namespace Textile.States;

[FormatterState(SimpleBlockFormatterState.PatternBegin + @"fn[0-9]+" + SimpleBlockFormatterState.PatternEnd)]
public class FootNoteFormatterState : SimpleBlockFormatterState
{
    private int _noteID = 0;

    public FootNoteFormatterState(TextileFormatter f)
        : base(f)
    {
    }

    public override void Enter()
    {
        Formatter.Output.Write(
            string.Format("<p id=\"fn{0}\"{1}><sup>{2}</sup> ",
                _noteID,
                FormattedStylesAndAlignment("p"),
                _noteID));
    }

    public override void Exit()
    {
        Formatter.Output.WriteLine("</p>");
    }

    public override void FormatLine(string input)
    {
        Formatter.Output.Write(input);
    }

    public override bool ShouldExit(string input)
    {
        return true;
    }
    protected override void OnContextAcquired()
    {
        var m = Regex.Match(Tag, @"^fn(?<id>[0-9]+)");
        _noteID = int.Parse(m.Groups["id"].Value);
    }

    public override bool ShouldNestState(FormatterState other)
    {
        return false;
    }
}