using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Input;
using SynthySound;
using System.Linq;
using EvilSatellites.Objects;
using DavyKager;

namespace EvilSatellites.Screens
{
    public class GameScreen : IScreen
    {
        public ScreenManager Manager { get; set; }
        public ScreenState State { get; set; }
        public List<IGameObject> Objects = new List<IGameObject>();
        private float Theta = 0;
        private Player _player;
        private ISoundEffect radarNoise;
        public void Activate()
        {
            State = ScreenState.Active;
            Player player = new Player(this);
            Objects.Add(player);
            _player = player;
            SynthyProp prop = new SynthyProp(this, new Vector3(15, 0, 15));
            Objects.Add(prop);
            radarNoise = Manager.Sound.Load(@"sfx/ui/voiceError.wav", false);
            radarNoise.Loop = true;
            radarNoise.Play();
            return;
        }

        public void Deactivate()
        {
            State = ScreenState.Hidden;
            return;
        }

        public void Update(GameTime gameTime)
        {
            foreach (var obj in Objects)
            {
                obj.Update(gameTime);
                if (obj.Type == ObjectType.Player)
                {
                    Manager.Sound.ListenerPosition = new System.Numerics.Vector3(obj.Position.X, obj.Position.Y, obj.Position.Z);
                    Manager.Sound.ListenerOrientationForward = System.Numerics.Vector3.Normalize(new System.Numerics.Vector3(obj.Rotation.Forward.X, obj.Rotation.Forward.Y, obj.Rotation.Forward.Z));
                    Manager.Sound.ListenerOrientationUpwards = System.Numerics.Vector3.Normalize(new System.Numerics.Vector3(obj.Rotation.Up.X, obj.Rotation.Up.Y, obj.Rotation.Up.Z));
                    Manager.Listener.Position = obj.Position;
                    Manager.Listener.Forward = obj.Rotation.Forward;
                    Manager.Listener.Up = obj.Rotation.Up;
                }
            }
            Vector3 radarTarget = (Objects[1].Position - _player.Position);
            radarTarget.Normalize();
            radarNoise.Pitch = MathHelper.Clamp(0.1f / Vector3.Distance(_player.Rotation.Forward, radarTarget)*3f, 0, 1);
            return;
        }

        public void HandleInput(GameTime gameTime, KeyboardState inputs)
        {
            if (inputs.IsKeyDown(Keys.W))
            {
                _player.Accelerate();
            }
            if (inputs.IsKeyDown(Keys.Left))
            {
                _player.RotateY(0.05f);
            }
            if (inputs.IsKeyDown(Keys.Right))
            {
                _player.RotateY(-0.05f);
            }
            if (inputs.IsKeyDown(Keys.Up))
            {
                _player.RotateX(0.05f);
            }
            if (inputs.IsKeyDown(Keys.Down))
            {
                _player.RotateX(-0.05f);
            }
            if (inputs.IsKeyDown(Keys.V))
            {
                Tolk.Speak(_player.Movement.Length().ToString(), true);
            }
            if (inputs.IsKeyDown(Keys.X))
            {
                Tolk.Speak(radarNoise.Pitch.ToString(), true);
            }
            if (inputs.IsKeyDown(Keys.C))
            {
                Tolk.Speak(_player.Position.ToString());
            }
        }

    }
}