using System;
using Sandbox;
using Sandbox.Citizen;

public partial class Boss
{
	protected float _barrageDelayTimer;
	protected float _barrageDelayMin;
	protected float _barrageDelayMax;

	private TimeSince _timeSinceBarrageShoot;

	private BarrageType _barrageType;
	private float _barrageEmitDelay;

	private int _barrageEmitNum;

	private float _barrageTotalTime;

	private enum BarrageType
	{
		Acid,
		Burning,
		Freezing,
	}

	void InitBarrage()
	{
		if ( IsProxy )
			return;

		_barrageDelayMin = 10f;
		_barrageDelayMax = 25f;

		_barrageDelayTimer = Game.Random.Float( _barrageDelayMin, _barrageDelayMax ) * Utils.Select( Manager.Instance.Difficulty, 1.45f, 1f, 0.9f );
	}

	void HandleBarrage()
	{
		if ( !IsReadyForAction || !TargetUnit.IsValid() )
			return;

		if( HpPercent > Utils.Select( Manager.Instance.Difficulty, 0.2f, 0.3f, 0.85f ) )
			return;

		var targetDistSqr = (TargetUnit.Position2D - Position2D).LengthSquared;

		if ( targetDistSqr < MathF.Pow( 800f, 2f ) )
		{
			_barrageDelayTimer -= Time.Delta * TimeScale;
			if ( _barrageDelayTimer < 0f )
				SetState( BossState.BarragePrepare );
		}
	}

	[Rpc.Broadcast]
	protected void StartBarrageRpc()
	{
		SetAnim( "SummonPrepare" );

		//AnimationHelper.HoldType = CitizenAnimationHelper.HoldTypes.RPG;
		//AnimationHelper.WithLook( Vector3.Up );

		Manager.Instance.PlaySfxNearby( "boss.prepare", Position2D, pitch: Game.Random.Float( 0.75f, 0.85f ), volume: 1.4f, maxDist: 500f );

		if ( IsProxy )
			return;

		_barrageEmitNum = 0;
		_timeSinceBarrageShoot = 0f;

		var rand = Game.Random.Float( 0f, 1f );
		if ( rand < 0.35f )
			_barrageType = BarrageType.Acid;
		else if ( rand < 0.7f )
			_barrageType = BarrageType.Burning;
		else
			_barrageType = BarrageType.Freezing;

		switch ( _barrageType )
		{
			case BarrageType.Acid:
				_barrageEmitDelay = Game.Random.Float( 0.2f, 0.4f );
				_barrageTotalTime = Game.Random.Float( 2.8f, 3.2f ) * Utils.Map( HpPercent, 1f, 0f, 1f, 1.33f, EasingType.Linear );
				break;
			case BarrageType.Burning:
				_barrageEmitDelay = Game.Random.Float( 0.4f, 0.5f );
				_barrageTotalTime = Game.Random.Float( 2.8f, 3.2f ) * Utils.Map( HpPercent, 1f, 0f, 1f, 1.33f, EasingType.Linear );
				break;
			case BarrageType.Freezing:
				_barrageEmitDelay = Game.Random.Float( 0.4f, 0.5f );
				_barrageTotalTime = Game.Random.Float( 3.2f, 3.5f ) * Utils.Map( HpPercent, 1f, 0f, 1f, 1.33f, EasingType.Linear );
				break;
		}

		_barrageEmitDelay *= Utils.Select( Manager.Instance.Difficulty, 1.1f, 1f, 0.9f );
		_barrageTotalTime *= Utils.Select( Manager.Instance.Difficulty, 0.85f, 1f, 1.1f );
	}

	[Rpc.Broadcast]
	protected void BarrageRpc()
	{
		//AnimationHelper.Target.Set( "b_attack", true );

		if ( IsProxy )
			return;
	}

	[Rpc.Broadcast]
	protected void BarrageEmitRpc()
	{
		SetAnim( "Summon" );

		Manager.Instance.PlaySfxNearby( "boss.shoot", Position2D, pitch: Utils.Map( _barrageEmitNum, 0, 10, 0.3f, 0.4f, EasingType.SineOut), volume: 0.8f, maxDist: 600f );

		//AnimationHelper.Target.Set( "b_attack", true );

		if ( IsProxy )
			return;

		var dir = Utils.GetRandomVector();

		int numBullets = 0;
		var lifetimeModMin = 1f;
		var lifetimeModMax = 1f;
		var projectileType = EnemyProjectileType.Normal;
		var startVelMin = 300f;
		var startVelMax = 300f;

		switch (_barrageType)
		{
			case BarrageType.Acid:
				projectileType = EnemyProjectileType.Acid;
				//numBullets = MathX.FloorToInt( Utils.Map( HpPercent, 1f, 0f, 10f, 12f, EasingType.SineIn ) ) + Game.Random.Int( 0, 1 );
				numBullets = MathX.FloorToInt( Utils.Map( HpPercent, 1f, 0f, 8f, 10f, EasingType.SineIn ) * Utils.Select( Manager.Instance.Difficulty, 0.65f, 1f, 1.1f ) ) + (_barrageEmitNum % 2 == 0 ? 0 : 1);
				lifetimeModMin = 0.05f + _barrageEmitNum * 0.05f;
				lifetimeModMax = lifetimeModMin + 0.05f;
				_barrageEmitDelay = Game.Random.Float(0.5f, 0.6f);
				startVelMin = startVelMax = 350f;
				break;
			case BarrageType.Burning:
				projectileType = EnemyProjectileType.Fire;
				numBullets = MathX.FloorToInt( Utils.Map( HpPercent, 1f, 0f, 4f, 6f, EasingType.SineIn ) * Utils.Select( Manager.Instance.Difficulty, 0.65f, 1f, 1.1f ) ) + _barrageEmitNum;
				lifetimeModMin = 0.06f + _barrageEmitNum * 0.04f;
				lifetimeModMax = lifetimeModMin + 0.04f;
				_barrageEmitDelay = Game.Random.Float( 0.75f, 0.9f );
				startVelMin = startVelMax = 330f;
				break;
			case BarrageType.Freezing:
				projectileType = EnemyProjectileType.Freeze;
				numBullets = MathX.FloorToInt( Utils.Map( HpPercent, 1f, 0f, 8f, 11f, EasingType.SineIn ) * Utils.Select( Manager.Instance.Difficulty, 0.65f, 1f, 1.1f ) ) + Game.Random.Int(-1, 5);
				//lifetimeModifier = 1f;
				_barrageEmitDelay = Game.Random.Float( 0.6f, 0.75f );
				startVelMin = 240f;
				startVelMax = 320f;
				lifetimeModMin = 0.1f;
				lifetimeModMax = 0.4f;
				break;
		}

		Manager.Instance.SpawnEnemyProjectileRing( Position2D, numBullets, shooter: this, enemyType: this.EnemyType, startVelMin, startVelMax, lifetimeModMin, lifetimeModMax, projectileType );

		_barrageEmitNum++;
	}
}