initial commit

ViewModels/Dialogs/KlineErrorsViewModel.cs

@@ -0,0 +1,137 @@
+using System.Threading.Tasks;
+using System.Windows;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using HC_APTBS.Services;
+
+namespace HC_APTBS.ViewModels.Dialogs
+{
+    /// <summary>
+    /// ViewModel for the WKlineErrors dialog.
+    ///
+    /// <para>
+    /// Displays the raw DTC (Diagnostic Trouble Code) text returned by the VP44 ECU
+    /// over K-Line and provides commands to read or clear fault codes.
+    /// </para>
+    /// </summary>
+    public sealed partial class KlineErrorsViewModel : ObservableObject
+    {
+        // ── Services ──────────────────────────────────────────────────────────────
+
+        private readonly IKwpService _kwp;
+        private readonly IConfigurationService _config;
+
+        // ── Constructor ───────────────────────────────────────────────────────────
+
+        /// <summary>Initialises the ViewModel and shows the initially known error text.</summary>
+        public KlineErrorsViewModel(
+            IKwpService kwpService,
+            IConfigurationService configService,
+            string initialErrors = "")
+        {
+            _kwp    = kwpService;
+            _config = configService;
+            ErrorText = initialErrors;
+
+            _kwp.ProgressChanged += OnProgress;
+        }
+
+        // ── Properties ────────────────────────────────────────────────────────────
+
+        /// <summary>Raw DTC string returned by the ECU, shown in the text box.</summary>
+        [ObservableProperty] private string _errorText = string.Empty;
+
+        /// <summary>True while a K-Line read or clear operation is in progress.</summary>
+        [ObservableProperty]
+        [NotifyCanExecuteChangedFor(nameof(ReadErrorsCommand))]
+        [NotifyCanExecuteChangedFor(nameof(ClearErrorsCommand))]
+        private bool _isBusy;
+
+        /// <summary>Progress percentage (0–100) for the current K-Line operation.</summary>
+        [ObservableProperty] private int _progressPercent;
+
+        /// <summary>Verbose status message for the current K-Line operation.</summary>
+        [ObservableProperty] private string _progressMessage = string.Empty;
+
+        // ── Commands ──────────────────────────────────────────────────────────────
+
+        /// <summary>Reads the current fault codes from the ECU.</summary>
+        [RelayCommand(CanExecute = nameof(CanOperate))]
+        private async Task ReadErrorsAsync()
+        {
+            string? port = GetPort();
+            if (port == null) return;
+
+            IsBusy = true;
+            try
+            {
+                ErrorText = await _kwp.ReadFaultCodesAsync(port);
+            }
+            finally
+            {
+                IsBusy = false;
+                ProgressPercent = 0;
+                ProgressMessage = string.Empty;
+            }
+        }
+
+        /// <summary>Clears fault codes on the ECU, then reads back the updated list.</summary>
+        [RelayCommand(CanExecute = nameof(CanOperate))]
+        private async Task ClearErrorsAsync()
+        {
+            string? port = GetPort();
+            if (port == null) return;
+
+            IsBusy = true;
+            try
+            {
+                ErrorText = await _kwp.ClearFaultCodesAsync(port);
+                // Re-read after clearing to confirm
+                ErrorText = await _kwp.ReadFaultCodesAsync(port);
+            }
+            finally
+            {
+                IsBusy = false;
+                ProgressPercent = 0;
+                ProgressMessage = string.Empty;
+            }
+        }
+
+        /// <summary>Closes the dialog.</summary>
+        [RelayCommand]
+        private void Close()
+        {
+            _kwp.ProgressChanged -= OnProgress;
+            RequestClose?.Invoke();
+        }
+
+        // ── Events ────────────────────────────────────────────────────────────────
+
+        /// <summary>Raised when the dialog should close itself.</summary>
+        public event System.Action? RequestClose;
+
+        // ── Helpers ───────────────────────────────────────────────────────────────
+
+        private bool CanOperate() => !IsBusy;
+
+        private string? GetPort()
+        {
+            string? port = _kwp.DetectKLinePort();
+            if (!string.IsNullOrEmpty(port)) return port;
+
+            MessageBox.Show(
+                "K-Line device not found. Check that the FTDI adapter is connected.",
+                "K-Line Error", MessageBoxButton.OK, MessageBoxImage.Warning);
+            return null;
+        }
+
+        private void OnProgress(int pct, string msg)
+        {
+            Application.Current.Dispatcher.Invoke(() =>
+            {
+                ProgressPercent = pct;
+                ProgressMessage = msg;
+            });
+        }
+    }
+}

ViewModels/Dialogs/ProgressViewModel.cs

@@ -0,0 +1,36 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace HC_APTBS.ViewModels.Dialogs
+{
+    /// <summary>
+    /// ViewModel for the WProgressDisplay dialog.
+    ///
+    /// <para>
+    /// Shows a progress bar (0–100) and a verbose text line during long-running
+    /// K-Line operations.  The dialog is closed by the parent when the operation
+    /// completes; this ViewModel simply exposes observable properties for binding.
+    /// </para>
+    /// </summary>
+    public sealed partial class ProgressViewModel : ObservableObject
+    {
+        /// <summary>Title text shown in the dialog's title bar.</summary>
+        [ObservableProperty] private string _title = string.Empty;
+
+        /// <summary>Current progress value (0–100).</summary>
+        [ObservableProperty] private int _progressPercent;
+
+        /// <summary>Verbose status message describing the current step.</summary>
+        [ObservableProperty] private string _verboseMessage = string.Empty;
+
+        /// <summary>
+        /// Updates both <see cref="ProgressPercent"/> and <see cref="VerboseMessage"/>
+        /// in a single call.  Thread-safe: may be called from any thread because
+        /// the consumer is expected to marshal to the UI thread before calling.
+        /// </summary>
+        public void Update(int percent, string message)
+        {
+            ProgressPercent = percent;
+            VerboseMessage  = message;
+        }
+    }
+}

