#include "audio_effects.h"

static AudioEffectsParams g_params;

static FxOctaverState    g_octaverState;
static FxEqualizerState  g_eqState;
static FxOverdriveState  g_overdriveState;
static FxSaturationState g_saturationState;
static FxEchoState       g_echoState;
static FxReverbState     g_reverbState;

void AudioEffects_Init(void)
{
    g_params.audio_on_off = false;
    FxOctaver_Init(&g_octaverState, &g_params.octaver);
    FxEqualizer_Init(&g_eqState, &g_params.equalizer);
    FxOverdrive_Init(&g_overdriveState, &g_params.overdrive);
    FxSaturation_Init(&g_saturationState, &g_params.saturation);
    FxEcho_Init(&g_echoState, &g_params.echo);
    FxReverb_Init(&g_reverbState, &g_params.reverb);
}

float AudioEffects_Process(float input)
{
    float sample = input;
    sample = FxOctaver_Process(&g_octaverState, &g_params.octaver, sample);
    sample = FxEqualizer_Process(&g_eqState, &g_params.equalizer, sample);
    sample = FxOverdrive_Process(&g_overdriveState, &g_params.overdrive, sample);
    sample = FxSaturation_Process(&g_saturationState, &g_params.saturation, sample);
    sample = FxEcho_Process(&g_echoState, &g_params.echo, sample);
    sample = FxReverb_Process(&g_reverbState, &g_params.reverb, sample);

    /* Coupure de sortie : les effets continuent de tourner (pas de discontinuite
     * d'etat au reactivation), seule la sortie audible est reduite au silence. */
    if (!g_params.audio_on_off)
    {
        return 0.0f;
    }

    return sample;
}

AudioEffectsParams *AudioEffects_GetParams(void)
{
    return &g_params;
}