using System.Globalization;

namespace Tranga;

/// <summary>
/// Has to be Part of a publication
/// Includes the Chapter-Name, -VolumeNumber, -ChapterNumber, the location of the chapter on the internet and the saveName of the local file.
/// </summary>
public struct Chapter
{
    public string? name { get; }
    public string? volumeNumber { get; }
    public string? chapterNumber { get; }
    public string url { get; }
    public string fileName { get; }

    public Chapter(string? name, string? volumeNumber, string? chapterNumber, string url)
    {
        this.name = name;
        this.volumeNumber = volumeNumber;
        this.chapterNumber = chapterNumber;
        this.url = url;
        string chapterName = string.Concat((name ?? "").Split(Path.GetInvalidFileNameChars()));
        NumberFormatInfo nfi = new NumberFormatInfo()
        {
            NumberDecimalSeparator = "."
        };
        decimal orderNumber = Convert.ToDecimal(volumeNumber) * Convert.ToDecimal(chapterNumber, nfi);
        this.fileName = $"{chapterName} - V{volumeNumber}C{chapterNumber} - {decimal.Round(orderNumber, 1).ToString(nfi)}";
    }
}