Initial commit: FieldLogger MAUI app with Maglink BLE support

Added Maglink RTK GNSS receiver integration with correct BLE UUIDs and device name filtering (ML-* prefix). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2026-07-06 13:46:50 -05:00
commit b602b762c9
79 changed files with 5807 additions and 0 deletions
--- a/FieldLogger/Services/SettingsService.cs
+++ b/FieldLogger/Services/SettingsService.cs
@@ -0,0 +1,58 @@
+using FieldLogger.Models;
+
+namespace FieldLogger.Services;
+
+/// <summary>Persisted app settings: paired device identities, active job, map key.</summary>
+public sealed class SettingsService
+{
+    private const string LocatorIdKey = "device.locator.id";
+    private const string LocatorNameKey = "device.locator.name";
+    private const string RtkIdKey = "device.rtk.id";
+    private const string RtkNameKey = "device.rtk.name";
+    private const string ActiveJobKey = "job.active.id";
+    private const string MapsApiKeyKey = "maps.apikey";
+
+    public Guid? GetSavedDeviceId(DeviceKind kind)
+    {
+        var raw = Preferences.Default.Get(IdKey(kind), string.Empty);
+        return Guid.TryParse(raw, out var id) ? id : null;
+    }
+
+    public string? GetSavedDeviceName(DeviceKind kind)
+    {
+        var name = Preferences.Default.Get(NameKey(kind), string.Empty);
+        return string.IsNullOrEmpty(name) ? null : name;
+    }
+
+    public void SaveDevice(DeviceKind kind, Guid id, string name)
+    {
+        Preferences.Default.Set(IdKey(kind), id.ToString());
+        Preferences.Default.Set(NameKey(kind), name);
+    }
+
+    public void ClearDevice(DeviceKind kind)
+    {
+        Preferences.Default.Remove(IdKey(kind));
+        Preferences.Default.Remove(NameKey(kind));
+    }
+
+    public int? ActiveJobId
+    {
+        get
+        {
+            var id = Preferences.Default.Get(ActiveJobKey, 0);
+            return id > 0 ? id : null;
+        }
+        set => Preferences.Default.Set(ActiveJobKey, value ?? 0);
+    }
+
+    /// <summary>Google Maps JavaScript API key used by the Windows WebView map.</summary>
+    public string GoogleMapsApiKey
+    {
+        get => Preferences.Default.Get(MapsApiKeyKey, string.Empty);
+        set => Preferences.Default.Set(MapsApiKeyKey, value);
+    }
+
+    private static string IdKey(DeviceKind kind) => kind == DeviceKind.Locator ? LocatorIdKey : RtkIdKey;
+    private static string NameKey(DeviceKind kind) => kind == DeviceKind.Locator ? LocatorNameKey : RtkNameKey;
+}