using System;

using System.Collections.Generic;

using System.Linq;

​

class AssetManagementSystem

{

    private static Dictionary<string, string> authorizedUsers = new Dictionary<string, string>();

    private static Dictionary<string, (string Name, string Condition, string Status)> assets = new Dictionary<string, (string, string, string)>();

    private static string managerID;

    private static bool isFirstSetup = true;

​

    static void Main()

    {

        Console.WriteLine("Welcome to the School Asset Management System");

​

        if (isFirstSetup)

        {

            SetupManager();

            AuthenticateUser(managerID);

        }

        else

        {

            AuthenticateUser();

        }

    }

​

    static void SetupManager()

    {

        Console.Write("Enter Manager ID for Initial Setup: ");

        managerID = Console.ReadLine();

        authorizedUsers[managerID] = "Manager";

        isFirstSetup = false;

        Console.WriteLine("System Setup Complete. Manager Registered.");

    }

​

    static void AuthenticateUser(string userID = null)

    {

        if (userID == null)

        {

            Console.Write("Enter Your ID: ");

            userID = Console.ReadLine();

        }

        if (authorizedUsers.ContainsKey(userID))

        {

            Console.WriteLine($"Access granted. Welcome, {authorizedUsers[userID]}.");

            ShowMenu(userID);

        }

        else

        {

            Console.WriteLine("Access Denied. You are not authorized to use this system.");

        }

    }

​

    static void ShowMenu(string userID)

    {

        while (true)

        {

            Console.WriteLine("\nMenu:");

            Console.WriteLine("1. Add New Assets");

            Console.WriteLine("2. View Assets");

            Console.WriteLine("3. Update Asset Condition");

            Console.WriteLine("4. Update Asset Status");

            Console.WriteLine("5. Remove Assets");

            Console.WriteLine("6. Add New User (Manager Only)");

            Console.WriteLine("7. Exit");

            Console.Write("Select an option: ");

            string choice = Console.ReadLine();

​

            switch (choice)

            {

                case "1":

                    AddMultipleAssets();

                    break;

                case "2":

                    ViewAssets();

                    break;

                case "3":

                    UpdateAssetCondition();

                    break;

                case "4":

                    UpdateAssetStatus();

                    break;

                case "5":

                    RemoveMultipleAssets();

                    break;

                case "6":

                    if (userID == managerID)

                    {

                        AddUser();

                    }

                    else

                    {

                        Console.WriteLine("Only the Manager can add new users.");

                    }

                    break;

                case "7":

                    Console.WriteLine("Exiting...");

                    return;

                default:

                    Console.WriteLine("Invalid choice. Try again.");

                    break;

            }

        }

    }

​

    static void AddUser()

    {

        Console.Write("Enter New User ID: ");

        string newUserID = Console.ReadLine();

        Console.Write("Enter User Role (e.g., Staff, Auditor): ");

        string role = Console.ReadLine();

        authorizedUsers[newUserID] = role;

        Console.WriteLine("User added successfully.");

    }

​

    static void AddMultipleAssets()

    {

        Console.Write("Enter the number of assets to add: ");

        if (!int.TryParse(Console.ReadLine(), out int count) || count <= 0)

        {

            Console.WriteLine("Invalid number of assets.");

            return;

        }

        Console.Write("Enter the initial asset ID: ");

        string initialID = Console.ReadLine();

        Console.Write("Enter Asset Name: ");

        string assetName = Console.ReadLine();

​

        string prefix = new string(initialID.TakeWhile(char.IsLetter).ToArray());

        string numericPartStr = new string(initialID.SkipWhile(char.IsLetter).ToArray());

​

        if (!int.TryParse(numericPartStr, out int numericPart))

        {

            Console.WriteLine("Invalid initial ID format. Ensure it contains a valid number at the end.");

            return;

        }

​

        int digitCount = numericPartStr.Length;

​

        string condition = "";

        string status = "";

        // Prompt for condition and status for the first asset

        Console.Write($"Enter condition for {assetName} (ID: {initialID}): ");

        condition = Console.ReadLine();

        Console.Write($"Enter status (Active, Dormant, Under Repair, Broken) for {assetName} (ID: {initialID}): ");

        status = Console.ReadLine();

​

        for (int i = 0; i < count; i++)

        {

            string newID = prefix + (numericPart + i).ToString($"D{digitCount}");

            assets[newID] = (assetName, condition, status);

            Console.WriteLine($"Asset {assetName} (ID: {newID}) with condition '{condition}' and status '{status}' added successfully.");

        }

    }

​

    static void ViewAssets()

    {

        if (assets.Count == 0)

        {

            Console.WriteLine("No assets available.");

            return;

        }

        Console.WriteLine("\nList of Assets:");

        foreach (var asset in assets)

        {

            Console.WriteLine($"ID: {asset.Key}, Name: {asset.Value.Name}, Condition: {asset.Value.Condition}, Status: {asset.Value.Status}");

        }

    }

​

    static void UpdateAssetCondition()

    {

        Console.Write("Enter Asset ID to update condition: ");

        string assetID = Console.ReadLine();

        if (assets.ContainsKey(assetID))

        {

            Console.Write("Enter new condition: ");

            string newCondition = Console.ReadLine();

            var asset = assets[assetID];

            assets[assetID] = (asset.Name, newCondition, asset.Status);

            Console.WriteLine("Asset condition updated successfully.");

        }

        else

        {

            Console.WriteLine("Asset not found.");

        }

    }

​

    static void UpdateAssetStatus()

    {

        Console.Write("Enter Asset ID to update status: ");

        string assetID = Console.ReadLine();

        if (assets.ContainsKey(assetID))

        {

            Console.Write("Enter new status (Active, Dormant, Under Repair, Broken): ");

            string newStatus = Console.ReadLine();

            var asset = assets[assetID];

            assets[assetID] = (asset.Name, asset.Condition, newStatus);

            Console.WriteLine("Asset status updated successfully.");

        }

        else

        {

            Console.WriteLine("Asset not found.");

        }

    }

​

    static void RemoveMultipleAssets()

    {

        Console.WriteLine("Enter asset IDs to remove (Type 'done' to finish):");

        List<string> assetsToRemove = new List<string>();

​

        while (true)

        {

            Console.Write("Enter Asset ID: ");

            string assetID = Console.ReadLine();

            if (assetID.ToLower() == "done") break;

​

            if (assets.ContainsKey(assetID))

            {

                assetsToRemove.Add(assetID);

            }

            else

            {

                Console.WriteLine("Asset not found.");

            }

        }

​

        foreach (var assetID in assetsToRemove)

        {

            assets.Remove(assetID);

            Console.WriteLine($"Asset ID {assetID} removed successfully.");

        }

    }

}

​