add application layer and add user basic actions

src/FluentCMS.Application/Extensions.cs

@@ -0,0 +1,14 @@
+using FluentCMS.Repository;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace FluentCMS.Application;
+public static class Extensions
+{
+    public static FluentCMSBuilder AddApplication(this FluentCMSBuilder fcBuilder)
+    {
+        // register mediatR
+        fcBuilder.Services.AddMediatR(c => c.RegisterServicesFromAssembly(typeof(Extensions).Assembly));
+
+        return fcBuilder;
+    }
+}

src/FluentCMS.Application/FluentCMS.Application.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MediatR" Version="12.1.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FluentCMS.Domain\FluentCMS.Domain.csproj" />
+  </ItemGroup>
+
+</Project>

src/FluentCMS.Application/Users/CreateUserCommand.cs

@@ -0,0 +1,9 @@
+using MediatR;
+
+namespace FluentCMS.Application.Users;
+public class CreateUserCommand : IRequest<Guid>
+{
+    public string Name { get; set; } = string.Empty;
+    public string Username { get; set; } = string.Empty;
+    public string Password { get; set; } = string.Empty;
+}

src/FluentCMS.Application/Users/GetUserByIdQuery.cs

@@ -0,0 +1,8 @@
+using FluentCMS.Entities;
+using MediatR;
+
+namespace FluentCMS.Application.Users;
+public class GetUserByIdQuery : IRequest<User?>
+{
+    public Guid Id { get; set; }
+}

src/FluentCMS.Application/Users/GetUsersQuery.cs

@@ -0,0 +1,7 @@
+using FluentCMS.Entities;
+using MediatR;
+
+namespace FluentCMS.Application.Users;
+public class GetUsersQuery : IRequest<IEnumerable<User>>
+{
+}

src/FluentCMS.Application/Users/UserHandlers.cs

@@ -0,0 +1,42 @@
+using FluentCMS.Entities;
+using FluentCMS.Services;
+using MediatR;
+
+namespace FluentCMS.Application.Users;
+internal class UserHandlers :
+    IRequestHandler<GetUsersQuery, IEnumerable<User>>,
+    IRequestHandler<GetUserByIdQuery, User?>,
+    IRequestHandler<CreateUserCommand, Guid>
+{
+    private readonly UserService _userService;
+
+    public UserHandlers(UserService userService)
+    {
+        _userService = userService;
+    }
+
+    public async Task<IEnumerable<User>> Handle(GetUsersQuery request, CancellationToken cancellationToken)
+    {
+        var users = await _userService.GetAll();
+        return users;
+    }
+
+    public async Task<User?> Handle(GetUserByIdQuery request, CancellationToken cancellationToken)
+    {
+        var user = await _userService.GetById(request.Id);
+        return user;
+    }
+
+    public async Task<Guid> Handle(CreateUserCommand request, CancellationToken cancellationToken)
+    {
+        var user = new User
+        {
+            Id = Guid.NewGuid(),
+            Name = request.Name,
+            Username = request.Username,
+            Password = request.Password,
+        };
+        await _userService.Create(user, cancellationToken);
+        return user.Id;
+    }
+}

src/FluentCMS.Shared/Controllers/UsersController.cs

@@ -0,0 +1,37 @@
+using FluentCMS.Application.Users;
+using FluentCMS.Entities;
+using Microsoft.AspNetCore.Mvc;
+using MediatR;
+
+namespace FluentCMS.Web.Controllers;
+
+public class UsersController : BaseController
+{
+    private readonly IMediator _mediator;
+
+    public UsersController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    [HttpGet]
+    public async Task<ActionResult<IEnumerable<User>>> GetUsers()
+    {
+        var data = await _mediator.Send(new GetUsersQuery());
+        return Ok(data);
+    }
+
+    [HttpGet("{id}")]
+    public async Task<ActionResult<User?>> GetUserById([FromRoute] Guid id)
+    {
+        var data = await _mediator.Send(new GetUserByIdQuery { Id = id });
+        return Ok(data);
+    }
+
+    [HttpPost]
+    public async Task<ActionResult<Guid>> CreateUser(CreateUserCommand request)
+    {
+        var result = await _mediator.Send(request);
+        return Ok(result);
+    }
+}

src/FluentCMS.Shared/FluentCMS.Shared.csproj

@@ -11,6 +11,7 @@
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\FluentCMS.Application\FluentCMS.Application.csproj" />
     <ProjectReference Include="..\FluentCMS.Domain\FluentCMS.Domain.csproj" />
   </ItemGroup>
 </Project>

src/FluentCMS.Web.UI/Config/appsettings.Development.json

@@ -0,0 +1,6 @@
+{
+  "ConnectionStrings": {
+    "LiteDbFile": "bin/Debug/net8.0/.db/database.litedb"
+  },
+  "AllowedHosts": "*"
+}

src/FluentCMS.Web.UI/Program.cs

@@ -1,4 +1,5 @@
 using FluentCMS;
+using FluentCMS.Application;
 using FluentCMS.Repository.LiteDb;
 using FluentCMS.Web.UI;
 
@@ -10,8 +11,14 @@
 
 // add FluentCms core
 services.AddFluentCMSCore()
-    .AddLiteDbRepository(b => b.SetFilePath(
-        builder.Configuration.GetConnectionString("LiteDbFile") ?? throw new Exception("LiteDb file not defined.")));
+    .AddApplication()
+    .AddLiteDbRepository(b =>
+    {
+        var liteDbFilePath = builder.Configuration.GetConnectionString("LiteDbFile")
+            ?? throw new Exception("LiteDb file not defined.");
+        Directory.CreateDirectory(Path.GetDirectoryName(liteDbFilePath)!);
+        b.SetFilePath(liteDbFilePath);
+    });
 
 // Add services to the container.
 services.AddRazorComponents()
@@ -38,12 +45,16 @@
 
 
 var app = builder.Build();
-
-app.UseExceptionHandler("/Error", createScopeForErrors: true);
-
-//app.UseHsts();
-
-app.UseHttpsRedirection();
+if (app.Environment.IsDevelopment())
+{
+    app.UseDeveloperExceptionPage();
+}
+else
+{
+    app.UseHsts();
+    app.UseHttpsRedirection();
+    app.UseExceptionHandler("/Error", createScopeForErrors: true);
+}
 
 app.UseStaticFiles();
 

src/FluentCMS.sln

@@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FluentCMS.Shared", "FluentC
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FluentCMS.Web.UI", "FluentCMS.Web.UI\FluentCMS.Web.UI.csproj", "{144A959D-F8C0-4478-B8DA-57A2959B8C7D}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FluentCMS.Application", "FluentCMS.Application\FluentCMS.Application.csproj", "{675100EE-B527-4941-9B5E-CCE683E1EF34}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +41,10 @@ Global
 		{144A959D-F8C0-4478-B8DA-57A2959B8C7D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{144A959D-F8C0-4478-B8DA-57A2959B8C7D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{144A959D-F8C0-4478-B8DA-57A2959B8C7D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{675100EE-B527-4941-9B5E-CCE683E1EF34}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{675100EE-B527-4941-9B5E-CCE683E1EF34}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{675100EE-B527-4941-9B5E-CCE683E1EF34}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{675100EE-B527-4941-9B5E-CCE683E1EF34}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE