Fix config overwrite on login/navigation; use production DB for meal schedule CRUD, remove default SiteId normalization, add config load/save logging, and support legacy SiteId format.

Services/ConfigService.cs

@@ -92,44 +92,16 @@ public class ConfigService : IConfigService
 
     public string GetSiteId()
     {
-        // Normalize to a 2-digit string (e.g. "02", "07", "12").
+        // Return the configured SiteId as-is. No normalization.
-        // Accepts legacy values like "SITE : 2" or "2" and converts them.
+        // Returns empty string if not configured.
-        var raw = _config.SiteId;
+       return _config.SiteId ?? string.Empty;
-        if (string.IsNullOrWhiteSpace(raw))
-            return "01";
-
-        var digits = new string(raw.Where(char.IsDigit).ToArray());
-        if (string.IsNullOrWhiteSpace(digits))
-            return "01";
-
-        if (!int.TryParse(digits, out var numeric))
-            return "01";
-
-        return Math.Clamp(numeric, 0, 99).ToString("D2");
     }
 
    public void SetSiteId(string siteId)
     {
-        // Store the normalized 2-digit site code.
+        // Store the SiteId exactly as provided. No automatic normalization.
-        var normalized = siteId;
+        // Caller is responsible for formatting.
-        if (string.IsNullOrWhiteSpace(normalized))
+        _config.SiteId = siteId ?? string.Empty;
-        {
-            normalized = "01";
-        }
-        else
-        {
-            var digits = new string(normalized.Where(char.IsDigit).ToArray());
-            if (string.IsNullOrWhiteSpace(digits) || !int.TryParse(digits, out var numeric))
-            {
-                normalized = "01";
-            }
-            else
-            {
-                normalized = Math.Clamp(numeric, 0, 99).ToString("D2");
-            }
-        }
-
-        _config.SiteId = normalized;
         SaveConfig();
     }
 
@@ -248,6 +220,7 @@ public class ConfigService : IConfigService
         {
            if (!File.Exists(_configPath))
             {
+                System.Diagnostics.Debug.WriteLine("[ConfigService] Config file not found. Creating with defaults.");
                var defaults = new AppConfig();
                 SaveConfig(defaults);
                return defaults;
@@ -257,10 +230,17 @@ public class ConfigService : IConfigService
            var config = JsonSerializer.Deserialize<AppConfig>(json);
            config ??= new AppConfig();
             MigrateScanIntervalFromSecondsIfNeeded(config);
+            
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] Config loaded from {_configPath}");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] SiteId: '{config.SiteId}' (empty=not configured)");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] MySqlConnectionString: {(string.IsNullOrWhiteSpace(config.MySqlConnectionString) ? "NOT CONFIGURED" : MaskConnectionString(config.MySqlConnectionString))}");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] HrmsLookupConnectionString: {(string.IsNullOrWhiteSpace(config.HrmsLookupConnectionString) ? "NOT CONFIGURED" : MaskConnectionString(config.HrmsLookupConnectionString))}");
+            
            return config;
         }
-        catch
+        catch (Exception ex)
         {
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] ERROR loading config: {ex.Message}");
            return new AppConfig();
         }
     }
@@ -308,18 +288,49 @@ public class ConfigService : IConfigService
     {
         try
         {
+            // Log what's being saved
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] Saving config...");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService]   SiteId: '{_config.SiteId}'");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService]   MySqlConnectionString: {(string.IsNullOrWhiteSpace(_config.MySqlConnectionString) ? "NOT CONFIGURED" : MaskConnectionString(_config.MySqlConnectionString))}");
+            System.Diagnostics.Debug.WriteLine($"[ConfigService]   HrmsLookupConnectionString: {(string.IsNullOrWhiteSpace(_config.HrmsLookupConnectionString) ? "NOT CONFIGURED" : MaskConnectionString(_config.HrmsLookupConnectionString))}");
+            
            var json = JsonSerializer.Serialize(config, new JsonSerializerOptions
             {
                 WriteIndented = true
             });
             File.WriteAllText(_configPath, json);
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] Config saved to {_configPath}");
         }
-        catch
+        catch (Exception ex)
         {
-            // Ignore write failures (e.g., read-only location).
+            System.Diagnostics.Debug.WriteLine($"[ConfigService] ERROR saving config: {ex.Message}");
         }
     }
 
