Refactor data layer, add business layer

DataLayer/scripts/crud/USP_CreateUserAccount.sql

@@ -0,0 +1,36 @@
+
+CREATE OR ALTER PROCEDURE usp_CreateUserAccount
+(
+    @UserAccountId UNIQUEIDENTIFIER = NULL,
+    @Username VARCHAR(64),
+    @FirstName NVARCHAR(128),
+    @LastName NVARCHAR(128),
+    @DateOfBirth DATETIME,
+    @Email VARCHAR(128)
+)
+AS
+BEGIN
+    SET NOCOUNT ON
+    SET XACT_ABORT ON
+    BEGIN TRANSACTION
+
+    INSERT INTO UserAccount 
+    (
+        UserAccountID,
+        Username,
+        FirstName,
+        LastName,
+        DateOfBirth,
+        Email
+    )
+    VALUES
+    (
+        COALESCE(@UserAccountId, NEWID()),
+        @Username,
+        @FirstName,
+        @LastName,
+        @DateOfBirth,
+        @Email
+    );
+    COMMIT TRANSACTION
+END;

DataLayer/scripts/crud/USP_DeleteUserAccount.sql

@@ -0,0 +1,23 @@
+
+CREATE OR ALTER PROCEDURE usp_DeleteUserAccount
+(
+    @UserAccountId UNIQUEIDENTIFIER
+)
+AS
+BEGIN
+    SET NOCOUNT ON
+    SET XACT_ABORT ON
+    BEGIN TRANSACTION
+
+    IF NOT EXISTS (SELECT 1 FROM UserAccount WHERE UserAccountId = @UserAccountId)
+    BEGIN
+        RAISERROR('UserAccount with the specified ID does not exist.', 16,
+        1);
+        ROLLBACK TRANSACTION
+        RETURN
+    END
+
+    DELETE FROM UserAccount 
+    WHERE UserAccountId = @UserAccountId;
+    COMMIT TRANSACTION
+END;

DataLayer/scripts/crud/USP_GetAllUserAccounts.sql

@@ -0,0 +1,17 @@
+
+CREATE OR ALTER PROCEDURE usp_GetAllUserAccounts
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    SELECT UserAccountID,
+           Username,
+           FirstName,
+           LastName,
+           Email,
+           CreatedAt,
+           UpdatedAt,
+           DateOfBirth,
+           Timer
+    FROM dbo.UserAccount;
+END;

DataLayer/scripts/crud/USP_GetUserAccountByEmail.sql

@@ -0,0 +1,21 @@
+
+CREATE OR ALTER PROCEDURE usp_GetUserAccountByEmail
+(
+    @Email VARCHAR(128)
+)
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    SELECT UserAccountID,
+           Username,
+           FirstName,
+           LastName,
+           Email,
+           CreatedAt,
+           UpdatedAt,
+           DateOfBirth,
+           Timer
+    FROM dbo.UserAccount
+    WHERE Email = @Email;
+END;

DataLayer/scripts/crud/USP_GetUserAccountById.sql

@@ -0,0 +1,21 @@
+
+CREATE OR ALTER PROCEDURE usp_GetUserAccountById
+(
+    @UserAccountId UNIQUEIDENTIFIER
+)
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    SELECT UserAccountID,
+           Username,
+           FirstName,
+           LastName,
+           Email,
+           CreatedAt,
+           UpdatedAt,
+           DateOfBirth,
+           Timer
+    FROM dbo.UserAccount
+    WHERE UserAccountID = @UserAccountId;
+END;

DataLayer/scripts/crud/USP_GetUserAccountByUsername.sql

@@ -0,0 +1,21 @@
+
+CREATE OR ALTER PROCEDURE usp_GetUserAccountByUsername
+(
+    @Username VARCHAR(64)
+)
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    SELECT UserAccountID,
+           Username,
+           FirstName,
+           LastName,
+           Email,
+           CreatedAt,
+           UpdatedAt,
+           DateOfBirth,
+           Timer
+    FROM dbo.UserAccount
+    WHERE Username = @Username;
+END;

DataLayer/scripts/crud/USP_UpdateUserAccount.sql

@@ -0,0 +1,35 @@
+
+CREATE OR ALTER PROCEDURE usp_UpdateUserAccount
+(
+    @Username VARCHAR(64),
+    @FirstName NVARCHAR(128),
+    @LastName NVARCHAR(128),
+    @DateOfBirth DATETIME,
+    @Email VARCHAR(128),
+    @UserAccountId UNIQUEIDENTIFIER
+)
+AS
+BEGIN
+    SET NOCOUNT ON
+    SET XACT_ABORT ON
+    BEGIN TRANSACTION
+
+    IF NOT EXISTS (SELECT 1 FROM UserAccount WHERE UserAccountId = @UserAccountId)
+    BEGIN
+        RAISERROR('UserAccount with the specified ID does not exist.', 16,
+        1);
+        ROLLBACK TRANSACTION
+        RETURN
+    END 
+
+    UPDATE UserAccount
+    SET
+        Username = @Username,
+        FirstName = @FirstName,
+        LastName = @LastName,
+        DateOfBirth = @DateOfBirth,
+        Email = @Email
+    WHERE UserAccountId = @UserAccountId;
+
+    COMMIT TRANSACTION
+END;