ViewModels/Dialogs/ReportViewModel.cs

@@ -0,0 +1,158 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using HC_APTBS.Services;
+
+namespace HC_APTBS.ViewModels.Dialogs
+{
+    /// <summary>
+    /// ViewModel for the WReport dialog.
+    ///
+    /// <para>
+    /// Lets the operator fill in client and company information before generating
+    /// the PDF report.  The client list is backed by the
+    /// <see cref="IConfigurationService"/> and persisted when the dialog is accepted.
+    /// </para>
+    /// </summary>
+    public sealed partial class ReportViewModel : ObservableObject
+    {
+        // ── Services ──────────────────────────────────────────────────────────────
+
+        private readonly IConfigurationService _config;
+
+        // ── Constructor ───────────────────────────────────────────────────────────
+
+        /// <summary>Initialises and populates the dialog from configuration.</summary>
+        public ReportViewModel(IConfigurationService configService)
+        {
+            _config = configService;
+
+            CompanyName = _config.Settings.CompanyName;
+            CompanyInfo = _config.Settings.CompanyInfo;
+
+            foreach (var name in _config.Clients.Keys)
+                ClientNames.Add(name);
+        }
+
+        // ── Company ───────────────────────────────────────────────────────────────
+
+        /// <summary>Company name shown in the report header.</summary>
+        [ObservableProperty] private string _companyName = string.Empty;
+
+        /// <summary>Company address / contact info shown in the report header.</summary>
+        [ObservableProperty] private string _companyInfo = string.Empty;
+
+        // ── Client ────────────────────────────────────────────────────────────────
+
+        /// <summary>List of known client names for the autocomplete combo box.</summary>
+        public ObservableCollection<string> ClientNames { get; } = new();
+
+        /// <summary>Currently selected or typed client name.</summary>
+        [ObservableProperty]
+        [NotifyCanExecuteChangedFor(nameof(SaveClientCommand))]
+        [NotifyCanExecuteChangedFor(nameof(DeleteClientCommand))]
+        private string _selectedClientName = string.Empty;
+
+        /// <summary>Free-text notes for the selected client.</summary>
+        [ObservableProperty] private string _clientInfo = string.Empty;
+
+        /// <summary>Operator name.</summary>
+        [ObservableProperty] private string _operatorName = string.Empty;
+
+        /// <summary>Free-text observations appended to the report.</summary>
+        [ObservableProperty] private string _observations = string.Empty;
+
+        // ── Dialog result ─────────────────────────────────────────────────────────
+
+        /// <summary>True after the user clicks Accept; false if they cancel.</summary>
+        public bool Accepted { get; private set; }
+
+        // ── Commands ──────────────────────────────────────────────────────────────
+
+        /// <summary>Saves the current client entry, closes the dialog with Accepted=true.</summary>
+        [RelayCommand]
+        private void Accept()
+        {
+            SaveCurrentClient();
+
+            _config.Settings.CompanyName = CompanyName;
+            _config.Settings.CompanyInfo = CompanyInfo;
+            _config.SaveClients();
+            _config.SaveSettings();
+
+            Accepted = true;
+            RequestClose?.Invoke();
+        }
+
+        /// <summary>Closes the dialog without saving.</summary>
+        [RelayCommand]
+        private void Cancel()
+        {
+            Accepted = false;
+            RequestClose?.Invoke();
+        }
+
+        /// <summary>Persists the current client entry and refreshes the client list.</summary>
+        [RelayCommand(CanExecute = nameof(HasClientName))]
+        private void SaveClient()
+        {
+            SaveCurrentClient();
+            RefreshClientList();
+        }
+
+        /// <summary>Deletes the currently selected client from the list.</summary>
+        [RelayCommand(CanExecute = nameof(HasClientName))]
+        private void DeleteClient()
+        {
+            string name = SelectedClientName.Trim();
+            if (string.IsNullOrEmpty(name)) return;
+
+            if (_config.Clients.ContainsKey(name))
+                _config.Clients.Remove(name);
+
+            SelectedClientName = string.Empty;
+            ClientInfo         = string.Empty;
+            RefreshClientList();
+        }
+
+        /// <summary>
+        /// Called when the user picks a client name from the combo box.
+        /// Loads the associated info text.
+        /// </summary>
+        public void SelectClient(string name)
+        {
+            SelectedClientName = name ?? string.Empty;
+            if (!string.IsNullOrEmpty(name) && _config.Clients.TryGetValue(name, out var info))
+                ClientInfo = info;
+        }
+
+        // ── Events ────────────────────────────────────────────────────────────────
+
+        /// <summary>Raised when the dialog should close itself.</summary>
+        public event System.Action? RequestClose;
+
+        // ── Helpers ───────────────────────────────────────────────────────────────
+
+        private bool HasClientName() => !string.IsNullOrWhiteSpace(SelectedClientName);
+
+        private void SaveCurrentClient()
+        {
+            string name = SelectedClientName.Trim();
+            if (string.IsNullOrEmpty(name)) return;
+
+            if (_config.Clients.ContainsKey(name))
+                _config.Clients[name] = ClientInfo;
+            else
+                _config.Clients.Add(name, ClientInfo);
+        }
+
+        private void RefreshClientList()
+        {
+            ClientNames.Clear();
+            foreach (var name in _config.Clients.Keys)
+                ClientNames.Add(name);
+        }
+    }
+}