+    /// <summary>
+    /// Masks sensitive connection string values for logging.
+    /// Shows server and database but hides password.
+    /// </summary>
+    private static string MaskConnectionString(string connectionString)
+    {
+       if (string.IsNullOrWhiteSpace(connectionString))
+           return string.Empty;
+
+        // Simple masking: show everything before 'Password=' and mask the rest
+       var passwordIndex = connectionString.IndexOf("Password=", StringComparison.OrdinalIgnoreCase);
+       if (passwordIndex >= 0)
+        {
+           var semicolonAfterPassword = connectionString.IndexOf(';', passwordIndex);
+           if (semicolonAfterPassword >= 0)
+            {
+               return connectionString.Substring(0, passwordIndex) + "Password=***" + connectionString.Substring(semicolonAfterPassword);
+            }
+           return connectionString.Substring(0, passwordIndex) + "Password=***";
+        }
+
+       return connectionString; // No password found, return as-is
+    }
+
     private sealed class AppConfig
     {
         public string SyncApiEndpoint { get; set; } = "https://api.example.com/uind/sync";
@@ -328,10 +339,10 @@ public class ConfigService : IConfigService
         public int ScanTimeoutSeconds { get; set; } = 0;
         public int ScanIntervalDays { get; set; } = 0;
         public int ScanIntervalHours { get; set; } = 0;
-        public int ScanIntervalMinutes { get; set; } = 1;
+        public int ScanIntervalMinutes { get; set; } = 0;
-        public int ScanIntervalSeconds { get; set; } = 0;
+        public int ScanIntervalSeconds { get; set; } = 2;
         public string AdminCardId { get; set; } = "ADMIN";
-        public string SiteId { get; set; } = "SITE : 1";
+        public string SiteId { get; set; } = string.Empty; // No default - must be explicitly configured
         public string DeviceId { get; set; } = string.Empty;
 
         // Admin credential persistence (optional).
@@ -343,6 +354,6 @@ public class ConfigService : IConfigService
         public string MySqlConnectionString { get; set; } = string.Empty;
 
         // Local HRMS MySQL for employee lookup by RFID. Separate from production sync.
-        public string HrmsLookupConnectionString { get; set; } = "Server=192.168.90.147;Port=3306;Database=hrms;User Id=utopia;Password=Utopia01;SslMode=None;";
+        public string HrmsLookupConnectionString { get; set; } = string.Empty;
     }
 }

Services/ProductionMealScheduleService.cs

@@ -5,7 +5,7 @@ namespace UtopiaCanteenSystem.Services;
 
 /// <summary>
 /// Meal schedule CRUD against production HRMS MySQL table hrms.meal_schedule.
-/// Uses IConfigService.GetHrmsLookupConnectionString() (same DB as employee lookup).
+/// Uses IConfigService.GetMySqlConnectionString() (production database connection).
 /// Schema: id (bigint), meal_name (varchar), start_time (time), end_time (time), created_at, updated_at, location_site_id (int).
 /// No is_active column; all rows are treated as active.
 /// </summary>
@@ -22,7 +22,7 @@ public class ProductionMealScheduleService : IMealScheduleService
     /// <inheritdoc />
     public IReadOnlyList<MealSchedule> GetActiveSchedulesForSite(string siteId)
     {
-        var connStr = _configService.GetHrmsLookupConnectionString();
+        var connStr = _configService.GetMySqlConnectionString();
         if (string.IsNullOrWhiteSpace(connStr))
             return Array.Empty<MealSchedule>();
 
@@ -49,7 +49,7 @@ public class ProductionMealScheduleService : IMealScheduleService
     /// <inheritdoc />
     public async Task<IReadOnlyList<MealSchedule>> GetAllSchedulesAsync(CancellationToken cancellationToken = default)
     {
-        var connStr = _configService.GetHrmsLookupConnectionString();
+        var connStr = _configService.GetMySqlConnectionString();
         if (string.IsNullOrWhiteSpace(connStr))
             return Array.Empty<MealSchedule>();
 
