www-thermferm/profiles.php

<?php
/*****************************************************************************
 * Copyright (C) 2014
 *   
 * Michiel Broek <mbroek at mbse dot eu>
 *
 * This file is part of ThermFerm
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * ThermFerm is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with ThermFerm; see the file COPYING.  If not, write to the Free
 * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *****************************************************************************/

require_once('utilities.php');

/*
 * Each time this page is loaded, get the profiles from the server.
 * $arr contains the complete reply of he PROFILE LIST command.
 */
$answer = send_cmd("PROFILE LIST");
$arr = explode("\r\n", $answer);


if (isset($_GET['action'])) {
    switch ($_GET['action']) {
	case 'edit':		profile_edit();
				break;
	case 'esteps':		profile_steps();
				break;
	default:		break;
    }
} elseif (isset($_POST['action'])) {
    switch ($_POST['action']) {
	case 'testdata':	testdata();
				break;
	case 'teststeps':	teststeps();
				break;
	default:		break;
    }
} else {
    profile_list();
}

exit;


/*
 * Profile steps
 */
function profile_steps()
{
    global $arr;
    $UUID = $_GET['UUID'];
    
    /*
     * $steps contains all steps of a profile
     */
    $steps = array (
	1  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	2  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	3  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	4  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	5  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	6  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	7  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
	8  => array("steptime" => 0, "resttime" => 1, "target" => 20.0 ),
    );

    $answer = send_cmd("PROFILE GETS ".$UUID);
    $psteps = explode("\r\n", $answer);

    if (startsWith($arr[0], "212")) {
	$j = 1;
	while (1) {
	    if (strcmp($psteps[$j], ".") == 0)
		break;
	    $f = explode(",", $psteps[$j]);
	    $steps[$j]["steptime"] = $f[0];
	    $steps[$j]["resttime"] = $f[1];
	    $steps[$j]["target"] = $f[2];
	    $j++;
	}
    }

    edit_steps($UUID, $steps, "", "ThermFerm - Edit Profile Steps");
}


function edit_steps($UUID, $steps, $error_message, $heading)
{
    $outstr  = build_header($heading);
    $outstr .= '    <div id="errors">'.PHP_EOL;
    $outstr .= '     '.$error_message.PHP_EOL;
    $outstr .= '    </div> <!-- errors -->'.PHP_EOL;
    $outstr .= '    <div id="etable">'.PHP_EOL;
    $outstr .= '     <form method="POST" action="profiles.php">'.PHP_EOL;
    $outstr .= '      <table class="editor">'.PHP_EOL;
    $outstr .= '       <tr class="trhead">'.PHP_EOL;
    $outstr .= '        <td>Step</td>'.PHP_EOL;
    $outstr .= '        <td>Steptime</td>'.PHP_EOL;
    $outstr .= '        <td>Resttime</td>'.PHP_EOL;
    $outstr .= '        <td>Temperature</td>'.PHP_EOL;
    $outstr .= '       </tr>'.PHP_EOL;

    for ($i = 1; $i <= 8; $i++) {
    	$outstr .= '       <tr class="editor">'.PHP_EOL;
    	$outstr .= '        <td>Step '.$i.'</td>'.PHP_EOL;
    	$outstr .= '        <td><input type="text" name="steptime'.$i.'" size="4" value="'.$steps[$i]["steptime"].'"></td>'.PHP_EOL;
    	$outstr .= '        <td><input type="text" name="resttime'.$i.'" size="4" value="'.$steps[$i]["resttime"].'"></td>'.PHP_EOL;
    	$outstr .= '        <td><input type="text" name="target'.$i.'" size="4" value="'.$steps[$i]["target"].'"></td>'.PHP_EOL;
    	$outstr .= '       </tr>'.PHP_EOL;
    }

