Added transaction object, crud class and controller for transactions

Controllers/ProductController.cs

@@ -1,7 +1,5 @@
-using Microsoft.AspNetCore.Mvc;
-using FirmTracker_Server.nHibernate.Products;
-using FirmTracker_Server;
-using System.Collections.Generic;
+using FirmTracker_Server.nHibernate.Products;
+using Microsoft.AspNetCore.Mvc;
 namespace FirmTracker_Server.Controllers
 {
     [Route("api/[controller]")]
@@ -93,5 +91,37 @@ namespace FirmTracker_Server.Controllers
             var products = _productCrud.GetAllProducts();
             return Ok(products);
         }
+
+        [HttpPost("CalculateTotalPrice")]
+        [ProducesResponseType(200)]
+        [ProducesResponseType(400)]
+        public IActionResult CalculateTotalPrice([FromBody] ProductOrder[] orders)
+        {
+            decimal totalPrice = 0;
+            decimal discount = 0;
+            foreach (var order in orders)
+            {
+                discount = order.Discount;
+                var product = _productCrud.GetProduct(order.ProductId);
+                if (product == null)
+                {
+                    return BadRequest($"Product with ID {order.ProductId} not found.");
+                }
+                totalPrice += product.Price * order.Quantity;
+            }
+
+            // Apply discount
+            decimal discountAmount = totalPrice * (discount / 100);
+            totalPrice -= discountAmount;
+
+            return Ok(new { TotalPrice = totalPrice });
+        }
+
+        public class ProductOrder
+        {
+            public int ProductId { get; set; }
+            public int Quantity { get; set; }
+            public decimal Discount { get; set; }   
+        }
     }
 }

Controllers/TransactionController.cs

@@ -0,0 +1,100 @@
+using Microsoft.AspNetCore.Mvc;
+using FirmTracker_Server.nHibernate.Transactions;
+using FirmTracker_Server;
+using System.Collections.Generic;
+
+
+namespace FirmTracker_Server.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class TransactionController : ControllerBase
+    {
+        private readonly TransactionCRUD _transactionCRUD;
+
+        public TransactionController()
+        {
+            _transactionCRUD = new TransactionCRUD();
+        }
+
+        // POST: api/Transaction
+        /// <summary>
+        /// Creates a new transaction.
+        /// </summary>
+        [HttpPost]
+        [ProducesResponseType(StatusCodes.Status201Created)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        public IActionResult CreateTransaction([FromBody] Transaction transaction)
+        {
+            try
+            {
+                _transactionCRUD.AddTransaction(transaction);
+                return CreatedAtAction(nameof(GetTransaction), new { id = transaction.Id }, transaction);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+
+        // GET: api/Transaction/5
+        [HttpGet("{id}")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status404NotFound)]
+        public IActionResult GetTransaction(int id)
+        {
+            var transaction = _transactionCRUD.GetTransaction(id);
+            if (transaction == null)
+                return NotFound();
+            return Ok(transaction);
+        }
+
+        // PUT: api/Transaction/5
+        [HttpPut("{id}")]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        public IActionResult UpdateTransaction(int id, [FromBody] Transaction transaction)
+        {
+            if (id != transaction.Id)
+                return BadRequest("Transaction ID mismatch");
+
+            try
+            {
+                _transactionCRUD.UpdateTransaction(transaction);
+                return NoContent();
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+
+        // DELETE: api/Transaction/5
+        [HttpDelete("{id}")]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status404NotFound)]
+        public IActionResult DeleteTransaction(int id)
+        {
+            try
+            {
+                _transactionCRUD.DeleteTransaction(id);
+                return NoContent();
+            }
+            catch (Exception ex)
+            {
+                return NotFound(ex.Message);
+            }
+        }
+
+        // GET: api/Transaction
+        [HttpGet]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        public IActionResult GetAllTransactions()
+        {
+            var transactions = _transactionCRUD.GetAllTransactions();
+            return Ok(transactions);
+        }
+
+    }
+}

Program.cs

@@ -15,17 +15,14 @@ namespace FirmTracker_Server
         {
             var builder = WebApplication.CreateBuilder(args);
             string appDirectory = Directory.GetCurrentDirectory();        
-            // Combine the application directory with the relative path to the config file
             string configFilePath = Path.Combine(appDirectory, "appsettings.json");
             string connectionString = "";
-            // Check if the config file exists
             if (File.Exists(configFilePath))
             {
                 var config = new ConfigurationBuilder()
                   .AddJsonFile(configFilePath)
                   .Build();
 
-
                 var connectionstringsection = config.GetSection("AppSettings:ConnectionString");
 
                 connectionString = connectionstringsection.Value;
@@ -72,7 +69,6 @@ namespace FirmTracker_Server
                 Console.WriteLine("Nie uda³o siê uruchomiæ swaggera");
             }
 
-            Console.WriteLine("raz dwa trzy");
 
             app.UseAuthorization();
 

TestClass.cs

@@ -1,4 +1,5 @@
-using FirmTracker_Server.nHibernate; 
+using FirmTracker_Server.Controllers;
+using FirmTracker_Server.nHibernate; 
 using FirmTracker_Server.nHibernate.Products;
 using NHibernate;
 