@@ -67,9 +67,9 @@ public class ProductionMealScheduleService : IMealScheduleService
     /// <inheritdoc />
     public async Task<long> CreateAsync(MealSchedule schedule, CancellationToken cancellationToken = default)
     {
-        var connStr = _configService.GetHrmsLookupConnectionString();
+        var connStr = _configService.GetMySqlConnectionString();
         if (string.IsNullOrWhiteSpace(connStr))
-            throw new InvalidOperationException("HRMS MySQL connection string not configured.");
+            throw new InvalidOperationException("Production MySQL connection string not configured.");
 
         var utc = DateTime.UtcNow;
         var mealName = (schedule.MealName ?? string.Empty).Trim();
@@ -93,9 +93,9 @@ public class ProductionMealScheduleService : IMealScheduleService
     /// <inheritdoc />
     public async Task UpdateAsync(MealSchedule schedule, CancellationToken cancellationToken = default)
     {
-        var connStr = _configService.GetHrmsLookupConnectionString();
+        var connStr = _configService.GetMySqlConnectionString();
         if (string.IsNullOrWhiteSpace(connStr))
-            throw new InvalidOperationException("HRMS MySQL connection string not configured.");
+            throw new InvalidOperationException("Production MySQL connection string not configured.");
 
         var utc = DateTime.UtcNow;
         var mealName = (schedule.MealName ?? string.Empty).Trim();
@@ -117,9 +117,9 @@ public class ProductionMealScheduleService : IMealScheduleService
     /// <inheritdoc />
     public async Task DeleteAsync(long id, CancellationToken cancellationToken = default)
     {
-        var connStr = _configService.GetHrmsLookupConnectionString();
+        var connStr = _configService.GetMySqlConnectionString();
         if (string.IsNullOrWhiteSpace(connStr))
-            throw new InvalidOperationException("HRMS MySQL connection string not configured.");
+            throw new InvalidOperationException("Production MySQL connection string not configured.");
 
         await using var conn = new MySqlConnection(connStr);
         await conn.OpenAsync(cancellationToken).ConfigureAwait(false);

ViewModels/ScannerDashboardViewModel.cs

@@ -215,14 +215,22 @@ public partial class ScannerDashboardViewModel : ObservableObject
         _clockTimer.Tick += (_, _) => CurrentTime = DateTime.Now.ToString("MM/dd/yyyy, hh:mm:ss tt");
         _clockTimer.Start();
 
-        // Load initial site from config (e.g. "SITE : 1" -> "1").
+        // Load initial site from config.
       var siteId = _configService.GetSiteId();
-        if (!string.IsNullOrWhiteSpace(siteId) && siteId.StartsWith("SITE : ", StringComparison.OrdinalIgnoreCase))
+      if (!string.IsNullOrWhiteSpace(siteId))
+        {
+            // Extract digits from legacy format "SITE : X"or use value directly if already numeric
+          if (siteId.StartsWith("SITE : ", StringComparison.OrdinalIgnoreCase))
             {
               var num = siteId.Substring("SITE : ".Length).Trim();
               if (num.Length > 0 && num.All(char.IsDigit))
                     SiteNumber = num;
             }
+            else if (siteId.All(char.IsDigit))
+            {
+                SiteNumber = siteId;
+            }
+        }
 
         RefreshScannerStatus();
         _ = RefreshDashboardAsync();

appsettings.example.json

@@ -3,13 +3,14 @@
   "ScannerConnected": false,
   "ScanIntervalDays": 0,
   "ScanIntervalHours": 0,
-  "ScanIntervalMinutes": 1,
+  "ScanIntervalMinutes": 0,
+  "ScanIntervalSeconds": 2,
   "AdminCardId": "ADMIN",
   "SiteId": "02",
   "DeviceId": "",
   "RememberAdminCredentials": false,
   "SavedAdminUsername": "",
   "SavedAdminPasswordProtected": "",
-  "MySqlConnectionString": "Server=localhost;Database=hrms;User=root;Password=CHANGE_ME;Port=3306;"
+  "MySqlConnectionString": "SERVER=utopia-industries-rr.c5qech8o9lgg.us-east-1.rds.amazonaws.com;DATABASE=hrms;UID=uind_hrms_user;PASSWORD=UINDHRMS01;"
 }