270 lines
8.4 KiB
PHP
270 lines
8.4 KiB
PHP
<?php // phpcs:ignoreFile
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require __DIR__ . '/../session.php';
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if (($_SESSION['SESS_MEMBER_LEVEL'] ?? '') !== 'controls') {
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http_response_code(403);
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header('Content-Type: application/json');
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echo json_encode([
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'success' => false,
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'message' => 'Access denied.',
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]);
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exit;
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}
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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http_response_code(405);
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header('Allow: POST');
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header('Content-Type: application/json');
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echo json_encode([
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'success' => false,
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'message' => 'Only POST requests are supported.',
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]);
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exit;
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}
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$sessionToken = $_SESSION['control_settings_csrf'] ?? '';
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$headerToken = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
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if ($sessionToken === '' || $headerToken === '' || !hash_equals($sessionToken, $headerToken)) {
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http_response_code(403);
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header('Content-Type: application/json');
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echo json_encode([
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'success' => false,
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'message' => 'Security token mismatch.',
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]);
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exit;
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}
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require __DIR__ . '/../includes/control-tags.php';
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require __DIR__ . '/../includes/kepware-rest.php';
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require __DIR__ . '/../includes/control-logger.php';
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header('Content-Type: application/json');
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$payload = json_decode((string) file_get_contents('php://input'), true);
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if (!is_array($payload)) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Invalid request payload.',
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]);
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exit;
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}
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$idRaw = $payload['id'] ?? '';
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$id = is_string($idRaw) ? trim($idRaw) : (is_numeric($idRaw) ? (string) $idRaw : '');
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$hasDelta = array_key_exists('delta', $payload);
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$hasValue = array_key_exists('value', $payload);
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if ($id === '') {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'A valid tag id is required.',
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]);
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exit;
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}
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$tag = control_tag_find($id);
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if ($tag === null) {
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http_response_code(404);
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echo json_encode([
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'success' => false,
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'message' => 'Tag not configured for overrides.',
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]);
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exit;
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}
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$mode = $tag['control_mode'];
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if (!$hasDelta && !$hasValue) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Provide a delta or an explicit value to apply.',
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]);
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exit;
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}
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if ($mode === 'boolean' && $hasDelta) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Boolean tags accept explicit values only.',
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]);
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exit;
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}
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$delta = null;
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if ($hasDelta) {
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$delta = filter_var($payload['delta'], FILTER_VALIDATE_FLOAT);
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if ($delta === false || $delta === null) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Delta must be numeric.',
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]);
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exit;
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}
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}
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$valueInput = null;
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if ($hasValue) {
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$valueInput = $payload['value'];
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}
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try {
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$currentRead = kepware_read([$tag['id']]);
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$currentData = $currentRead[$tag['id']] ?? null;
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$currentValue = null;
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if ($currentData !== null && isset($currentData['value']) && is_numeric($currentData['value'])) {
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$currentValue = (float) $currentData['value'];
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}
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$targetValue = null;
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if ($mode === 'boolean') {
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if (!$hasValue) {
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throw new RuntimeException('Boolean tag updates must include a value of 0 or 1.');
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}
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$normalizedValue = null;
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if (is_bool($valueInput)) {
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$normalizedValue = $valueInput ? 1 : 0;
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} elseif (is_numeric($valueInput)) {
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$normalizedValue = (float) $valueInput >= 0.5 ? 1 : 0;
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} elseif (is_string($valueInput)) {
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$lower = strtolower(trim($valueInput));
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if (in_array($lower, ['1', 'true', 'on', 'start'], true)) {
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$normalizedValue = 1;
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} elseif (in_array($lower, ['0', 'false', 'off', 'stop'], true)) {
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$normalizedValue = 0;
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}
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}
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if ($normalizedValue === null) {
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throw new RuntimeException('Boolean value must be 0 or 1.');
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}
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$targetValue = $normalizedValue;
