<?php
/**
 * Migration script to add updated_at column to ticket_comments table
 * Run this on the production server: php scripts/add_comment_updated_at.php
 */

require_once dirname(__DIR__) . '/config/config.php';

echo "Adding updated_at column to ticket_comments table...\n";

try {
    $conn = new mysqli(
        $GLOBALS['config']['DB_HOST'],
        $GLOBALS['config']['DB_USER'],
        $GLOBALS['config']['DB_PASS'],
        $GLOBALS['config']['DB_NAME']
    );

    if ($conn->connect_error) {
        throw new Exception("Connection failed: " . $conn->connect_error);
    }

    // Check if column already exists
    $result = $conn->query("SHOW COLUMNS FROM ticket_comments LIKE 'updated_at'");

    if ($result->num_rows > 0) {
        echo "Column 'updated_at' already exists in ticket_comments table.\n";
    } else {
        // Add the column
        $sql = "ALTER TABLE ticket_comments ADD COLUMN updated_at TIMESTAMP NULL DEFAULT NULL AFTER created_at";

        if ($conn->query($sql)) {
            echo "Successfully added 'updated_at' column to ticket_comments table.\n";
        } else {
            throw new Exception("Failed to add column: " . $conn->error);
        }
    }

    $conn->close();
    echo "Done!\n";

} catch (Exception $e) {
    echo "Error: " . $e->getMessage() . "\n";
    exit(1);
}