    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname">&nbsp;</td>'.PHP_EOL;
    $outstr .= '        <td class="editname"><input type="submit" value="Save" name="key"></td>'.PHP_EOL;
    $outstr .= '        <td class="editname"><input type="submit" value="Cancel" name="key">';
    $outstr .= '<input type="hidden" value="teststeps" name="action">';
    $outstr .= '<input type="hidden" value="'.$UUID.'" name="UUID"></td>'.PHP_EOL;
    $outstr .= '        <td class="editname">&nbsp;</td>'.PHP_EOL;
    $outstr .= '       </tr>'.PHP_EOL;
    $outstr .= '      </table>'.PHP_EOL;
    $outstr .= '     </form>'.PHP_EOL;
    $outstr .= '    </div> <!-- etable -->'.PHP_EOL;
    $outstr .= '    <div id="atable" style="margin-left: 100px; width:780px;">'.PHP_EOL;
    $outstr .= '    The steptime is the time to go from the previous to the target temperature.'.PHP_EOL;
    $outstr .= '    The resttime is the total time in this step including the steptime.'.PHP_EOL;
    $outstr .= '    Steps are valid if the steptime is greater then zero.'.PHP_EOL;
    $outstr .= '    Order is important.'.PHP_EOL;
    $outstr .= '    Lines with a steptime of zero are ignored.'.PHP_EOL;
    $outstr .= '    The step- and resttimes are in hours.'.PHP_EOL;
    $outstr .= '    </div> <!-- atable -->'.PHP_EOL;
    $outstr .= build_footer();
    echo $outstr;
}


/*
 * Profile add
 *
 * @param string $_POST['Name'] The rpofile name
 */
function profile_add() {

    if ($_POST['key'] == 'Add') {
	send_cmd("PROFILE ADD ".$_POST['Name']);
    }
    unset($_POST['UUID']);
    unset($_POST['Name']);
    unset($_POST['Steps']);
    unset($_POST['key']);
    unset($_POST['command']);
    load('profiles.php');
}


/*
 * Profile update or delete
 *
 * @param string $_POST['UUID'] The profile UUID
 * @param string $_POST['Name'] The profile name
 * @param string $_POST['Inittemp'] The profile initial temperature
 * @param string $_POST['key'] The button pressed.
 */
function profile_update() {
    /*
     * Build the update command
     */
    if ($_POST['key'] == 'Delete') {
	send_cmd("PROFILE DEL ".$_POST['UUID']);
    }


    if ($_POST['key'] == 'Save') {
	$sock = open_socket();
	if ($sock != false) {
	    /*
	     * Send command and absorb the result.
	     */
	    socket_write($sock, "PROFILE PUT ".$_POST['UUID'], 4096);
	    usleep(20000);
	    socket_write($sock, "NAME,".$_POST['Name'], 4096);
	    usleep(20000);
	    socket_write($sock, "INITTEMP,".$_POST['Inittemp'], 4096);
	    usleep(20000);
	    socket_write($sock, ".", 4096);
	    while (1) {
		$line = socket_read($sock, 4096);
		if ($line === '')
		    break;
	    }
	    socket_close($sock);
	}
    }

    unset($_POST['UUID']);
    unset($_POST['Name']);
    unset($_POST['Inittemp']);
    unset($_POST['key']);
    unset($_POST['command']);
    load('profiles.php');
}


/*
 * Test input of a modified or new profile.
 *
 * @param string $_POST['UUID'] Unique record UUID
 * @param int $_POST['steptime'n] Profile steptime
 * @param int $_POST['resttime'n] Profile resttime
 * @param float $_POST['target'n] Profile target temperature
 * @param string $_POST['key'] Key choice, Save or Cancel
 *
 * Return: 0 = Ok
 *         1 = Missing data
 *         2 = A resttime < steptime
 *         3 = A target temperature out of range
 *        99 = Cancel key
 */
function test_thesteps() {

    global $arr;

//    print_r($_POST);

    for ($i = 1; $i <= 8; $i++) {
	if ((! isset($_POST['steptime'.$i])) || (! isset($_POST['resttime'.$i])) || (! isset($_POST['target'.$i])))
		return 1;
	if ((strlen($_POST['steptime'.$i]) == 0) || (strlen($_POST['resttime'.$i]) == 0) || (strlen($_POST['target'.$i]) == 0))
		return 1;
    }

    if (isset($_POST['UUID']) && isset($_POST['key'])) {

        if ($_POST['key'] == 'Cancel')
            return 99;

	for ($i = 1; $i <= 8; $i++) {
	    if ($_POST['resttime'.$i] < $_POST['steptime'.$i])
		return 2;

	    if (($_POST['target'.$i] < -5) || ($_POST['target'.$i] > 30))
		return 3;
	}
    } else {
        return 1;
    }

    return 0;
}


/*
 * Test result from edit_steps screen and do next action
 */
function teststeps() {

