/*
  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 __FrequencyCurve_layered_H__
#define __FrequencyCurve_layered_H__
#ifdef __cplusplus
extern "C" {
#endif

typedef struct FrequencyCurve_layered FrequencyCurve_layered;
#define FrequencyCurve_layered_superclass FrequencyCurve

#include "audiosynth/FrequencyCurve.h"

typedef enum FrequencyCurve_layered_blendMode {
	FrequencyCurve_layered_add,
	FrequencyCurve_layered_average,
	FrequencyCurve_layered_min,
	FrequencyCurve_layered_max
} FrequencyCurve_layered_blendMode;

struct FrequencyCurve_layered_layer {
	FrequencyCurve * curve;
	float blend;
	bool mute;
	bool solo;
};

#define FrequencyCurve_layered_ivars \
	FrequencyCurve_ivars \
	\
	FrequencyCurve_layered_blendMode blendMode; \
	unsigned int layerCount; \
	struct FrequencyCurve_layered_layer * layers;

#define FrequencyCurve_layered_vtable(self_type) \
	FrequencyCurve_vtable(self_type)

stemobject_declare(FrequencyCurve_layered)

// Takes ownership of all contents of layers
FrequencyCurve_layered * FrequencyCurve_layered_create(float baseValue, FrequencyCurve_layered_blendMode blendMode, unsigned int layerCount, struct FrequencyCurve_layered_layer * layers);
bool FrequencyCurve_layered_init(FrequencyCurve_layered * self, float baseValue, FrequencyCurve_layered_blendMode blendMode, unsigned int layerCount, struct FrequencyCurve_layered_layer * layers);
void FrequencyCurve_layered_dispose(FrequencyCurve_layered * self);

FrequencyCurve_layered * FrequencyCurve_layered_copy(FrequencyCurve_layered * self);
bool FrequencyCurve_layered_isEqual(FrequencyCurve_layered * self, compat_type(FrequencyCurve_layered *) compare);
uint32_t FrequencyCurve_layered_hash(FrequencyCurve_layered * self, uint32_t initval);
void FrequencyCurve_layered_initCopy(FrequencyCurve_layered * self, FrequencyCurve_layered * original);
// Layer list must not be mutated between initializing and disposing state
SamplerObject_state * FrequencyCurve_layered_initState(FrequencyCurve_layered * self);
void FrequencyCurve_layered_disposeState(FrequencyCurve_layered * self, SamplerObject_state * state);
unsigned int FrequencyCurve_layered_getPropertyCount(FrequencyCurve_layered * self);
SynthProperty FrequencyCurve_layered_getPropertyAtIndex(FrequencyCurve_layered * self, unsigned int index);
float FrequencyCurve_layered_getPropertyValueStateless(FrequencyCurve_layered * self, SynthPropertyIdentifier propertyIdentifier);
void FrequencyCurve_layered_setPropertyValue(FrequencyCurve_layered * self, SamplerObject_state * state, SynthPropertyIdentifier propertyIdentifier, float value);
float FrequencyCurve_layered_sample(FrequencyCurve_layered * self, SamplerObject_state * state, float phase, float phaseDelta, float time, float timeDelta);

// Takes ownership of layer
void FrequencyCurve_layered_addLayer(FrequencyCurve_layered * self, struct FrequencyCurve_layered_layer layer);
void FrequencyCurve_layered_removeLayer(FrequencyCurve_layered * self, unsigned int layerIndex);

#ifdef __cplusplus
}
#endif
#endif