// /**
//  * File: BilledCDRCollection.cs
//  * Author: haraldwolff
//  *
//  * This file and it's content is copyrighted by the Author and / or copyright holder.
//  * Any use without proper permission is illegal and may lead to legal actions.
//  *
//  *
//  **/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
namespace ln.provider.data.phone
{
    public class BilledCDRCollection : IEnumerable<BilledCDR>
    {
        public Tariff Tariff { get; }
        public BilledCDR[] BilledCDRs => billedCDRs.ToArray();

        List<BilledCDR> billedCDRs = new List<BilledCDR>();

        public BilledCDRCollection(Tariff tariff)
        {
            Tariff = tariff;
        }

        public BilledCDR this[int n] => billedCDRs[n];
        public int Count => billedCDRs.Count;

        public int TotalCents => (billedCDRs.Select((bc) => bc.PricePerThousand).Sum() + 9) / 10;

        public void Add(CDR cdr)
        {
            BilledCDR billedCDR = new BilledCDR(cdr, Tariff.GetRate(cdr.Called));
            billedCDRs.Add(billedCDR);
        }

        public IEnumerator<BilledCDR> GetEnumerator()
        {
            return billedCDRs.GetEnumerator();
        }

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