using GameHandler.Extensions;
using GameModel;
using GameModel.Exceptions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using GameHandler.GameHandler;
using GameHandler.Parser;
using GameModel.Contract;
using GameModel.DeathGame;

namespace GameHandler
{
    public class GameService
    {
        private bool _isStarted = false;
        private IGameHandler _gh;
        private ThrowHandler _th;
        private ThrowState _lastState;

        public GameService()
        {
            
        }

        public string ThrowModeName
        {
            get
            {
                if (_lastState != null)
                {
                    return _lastState.BoardState.ThrowMode == ThrowMode.Decrease ? "Abräumen" : "Volle";
                }
                return string.Empty;
            }
        }

        static int[] defaultPlayerIds => new[] {1,2,3,4};

        public ThrowState Start(string gameName = FreeGameHandler.GAMENAME_FREETRAINING) // TODO: add players
        {
            return Start(defaultPlayerIds, new DeathGameSettings(6), gameName);
        }

        public ThrowState Start(int[] playerIds, IGameSettings gameSettings, string gameName = FreeGameHandler.GAMENAME_FREETRAINING) // TODO: add players
        {
            if (_isStarted)
            {
                throw new InvalidGameStateExcpetion("Game already started");
            }
            _isStarted = true;

            _gh = this.GetGameHandler(gameName);
            var gm = _gh.InitGameModel(playerIds, gameSettings);

            _th = new ThrowHandler();
            
            //var throwMode = GameTypeId == 0 ? ThrowMode.Reposition : ThrowMode.Decrease;
            //var throwsPerRount = GameTypeId == 0 ? INFINIT_THROWS : 3;

            _lastState = ThrowState.Create(_gh.ThrowMode(), _gh.ThrowsPerRount());
            return _lastState;
            
        }

        //private IGameHandler GetGameHandler(string gameName)
        //{
        //    throw new NotImplementedException();
        //}

        public ThrowState HandleThrow(PinThrow pinThrow)
        {
            if (!_isStarted)
            {
                throw new InvalidGameStateExcpetion("Game not started");
            }

            _lastState = _th.Update(_lastState, pinThrow);
            return _lastState;
        }

        public void Stop()
        {
            if (!_isStarted)
            {
                throw new InvalidGameStateExcpetion("Game not started");
            }
            _isStarted = false;
        }

        public ThrowCommandData ParseThrowData(string stringData)
        {
            return ThrowCommandParser.Parse(stringData, _gh.FreePlayerSelection(), 0); // TOOD: Player
        }

        public bool FreePlayerSelection => _gh.FreePlayerSelection();
    }
}