1 files changed, 53 insertions, 0 deletions
diff --git a/code/api/Services/Admin/UserService.cs b/code/api/Services/Admin/UserService.cs
new file mode 100644
index 0000000..94a64ef
--- /dev/null
+++ b/code/api/Services/Admin/UserService.cs
@@ -0,0 +1,53 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+
+namespace I2R.Storage.Api.Services.Admin;
+
+public class UserService
+{
+    private readonly AppDatabase _database;
+    private readonly ILogger<UserService> _logger;
+
+    public UserService(AppDatabase database, ILogger<UserService> logger) {
+        _database = database;
+        _logger = logger;
+    }
+
+    public bool CanCreateAccount(string username) {
+        if (username.IsNullOrWhiteSpace()) {
+            return false;
+        }
+
+        var normalisedUsername = username.Trim();
+        return _database.Users.All(c => c.Username != normalisedUsername);
+    }
+
+    public async Task LogInUserAsync(HttpContext httpContext, IEnumerable<Claim> claims) {
+        var identity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+        var principal = new ClaimsPrincipal(identity);
+        var authenticationProperties = new AuthenticationProperties {
+            AllowRefresh = true,
+            IssuedUtc = DateTimeOffset.UtcNow,
+        };
+
+        await httpContext.SignInAsync(principal, authenticationProperties);
+        _logger.LogInformation("Logged in user {userId}", principal.FindFirstValue(AppClaims.USER_ID));
+    }
+
+    public async Task LogOutUserAsync(HttpContext httpContext, CancellationToken cancellationToken = default) {
+        await httpContext.SignOutAsync();
+        _logger.LogInformation("Logged out user {userId}", httpContext.User.FindFirstValue(AppClaims.USER_ID));
+    }
+
+    public async Task MarkUserAsDeleted(Guid userId, Guid actorId) {
+        var user = _database.Users.FirstOrDefault(c => c.Id == userId);
+        if (user == default) {
+            _logger.LogInformation("Tried to delete unknown user {userId}", userId);
+            return;
+        }
+
+        user.SetDeleted(actorId);
+        await _database.SaveChangesAsync();
+    }
+}
+\ No newline at end of file