Merge remote-tracking branch 'origin/master' into feature/oauth

# Conflicts:
#	src/Application/Common/Interfaces/IIdentityService.cs
#	src/Application/Users/Commands/CreateUser.cs
#	src/Infrastructure/Identity/IdentityService.cs
#	src/Infrastructure/Services/UserService.cs
#	src/Web/Program.cs

src/Infrastructure/Identity/IdentityService.cs

@@ -1,7 +1,9 @@
 using Google.Apis.Oauth2.v2.Data;
+using System.Security.Claims;
 using Hutopy.Application.Common.Interfaces;
 using Hutopy.Application.Common.Models;
 using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Identity;
 
 namespace Hutopy.Infrastructure.Identity;
@@ -9,7 +11,9 @@ namespace Hutopy.Infrastructure.Identity;
 public class IdentityService(
     UserManager<ApplicationUser> userManager,
     IUserClaimsPrincipalFactory<ApplicationUser> userClaimsPrincipalFactory,
-    IAuthorizationService authorizationService)
+    IAuthorizationService authorizationService,
+    IHttpContextAccessor contextAccessor
+    )
     : IIdentityService
 {
     public async Task<string?> GetUserNameAsync(string userId)
@@ -18,6 +22,24 @@ public class IdentityService(
 
         return user?.UserName;
     }
+    
+    public async Task<UserModel?> GetUserByUserNameAsync(string userName)
+    {
+        var response = await userManager.FindByNameAsync(userName);
+        
+        if (response == null) return null;
+
+        var userModel = new UserModel()
+        {
+            Id = response.Id,
+            UserName = response.UserName,
+            FirstName = response.FirstName,
+            LastName = response.LastName,
+            Email = response.Email,
+        };
+
+        return userModel;
+    }
 
     public async Task<(Result Result, string UserId)> CreateUserAsync(string userName, string password)
     {
@@ -48,6 +70,68 @@ public class IdentityService(
 
         return (result.ToApplicationResult(), user.Id);
     }
+    
+    public async Task<Result> CreateUserAsync(string email, string userName, string firstName, string lastName, string password)
+    {
+        var applicationUser = new ApplicationUser
+        {
+            UserName = userName,
+            Email = email,
+            FirstName = firstName,
+            LastName = lastName
+        };
+
+        var response = await userManager.CreateAsync(applicationUser, password);
+        
+        return response.ToApplicationResult();
+    }
+    
+    public async Task<UserModel?> FindUserByIdAsync(string id)
+    {
+        var response = await userManager.FindByIdAsync(id);
+
+        if (response == null) return null;
+
+        var userModel = new UserModel()
+        {
+            Id = response.Id,
+            UserName = response.UserName,
+            FirstName = response.FirstName,
+            LastName = response.LastName,
+            Email = response.Email,
+        };
+
+        return userModel;
+    }
+    
+    public async Task<UserModel?> GetCurrentUserAsync()
+    {
+        var currentUserId = contextAccessor.HttpContext?.User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
+        if (string.IsNullOrEmpty(currentUserId))
+        {
+            return null;
+        }
+
+        return await FindUserByIdAsync(currentUserId);
+    }
+
+    public async Task<UserModel?> FindUserByEmailAsync(string email)
+    {
+        var response = await userManager.FindByEmailAsync(email);
+
+        if (response == null) return null;
+
+        var userModel = new UserModel
+        {
+            Id = response.Id,
+            UserName = response.UserName,
+            FirstName = response.FirstName,
+            LastName = response.LastName,
+            Email = response.Email
+        };
+
+        return userModel;
+    }
 
     public async Task<bool> IsInRoleAsync(string userId, string role)
     {
@@ -55,6 +139,14 @@ public class IdentityService(
 
         return user != null && await userManager.IsInRoleAsync(user, role);
     }
+    
+    public async Task<bool> CurrentUserIsInRoleAsync(string role)
+    {
+        var currentUserModel = await GetCurrentUserAsync();
+        var currentUser = await userManager.FindByIdAsync(currentUserModel?.Id ?? "");
+
+        return currentUser != null && await userManager.IsInRoleAsync(currentUser, role);
+    }
 
     public async Task<bool> AuthorizeAsync(string userId, string policyName)
     {
@@ -85,4 +177,32 @@ public class IdentityService(
 
         return result.ToApplicationResult();
     }
+    
+    public async Task<Result> AddRoleAsync(string userId, string role)
+    {
+        var hasAdminAccess = await CurrentUserIsInRoleAsync("Administrator");
+        
+        if (!hasAdminAccess) return Result.Failure(new []{"Only administrator can assign new roles to a user."});
+
+        var user = await userManager.FindByIdAsync(userId);
+        
+        if (user is null) return Result.Failure(new []{"User not found."});
+        
+        var result = await userManager.AddToRoleAsync(user, role);
+
+        return result.ToApplicationResult();
+    }
+    
+    public async Task<IList<string>> GetCurrentUserRolesAsync()
+    {
+        var currentUserModel = await GetCurrentUserAsync();
+        
+        var currentUser = await userManager.FindByIdAsync(currentUserModel?.Id ?? "");
+        
+        if (currentUser is null)  return [];
+
+        var userRoles = await userManager.GetRolesAsync(currentUser);
+
+        return userRoles;
+    }
 }