setup.php

<?php
// Check and Set Setup Done flag
if (isset($setupPhpDone)) {
   // do nothing
} else {
   $setupPhpDone = true;

    // common functions
    function errorExit($str)
    {
	error_log($str, 0);
	print "<pre>";
	print date("Y M j \(D\) G:i:s T\n");
	print "$str\n";
	print "</pre>";
	die(json_encode(array('success' => false)));
    }

    // changing file in $modeDir to record current mode
    function changeMode($modeDir, $newMode, $allModes, $matchMessage)
    {
	if (!file_exists($modeDir . $newMode)) {
	    // Changing mode in $modeDir
	    foreach($allModes as $mode => $value) {
		$fname = $modeDir . $mode;
		if ($mode <> $newMode) {
		    if (file_exists($fname)) {
			// deleting unmaching mode file
		    unlink($fname); // delete file
		    }
		} else {
		    // creating new modefile
		    $cmd = "echo > " . $fname;
		    exec($cmd);
		    error_log($matchMessage . ": exec($cmd);");
		}
	    }
	}
    }

    // Set Timezone
       date_default_timezone_set('America/Los_Angeles');
    // Read JSON database for outlet coding
    $outletCodeFile='./outletCodes.json';
    if (!file_exists($outletCodeFile)) {
	errorExit("$outletCodeFile is missing, please set it up.");
    } else {
	$rules = file_get_contents($outletCodeFile);
	// To prevent error
	$rules = str_replace('&quot;', '"', $rules);
	$codes = json_decode($rules, true);
	// $codes = json_decode($rules);
	if (!$codes) {
	    errorExit("Error in $outletCodeFile");
	}
    }

    // Read Timersetup database
    $timerSetupFile='./timerSetup.json';
	if (!file_exists($timerSetupFile)) {
	errorExit("$timerSetupFile is missing, please set it up.");
	die(json_encode(array('success' => false)));
    } else {
	$timers = file_get_contents($timerSetupFile);
	// To prevent error
	$timers = str_replace('&quot;', '"', $timers);
	$timerSetup = json_decode($timers, true);
	// $codes = json_decode($timers);
	if (!$timerSetup) {
	    errorExit("Error in $timerSetupFile");
	}
    }

    // Path to the codesend binary (current directory is the default)
    $codeSendPath = './codesend';

    if (!file_exists($codeSendPath)) {
	errorExit("$codeSendPath is missing, please edit the script");
    }

    // Path to onState file location
    $onStateDir = './OnState/';
    $shuffleModeDir = './OnState/ShuffleMode/';

    // print "<pre>";
    // print_r($codes);
    // error_log($outletCodeFile);
    //   var_dump($codes);
    //   error_log(ob_get_clean()); // get vardump string
    // error_log(print_r($codes));
    // print "</pre>";

    // This PIN is not the first PIN on the Raspberry Pi GPIO header!
    // Consult https://projects.drogon.net/raspberry-pi/wiringpi/pins/
    // for more information.
    $codeSendPIN = (string) $codes['Global']['codeSendPin'];

    // Pulse length depends on the RF outlets you are using. Use RFSniffer to see what pulse length your device uses.
    $codeSendPulseLength = (string) $codes['Global']['pulseLen'];

    // Setting Subarray
    //   codesExist for the receiver (Outlet) exist. Removed 'NA'.
    //   codesUsed for the outlet is used. Removed 'NA' and 'Unused'.
    $outletsExists = array();
    $outletsUsed = array();
    foreach ($codes['Outlets'] as $light => $value) {
	if ($value['loc'] <> 'NA') {
	    $outletsExists =  $outletsExists + array($light => $value);
	    if ($value['loc'] <> 'Unused') {
		$outletsUsed = $outletsUsed + array($light => $value);
	    }
	}
    }
    // debug code
    if (0) {
	print "<pre>";
	print '---- $codes["Outlets"] ----' . "\n";
	var_dump($codes['Outlets']);
	print '---- $outletsExists ----' . "\n";
	var_dump($outletsExists);
	print '---- $outletsUsed ----' . "\n";
	var_dump($outletsUsed);
	print "</pre>";
    }

    // Specify code book to use.
    // $codeBook = $codes['Outlets'];
    $codeBook = $outletsExists;  // now works.
}
?>