HR app

iJunior_C#_Lesson_35

using System.Collections;
using System.Diagnostics;
using System.Text;

namespace iJuniorPractice;

class Program
{
    static void Main(string[] args)
    {
        const int AddWorkerCommand = 1;
        const int RemoveWorkerCommand = 2;
        const int GetWorkersOnPositionCommand = 3;
        const int GetAllRecordsCommand = 4;
        const int ExitCommand = 5;

        Dictionary<string, List<string>> humanResourceRecords = new Dictionary<string, List<string>>()
        {
            {"developer", new List<string>() 
                {
                    "Ivan Ivania Petrovich" 
                }
            },
            {"manager", new List<string>()
                {
                    "Ivan Vaia Petrovich",
                    "Sergei Serg Sergeevich"
                }
            }
        };
        bool isHire = true;
        int command;

        while (isHire)
        {
            Console.WriteLine($"To add worker press - {AddWorkerCommand}\n" +
                              $"To remove worker from list press - {RemoveWorkerCommand}\n" +
                              $"To get workers list per position press - {GetWorkersOnPositionCommand}\n" +
                              $"To get full list of positions and workers press - {GetAllRecordsCommand}\n" +
                              $"To exit press - {ExitCommand}");
            
            command = ReadInt();

            switch (command)
            {
                case AddWorkerCommand:
                    AddNewWorker(humanResourceRecords);
                    break;
                
                case GetWorkersOnPositionCommand:
                    WriteWorkersPerPosition(humanResourceRecords);
                    break;
                
                case RemoveWorkerCommand:
                    RemoveWorker(humanResourceRecords);
                    break;
                
                case GetAllRecordsCommand:
                    WriteAllHRRecords(humanResourceRecords);
                    break;

                case ExitCommand:
                    isHire = false;
                    Console.WriteLine("Goodbye!");
                    break;
                
                default:
                    Console.WriteLine("Unknown command.");
                    break;
            }

            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();
            Console.Clear();
        }
    }

    static void AddNewWorker(Dictionary<string, List<string>> humanResourceRecords)
    {
        string worker;
        string position;
        
        WritePositionInCompany(humanResourceRecords);
        
        Console.Write("Enter worker name surname and patronomic: ");
        worker = ReadWorkerFullName();
            
        Console.Write("Enter worker position: ");
        position = Console.ReadLine();
        position.ToLower();

        if (humanResourceRecords.ContainsKey(position) == false)
        {
            humanResourceRecords.Add(position, new List<string>());
        }
        
        humanResourceRecords[position].Add(worker);
    }

    static void RemoveWorker(Dictionary<string, List<string>> humanResourceRecords)
    {
        int workerId;
        string position;

        WritePositionInCompany(humanResourceRecords);
        
        Console.Write("Enter position: ");
        position = ReadPosition();

        if (humanResourceRecords.ContainsKey(position))
        {
            Console.WriteLine("Position found");
            WriteWorkersPerPosition(humanResourceRecords, position);

            Console.Write("Enter worker id to remove:");
            workerId = ReadInt();

            if (humanResourceRecords[position].Count > workerId)
            {
                humanResourceRecords[position].RemoveAt(workerId);
                
                if (humanResourceRecords[position].Count <= 0)
                {
                    humanResourceRecords.Remove(position);
                }
            }
            else
            {
                Console.WriteLine("No such worker");
            }
        }
        else
        {
            Console.WriteLine("No such position.");
        }
    }

    static void WriteAllHRRecords(Dictionary<string, List<string>> humanResourceRecords)
    {
        foreach (var position in humanResourceRecords.Keys)
        {
            Console.WriteLine($"{position}: ");
            
            for (int i = 0; i < humanResourceRecords.Count; i++)
            {
                Console.WriteLine($"id {i} - {humanResourceRecords[position][i]}");
            }
        }
    }
    
    static void WriteWorkersPerPosition(Dictionary<string, List<string>> humanResourceRecords, string position = null)
    {
        if (position == null)
        {
            WritePositionInCompany(humanResourceRecords);
            
            Console.Write("Enter position: ");
            position = ReadPosition();
        }

        Console.WriteLine("Workers list:");

        if (humanResourceRecords.ContainsKey(position))
        {
            for (int i = 0; i < humanResourceRecords.Count; i++)
            {
                Console.WriteLine($"id {i} - {humanResourceRecords[position][i]}");
            }
        }
        else
        {
            Console.WriteLine("No such position found.");
        }
    }

    static void WritePositionInCompany(Dictionary<string, List<string>> humanResourceRecords)
    {
        Console.WriteLine("Positions in company: ");
        
        foreach (var position in humanResourceRecords.Keys)
        {
            Console.WriteLine(position);
        }
    }

    static int ReadInt()
    {
        string input = Console.ReadLine();
        int digit;

        while (int.TryParse(input, out digit) == false)
        {
            Console.WriteLine("Error enter digit");
            input = Console.ReadLine();
        }

        return digit;
    }

    static string ReadWorkerFullName()
    {
        string name, surname, patronomic, fullName;

        Console.WriteLine("Enter Name: ");
        name = Console.ReadLine();

        Console.WriteLine("Enter Surname: ");
        surname = Console.ReadLine();

        Console.WriteLine("Enter Patronomic");
        patronomic = Console.ReadLine();

        fullName = String.Join(" ", name, surname, patronomic);
        
        return fullName;
    }

    static string ReadPosition()
    {
        return Console.ReadLine().ToLower();
    } 
}