From d6a34fd3d5cd47821e895bbea00087f8173a8434 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Qui=C3=B1anola=20CJ?= <quinanolacj303@gmail.com>
Date: Sat, 21 Feb 2026 11:39:26 +0800
Subject: [PATCH] Add files via upload

---
 InventoryService.cs | 54 ++++++++++++++++++++++++++
 InventoryView.cs    | 92 +++++++++++++++++++++++++++++++++++++++++++++
 Program.cs          | 13 +++++++
 3 files changed, 159 insertions(+)
 create mode 100644 InventoryService.cs
 create mode 100644 InventoryView.cs
 create mode 100644 Program.cs

diff --git a/InventoryService.cs b/InventoryService.cs
new file mode 100644
index 0000000..b9a4dcf
--- /dev/null
+++ b/InventoryService.cs
@@ -0,0 +1,54 @@
+namespace InventoryManagement.Services
+{
+    public class InventoryService
+    {
+        private string[,] products;
+        private int[] initialStock;
+
+        public InventoryService()
+        {
+            products = new string[2, 3];
+
+            // Row 0 - Product Names
+            products[0, 0] = "Apples";
+            products[0, 1] = "Milk";
+            products[0, 2] = "Bread";
+
+            // Row 1 - Stock Quantities
+            products[1, 0] = "10";
+            products[1, 1] = "5";
+            products[1, 2] = "20";
+
+            // Store original stock values
+            initialStock = new int[3];
+            for (int i = 0; i < 3; i++)
+            {
+                initialStock[i] = int.Parse(products[1, i]);
+            }
+        }
+
+        // Return inventory array
+        public string[,] GetInventory()
+        {
+            return products;
+        }
+
+        // Update stock for a product
+        public void UpdateStock(int productIndex, int newStock)
+        {
+            if (productIndex >= 0 && productIndex < 3)
+            {
+                products[1, productIndex] = newStock.ToString();
+            }
+        }
+
+        // Reset inventory to original stock
+        public void ResetInventory()
+        {
+            for (int i = 0; i < 3; i++)
+            {
+                products[1, i] = initialStock[i].ToString();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/InventoryView.cs b/InventoryView.cs
new file mode 100644
index 0000000..ad7e36b
--- /dev/null
+++ b/InventoryView.cs
@@ -0,0 +1,92 @@
+using System;
+using InventoryManagement.Services;
+
+namespace InventoryManagement.Views
+{
+    public class InventoryView
+    {
+        private InventoryService service;
+
+        public InventoryView()
+        {
+            service = new InventoryService();
+        }
+
+        public void Run()
+        {
+            bool isRunning = true;
+
+            while (isRunning)
+            {
+                Console.WriteLine("\n===== Inventory Management System =====");
+                Console.WriteLine("1. View Inventory");
+                Console.WriteLine("2. Update Stock");
+                Console.WriteLine("3. Reset Inventory");
+                Console.WriteLine("4. Exit");
+                Console.Write("Select an option: ");
+
+                string choice = Console.ReadLine();
+
+                switch (choice)
+                {
+                    case "1":
+                        DisplayInventory();
+                        break;
+
+                    case "2":
+                        UpdateStock();
+                        break;
+
+                    case "3":
+                        service.ResetInventory();
+                        Console.WriteLine("Inventory has been reset to original values.");
+                        break;
+
+                    case "4":
+                        isRunning = false;
+                        Console.WriteLine("Exiting program...");
+                        break;
+
+                    default:
+                        Console.WriteLine("Invalid option. Please try again.");
+                        break;
+                }
+            }
+        }
+
+        private void DisplayInventory()
+        {
+            string[,] products = service.GetInventory();
+
+            Console.WriteLine("\nCurrent Inventory:");
+            for (int i = 0; i < products.GetLength(1); i++)
+            {
+                Console.WriteLine($"{i + 1}. {products[0, i]} - Stock: {products[1, i]}");
+            }
+        }
+
+        private void UpdateStock()
+        {
+            DisplayInventory();
+
+            Console.Write("Select product number to update: ");
+            if (int.TryParse(Console.ReadLine(), out int productChoice))
+            {
+                Console.Write("Enter new stock quantity: ");
+                if (int.TryParse(Console.ReadLine(), out int newStock))
+                {
+                    service.UpdateStock(productChoice - 1, newStock);
+                    Console.WriteLine("Stock updated successfully.");
+                }
+                else
+                {
+                    Console.WriteLine("Invalid stock value.");
+                }
+            }
+            else
+            {
+                Console.WriteLine("Invalid selection.");
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Program.cs b/Program.cs
new file mode 100644
index 0000000..38d61ed
--- /dev/null
+++ b/Program.cs
@@ -0,0 +1,13 @@
+using InventoryManagement.Views;
+
+namespace InventoryManagement
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            InventoryView view = new InventoryView();
+            view.Run();
+        }
+    }
+}
\ No newline at end of file