using MultiTerm.Core.ViewModel;
using System.Text;

namespace MultiTerm.Core.Helpers;

public static class ByteDataViewModelHelpers
{
    public static string GetCharacterStringOfBytesDataViewModels(IEnumerable<ByteDataViewModel> collection)
    {
        StringBuilder stringBuilder = new StringBuilder();
        int prevLineIdentifier = collection.First().LineIdentifier;

        foreach (var item in collection)
        {
            // add newline if line identifier increased
            if(item.LineIdentifier > prevLineIdentifier)
            {
                stringBuilder.Append(Environment.NewLine);
            }
            prevLineIdentifier = item.LineIdentifier;
            // add item as character
            stringBuilder.Append(item.DisplayStringChar);
        }
        return stringBuilder.ToString();
    }

    public static string GetHexadecimalStringOfBytesDataViewModels(IEnumerable<ByteDataViewModel> collection)
    {
        StringBuilder stringBuilder = new StringBuilder();
        int prevLineIdentifier = collection.First().LineIdentifier;

        foreach (var item in collection)
        {
            // add newline if line identifier increased
            if (item.LineIdentifier > prevLineIdentifier)
            {
                stringBuilder.Append(Environment.NewLine);
            }
            prevLineIdentifier = item.LineIdentifier;

            // add item as hex byte
            stringBuilder.Append(item.DisplayStringHex);

            // add spacing if it is not the last item
            if (item != collection.Last())
            {
                stringBuilder.Append(' ');
            }
        }
        return stringBuilder.ToString();
    }

    public static string GetBinaryStringOfEBytesDataViewModels(IEnumerable<ByteDataViewModel> collection)
    {
        StringBuilder stringBuilder = new StringBuilder();
        int prevLineIdentifier = collection.First().LineIdentifier;

        foreach (var item in collection)
        {
            // add newline if line identifier increased
            if (item.LineIdentifier > prevLineIdentifier)
            {
                stringBuilder.Append(Environment.NewLine);
            }
            prevLineIdentifier = item.LineIdentifier;

            // add item as binary byte
            stringBuilder.Append(item.DisplayStringBin);

            // add spacing if it is not the last item
            if (item != collection.Last())
            {
                stringBuilder.Append(' ');
            }
        }
        return stringBuilder.ToString();
    }
}