using Penguloon.Enemies;
using System;
using System.Collections.Generic;
using System.Threading;

namespace Penguloon.Levels
{
    public class WaveManager
    {
        public List<Wave> Waves { get; set; } = new List<Wave>();

        public Map Map { get; set; }

        public int CurrentWave { get; set; } = 1;

        public bool RoundActive { get; set; }

        public bool DoneSpawning { get; set; } = false;

        public WaveManager(Map map)
        {
            this.Map = map;

            CreateWaves();
        }

        private void CreateWaves()
        {
            Waves.Add(new Wave(new List<Tuple<Type, int>>() { new Tuple<Type, int>(typeof(BlueBalloon), 250) }, 50));
            Waves.Add(new Wave(new List<Tuple<Type, int>>() { new Tuple<Type, int>(typeof(RedBalloon), 10) }, 500));
        }

        public void StartSpawningEnemies()
        {
            RoundActive = true;
            DoneSpawning = false;

            new Thread(() =>
            {
                Thread.CurrentThread.IsBackground = true;

                int waveToSpawn = CurrentWave - 1;

                if (waveToSpawn >= Waves.Count)
                    waveToSpawn = Waves.Count - 1;

                for (int i = 0; i < Waves[waveToSpawn].EnemiesToSpawn.Count; i++)
                {
                    for(int x = 0; x < Waves[waveToSpawn].EnemiesToSpawn[i].Item2; x++)
                    {
                        Map.SpawnEnemy(Waves[waveToSpawn].EnemiesToSpawn[i].Item1);
                        Thread.Sleep(Waves[waveToSpawn].SpawnDelayMS);
                    }
                }

                DoneSpawning = true;

            }).Start();
        }

        internal void FinishRound()
        {
            CurrentWave++;
        }
    }

    public class Wave
    {
        public int SpawnDelayMS { get; set; }
        public List<Tuple<Type, int>> EnemiesToSpawn { get; set; } = new List<Tuple<Type, int>>();

        public Wave(List<Tuple<Type, int>> EnemiesToSpawn, int SpawnDelayMS)
        {
            this.SpawnDelayMS = SpawnDelayMS;
            this.EnemiesToSpawn = EnemiesToSpawn;
        }
    }
}