using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Program
{
    class Program
    {
        private static Bank Bank { get; set; } = new Bank();
        public static void Main()
        {
            Bank.AddCredit("Nick Peterson", 100000d, 0.15, new DateTime(23, 03, 20), 30);
            Bank.AddCredit("Ben Alinson", 10000d, 0.165, new DateTime(22, 03, 20), 10);
            Bank.AddCredit("All Alinson", 1000d, 0.165, new DateTime(23, 04, 20), 2);

            Bank.PrintCredits();

            Console.ReadKey();
        }
    }

    class Bank : IEnumerable
    {
        public string Name { get; set; }
        public string MainAddress { get; set; }
        public List<Credit> Credits { get; set; } = new List<Credit>();

        public void AddCredit(string receiver, double creditSum, double percent, DateTime creditRecivingDate, int loanRepaymentPeriod)
        { 
            Credits.Add(new Credit(receiver, creditSum, percent, creditRecivingDate, loanRepaymentPeriod));
        }

        public void AddCredit(Credit credit)
        {
            Credits.Add(credit);
        }

        public void PrintCredits()
        {
            var creditNumber = 1;
            foreach (var cr in Credits)
            {
                Console.WriteLine($"Credit number: {creditNumber} {cr.GetCreditInfo()}");
                ++creditNumber;
            }
        }

        public IEnumerator GetEnumerator()
        {
            return ((IEnumerable)Credits).GetEnumerator();
        }
    }

    class Credit : IComparable
    {
        public string Receiver { get; set; }
        public double CreditSum { get; set; }
        public double Percent { get; set; }
        public DateTime CreditRecivingDate { get; set; }
        public int LoanRepaymentPeriod { get; set; }

        public Credit(string receiver, double creditSum, double percent, DateTime creditRecivingDate, int loanRepaymentPeriod)
        {
            Receiver = receiver;
            CreditSum = creditSum;
            Percent = percent;
            CreditRecivingDate = creditRecivingDate;
            LoanRepaymentPeriod = loanRepaymentPeriod;
        }

        public void Print()
        {
            Console.WriteLine($"Credit for {Receiver} from {CreditRecivingDate.ToShortDateString()}:\n\r\tCredit sum: {CreditSum},\n\r\tPercent {Percent},\n\r\tLoan repayment period {LoanRepaymentPeriod}\n\r");
        }

        public string GetCreditInfo()
        {
            return $"Credit for {Receiver} from {CreditRecivingDate.ToShortDateString()}:\n\r\tCredit sum: {CreditSum},\n\r\tPercent {Percent},\n\r\tLoan repayment period {LoanRepaymentPeriod}\n\r";
        }

        public int CompareTo(object obj)
        {
            return this.CompareTo(obj);
        }
    }
}