Ticket Deduplication with the hwmonDaemon script

.gitignore

@@ -1 +1,2 @@
-.env
+.env
+debug.log

create_ticket_api.php

@@ -41,6 +41,53 @@ if ($conn->connect_error) {
     exit;
 }
 
+// Create tickets table with hash column if not exists
+$createTableSQL = "CREATE TABLE IF NOT EXISTS tickets (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    ticket_id VARCHAR(9) NOT NULL,
+    title VARCHAR(255) NOT NULL,
+    hash VARCHAR(64) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE KEY unique_hash (hash)
+)";
+
+$conn->query($createTableSQL);
+
+// Generate hash from stable components
+function generateTicketHash($data) {
+    $stableComponents = [
+        'title' => $data['title'],
+        // Extract metadata tags from title
+        'tags' => array_filter(
+            explode(']', str_replace(['[', ']'], '', $data['title'])),
+            'strlen'
+        )
+    ];
+    
+    // Sort components for consistent hashing
+    sort($stableComponents['tags']);
+    
+    return hash('sha256', json_encode($stableComponents, JSON_UNESCAPED_SLASHES));
+}
+
+// Check for duplicate tickets
+$ticketHash = generateTicketHash($data);
+$checkDuplicateSQL = "SELECT ticket_id FROM tickets WHERE hash = ? AND created_at > DATE_SUB(NOW(), INTERVAL 24 HOUR)";
+$checkStmt = $conn->prepare($checkDuplicateSQL);
+$checkStmt->bind_param("s", $ticketHash);
+$checkStmt->execute();
+$result = $checkStmt->get_result();
+
+if ($result->num_rows > 0) {
+    $existingTicket = $result->fetch_assoc();
+    echo json_encode([
+        'success' => false,
+        'error' => 'Duplicate ticket',
+        'existing_ticket_id' => $existingTicket['ticket_id']
+    ]);
+    exit;
+}
+
 // Force JSON content type for all incoming requests
 header('Content-Type: application/json');
 
@@ -57,8 +104,8 @@ if (!$data) {
 $ticket_id = sprintf('%09d', mt_rand(1, 999999999));
 
 // Prepare insert query
-$sql = "INSERT INTO tickets (ticket_id, title, description, status, priority, category, type) 
-        VALUES (?, ?, ?, ?, ?, ?, ?)";
+$sql = "INSERT INTO tickets (ticket_id, title, description, status, priority, category, type, hash) 
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?)";
 
 $stmt = $conn->prepare($sql);
 // First, store all values in variables
@@ -71,14 +118,15 @@ $type = $data['type'] ?? 'Issue';
 
 // Then use the variables in bind_param
 $stmt->bind_param(
-    "sssssss",
+    "ssssssss",
     $ticket_id,
     $title,
     $description,
     $status,
     $priority,
     $category,
-    $type
+    $type,
+    $ticketHash
 );
 
 if ($stmt->execute()) {