package animate;

import flixel.FlxCamera;
import flixel.FlxG;
import flixel.FlxSprite;
import flixel.graphics.frames.FlxFrame.FlxFrameAngle;
import flixel.math.FlxAngle;
import flixel.math.FlxMath;
import flixel.math.FlxMatrix;
import flixel.math.FlxPoint;
import openfl.geom.Matrix;

class FlxSymbol extends FlxSprite
{
	public var coolParse:Parsed;
	public var oldMatrix:Array<Float> = [];

	private var hasFrameByPass:Bool = false;

	// Loop types shit
	public static inline var LOOP:String = 'LP';
	public static inline var PLAY_ONCE:String = 'PO';
	public static inline var SINGLE_FRAME:String = 'SF';

	public var firstFrame:Int = 0;

	public var daLoopType:String = 'LP'; // LP by default, is set below!!!

	public function new(x:Float, y:Float, coolParsed:Parsed)
	{
		super(x, y);

		this.coolParse = coolParsed;

		var hasSymbolDictionary:Bool = Reflect.hasField(coolParse, "SD");

		if (hasSymbolDictionary)
			symbolAtlasShit = parseSymbolDictionary(coolParse);
	}

	var symbolAtlasShit:Map<String, String> = new Map();

	public static var nestedShit:Map<Int, Array<FlxSymbol>> = new Map();

	var symbolMap:Map<String, Animation> = new Map();

	public var daFrame:Int = 0;

	public var transformMatrix:Matrix = new Matrix();

	function renderFrame(TL:Timeline, coolParsed:Parsed, ?traceShit:Bool = false)
	{
		for (layer in TL.L)
		{
			if (FlxG.keys.justPressed.TWO)
				trace(layer.LN);

			// layer.FR.reverse();

			// for (frame in layer.FR)
			// {
			var newFrameNum:Int = daFrame;

			switch (daLoopType)
			{
				case LOOP:
					var tempFrame = layer.FR[newFrameNum + firstFrame % layer.FR.length];
					// newFrameNum += firstFrame;
					// newFrameNum = newFrameNum % (tempFrame.I + tempFrame.DU);
					// newFrameNum = FlxMath.wrap(newFrameNum, tempFrame.I, tempFrame.I + tempFrame.DU);
					newFrameNum += 0; // temp, fix later for good looping
				case PLAY_ONCE:
					newFrameNum += 0;
				case SINGLE_FRAME:
					newFrameNum = firstFrame;
			}

			// trace(daLoopType);
			// trace(newFrameNum);
			// trace(layer.FR.length);

			// trace(newFrameNum % layer.FR.length);

			var swagFrame:Frame = layer.FR[newFrameNum % layer.FR.length]; // has modulo just in case????

			// if (newFrameNum >= frame.I && newFrameNum < frame.I + frame.DU)
			// {
			for (element in swagFrame.E)
			{
				if (Reflect.hasField(element, 'ASI'))
				{
					var m3d = element.ASI.M3D;
					var dumbassMatrix:Matrix = new Matrix(m3d[0], m3d[1], m3d[4], m3d[5], m3d[12], m3d[13]);

					var spr:FlxSymbol = new FlxSymbol(0, 0, coolParsed);
					matrixExposed = true;
					spr.frames = frames;
					spr.frame = spr.frames.getByName(element.ASI.N);

					// dumbassMatrix.translate(origin.x, origin.y);

					dumbassMatrix.concat(_matrix);
					spr.matrixExposed = true;
					spr.transformMatrix.concat(dumbassMatrix);
					// spr._matrix.concat(spr.transformMatrix);

					spr.origin.set();
					// Prob dont need these offset thingies???
					// spr.origin.x += origin.x;
					// spr.origin.y += origin.y;

					spr.antialiasing = true;
					// if (layer.LN != 'head')
					spr.draw();

					if (FlxG.keys.justPressed.ONE)
					{
						trace("ASI - " + layer.LN + ": " + element.ASI.N);
					}
				}
				else
				{
					var nestedSymbol = symbolMap.get(element.SI.SN);
					var nestedShit:FlxSymbol = new FlxSymbol(0, 0, coolParse);
					nestedShit.frames = frames;

					var swagMatrix:FlxMatrix = new FlxMatrix(element.SI.M3D[0], element.SI.M3D[1], element.SI.M3D[4], element.SI.M3D[5], element.SI.M3D[12],
						element.SI.M3D[13]);

					swagMatrix.concat(_matrix);

					nestedShit._matrix.concat(swagMatrix);
					nestedShit.origin.set(element.SI.TRP.x, element.SI.TRP.y);
					// nestedShit.angle += ((180 / Math.PI) * Math.atan2(swagMatrix.b, swagMatrix.a));
					// nestedShit.angle += angle;

					if (symbolAtlasShit.exists(nestedSymbol.SN))
					{
						// nestedShit.frames.getByName(symbolAtlasShit.get(nestedSymbol.SN));
						// nestedShit.draw();
					}

					// scale.y = Math.sqrt(_matrix.c * _matrix.c + _matrix.d * _matrix.d);
					// scale.x = Math.sqrt(_matrix.a * _matrix.a + _matrix.b * _matrix.b);