@@ -26,12 +27,23 @@ namespace FirmTracker_Server
                 Type = 0,
                 Availability = 0
             };
+            var transaction1 = new nHibernate.Transactions.Transaction
+            {
+                Date = DateTime.Now,
+                Description = "testowa transakcja",
+                Discount = 10,
+                EmployeeId = 1,
+                PaymentType = "Karta kredytowa",
+                Products = new List<Product> { product, product2 }
+            };
 
             try
             {
                 FirmTracker_Server.nHibernate.Products.ProductCRUD crud = new ProductCRUD();
+                FirmTracker_Server.nHibernate.Transactions.TransactionCRUD transactionCrud = new nHibernate.Transactions.TransactionCRUD();
                 crud.AddProduct(product);
                 crud.AddProduct(product2);
+                transactionCrud.AddTransaction(transaction1);
             }
             catch(Exception ex)
             {

nHIbernate/SessionFactory.cs

@@ -25,7 +25,12 @@ namespace FirmTracker_Server.nHibernate
                 .Database(MsSqlConfiguration.MsSql2012
         .ConnectionString(c => c.Is(connectionString))
         .ShowSql())
-                .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Products.ProductMapping>())
+                .Mappings(m =>
+                {
+                    m.FluentMappings
+                    .AddFromAssemblyOf<Products.ProductMapping>()
+                    .AddFromAssemblyOf<Transactions.TransactionMapping>();           
+                })
                 .ExposeConfiguration(cfg => new SchemaExport(cfg).Create(true, true))  //SchemaUpdate . Execute  dla only update
                 .BuildSessionFactory();
         }

nHibernate/Transactions/Transaction.cs

@@ -0,0 +1,21 @@
+using FirmTracker_Server.nHibernate.Products;
+using System.Text.Json.Serialization;
+
+namespace FirmTracker_Server.nHibernate.Transactions
+{
+    public class Transaction
+    {
+        public virtual int Id { get; set; }
+        public virtual DateTime Date { get; set; }  
+        public virtual int EmployeeId { get; set; }
+        public virtual IList<Product> Products { get; set; } = new List<Product>();
+        public virtual string PaymentType { get; set; }
+        public virtual int Discount { get; set; }
+        public virtual string Description { get; set; }
+
+        public Transaction()
+        {
+            Products = new List<Product>();
+        }
+    }
+}

nHibernate/Transactions/TransactionCRUD.cs

@@ -0,0 +1,95 @@
+using FirmTracker_Server.nHibernate;
+using FirmTracker_Server.nHibernate.Products;
+using NHibernate;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.OpenApi;
+using Microsoft.AspNetCore.Http.HttpResults;
+using FirmTracker_Server.nHibernate.Transactions;
+using NHibernate.Linq;
+
+namespace FirmTracker_Server.nHibernate.Transactions
+{
+    public class TransactionCRUD
+    {
+        public void AddTransaction(Transaction transaction)
+        {
+            using (var session = SessionFactory.OpenSession())
+            using (var sessionTransaction = session.BeginTransaction())
+            {
+                try
+                {
+                    session.Save(transaction);
+                    sessionTransaction.Commit();
+                }
+                catch
+                {
+                    sessionTransaction.Rollback();
+                    throw;
+                }
+            }
+        }
+
+        public Transaction GetTransaction(int transactionId)
+        {
+            using (var session = SessionFactory.OpenSession())
+            {
+                var transaction = session.Query<Transaction>()
+                    .Fetch(t => t.Products)
+                    .FirstOrDefault(t => t.Id == transactionId);
+                return transaction;
+            }
+        }
+
+        public void UpdateTransaction(Transaction transaction)
+        {
+            using (var session = SessionFactory.OpenSession())
+            using (var t = session.BeginTransaction())
+            {
+                try
+                {
+                    session.Update(transaction);
+                    t.Commit();
+                }
+                catch
+                {
+                    t.Rollback();
+                    throw;
+                }
+            }
+        }
+
+        public void DeleteTransaction(int transactionId)
+        {
+            using (var session = SessionFactory.OpenSession())
+            using (var t = session.BeginTransaction())
+            {
+                try
+                {
+                    var transaction = session.Get<Product>(transactionId);
+                    if (transaction != null)
+                    {
+                        session.Delete(transaction);
+                        t.Commit();
+                    }
+                }
+                catch
+                {
+                    t.Rollback();
+                    throw;
+                }
+            }
+        }
+
+        public IList<Transaction> GetAllTransactions()
+        {
+            using (var session = SessionFactory.OpenSession())
+            {
+                var transactions = session.Query<Transaction>()
+                    .FetchMany(t => t.Products)
+                    .ToList();
+                return transactions;
+            }
+        }
+    }
+
+}

nHibernate/Transactions/TransactionMapping.cs

@@ -0,0 +1,24 @@
+using FluentNHibernate.Mapping;
+
+namespace FirmTracker_Server.nHibernate.Transactions
+{
+    public class TransactionMapping:ClassMap<Transaction>
+    {
+        public TransactionMapping()
+        {
+            Table("Transactions");
+            Id(x => x.Id).GeneratedBy.Identity();
+            Map(x => x.Date);
+            Map(x => x.EmployeeId);
+            Map(x => x.PaymentType);
+            Map(x => x.Discount);
+            Map(x => x.Description);
+
+            HasManyToMany(x => x.Products)
+                .Table("TransactionProducts") 
+                .ParentKeyColumn("TransactionId")
+                .ChildKeyColumn("ProductId")
+                .Cascade.All();
+        }
+    }
+}