#pragma once

#include <cstdint>
#include <array>
#include <atomic>

enum class ParamId : uint16_t {
    Osc1Frequency,
    Osc1Gain,
    Osc1VolumeEnvA,
    Osc1VolumeEnvD,
    Osc1VolumeEnvS,
    Osc1VolumeEnvR,
    FilterCutoffEnvA,
    FilterCutoffEnvD,
    FilterCutoffEnvS,
    FilterCutoffEnvR,
    FilterResonanceEnvA,
    FilterResonanceEnvD,
    FilterResonanceEnvS,
    FilterResonanceEnvR,
    // ... and so on
    // this list could be like 200 long if I really wanted to
    Count // for sizing
};

enum class EnvelopeId : uint16_t {
    Osc1Volume,
    Osc2Volume,
    Osc3Volume,
    FilterCutoff,
    FilterResonance,
    Count
};

struct EnvelopeParam {
    ParamId a;
    ParamId d;
    ParamId s;
    ParamId r;
};

constexpr std::array<EnvelopeParam, static_cast<size_t>(EnvelopeId::Count)> ENV_PARAMS {{
    { ParamId::Osc1VolumeEnvA, ParamId::Osc1VolumeEnvR, ParamId::Osc1VolumeEnvS, ParamId::Osc1VolumeEnvR },   // Osc1Volume
    { ParamId::Osc1VolumeEnvA, ParamId::Osc1VolumeEnvR, ParamId::Osc1VolumeEnvS, ParamId::Osc1VolumeEnvR },   // Osc2Volume (not implemented)
    { ParamId::Osc1VolumeEnvA, ParamId::Osc1VolumeEnvR, ParamId::Osc1VolumeEnvS, ParamId::Osc1VolumeEnvR },   // Osc3Volume (not implemented)
    { ParamId::FilterCutoffEnvA, ParamId::FilterCutoffEnvR, ParamId::FilterCutoffEnvS, ParamId::FilterCutoffEnvR },   // FilterCutoff
    { ParamId::FilterResonanceEnvA, ParamId::FilterResonanceEnvR, ParamId::FilterResonanceEnvS, ParamId::FilterResonanceEnvR },   // FilterResonance

}};

struct ParamDefault {
    float def;
    float min;
    float max;
};

// TODO: make these configurable via yml file too
// later TODO: and then when I have full on profile saving there will be a default profile to load from
constexpr std::array<ParamDefault, static_cast<size_t>(ParamId::Count)> PARAM_DEFS {{
    { 100.0f, 20.0f, 600.0f},   // Osc1Freq
    { 0.8f, 0.0f, 1.0f},        // Osc1Gain
    { 0.05f, 0.0f,    2.0f},    // Osc1VolumeEnvA,
    {  0.2f, 0.0f,    2.0f},    // Osc1VolumeEnvD,
    {  0.7f, 0.0f,    1.0f},    // Osc1VolumeEnvS,
    {  0.2f, 0.0f,    2.0f},    // Osc1VolumeEnvR,
    { 10.0f, 0.0f, 1000.0f},    // FilterCutoffEnvA,
    { 10.0f, 0.0f, 1000.0f},    // FilterCutoffEnvD,
    { 10.0f, 0.0f, 1000.0f},    // FilterCutoffEnvS,
    { 10.0f, 0.0f, 1000.0f},    // FilterCutoffEnvR,
    { 10.0f, 0.0f, 1000.0f},    // FilterResonanceEnvA,
    { 10.0f, 0.0f, 1000.0f},    // FilterResonanceEnvD,
    { 10.0f, 0.0f, 1000.0f},    // FilterResonanceEnvS,
    { 10.0f, 0.0f, 1000.0f},    // FilterResonanceEnvR,
}};

constexpr size_t PARAM_COUNT = static_cast<size_t>(ParamId::Count);

class ParameterStore {

public:

    ParameterStore();
    ~ParameterStore() = default;

    void set(ParamId id, float value);
    float get(ParamId id) const;
    void resetToDefaults();

private:

    std::array<std::atomic<float>, PARAM_COUNT> values_;

};