/*
  Copyright (c) 2021 Alex Diener
  
  This software is provided 'as-is', without any express or implied
  warranty. In no event will the authors be held liable for any damages
  arising from the use of this software.
  
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
  
  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
  
  Alex Diener alex@ludobloom.com
*/

#ifndef __AmplitudeEnvelope_layered_H__
#define __AmplitudeEnvelope_layered_H__
#ifdef __cplusplus
extern "C" {
#endif

typedef struct AmplitudeEnvelope_layered AmplitudeEnvelope_layered;
#define AmplitudeEnvelope_layered_superclass AmplitudeEnvelope

#include "audiosynth/AmplitudeEnvelope.h"

typedef enum AmplitudeEnvelope_layered_blendMode {
	AmplitudeEnvelope_layered_add,
	AmplitudeEnvelope_layered_multiply,
	AmplitudeEnvelope_layered_average,
	AmplitudeEnvelope_layered_min,
	AmplitudeEnvelope_layered_max
} AmplitudeEnvelope_layered_blendMode;

struct AmplitudeEnvelope_layered_layer {
	AmplitudeEnvelope * envelope;
	float blend;
	bool mute;
	bool solo;
};

#define AmplitudeEnvelope_layered_ivars \
	AmplitudeEnvelope_ivars \
	\
	AmplitudeEnvelope_layered_blendMode blendMode; \
	unsigned int layerCount; \
	struct AmplitudeEnvelope_layered_layer * layers;

#define AmplitudeEnvelope_layered_vtable(self_type) \
	AmplitudeEnvelope_vtable(self_type)

stemobject_declare(AmplitudeEnvelope_layered)

// Takes ownership of all contents of layers
AmplitudeEnvelope_layered * AmplitudeEnvelope_layered_create(float baseAmplitude, AmplitudeEnvelope_layered_blendMode blendMode, unsigned int layerCount, struct AmplitudeEnvelope_layered_layer * layers);
bool AmplitudeEnvelope_layered_init(AmplitudeEnvelope_layered * self, float baseAmplitude, AmplitudeEnvelope_layered_blendMode blendMode, unsigned int layerCount, struct AmplitudeEnvelope_layered_layer * layers);
void AmplitudeEnvelope_layered_dispose(AmplitudeEnvelope_layered * self);

AmplitudeEnvelope_layered * AmplitudeEnvelope_layered_copy(AmplitudeEnvelope_layered * self);
bool AmplitudeEnvelope_layered_isEqual(AmplitudeEnvelope_layered * self, compat_type(AmplitudeEnvelope_layered *) compare);
uint32_t AmplitudeEnvelope_layered_hash(AmplitudeEnvelope_layered * self, uint32_t initval);
void AmplitudeEnvelope_layered_initCopy(AmplitudeEnvelope_layered * self, AmplitudeEnvelope_layered * original);
// Layer list must not be mutated between initializing and disposing state
SamplerObject_state * AmplitudeEnvelope_layered_initState(AmplitudeEnvelope_layered * self);
void AmplitudeEnvelope_layered_disposeState(AmplitudeEnvelope_layered * self, SamplerObject_state * state);
float AmplitudeEnvelope_layered_getLength(AmplitudeEnvelope_layered * self);
unsigned int AmplitudeEnvelope_layered_getPropertyCount(AmplitudeEnvelope_layered * self);
SynthProperty AmplitudeEnvelope_layered_getPropertyAtIndex(AmplitudeEnvelope_layered * self, unsigned int index);
float AmplitudeEnvelope_layered_getPropertyValueStateless(AmplitudeEnvelope_layered * self, SynthPropertyIdentifier propertyIdentifier);
void AmplitudeEnvelope_layered_setPropertyValue(AmplitudeEnvelope_layered * self, SamplerObject_state * state, SynthPropertyIdentifier propertyIdentifier, float value);
float AmplitudeEnvelope_layered_sample(AmplitudeEnvelope_layered * self, SamplerObject_state * state, float phase, float phaseDelta, float time, float timeDelta);

// Takes ownership of layer
void AmplitudeEnvelope_layered_addLayer(AmplitudeEnvelope_layered * self, struct AmplitudeEnvelope_layered_layer layer);
void AmplitudeEnvelope_layered_removeLayer(AmplitudeEnvelope_layered * self, unsigned int layerIndex);

#ifdef __cplusplus
}
#endif
#endif