using System;
using System.IO;
using System.Collections.Generic;
using System.Text;

using CodeImp.DoomBuilder.ZDoom;
using CodeImp.DoomBuilder.GZBuilder.Data;

//mxd. Decorate parser used to create ScriptItems for use in script editor's navigator
namespace CodeImp.DoomBuilder.GZBuilder.GZDoom
{
    internal sealed class DecorateParserSE : ZDTextParser
    {
        private List<ScriptItem> actors;
        public List<ScriptItem> Actors { get { return actors; } }

        public DecorateParserSE() {
            actors = new List<ScriptItem>();
        }

        public override bool Parse(Stream stream, string sourcefilename) {
            base.Parse(stream, sourcefilename);

            // Continue until at the end of the stream
            while (SkipWhitespace(true)) {
                string token = ReadToken();

                if (!string.IsNullOrEmpty(token)) {
                    token = token.ToLowerInvariant();

                    if (token == "actor") {
                        int startPos = (int)stream.Position - 6;
                        SkipWhitespace(true);

                        List<string> definition = new List<string>();

                        while ((token = ReadToken()) != "{") {
                            definition.Add(token);
                            SkipWhitespace(true);
                        }

                        string name = "";
                        foreach (string s in definition)
                            name += s + " ";

                        actors.Add(new ScriptItem(0, name.TrimEnd(), startPos, (int)stream.Position - 2));
                    }
                }
            }

            //sort nodes
            actors.Sort(ScriptItem.SortByName);
            return true;
        }
    }
}