using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Irony.Ast;
using Irony.Interpreter;
using Irony.Parsing;

namespace IronyTests
{
    public class CameraControlGrammar : Grammar
    {
        public CameraControlGrammar()
        {

            var program = new NonTerminal("program");
            var cameraSize = new NonTerminal("cameraSize");
            var cameraPosition = new NonTerminal("cameraPosition");
            var commandList = new NonTerminal("commandList");
            var command = new NonTerminal("command");
            var direction = new NonTerminal("direction");
            var number = new NonTerminal("number");


            this.Root = program;

            program.Rule = cameraSize + cameraPosition + commandList;

            cameraSize.Rule = Symbol("set") + "camera" + "position" + ":" +
                                number + "," + number + ".";

            cameraPosition.Rule = Symbol("set") + "camera" + "size" + ":" +
                                number + "," + number + ".";

            commandList.Rule = MakePlusRule(commandList, null, command);

            command.Rule = Symbol("move") + number + "pixels" + direction + ".";

            direction.Rule = Symbol("up") | "down" | "left" | "right";

            this.RegisterPunctuation("set", "camera", "size", ":",
                                     "by", "pixels", ".", "position", ",", "move");

        }

        public void Compile()
        {
            CameraControlGrammar grammar = new CameraControlGrammar();
            LanguageCompiler compiler = new LanguageCompiler(grammar);
            AstNode program = compiler.Parse("some code");
        }
    }
}