/**
* Builds expression html tree
*
* @param array $expressionTree output of getExpressionTree() function
* @param array $next parameter only for recursive call; should be empty array
* @param int $letterNum parameter only for recursive call; should be 0
* @param int $level parameter only for recursive call
* @param string $operand parameter only for recursive call
*
* @return bool returns true if element is found, false - otherwise
*/
function buildExpressionHtmlTree(array $expressionTree, array &$next, &$letterNum, $level = 0, $operand = null)
{
$treeList = array();
$outline = '';
end($expressionTree);
$lastKey = key($expressionTree);
foreach ($expressionTree as $key => $element) {
switch ($element['type']) {
case 'operand':
$next[$level] = $key != $lastKey;
$expr = expressionLevelDraw($next, $level);
$expr[] = SPACE;
$expr[] = italic($element['operand'] == '&' ? _('AND') : _('OR'));
$levelDetails = array('list' => $expr, 'id' => $element['id'], 'expression' => array('value' => $element['expression']));
$levelErrors = expressionHighLevelErrors($element['expression']);
if (count($levelErrors) > 0) {
$levelDetails['expression']['levelErrors'] = $levelErrors;
}
$treeList[] = $levelDetails;
list($subOutline, $subTreeList) = buildExpressionHtmlTree($element['elements'], $next, $letterNum, $level + 1, $element['operand']);
$treeList = array_merge($treeList, $subTreeList);
$outline .= $level == 0 ? $subOutline : '(' . $subOutline . ')';
if ($operand !== null && $next[$level]) {
$outline .= ' ' . $operand . ' ';
}
break;
case 'expression':
$next[$level] = $key != $lastKey;
$letter = num2letter($letterNum++);
$outline .= $letter;
if ($operand !== null && $next[$level]) {
$outline .= ' ' . $operand . ' ';
}
if (defined('NO_LINK_IN_TESTING')) {
$url = new CSpan($element['expression']);
} else {
$expressionId = 'expr_' . $element['id'];
$url = new CSpan($element['expression'], 'link');
$url->setAttribute('id', $expressionId);
$url->setAttribute('onclick', 'javascript: copy_expression("' . $expressionId . '");');
}
$expr = expressionLevelDraw($next, $level);
$expr[] = SPACE;
$expr[] = bold($letter);
$expr[] = SPACE;
$expr[] = $url;
$levelDetails = array('list' => $expr, 'id' => $element['id'], 'expression' => array('value' => $element['expression']));
$levelErrors = expressionHighLevelErrors($element['expression']);
if (count($levelErrors) > 0) {
$levelDetails['expression']['levelErrors'] = $levelErrors;
}
$treeList[] = $levelDetails;
break;
}
}
return array($outline, $treeList);
}
/**
* Builds expression html tree
*
* @param array $expressionTree output of getExpressionTree() function
* @param array $next parameter only for recursive call; should be empty array
* @param int $letterNum parameter only for recursive call; should be 0
* @param int $level parameter only for recursive call
* @param string $operator parameter only for recursive call
*
* @return array array containing the trigger expression formula as the first element and an array describing the
* expression tree as the second
*/
function buildExpressionHtmlTree(array $expressionTree, array &$next, &$letterNum, $level = 0, $operator = null)
{
$treeList = [];
$outline = '';
end($expressionTree);
$lastKey = key($expressionTree);
foreach ($expressionTree as $key => $element) {
switch ($element['type']) {
case 'operator':
$next[$level] = $key != $lastKey;
$expr = expressionLevelDraw($next, $level);
$expr[] = SPACE;
$expr[] = $element['operator'] === 'and' ? _('And') : _('Or');
$levelDetails = ['list' => $expr, 'id' => $element['id'], 'expression' => ['value' => $element['expression']]];
$levelErrors = expressionHighLevelErrors($element['expression']);
if (count($levelErrors) > 0) {
$levelDetails['expression']['levelErrors'] = $levelErrors;
}
$treeList[] = $levelDetails;
list($subOutline, $subTreeList) = buildExpressionHtmlTree($element['elements'], $next, $letterNum, $level + 1, $element['operator']);
$treeList = array_merge($treeList, $subTreeList);
$outline .= $level == 0 ? $subOutline : '(' . $subOutline . ')';
if ($operator !== null && $next[$level]) {
$outline .= ' ' . $operator . ' ';
}
break;
case 'expression':
$next[$level] = $key != $lastKey;
$letter = num2letter($letterNum++);
$outline .= $letter;
if ($operator !== null && $next[$level]) {
$outline .= ' ' . $operator . ' ';
}
if (defined('NO_LINK_IN_TESTING')) {
$url = $element['expression'];
} else {
$expressionId = 'expr_' . $element['id'];
$url = (new CSpan($element['expression']))->addClass(ZBX_STYLE_LINK_ACTION)->setId($expressionId)->onClick('javascript: copy_expression("' . $expressionId . '");');
}
$expr = expressionLevelDraw($next, $level);
$expr[] = SPACE;
$expr[] = bold($letter);
$expr[] = SPACE;
$expr[] = $url;
$levelDetails = ['list' => $expr, 'id' => $element['id'], 'expression' => ['value' => $element['expression']]];
$levelErrors = expressionHighLevelErrors($element['expression']);
if (count($levelErrors) > 0) {
$levelDetails['expression']['levelErrors'] = $levelErrors;
}
$treeList[] = $levelDetails;
break;
}
}
return [$outline, $treeList];
}
