Finished Settings page

WorkTime.Database/DatabaseContext.cs

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+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using WorkTime.Models;
+
+namespace WorkTime.Database;
+
+internal sealed class DatabaseContext(DbContextOptions<DatabaseContext> options) : DbContext(options) {
+
+    public DbSet<TimeEntry> Entries { get; set; }
+    
+}
+
+internal sealed class DbMigrationService(IServiceProvider provider) : IHostedService {
+    public async Task StartAsync(CancellationToken cancellationToken) {
+        await using var scope = provider.CreateAsyncScope();
+        var context = scope.ServiceProvider.GetRequiredService<DatabaseContext>();
+
+        await context.Database.MigrateAsync(cancellationToken);
+    }
+
+    public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+}

WorkTime.Database/Migrations/20251112121330_Initial.Designer.cs

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+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using WorkTime.Database;
+
+#nullable disable
+
+namespace WorkTime.Database.Migrations
+{
+    [DbContext(typeof(DatabaseContext))]
+    [Migration("20251112121330_Initial")]
+    partial class Initial
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.0");
+
+            modelBuilder.Entity("WorkTime.Models.TimeEntry", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Type")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Entries");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WorkTime.Database/Migrations/20251112121330_Initial.cs

@@ -0,0 +1,35 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace WorkTime.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class Initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Entries",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "TEXT", nullable: false),
+                    Type = table.Column<int>(type: "INTEGER", nullable: false),
+                    Timestamp = table.Column<DateTime>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Entries", x => x.Id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Entries");
+        }
+    }
+}

WorkTime.Database/Migrations/DatabaseContextModelSnapshot.cs

@@ -0,0 +1,39 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using WorkTime.Database;
+
+#nullable disable
+
+namespace WorkTime.Database.Migrations
+{
+    [DbContext(typeof(DatabaseContext))]
+    partial class DatabaseContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.0");
+
+            modelBuilder.Entity("WorkTime.Models.TimeEntry", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Type")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Entries");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WorkTime.Database/Repositories/SettingsRepository.cs

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+using System.Text.Json;
+using System.Text.Json.Serialization;
+using WorkTime.Models;
+using WorkTime.Models.Repositories;
+
+namespace WorkTime.Database.Repositories;
+
+internal sealed class SettingsRepository(string filePath) : ISettingsRepository {
+    public async Task<Settings> LoadSettings() {
+        if (!File.Exists(filePath))
+            return new Settings();
+
+        var raw = await File.ReadAllTextAsync(filePath);
+        return JsonSerializer.Deserialize<Settings>(raw, SettingsSerializer.Default.Settings) ?? new Settings();
+    }
+    
+    public async Task SaveSettings(Settings settings) {
+        if (File.Exists(filePath))
+            File.Delete(filePath);
+
+        var json = JsonSerializer.Serialize(settings, SettingsSerializer.Default.Settings);
+        await File.WriteAllTextAsync(filePath, json);
+    }
+}
+
+[JsonSourceGenerationOptions(WriteIndented = true)]
+[JsonSerializable(typeof(Settings))]
+internal partial class SettingsSerializer : JsonSerializerContext {}

WorkTime.Database/Repositories/TimeEntryRepository.cs

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+using WorkTime.Models;
+using WorkTime.Models.Repositories;
+
+namespace WorkTime.Database.Repositories;
+
+internal sealed class TimeEntryRepository : ITimeEntryRepository {
+    public Task<IEnumerable<TimeEntry>> GetTimeEntries() {
+        throw new NotImplementedException();
+    }
+    
+    public Task<IEnumerable<TimeEntry>> GetTimeEntries(DateOnly date) {
+        throw new NotImplementedException();
+    }
+    
+    public Task AddTimeEntry(TimeEntry entry) {
+        throw new NotImplementedException();
+    }
+    
+    public Task DeleteTimeEntry(Guid id) {
+        throw new NotImplementedException();
+    }
+}

WorkTime.Database/ServiceCollectionExtensions.cs

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+using Microsoft.Extensions.DependencyInjection;
+using WorkTime.Database.Repositories;
+using WorkTime.Models.Repositories;
+
+namespace WorkTime.Database;
+
+public static class ServiceCollectionExtensions {
+
+    public static void AddDatabase(this IServiceCollection services, string basePath) {
+        services.AddSqlite<DatabaseContext>($"Filename={Path.Combine(basePath, "data.db")}");
+        services.AddHostedService<DbMigrationService>();
+        services.AddTransient<ITimeEntryRepository, TimeEntryRepository>();
+        services.AddTransient<ISettingsRepository, SettingsRepository>(_ => new SettingsRepository(Path.Combine(basePath, "settings.json")));
+    }
+    
+}

WorkTime.Database/WorkTime.Database.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net10.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\WorkTime.Models\WorkTime.Models.csproj" />
+    </ItemGroup>
+
+</Project>