refactor: Introduce AppDateTime and use it whenever we need to get current DateTime

This changes enables us to change timezones in testing

5 files changed, 23 insertions, 7 deletions

diff --git a/server/src/Data/Database/ApiAccessToken.cs b/server/src/Data/Database/ApiAccessToken.cs
index 3eff5f3..a9cf0bc 100644
--- a/server/src/Data/Database/ApiAccessToken.cs
+++ b/server/src/Data/Database/ApiAccessToken.cs
@@ -8,7 +8,7 @@ public class ApiAccessToken : Base
 	public bool AllowCreate { get; set; }
 	public bool AllowUpdate { get; set; }
 	public bool AllowDelete { get; set; }
-	public bool HasExpired => ExpiryDate < DateTime.UtcNow;
+	public bool HasExpired => ExpiryDate < AppDateTime.UtcNow;
 	public ApiAccessTokenDto AsDto => new(this);
 
 	public class ApiAccessTokenDto
@@ -26,6 +26,6 @@ public class ApiAccessToken : Base
 		public bool AllowCreate { get; set; }
 		public bool AllowUpdate { get; set; }
 		public bool AllowDelete { get; set; }
-		public bool HasExpired => ExpiryDate < DateTime.UtcNow;
+		public bool HasExpired => ExpiryDate < AppDateTime.UtcNow;
 	}
 }
diff --git a/server/src/Data/Database/Base.cs b/server/src/Data/Database/Base.cs
index 90b52da..7e8591e 100644
--- a/server/src/Data/Database/Base.cs
+++ b/server/src/Data/Database/Base.cs
@@ -4,12 +4,12 @@ public class Base
 {
 	protected Base() {
 		Id = Guid.NewGuid();
-		CreatedAt = DateTime.UtcNow;
+		CreatedAt = AppDateTime.UtcNow;
 	}
 
 	public Guid Id { get; init; }
 	public DateTime CreatedAt { get; init; }
 	public DateTime? ModifiedAt { get; private set; }
 	public bool Deleted { get; set; }
-	public void Modified() => ModifiedAt = DateTime.UtcNow;
+	public void Modified() => ModifiedAt = AppDateTime.UtcNow;
 }
diff --git a/server/src/Data/Database/ForgotPasswordRequest.cs b/server/src/Data/Database/ForgotPasswordRequest.cs
index 164f09d..1510a35 100644
--- a/server/src/Data/Database/ForgotPasswordRequest.cs
+++ b/server/src/Data/Database/ForgotPasswordRequest.cs
@@ -5,7 +5,7 @@ public class ForgotPasswordRequest
 	public ForgotPasswordRequest() { }
 
 	public ForgotPasswordRequest(User user) {
-		CreatedAt = DateTime.UtcNow;
+		CreatedAt = AppDateTime.UtcNow;
 		Id = Guid.NewGuid();
 		User = user;
 	}
@@ -19,5 +19,5 @@ public class ForgotPasswordRequest
 	public DateTime ExpirationDate => CreatedAt.AddMinutes(15);
 
 	[NotMapped]
-	public bool IsExpired => DateTime.Compare(ExpirationDate, DateTime.UtcNow) < 0;
+	public bool IsExpired => DateTime.Compare(ExpirationDate, AppDateTime.UtcNow) < 0;
 }
diff --git a/server/src/Data/Dtos/UserArchiveDto.cs b/server/src/Data/Dtos/UserArchiveDto.cs
index 63b1470..42e0600 100644
--- a/server/src/Data/Dtos/UserArchiveDto.cs
+++ b/server/src/Data/Dtos/UserArchiveDto.cs
@@ -9,7 +9,7 @@ public class UserArchiveDto
 	/// <inheritdoc cref="UserArchiveDto"/>
 	public UserArchiveDto(User user) {
 		Meta = new MetaDto {
-				GeneratedAt = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ")
+				GeneratedAt = AppDateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ")
 		};
 		User = new UserDto(user);
 		Entries = new List<EntryDto>();
diff --git a/server/src/Data/Static/AppDateTime.cs b/server/src/Data/Static/AppDateTime.cs
new file mode 100644
index 0000000..880d2a8
--- /dev/null
+++ b/server/src/Data/Static/AppDateTime.cs
@@ -0,0 +1,16 @@
+namespace IOL.GreatOffice.Api.Data.Static;
+
+public static class AppDateTime
+{
+	private static DateTime? dateTime;
+
+	public static DateTime UtcNow => dateTime ?? DateTime.UtcNow;
+
+	public static void Set(DateTime setDateTime) {
+		dateTime = setDateTime;
+	}
+
+	public static void Reset() {
+		dateTime = null;
+	}
+}