    $result = test_thesteps();
    $error = '';

    switch ($result) {
    	case 0: $sock = open_socket();
		if ($sock != false) {
		    socket_write($sock, 'PROFILE PUTS '.$_POST['UUID'], 4096);
		    for ($i = 1; $i <= 8; $i++) {
			/*
			 * Use small delays so the remote really sees single lines.
			 * This is a real bug between client/server programming,
			 * the PHP side is line oriented, the server is reading blocks.
			 * So we just send the data slowly and the server just sees lines.
			 */
			if ($_POST['steptime'.$i] > 0) {
			    usleep(20000);
			    socket_write($sock, $_POST['steptime'.$i].','.$_POST['resttime'.$i].','.$_POST['target'.$i], 4096);
			}
			unset($_POST['steptime'.$i]);
			unset($_POST['resttime'.$i]);
			unset($_POST['target'.$i]);
		    }
		    usleep(20000);
		    socket_write($sock, '.', 4096);
		    /* Absorb response */
		    while (1) {
			$line = socket_read($sock, 4096);
			if ($line === '')
			    break;
		    }
		    socket_close($sock);
		    unset($_POST['UUID']);
		    unset($_POST['key']);
		    load('profiles.php');
		    return;
    		}
		break;
        case 1: $error = 'Missing data';
		break;
	case 2: $error = 'A resttime is shorter then the steptime';
		break;
	case 3:	$error = 'A target temperature is out of range';
		break;
        case 99:
                load('profiles.php');
                break;
    }

    $steps = array (
	1  => array("steptime" => $_POST['steptime1'], "resttime" => $_POST['resttime1'], "target" => $_POST['target1'] ),
	2  => array("steptime" => $_POST['steptime2'], "resttime" => $_POST['resttime2'], "target" => $_POST['target2'] ),
	3  => array("steptime" => $_POST['steptime3'], "resttime" => $_POST['resttime3'], "target" => $_POST['target3'] ),
	4  => array("steptime" => $_POST['steptime4'], "resttime" => $_POST['resttime4'], "target" => $_POST['target4'] ),
	5  => array("steptime" => $_POST['steptime5'], "resttime" => $_POST['resttime5'], "target" => $_POST['target5'] ),
	6  => array("steptime" => $_POST['steptime6'], "resttime" => $_POST['resttime6'], "target" => $_POST['target6'] ),
	7  => array("steptime" => $_POST['steptime7'], "resttime" => $_POST['resttime7'], "target" => $_POST['target7'] ),
	8  => array("steptime" => $_POST['steptime8'], "resttime" => $_POST['resttime8'], "target" => $_POST['target8'] ),
    );
    
    edit_steps($_POST['UUID'], $steps, $error, "ThermFerm - Edit Profile Steps");
}


/*
 * Test input of a modified or new profile.
 *
 * @param string $_POST['UUID'] Unique record UUID
 * @param string $_POST['Name'] Profile name
 * @param float $_POST['Inittemp'] Profile initial temperature
 * @param string $_POST['key'] Key choice, Save or Cancel
 * @param string $_POST['command'] Command used, 'add' or 'update'
 *
 * Return: 0 = Ok
 *         1 = Missing data
 *         2 = Name field too short
 *         3 = Name already in use
 *        99 = Cancel key
 */
function test_thedata() {

    global $arr;

    if (isset($_POST['UUID']) && isset($_POST['Name']) && isset($_POST['Inittemp']) && isset($_POST['key']) && isset($_POST['command'])) {

	if ($_POST['key'] == 'Cancel')
	    return 99;

	if (strlen($_POST['Name']) < 2)
	    return 2;

	if (startsWith($arr[0], "212")) {
	    $j = 1;
	    while (1) {
		if (strcmp($arr[$j], ".") == 0)
		    break;
		$f = explode(",", $arr[$j]);
		if (strcmp($f[0], $_POST['UUID']) && (strcmp($f[1], $_POST['Name']) == 0)) {
		    return 3;
		}
		$j++;
	    }
	}

