/******************************************************************************
 * Spine Runtime Software License - Version 1.1
 * 
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms in whole or in part, with
 * or without modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. A Spine Essential, Professional, Enterprise, or Education License must
 *    be purchased from Esoteric Software and the license must remain valid:
 *    http://esotericsoftware.com/
 * 2. Redistributions of source code must retain this license, which is the
 *    above copyright notice, this declaration of conditions and the following
 *    disclaimer.
 * 3. Redistributions in binary form must reproduce this license, which is the
 *    above copyright notice, this declaration of conditions and the following
 *    disclaimer, in the documentation and/or other materials provided with the
 *    distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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 THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

#include <spine/CCSkeletonAnimation.h>
#include <spine/extension.h>
#include <spine/spine-cocos2dx.h>

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

namespace spine {

static void callback (spAnimationState* state, int trackIndex, spEventType type, spEvent* event, int loopCount) {
	((SkeletonAnimation*)state->context)->onAnimationStateEvent(trackIndex, type, event, loopCount);
}

SkeletonAnimation* SkeletonAnimation::createWithData (spSkeletonData* skeletonData) {
	SkeletonAnimation* node = new (std::nothrow) SkeletonAnimation(skeletonData);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithFile (const char* skeletonDataFile, spAtlas* atlas, float scale) {
	SkeletonAnimation* node = new (std::nothrow) SkeletonAnimation(skeletonDataFile, atlas, scale);
	node->autorelease();
	return node;
}

SkeletonAnimation* SkeletonAnimation::createWithFile (const char* skeletonDataFile, const char* atlasFile, float scale) {
	SkeletonAnimation* node = new (std::nothrow) SkeletonAnimation(skeletonDataFile, atlasFile, scale);
	node->autorelease();
	return node;
}

void SkeletonAnimation::initialize () {
	listenerInstance = 0;
	listenerMethod = 0;

	ownsAnimationStateData = true;
	state = spAnimationState_create(spAnimationStateData_create(skeleton->data));
	state->context = this;
	state->listener = callback;
}

SkeletonAnimation::SkeletonAnimation (spSkeletonData *skeletonData)
		: Skeleton(skeletonData) {
	initialize();
}

SkeletonAnimation::SkeletonAnimation (const char* skeletonDataFile, spAtlas* atlas, float scale)
		: Skeleton(skeletonDataFile, atlas, scale) {
	initialize();
}

SkeletonAnimation::SkeletonAnimation (const char* skeletonDataFile, const char* atlasFile, float scale)
		: Skeleton(skeletonDataFile, atlasFile, scale) {
	initialize();
}

SkeletonAnimation::~SkeletonAnimation () {
	if (ownsAnimationStateData) spAnimationStateData_dispose(state->data);
	spAnimationState_dispose(state);
}

void SkeletonAnimation::update (float deltaTime) {
	super::update(deltaTime);

	deltaTime *= timeScale;
	spAnimationState_update(state, deltaTime);
	spAnimationState_apply(state, skeleton);
	spSkeleton_updateWorldTransform(skeleton);
}

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

	if (ownsAnimationStateData) spAnimationStateData_dispose(state->data);
	spAnimationState_dispose(state);

	ownsAnimationStateData = false;
	state = spAnimationState_create(stateData);
	state->context = this;
	state->listener = callback;
}

void SkeletonAnimation::setMix (const char* fromAnimation, const char* toAnimation, float duration) {
	spAnimationStateData_setMixByName(state->data, fromAnimation, toAnimation, duration);
}

void SkeletonAnimation::setAnimationListener (Ref* instance, SEL_AnimationStateEvent method) {
	listenerInstance = instance;
	listenerMethod = method;
}

spTrackEntry* SkeletonAnimation::setAnimation (int trackIndex, const char* name, bool loop) {
	spAnimation* animation = spSkeletonData_findAnimation(skeleton->data, name);
	if (!animation) {
		log("Spine: Animation not found: %s", name);
		return 0;
	}
	return spAnimationState_setAnimation(state, trackIndex, animation, loop);
}

spTrackEntry* SkeletonAnimation::addAnimation (int trackIndex, const char* name, bool loop, float delay) {
	spAnimation* animation = spSkeletonData_findAnimation(skeleton->data, name);
	if (!animation) {
		log("Spine: Animation not found: %s", name);
		return 0;
	}
	return spAnimationState_addAnimation(state, trackIndex, animation, loop, delay);
}

spTrackEntry* SkeletonAnimation::getCurrent (int trackIndex) { 
	return spAnimationState_getCurrent(state, trackIndex);
}

void SkeletonAnimation::clearTracks () {
	spAnimationState_clearTracks(state);
}

void SkeletonAnimation::clearTrack (int trackIndex) {
	spAnimationState_clearTrack(state, trackIndex);
}

void SkeletonAnimation::onAnimationStateEvent (int trackIndex, spEventType type, spEvent* event, int loopCount) {
	if (listenerInstance) (listenerInstance->*listenerMethod)(this, trackIndex, type, event, loopCount);
}

}