#include "21kHz.hpp"
#include "dsp/digital.hpp"

namespace rack_plugin_21kHz {

struct D_Inf : Module {
	enum ParamIds {
        OCTAVE_PARAM,
        COARSE_PARAM,
        HALF_SHARP_PARAM,
        INVERT_PARAM,
        GATE_PARAM,
        INVERT_TRIG_PARAM,
		NUM_PARAMS
	};
	enum InputIds {
        TRIG_INPUT,
        A_INPUT,
		NUM_INPUTS
	};
	enum OutputIds {
        A_OUTPUT,
		NUM_OUTPUTS
	};
	enum LightIds {
		NUM_LIGHTS
	};
    
    bool transpose = true;
    
    SchmittTrigger transposeTrigger;

	D_Inf() : Module(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS) {}
	void step() override;

	// For more advanced Module features, read Rack's engine.hpp header file
	// - toJson, fromJson: serialization of internal data
	// - onSampleRateChange: event triggered by a change of sample rate
	// - onReset, onRandomize, onCreate, onDelete: implements special behavior when user clicks these from the context menu
};


void D_Inf::step() {
    if (!inputs[TRIG_INPUT].active) {
        transpose = true;
    }
    else {
        if (params[GATE_PARAM].value == 0) {
            if (transposeTrigger.process(inputs[TRIG_INPUT].value)) {
                transpose = !transpose;
            }
        }
        else {
            if (inputs[TRIG_INPUT].value >= 5.0f) {
                transpose = true;
            }
            else {
                transpose = false;
            }
        }
    }
    
    float output = inputs[A_INPUT].value;
    if (transpose) {
        if (params[INVERT_PARAM].value == 1) {
            output *= -1.0f;
        }
        output += params[OCTAVE_PARAM].value + 0.083333 * params[COARSE_PARAM].value + 0.041667 * params[HALF_SHARP_PARAM].value;
    }
    else {
        if (params[INVERT_TRIG_PARAM].value == 0) {
            if (params[INVERT_PARAM].value == 1) {
                output *= -1.0f;
            }
        }
    }
    
    outputs[A_OUTPUT].value = output;
}


struct D_InfWidget : ModuleWidget {
	D_InfWidget(D_Inf *module) : ModuleWidget(module) {
		setPanel(SVG::load(assetPlugin(plugin, "res/Panels/D_Inf.svg")));

        addChild(Widget::create<kHzScrew>(Vec(RACK_GRID_WIDTH, 0)));
        addChild(Widget::create<kHzScrew>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
        
        addParam(ParamWidget::create<kHzKnobSmallSnap>(Vec(14, 40), module, D_Inf::OCTAVE_PARAM, -4, 4, 0));
        addParam(ParamWidget::create<kHzKnobSmallSnap>(Vec(14, 96), module, D_Inf::COARSE_PARAM, -7, 7, 0));
        
        addParam(ParamWidget::create<kHzButton>(Vec(10, 150), module, D_Inf::HALF_SHARP_PARAM, 0, 1, 0));
        addParam(ParamWidget::create<kHzButton>(Vec(36, 150), module, D_Inf::INVERT_PARAM, 0, 1, 0));
        
        addParam(ParamWidget::create<kHzButton>(Vec(10, 182), module, D_Inf::GATE_PARAM, 0, 1, 0));
        addParam(ParamWidget::create<kHzButton>(Vec(36, 182), module, D_Inf::INVERT_TRIG_PARAM, 0, 1, 0));
        
        addInput(Port::create<kHzPort>(Vec(17, 234), Port::INPUT, module, D_Inf::TRIG_INPUT));
        addInput(Port::create<kHzPort>(Vec(17, 276), Port::INPUT, module, D_Inf::A_INPUT));
        addOutput(Port::create<kHzPort>(Vec(17, 318), Port::OUTPUT, module, D_Inf::A_OUTPUT));
	}
};

} // namespace rack_plugin_21kHz

using namespace rack_plugin_21kHz;

RACK_PLUGIN_MODEL_INIT(21kHz, D_Inf) {
   Model *modelD_Inf = Model::create<D_Inf, D_InfWidget>("21kHz", "kHzD_Inf", "D∞ — pitch tools — 4hp", TUNER_TAG, UTILITY_TAG);
   return modelD_Inf;
}

// history
// 0.6.1
//	create