/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
 * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

#ifndef Spine_SkeletonBinary_h
#define Spine_SkeletonBinary_h

#include <spine/TransformMode.h>
#include <spine/Vector.h>
#include <spine/SpineObject.h>
#include <spine/SpineString.h>
#include <spine/Color.h>

namespace spine {
	class SkeletonData;
	class Atlas;
	class AttachmentLoader;
	class LinkedMesh;
	class Skin;
	class Attachment;
	class VertexAttachment;
	class Animation;
	class CurveTimeline;

	class SP_API SkeletonBinary : public SpineObject {
	public:
		static const int BONE_ROTATE;
		static const int BONE_TRANSLATE;
		static const int BONE_SCALE;
		static const int BONE_SHEAR;

		static const int SLOT_ATTACHMENT;
		static const int SLOT_COLOR;
		static const int SLOT_TWO_COLOR;

		static const int PATH_POSITION;
		static const int PATH_SPACING;
		static const int PATH_MIX;

		static const int CURVE_LINEAR;
		static const int CURVE_STEPPED;
		static const int CURVE_BEZIER;

		explicit SkeletonBinary(Atlas* atlasArray);

		explicit SkeletonBinary(AttachmentLoader* attachmentLoader);

		~SkeletonBinary();

		SkeletonData* readSkeletonData(const unsigned char* binary, int length);

		SkeletonData* readSkeletonDataFile(const String& path);

		void setScale(float scale) { _scale = scale; }

		String& getError() { return _error; }

	private:
		struct DataInput : public SpineObject {
			const unsigned char* cursor;
			const unsigned char* end;
		};

		AttachmentLoader* _attachmentLoader;
		Vector<LinkedMesh*> _linkedMeshes;
		String _error;
		float _scale;
		const bool _ownsLoader;

		void setError(const char* value1, const char* value2);

		char* readString(DataInput* input);

		char* readStringRef(DataInput* input, SkeletonData* skeletonData);

		float readFloat(DataInput* input);

		unsigned char readByte(DataInput* input);

		signed char readSByte(DataInput* input);

		bool readBoolean(DataInput* input);

		int readInt(DataInput* input);

		void readColor(DataInput* input, Color& color);

		int readVarint(DataInput* input, bool optimizePositive);

		Skin* readSkin(DataInput* input, bool defaultSkin, SkeletonData* skeletonData, bool nonessential);

		Attachment* readAttachment(DataInput* input, Skin* skin, int slotIndex, const String& attachmentName, SkeletonData* skeletonData, bool nonessential);

		void readVertices(DataInput* input, VertexAttachment* attachment, int vertexCount);

		void readFloatArray(DataInput *input, int n, float scale, Vector<float>& array);

		void readShortArray(DataInput *input, Vector<unsigned short>& array);

		Animation* readAnimation(const String& name, DataInput* input, SkeletonData *skeletonData);

		void readCurve(DataInput* input, int frameIndex, CurveTimeline* timeline);
	};
}

#endif /* Spine_SkeletonBinary_h */