . "/lib/Colors.php";


$serial = new PhpSerial;
// First we must specify the device. This works on both linux and windows (if
// your linux serial device is /dev/ttyS0 for COM1, etc)
$serial->deviceSet("/dev/ttyUSB0");
// We can change the baud rate, parity, length, stop bits, flow control
$serial->confBaudRate(38400);
$serial->confParity("none");
$serial->confCharacterLength(8);
$serial->confStopBits(1);
$serial->confFlowControl("none");

$serial->deviceOpen();

$reqTimeout = 2;
$reqOpened = FALSE;
$reqPos = 0;


$rForm = 0;
$rLen = 999;
$rAddr = 0;
$rSig = 0;
$thrownAway = 0;

$mtStart = mt();
$mtEnd = mt();

// nekonečná smyčka
while (TRUE) {
	// exit
	checkExit();
	// timeout
	if ($reqOpened && (($mtStart + $reqTimeout) < mt())) {

		C::red(C::BOLD . " Timeout reached... restarting transaction\n");
		$reqOpened = FALSE;
	}

	// načtení bajtu
	$str = $serial->readPort(1);
	if (strlen($str) == 0) {
		// nenačetl, tak pokračujeme
		continue;
	}

	for ($i = 0; $i < strlen($str); $i++) {
		$s = substr($str, $i, 1);
		$thrownAway++;

		if ((!$reqOpened) && ($s == '*')) {
			C::nl();
			C::green(C::BOLD . "*");
			$reqOpened = TRUE;
			$reqPos = 1;
			$mtStart = mt();

			$rForm = 0;
			$rLen = 999;
			$rAddr = 0;
			continue;
		}

		if (!$reqOpened) {
			continue;
		}

		switch ($reqPos) {
			// format
			case 1:
				$rForm = ord($s);
				C::lblue(C::BOLD . $rForm);
				$reqPos++;
				break;
			// prvni byte delky
			case 2:
				$rLen = ord($s);
				$rLen *= 256;
				$reqPos++;
				break;
			// druhy byte delky
			case 3:
				$rLen += ord($s);
				echo " L:";
				C::yellow("$rLen");
				$reqPos++;
				break;
			// adresa
			case 4:
				$rAddr = bin2hex($s);
				echo " A:0x";
				C::lred(C::BOLD . $rAddr);
				$reqPos++;
				break;
			// signature
			case 5:
				$rSig = ord($s);
				echo " S:";
				C::green(C::BOLD . $rSig);
				$reqPos++;
				break;

			default:
				$reqPos++;
				dumpbyte($s);
				break;
		}

		if (ord($s) == 13) {

			$reqOpened = FALSE;
			$thrownAway = 0;
			C::nl();
			echo "Stats: exp:";
			C::output($rLen, "purple");
			echo " recv:";
			C::output($reqPos - 4, 'light_green');
			$fromLast = round(1000*($mtStart - $mtEnd), 2);
			$mtEnd = mt();
			$duration = round(1000*($mtEnd - $mtStart), 2);
			echo " DIFF:";
			C::output($fromLast . "ms", 'cyan');
			echo " DT:";
			C::output($duration . "ms", 'light_cyan');

			C::nl();

		}
	}
}