using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SynthySound;
using EvilSatellites.Screens;
using Microsoft.Xna.Framework;

namespace EvilSatellites.Objects
{
    public class Satellite : AbstractGameObject
    {
        private ISoundEffect3D Sound;
        private int Health;
        private int SatelliteID;
        private Random rnd = new Random();
        private Matrix FlightPath;
        public Satellite(IScreen screen, Vector3 pos, int satelliteID = 1) : base(screen)
        {
            Type = ObjectType.Satellite;
            SatelliteID = satelliteID;
            Sound = Screen.Manager.Sound.Load3D(@"sfx/satellite/"+SatelliteID.ToString()+"/loop.wav");
            Sound.Loop = true;
            Sound.Pitch = 0.9 + rnd.NextDouble()*0.5;
            Position = pos;
            Dimensions = new Vector3(5, 5, 5);
            Sound.Position = new System.Numerics.Vector3(pos.X, pos.Y, pos.Z);
            Sound.ConnectToEffect(Screen.Manager.EnvironmentEffect);
            FlightPath = Matrix.CreateFromAxisAngle(Rotation.Right, (float)rnd.NextDouble()*0.1f);
            Rotation = FlightPath;
            Activate();
        }

        public override void Activate()
        {
            Sound.Play();
            Active = true;
            ShouldDestroy = false;
            Health = 100;
        }
        public override void Destroy()
        {
            Sound.Destroy();
            ShouldDestroy = true;
            Active = false;
        }

        override public void Update(GameTime gameTime)
        {
            Move(new Vector3(0, 0, -0.05f));
            Sound.Position = new System.Numerics.Vector3(Position.X+Dimensions.X/2, Position.Y+Dimensions.Y/2, Position.Z+Dimensions.Z/2);
            if (rnd.Next(1024) == 512)
            {
                var scr = (GameScreen)Screen;
                var player = scr.GetPlayer();
                var orient = Matrix.Invert(Matrix.CreateTranslation(Position) * Matrix.CreateLookAt(Position, scr.GetPlayer().Position, Rotation.Up));
                var dir = Position - player.Position;
                dir.Normalize();
                Screen.Manager.Sound.PlayOneshot(@"sfx/weapons/LaserCannon/fire/" + (rnd.Next(2) + 1).ToString() + ".wav", new System.Numerics.Vector3(Position.X + Dimensions.X / 2, Position.Y + Dimensions.Y / 2, Position.Z / Dimensions.Z / 2), Screen.Manager.EnvironmentEffect);
                var proj = new Projectile(Screen, Position, orient, this);
                // proj.Direction = dir;
                scr.AddObject(proj);
            }
        }

        public override void OnCollision(IGameObject obj)
        {
            if (obj.Type == ObjectType.Projectile)
            {
                var proj = (Projectile)obj;
                if (proj.Owner == this) return;
                var scr = (GameScreen)Screen;
                if (proj.Owner == scr.GetPlayer())
                {
                    scr.Manager.Computer.Play("Hit");
                }
            }
            Health -= 10;
            if (obj.Type == ObjectType.Player)
            {
                var player = (Player)obj;
                player.TakeDamage(66);
                Destroy();
            }
            if (Health <= 0)
            {
                Screen.Manager.Sound.PlayOneshot(@"sfx/satellite/"+SatelliteID.ToString()+"/explode.wav", new System.Numerics.Vector3(Position.X, Position.Y, Position.Z));
                SpawnDebris();
                Destroy();
                GameStats.SatellitesShot++;
            }
        }

        public void SpawnDebris()
        {
            var amount = rnd.Next(3) + 1;
            for (var i = 0; i < amount; i++)
            {
                var screen = (GameScreen)Screen;
                screen.AddObject(new Debris(screen, Position));
            }
        }
    }
}