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} else {
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if ($hasValue) {
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$filteredValue = filter_var($valueInput, FILTER_VALIDATE_FLOAT);
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if ($filteredValue === false || $filteredValue === null) {
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throw new RuntimeException('Value must be numeric.');
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}
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$targetValue = (float) $filteredValue;
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} elseif ($delta !== null) {
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if ($currentValue === null) {
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throw new RuntimeException('Unable to apply a delta without a current value. Refresh and try again.');
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}
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$targetValue = $currentValue + $delta;
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}
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if ($targetValue === null) {
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throw new RuntimeException('No numeric value provided.');
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}
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if (isset($tag['min']) && $tag['min'] !== null) {
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$targetValue = max($targetValue, (float) $tag['min']);
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}
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if (isset($tag['max']) && $tag['max'] !== null) {
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$targetValue = min($targetValue, (float) $tag['max']);
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}
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if (isset($tag['precision']) && $tag['precision'] !== null && $tag['precision'] >= 0) {
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$targetValue = round($targetValue, (int) $tag['precision']);
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}
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}
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$writePayload = [
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[
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'id' => $tag['id'],
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'v' => $mode === 'boolean' ? (int) $targetValue : $targetValue,
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],
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];
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$writeResults = kepware_write($writePayload);
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$writeResult = $writeResults[0] ?? null;
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$writeStatus = is_array($writeResult) && isset($writeResult['s']) ? $writeResult['s'] : null;
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$writeError = is_array($writeResult) && isset($writeResult['error']) ? $writeResult['error'] : null;
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if ($writeError !== null) {
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throw new RuntimeException('Kepware write error: ' . $writeError);
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}
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if (is_string($writeStatus) && stripos($writeStatus, 'good') === false && stripos($writeStatus, 'ok') === false) {
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throw new RuntimeException('Kepware write returned status: ' . $writeStatus);
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}
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$postRead = kepware_read([$tag['id']]);
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$postData = $postRead[$tag['id']] ?? null;
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$finalValue = $postData['value'] ?? $targetValue;
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$finalNumericValue = is_numeric($finalValue) ? (float) $finalValue : null;
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$finalTimestamp = isset($postData['timestamp']) && is_string($postData['timestamp']) ? $postData['timestamp'] : null;
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$responseValue = $finalNumericValue ?? $finalValue;
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$userNameParts = array_filter([
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$_SESSION['SESS_FIRST_NAME'] ?? null,
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$_SESSION['SESS_LAST_NAME'] ?? null,
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]);
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$userName = $userNameParts !== [] ? trim(implode(' ', $userNameParts)) : ($_SESSION['SESS_MEMBER_ID'] ?? 'controls-user');
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$logEntry = [
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'tag_id' => $tag['id'],
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'tag_name' => $tag['name'],
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'mode' => $mode,
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'previous_value' => $currentValue,
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'new_value' => $responseValue,
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'requested_value' => $targetValue,
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'delta' => $mode === 'boolean'
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? (($targetValue ?? 0) - ($currentValue ?? 0))
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: (($currentValue !== null && is_numeric($targetValue)) ? ($targetValue - $currentValue) : null),
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'status' => $writeStatus ?? 'OK',
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'message' => $writeError ?? ($writeStatus ?? 'OK'),
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'username' => $userName,
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'session_id' => session_id(),
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'client_ip' => $_SERVER['REMOTE_ADDR'] ?? null,
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];
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$logResult = control_log_write($logEntry);
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if (!$logResult['success']) {
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$logMessage = $logResult['error'] ?? 'Unknown logging failure.';
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error_log('Control write log persistence failed: ' . $logMessage);
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}
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echo json_encode([
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'success' => true,
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'data' => [
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'id' => $tag['id'],
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'name' => $tag['name'],
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'value' => $responseValue,
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'control' => 1,
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'type' => $tag['type_label'],
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'control_mode' => $mode,
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'source_idnumber' => $tag['config']['source'] ?? $tag['id'],
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'timestamp' => $finalTimestamp,
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'displayTimestamp' => control_format_timestamp($finalTimestamp),
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'status' => $writeStatus ?? null,
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'units' => $tag['units'] ?? null,
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'description' => $tag['description'] ?? null,
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],
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'log' => $logResult,
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]);
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} catch (Throwable $exception) {
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error_log('Tag control update failed: ' . $exception->getMessage());
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http_response_code(500);
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echo json_encode([
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'success' => false,
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'message' => 'Failed to update tag value.',
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'details' => $exception->getMessage(),
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]);
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}
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