using System.Text;
using MkvPropEditWrapper.Shared;

namespace MkvPropEditWrapper;

public class MkvEditCommand
{
    public const string CommandName = "mkvpropedit";

    public class SubCommand
    {
        private int? _trackNumber;

        private string? _property;
        private string? _value;

        public SubCommand()
        {
        }

        public SubCommand(int trackNumber, string property, string value)
        {
            _trackNumber = trackNumber;
            _property = property;
            _value = value;
        }

        public SubCommand WithNumber(int number)
        {
            _trackNumber = number;

            return this;
        }
        
        public SubCommand WithProperty(string property)
        {
            _property = property;

            return this;
        }

        public SubCommand WithValue(string value)
        {
            _value = value;

            return this;
        }
        
        public void AppendSelf(StringBuilder builder)
        {
            builder.Append($"track:{_trackNumber} --set {_property}:{_value}");
        }

        public override string ToString()
        {
            return $"track:{_trackNumber} --set {_property}:{_value}";
        }
    }

    private string? _filePath;
    private readonly IList<SubCommand> _subCommands;

    public MkvEditCommand()
    {
        _subCommands = new List<SubCommand>();
    }

    public MkvEditCommand(string filePath)
    {
        _filePath = filePath;

        _subCommands = new List<SubCommand>();
    }
    
    public MkvEditCommand WithFilePath(string filePath)
    {
        _filePath = filePath;

        return this;
    }
    
    public MkvEditCommand AddSubCommand(SubCommand command)
    {
        _subCommands.Add(command);

        return this;
    }

    public override string ToString()
    {
        var builder = new StringBuilder();

        builder.Append($"{CommandName} {_filePath}");

        foreach (var subCommand in _subCommands)
        {
            builder.Append(" --edit ");
            subCommand.AppendSelf(builder);
        }

        return builder.ToString();
    }
}

public static class SubCommandExtensions
{
    public static MkvEditCommand.SubCommand WithFlagDefault(this MkvEditCommand.SubCommand subCommand, bool flagDefault)
    {
        return subCommand.WithProperty(Flags.Default).WithValue(flagDefault.ToFlagBoolean());
    }
    
    public static MkvEditCommand.SubCommand WithFlagForced(this MkvEditCommand.SubCommand subCommand, bool flagForced)
    {
        return subCommand.WithProperty(Flags.Forced).WithValue(flagForced.ToFlagBoolean());
    }
}