					// nestedShit.oldMatrix = element.SI.M3D;

					if (FlxG.keys.justPressed.ONE)
					{
						trace("SI - " + layer.LN + ": " + element.SI.SN + " - LOOP TYPE: " + element.SI.LP);
					}

					nestedShit.firstFrame = element.SI.FF;
					// nestedShit.daFrame += nestedShit.firstFrame;

					nestedShit.daLoopType = element.SI.LP;
					nestedShit.daFrame = daFrame;
					nestedShit.hasFrameByPass = true;
					nestedShit.renderFrame(nestedSymbol.TL, coolParsed);

					// renderFrame(nestedSymbol.TL, coolParsed);
				}
			}
			// }
			// }
		}
	}

	function changeFrame(frameChange:Int = 0):Void
	{
		daFrame += frameChange;
	}

	function parseSymbolDictionary(coolParsed:Parsed):Map<String, String>
	{
		var awesomeMap:Map<String, String> = new Map();
		for (symbol in coolParsed.SD.S)
		{
			symbolMap.set(symbol.SN, symbol);

			var symbolName = symbol.SN;

			// one time reverse?
			symbol.TL.L.reverse();

			for (layer in symbol.TL.L)
			{
				for (frame in layer.FR)
				{
					for (element in frame.E)
					{
						if (Reflect.hasField(element, 'ASI'))
						{
							awesomeMap.set(symbolName, element.ASI.N);
						}
					}
				}
			}
		}

		return awesomeMap;
	}

	override function drawComplex(camera:FlxCamera):Void
	{
		_frame.prepareMatrix(_matrix, FlxFrameAngle.ANGLE_0, checkFlipX(), checkFlipY());
		_matrix.translate(-origin.x, -origin.y);
		_matrix.scale(scale.x, scale.y);

		if (matrixExposed)
		{
			_matrix.concat(transformMatrix);
		}
		else
		{
			if (bakedRotationAngle <= 0)
			{
				updateTrig();

				if (angle != 0)
					_matrix.rotateWithTrig(_cosAngle, _sinAngle);
			}

			// updateSkewMatrix();
			_matrix.concat(_skewMatrix);
		}

		_point.addPoint(origin);
		if (isPixelPerfectRender(camera))
			_point.floor();

		_matrix.translate(_point.x, _point.y);
		camera.drawPixels(_frame, framePixels, _matrix, colorTransform, blend, antialiasing);
	}

	var _skewMatrix:Matrix = new Matrix();

	// public var transformMatrix(default, null):Matrix = new Matrix();

	/**
	 * Bool flag showing whether transformMatrix is used for rendering or not.
	 * False by default, which means that transformMatrix isn't used for rendering
	 */
	public var matrixExposed:Bool = false;

	public var skew(default, null):FlxPoint = FlxPoint.get();

	function updateSkewMatrix():Void
	{
		_skewMatrix.identity();

		if (skew.x != 0 || skew.y != 0)
		{
			_skewMatrix.b = Math.tan(skew.y * FlxAngle.TO_RAD);
			_skewMatrix.c = Math.tan(skew.x * FlxAngle.TO_RAD);
		}
	}
}

// TYPEDEFS FOR ANIMATION.JSON PARSING

typedef Parsed =
{
	var MD:Metadata;
	var AN:Animation;
	var SD:SymbolDictionary; // Doesn't always have symbol dictionary!!
}

typedef Metadata =
{
	/** Framerate */
	var FRT:Int;
}

/** Basically treated like one big symbol*/
typedef Animation =
{
	/** symbolName */
	var SN:String;

	var TL:Timeline;

	/** IDK what STI stands for, Symbole Type Instance?
		Anyways, it is NOT used in SYMBOLS, only the main AN animation    
	 */
	var STI:Dynamic;
}

/** DISCLAIMER, MAY NOT ACTUALLY BE CALLED
	SYMBOL TYPE ISNTANCE, IM JUST MAKING ASSUMPTION!! */
typedef SymbolTypeInstance =
{
	// var TL:Timeline;
	// var SN:String;
}

typedef SymbolDictionary =
{
	var S:Array<Animation>;
}

typedef Timeline =
{
	/** Layers */
	var L:Array<Layer>;
}

// Singular layer, not to be confused with LAYERS
typedef Layer =
{
	var LN:String;

	/** Frames */
	var FR:Array<Frame>;
}

typedef Frame =
{
	/** Frame index*/
	var I:Int;

	/** Duration, in frames*/
	var DU:Int;

	/** Elements*/
	var E:Array<Element>;
}

typedef Element =
{
	var SI:SymbolInstance;
	var ASI:AtlasSymbolInstance;
}

/**
	Symbol instance, for SYMBOLS and refers to SYMBOLS    
 */
typedef SymbolInstance =
{
	var SN:String;

	/** SymbolType (Graphic, Movieclip, Button)*/
	var ST:String;

	/** First frame*/
	var FF:Int;

	/** Loop type (Loop, play once, single frame)*/
	var LP:String;

	var TRP:TransformationPoint;
	var M3D:Array<Float>;
}

typedef AtlasSymbolInstance =
{
	var N:String;
	var M3D:Array<Float>;
}

typedef TransformationPoint =
{
	var x:Float;
	var y:Float;
}