/******************************************************************************
 * 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.
 *****************************************************************************/

#include <spine/SkeletonAnimation.h>
#include <spine/spine-cocos2dx.h>
#include <spine/Extension.h>
#include <algorithm>

USING_NS_CC;
using std::min;
using std::max;
using std::vector;

namespace spine {

typedef struct _TrackEntryListeners {
	StartListener startListener;
	InterruptListener interruptListener;
	EndListener endListener;
	DisposeListener disposeListener;
	CompleteListener completeListener;
	EventListener eventListener;
} _TrackEntryListeners;

void animationCallback (AnimationState* state, EventType type, TrackEntry* entry, Event* event) {
	((SkeletonAnimation*)state->getRendererObject())->onAnimationStateEvent(entry, type, event);
}

void trackEntryCallback (AnimationState* state, EventType type, TrackEntry* entry, Event* event) {
	((SkeletonAnimation*)state->getRendererObject())->onTrackEntryEvent(entry, type, event);
	if (type == EventType_Dispose) {
		if (entry->getRendererObject()) {
			delete (spine::_TrackEntryListeners*)entry->getRendererObject();
			entry->setRendererObject(NULL);
		}
	}
}

static _TrackEntryListeners* getListeners (TrackEntry* entry) {
	if (!entry->getRendererObject()) {
		entry->setRendererObject(new spine::_TrackEntryListeners());
		entry->setListener(trackEntryCallback);
	}
	return (_TrackEntryListeners*)entry->getRendererObject();
}

//

SkeletonAnimation* SkeletonAnimation::createWithData (SkeletonData* skeletonData, bool ownsSkeletonData) {
	SkeletonAnimation* node = new SkeletonAnimation();
	node->initWithData(skeletonData, ownsSkeletonData);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithJsonFile (const std::string& skeletonJsonFile, Atlas* atlas, float scale) {
	SkeletonAnimation* node = new SkeletonAnimation();
	node->initWithJsonFile(skeletonJsonFile, atlas, scale);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithJsonFile (const std::string& skeletonJsonFile, const std::string& atlasFile, float scale) {
	SkeletonAnimation* node = new SkeletonAnimation();
	node->initWithJsonFile(skeletonJsonFile, atlasFile, scale);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithBinaryFile (const std::string& skeletonBinaryFile, Atlas* atlas, float scale) {
	SkeletonAnimation* node = new SkeletonAnimation();
	node->initWithBinaryFile(skeletonBinaryFile, atlas, scale);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithBinaryFile (const std::string& skeletonBinaryFile, const std::string& atlasFile, float scale) {
	SkeletonAnimation* node = new SkeletonAnimation();
	node->initWithBinaryFile(skeletonBinaryFile, atlasFile, scale);
	node->autorelease();
	return node;
}


void SkeletonAnimation::initialize () {
	super::initialize();

	_ownsAnimationStateData = true;
	_updateOnlyIfVisible = false;
	_state = new (__FILE__, __LINE__) AnimationState(new (__FILE__, __LINE__) AnimationStateData(_skeleton->getData()));
	_state->setRendererObject(this);
	_state->setListener(animationCallback);

	_firstDraw = true;
}

SkeletonAnimation::SkeletonAnimation ()
		: SkeletonRenderer() {
}

SkeletonAnimation::~SkeletonAnimation () {
	if (_ownsAnimationStateData) delete _state->getData();
	delete _state;
}

void SkeletonAnimation::update (float deltaTime) {
	if (_updateOnlyIfVisible && !isVisible()) return;

	super::update(deltaTime);

	deltaTime *= _timeScale;
	if (_preUpdateListener) _preUpdateListener(this);
	_state->update(deltaTime);
	_state->apply(*_skeleton);
	_skeleton->updateWorldTransform();
	if (_postUpdateListener) _postUpdateListener(this);
}

void SkeletonAnimation::draw(cocos2d::Renderer *renderer, const cocos2d::Mat4 &transform, uint32_t transformFlags) {
	if (_firstDraw) {
		_firstDraw = false;
		update(0);
	}
	super::draw(renderer, transform, transformFlags);
}

void SkeletonAnimation::setAnimationStateData (AnimationStateData* stateData) {
	CCASSERT(stateData, "stateData cannot be null.");

	if (_ownsAnimationStateData) delete _state->getData();
	delete _state;

	_ownsAnimationStateData = false;
	_state = new (__FILE__, __LINE__) AnimationState(stateData);
	_state->setRendererObject(this);
	_state->setListener(animationCallback);
}

void SkeletonAnimation::setMix (const std::string& fromAnimation, const std::string& toAnimation, float duration) {
	_state->getData()->setMix(fromAnimation.c_str(), toAnimation.c_str(), duration);
}

TrackEntry* SkeletonAnimation::setAnimation (int trackIndex, const std::string& name, bool loop) {
	Animation* animation = _skeleton->getData()->findAnimation(name.c_str());
	if (!animation) {
		log("Spine: Animation not found: %s", name.c_str());
		return 0;
	}
	return _state->setAnimation(trackIndex, animation, loop);
}

