www-thermferm/units.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');


$sock = open_socket();
if ($sock == false) {
    load('index.php');
}

socket_write($sock, "LIST", 4096);
$answer = "";
while (1) {
    $line = socket_read($sock, 4096);
    if ($line === '')
	break;
    $answer .= $line;
}
socket_close($sock);

/*
 * $arr contains the complete reply of the LIST command.
 */
$arr = explode("\r\n", $answer);


if (isset($_GET['action'])) {
    switch ($_GET['action']) {
	case 'edit':            unit_edit();
				break;
	default:                break;
    }
} elseif (isset($_POST['action'])) {
    switch ($_POST['action']) {
	case 'testdata':	testdata();
			        break;
	default:                break;
    }
} else {
    unit_list();
}

exit;

/****************************************************************************
 *
 */

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

    if ($_POST['key'] == 'Add') {
		                
	$cmd = "ADD UNIT ".$_POST['Name'];

	$sock = open_socket();
	if ($sock != false) {
	    /*
	     * Send command and absorb the result.
	     */
	    socket_write($sock, $cmd, 4096);
	    while (1) {
		$line = socket_read($sock, 4096);
		if ($line === '')
		    break;
	    }
	    socket_close($sock);
	}
    }

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


/*
 * Unit update
 *
 * @param string $_POST['UUID'] The unit UUID
 * @param string $_POST['Name'] The unit name
 * @param string $_POST['key'] The button pressed.
 */
function unit_update() {
    /*
     * Build the update command
     */
    if ($_POST['key'] == 'Delete')
	$update_cmd = "DEL UNIT ".$_POST['UUID'];
    else
	$update_cmd = "XXXXXXX ".$_POST['UUID'].",".$_POST['Name'];

	$sock = open_socket();
	if ($sock != false) {
	    /*
	     * Send command and absorb the result.
	     */
	    socket_write($sock, $update_cmd, 4096);
	    while (1) {
		$line = socket_read($sock, 4096);
		if ($line === '')
		    break;
	    }
	    socket_close($sock);
	}

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


/*
 * Test input of a modified or new profile.
 *
 * @param string $_POST['UUID'] Unique record UUID
 * @param string $_POST['Name'] Profile name
 * @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($_POST['key']) && isset($_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') {
		    unit_add();
		    return;
		} else if ($_POST['command'] == 'update') {
		    unit_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('units.php');
		break;
    }

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

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


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

    $outstr  = build_header($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="units.php">'.PHP_EOL;
    $outstr .= '      <table class="editor">'.PHP_EOL;
    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname">UUID</td>'.PHP_EOL;
    $outstr .= '        <td class="editfield">'.$UUID.'</td>'.PHP_EOL;
    $outstr .= '       </tr>'.PHP_EOL;
    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname">Unit Name</td>'.PHP_EOL;
    $outstr .= '        <td class="editfield"><input type="text" name="Name" size="50" value="'.$Name.'"></td>'.PHP_EOL;
    $outstr .= '       </tr>'.PHP_EOL;
    $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 Unit. Fetches the record data and shows the edit screen.
 *
 * @param string $_GET['action'] Must be 'edit'.
 * @param string $_GET['UUID'] The UUID of the Unit.
 */
function unit_edit() {

    global $arr;

    if ($_GET['action'] == 'edit') {

	if (startsWith($arr[0], "212")) {
	    $j = 1;
	    while (1) {
		if (strcmp($arr[$j], ".") == 0)
		    break;
		$f = explode(",", $arr[$j]);
		if (strcmp($f[0], $_GET['UUID']) == 0) {
		    edit_screen($f[0], $f[1], 'update', 'ThermFerm - Edit Unit', '');
		    return;
		}
		$j++;
	    }
	} else {
	    load('units.php');
	}

    } else {
	load('units.php');
    }
}


/*
 * @link edit unit
 * @link add unit
 */
function unit_list() {

    global $arr;

    $outstr  = build_header('ThermFerm - Units Maintenance');
    $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: 60px;">Mode</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;
	    $outstr .= '       <td class="setup">'.$f[2].'</td>'.PHP_EOL;
	    if (strcmp($f[2], "OFF")) {
		$outstr .= '       <td class="setup">Busy</td>'.PHP_EOL;
	    } else {
		$outstr .= '       <td class="setup"><a href="units.php?action=edit&amp;UUID='.$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="units.php">'.PHP_EOL;
    $outstr .= '      <table class="editor">'.PHP_EOL;
    $outstr .= '      <tr class="trhead"><td colspan="3">Add new unit</td></tr>'.PHP_EOL;
    $outstr .= '       <tr class="editor">'.PHP_EOL;
    $outstr .= '        <td class="editname">Unit 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 .= '       </tr>'.PHP_EOL;
    $outstr .= '      </table>'.PHP_EOL;
    $outstr .= '     </form>'.PHP_EOL;
    $outstr .= '    </div> <!-- atable -->'.PHP_EOL;
    $outstr .= build_footer();
    echo $outstr;
}