    } else {
	return 1;
    }

    return 0;
}


/*
 * Test result from edit screen and do next action
 */
function testdata() {

    $result = test_thedata();
    $error = '';

    switch ($result) {
	case 0:	if ($_POST['command'] == 'add') {
		    profile_add();
		    return;
	        } else if ($_POST['command'] == 'update') {
		    profile_update();
		    return;
		}
		break;
	case 1:	$error = 'Missing data';
		break;
	case 2:	$error = 'The name is too short';
		break;
	case 3:	$error = 'The name is already in use, choose another one';
		break;
	case 99:	
		load('profiles.php');
		break;
    }

    if ($_POST['command'] == 'add') {
	$heading = 'ThermFerm - Add Profile';
    } else {
	$heading = 'ThermFerm - Edit Profile';
    }

    edit_screen($_POST['UUID'], $_POST['command'], $heading, $error);
}


/*
 * Profiles edit screen. Used by profile_edit(), profile_add() and testdata()
 *
 * @param string $UUID The record UUID (fixed).
 * @param string $Name The Profile Name.
 * @param string $command 'add' or 'update'
 * @param string $heading Pagina heading title.
 * @Param string $error_message Blank or previous error.
 */
function edit_screen($UUID, $command, $heading, $error_message) {

    /*
     * Get current profile data
     */
    $answer = send_cmd("PROFILE GET ".$UUID);
    $reply = explode("\r\n", $answer);

    $outstr  = build_header($heading);
    $outstr .= '    <div id="errors">'.PHP_EOL;
    $outstr .= '     '.$error_message.PHP_EOL;
    $outstr .= '    </div> <!-- errors -->'.PHP_EOL;
    $outstr .= '    <div id="etable">'.PHP_EOL;
    $outstr .= '     <form method="POST" action="profiles.php">'.PHP_EOL;
    $outstr .= '      <table class="editor">'.PHP_EOL;

    if (startsWith($reply[0], "213")) {
	$i = 1;
	while (1) {
	    if (strcmp($reply[$i], ".") == 0)
		break;
	    $f = explode(",", $reply[$i]);

    	    if ($f[0] == "NAME") {
    		$outstr .= '       <tr class="editor">'.PHP_EOL;
    		$outstr .= '        <td class="editname">Profile Name</td>'.PHP_EOL;
    		$outstr .= '        <td class="editfield"><input type="text" name="Name" size="50" value="'.$f[1].'"></td>'.PHP_EOL;
    		$outstr .= '       </tr>'.PHP_EOL;
	    }
	    if ($f[0] == "INITTEMP") {
		$outstr .= '       <tr class="editor">'.PHP_EOL;
		$outstr .= '        <td class="editname">Initial temperature</td>'.PHP_EOL;
		$outstr .= '        <td class="editfield"><input type="text" name="Inittemp" size="5" value="'.$f[1].'"></td>'.PHP_EOL;
		$outstr .= '       </tr>'.PHP_EOL;
	    }
	    $i++;
	}
    }
    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname"><input type="submit" value="Save" name="key"></td>'.PHP_EOL;
    $outstr .= '        <td class="editfield"><input type="submit" value="Cancel" name="key">';
    $outstr .= '<input type="submit" value="Delete" name="key" style="margin-left: 100px;">';
    $outstr .= '<input type="hidden" value="testdata" name="action">';
    $outstr .= '<input type="hidden" value="'.$command.'" name="command">';
    $outstr .= '<input type="hidden" value="'.$UUID.'" name="UUID"></td>'.PHP_EOL;
    $outstr .= '       </tr>'.PHP_EOL;
    $outstr .= '      </table>'.PHP_EOL;
    $outstr .= '     </form>'.PHP_EOL;
    $outstr .= '    </div> <!-- etable -->'.PHP_EOL;
    $outstr .= build_footer();
    echo $outstr;
}