TrackEntry* SkeletonAnimation::addAnimation (int trackIndex, const std::string& name, bool loop, float delay) {
	Animation* animation = _skeleton->getData()->findAnimation(name.c_str());
	if (!animation) {
		log("Spine: Animation not found: %s", name.c_str());
		return 0;
	}
	return _state->addAnimation(trackIndex, animation, loop, delay);
}

TrackEntry* SkeletonAnimation::setEmptyAnimation (int trackIndex, float mixDuration) {
	return _state->setEmptyAnimation(trackIndex, mixDuration);
}

void SkeletonAnimation::setEmptyAnimations (float mixDuration) {
	_state->setEmptyAnimations(mixDuration);
}

TrackEntry* SkeletonAnimation::addEmptyAnimation (int trackIndex, float mixDuration, float delay) {
	return _state->addEmptyAnimation(trackIndex, mixDuration, delay);
}

Animation* SkeletonAnimation::findAnimation(const std::string& name) const {
	return _skeleton->getData()->findAnimation(name.c_str());
}

TrackEntry* SkeletonAnimation::getCurrent (int trackIndex) {
	return _state->getCurrent(trackIndex);
}

void SkeletonAnimation::clearTracks () {
	_state->clearTracks();
}

void SkeletonAnimation::clearTrack (int trackIndex) {
	_state->clearTrack(trackIndex);
}

void SkeletonAnimation::onAnimationStateEvent (TrackEntry* entry, EventType type, Event* event) {
	switch (type) {
	case EventType_Start:
		if (_startListener) _startListener(entry);
		break;
	case EventType_Interrupt:
		if (_interruptListener) _interruptListener(entry);
		break;
	case EventType_End:
		if (_endListener) _endListener(entry);
		break;
	case EventType_Dispose:
		if (_disposeListener) _disposeListener(entry);
		break;
	case EventType_Complete:
		if (_completeListener) _completeListener(entry);
		break;
	case EventType_Event:
		if (_eventListener) _eventListener(entry, event);
		break;
	}
}

void SkeletonAnimation::onTrackEntryEvent (TrackEntry* entry, EventType type, Event* event) {
	if (!entry->getRendererObject()) return;
	_TrackEntryListeners* listeners = (_TrackEntryListeners*)entry->getRendererObject();
	switch (type) {
	case EventType_Start:
		if (listeners->startListener) listeners->startListener(entry);
		break;
	case EventType_Interrupt:
		if (listeners->interruptListener) listeners->interruptListener(entry);
		break;
	case EventType_End:
		if (listeners->endListener) listeners->endListener(entry);
		break;
	case EventType_Dispose:
		if (listeners->disposeListener) listeners->disposeListener(entry);
		break;
	case EventType_Complete:
		if (listeners->completeListener) listeners->completeListener(entry);
		break;
	case EventType_Event:
		if (listeners->eventListener) listeners->eventListener(entry, event);
		break;
	}
}

void SkeletonAnimation::setStartListener (const StartListener& listener) {
	_startListener = listener;
}

void SkeletonAnimation::setInterruptListener (const InterruptListener& listener) {
	_interruptListener = listener;
}

void SkeletonAnimation::setEndListener (const EndListener& listener) {
	_endListener = listener;
}

void SkeletonAnimation::setDisposeListener (const DisposeListener& listener) {
	_disposeListener = listener;
}

void SkeletonAnimation::setCompleteListener (const CompleteListener& listener) {
	_completeListener = listener;
}

void SkeletonAnimation::setEventListener (const EventListener& listener) {
	_eventListener = listener;
}

void SkeletonAnimation::setPreUpdateWorldTransformsListener(const UpdateWorldTransformsListener &listener) {
	_preUpdateListener = listener;
}

void SkeletonAnimation::setPostUpdateWorldTransformsListener(const UpdateWorldTransformsListener &listener) {
	_postUpdateListener = listener;
}

void SkeletonAnimation::setTrackStartListener (TrackEntry* entry, const StartListener& listener) {
	getListeners(entry)->startListener = listener;
}

void SkeletonAnimation::setTrackInterruptListener (TrackEntry* entry, const InterruptListener& listener) {
	getListeners(entry)->interruptListener = listener;
}

void SkeletonAnimation::setTrackEndListener (TrackEntry* entry, const EndListener& listener) {
	getListeners(entry)->endListener = listener;
}

void SkeletonAnimation::setTrackDisposeListener (TrackEntry* entry, const DisposeListener& listener) {
	getListeners(entry)->disposeListener = listener;
}

void SkeletonAnimation::setTrackCompleteListener (TrackEntry* entry, const CompleteListener& listener) {
	getListeners(entry)->completeListener = listener;
}

void SkeletonAnimation::setTrackEventListener (TrackEntry* entry, const EventListener& listener) {
	getListeners(entry)->eventListener = listener;
}

AnimationState* SkeletonAnimation::getState() const {
	return _state;
}

void SkeletonAnimation::setUpdateOnlyIfVisible(bool status) {
	_updateOnlyIfVisible = status;
}

}