namespace Textile.States;

[FormatterState(@"^\s*(?<tag>table)" +
                Globals.SpanPattern +
                Globals.AlignPattern +
                Globals.BlockModifiersPattern +
                @"\.\s*$")]
public class TableFormatterState : FormatterState
{
    private string _attsInfo;
    private string _alignInfo;

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

    public override string Consume(string input, Match m)
    {
        _alignInfo = m.Groups["align"].Value;
        _attsInfo = m.Groups["atts"].Value;

        //TODO: check the state (it could already be a table!)
        this.Formatter.ChangeState(this);

        return string.Empty;
    }

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

    public override void Enter()
    {
        Formatter.Output.WriteLine("<table" + FormattedStylesAndAlignment() + ">");
    }

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

    public override void FormatLine(string input)
    {
        if (input.Length > 0)
            throw new Exception("The TableFormatter state is not supposed to format any lines!");
    }

    public override bool ShouldExit(string input)
    {
        var m = Regex.Match(input,
                                @"^\s*" + Globals.AlignPattern + Globals.BlockModifiersPattern +
                                @"(\.\s?)?(?<tag>\|)" +
                                @"(?<content>.*)(?=\|)"
                                );
        return !m.Success;
    }

    protected string FormattedStylesAndAlignment()
    {
        return Blocks.BlockAttributesParser.ParseBlockAttributes(_alignInfo + _attsInfo);
    }
}