/*
 * Edit a Profile. Fetches the record data and shows the edit screen.
 *
 * @param string $_GET['action'] Must be 'edit'.
 * @param string $_GET['UUID'] The UUID of the Profile.
 */
function profile_edit() {
    if ($_GET['action'] == 'edit') {
	edit_screen($_GET['UUID'], 'update', 'ThermFerm - Edit Profile', '');
	return;
    } else {
	load('profiles.php');
    }
}


/*
 * @link Edit profile
 * @link Add profile
 */
function profile_list() {

    global $arr;

    $outstr  = build_header("ThermFerm - Profiles");

    $outstr .= '    <div id="errors">'.PHP_EOL;
    $outstr .= '    </div> <!-- errors -->'.PHP_EOL;
    $outstr .= '    <div id="etable">'.PHP_EOL;
    $outstr .= '     <table class="setup">'.PHP_EOL;
    $outstr .= '      <tr class="trhead">'.PHP_EOL;
    $outstr .= '       <td class="setup" style="width: 300px;">UUID</td>'.PHP_EOL;
    $outstr .= '       <td class="setup" style="width: 300px;">Name</td>'.PHP_EOL;
    $outstr .= '       <td class="setup" style="width: 40px;">Steps</td>'.PHP_EOL;
    $outstr .= '       <td class="setup" style="width: 40px;">Edit</td>'.PHP_EOL;
    $outstr .= '      </tr>'.PHP_EOL;

    if (startsWith($arr[0], "212")) {
    	$j = 1;
    	while (1) {
	    if (strcmp($arr[$j], ".") == 0)
	    	break;
	    $f = explode(",", $arr[$j]);
	    $outstr .= '      <tr class="setup">'.PHP_EOL;
	    $outstr .= '       <td class="setup">'.$f[0].'</td>'.PHP_EOL;
	    $outstr .= '       <td class="setup">'.$f[1].'</td>'.PHP_EOL;
	    if ($f[3] == 1) {
		$outstr .= '       <td class="setup">'.$f[2].'</td>'.PHP_EOL;
	    	$outstr .= '       <td class="setup">Busy</td>'.PHP_EOL;
	    } else {
		$outstr .= '       <td class="setup"><a href="profiles.php?action=esteps&amp;UUID='.$f[0].'">'.$f[2].'</a></td>'.PHP_EOL;
		$outstr .= '       <td class="setup"><a href="profiles.php?action=edit&amp;UUID='.$f[0].'">Edit</a></td>'.PHP_EOL;
	    }
	    $outstr .= '      </tr>'.PHP_EOL;
	    $j++;
    	}
    }

    $outstr .= '     </table>'.PHP_EOL;
    $outstr .= '    </div> <!-- etable -->'.PHP_EOL;
    $outstr .= '    <div id="atable">'.PHP_EOL;

    $outstr .= '     <form method="POST" action="profiles.php">'.PHP_EOL;
    $outstr .= '      <table class="editor">'.PHP_EOL;
    $outstr .= '      <tr class="trhead"><td colspan="3">Add new profile</td></tr>'.PHP_EOL;
    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname">Profile Name</td>'.PHP_EOL;
    $outstr .= '        <td class="editfield"><input type="text" name="Name" size="50" value=""></td>'.PHP_EOL;
    $outstr .= '        <td class="editsub"><input type="submit" value="Add" name="key"></td>'.PHP_EOL;
    $outstr .= '<input type="hidden" value="testdata" name="action">';
    $outstr .= '<input type="hidden" value="add" name="command">';
    $outstr .= '<input type="hidden" value="00000000-0000-0000-0000-000000000000" name="UUID">';
    $outstr .= '<input type="hidden" value="20.0" name="Inittemp"></td>';
    $outstr .= '       </tr>'.PHP_EOL;
    $outstr .= '      </table>'.PHP_EOL;
    $outstr .= '     </form>'.PHP_EOL;

    $outstr .= '    </div> <!-- atable -->'.PHP_EOL;
    $outstr .= build_footer();
    echo $outstr;
}