// SPDX-License-Identifier: BSD-2-Clause

// This code is part of the sfizz library and is licensed under a BSD 2-clause
// license. You should have receive a LICENSE.md file along with the code.
// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz


#include "sfizz/EGDescription.h"
#include "sfizz/SfzHelpers.h"
#include "catch2/catch.hpp"
using namespace Catch::literals;
using namespace sfz::literals;

TEST_CASE("[EGDescription] Attack range")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.attack = 1;
    eg.vel2attack = -1.27f;
    eg.ccAttack[63].modifier = 1.27f;
    REQUIRE(eg.getAttack(state, curveSet, 0_norm) == 1.0f);
    //REQUIRE(eg.getAttack(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getAttack(state, curveSet, 127_norm) == 1.0f);
    REQUIRE(eg.getAttack(state, curveSet, 0_norm) == 2.27f);
    //eg.ccAttack[63].modifier = 127.0f;
    //REQUIRE(eg.getAttack(state, curveSet, 0_norm) == 100.0f);
    eg.ccAttack[63].modifier = 1.27f;
    eg.ccAttack[65].modifier = 1.0f;
    REQUIRE(eg.getAttack(state, curveSet, 0_norm) == 2.27f);
    REQUIRE(eg.getAttack(state, curveSet, 127_norm) == 1.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getAttack(state, curveSet, 0_norm) == 3.27f);
    REQUIRE(eg.getAttack(state, curveSet, 127_norm) == 2.0f);
}

TEST_CASE("[EGDescription] Delay range")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.delay = 1;
    eg.vel2delay = -1.27f;
    eg.ccDelay[63].modifier = 1.27f;
    REQUIRE(eg.getDelay(state, curveSet, 0_norm) == 1.0f);
    //REQUIRE(eg.getDelay(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getDelay(state, curveSet, 127_norm) == 1.0f);
    REQUIRE(eg.getDelay(state, curveSet, 0_norm, 1) == 2.27f);
    //eg.ccDelay[63].modifier = 127.0f;
    //REQUIRE(eg.getDelay(state, curveSet, 0_norm) == 100.0f);
    eg.ccDelay[63].modifier = 1.27f;
    eg.ccDelay[65].modifier = 1.0f;
    REQUIRE(eg.getDelay(state, curveSet, 0_norm) == 2.27f);
    REQUIRE(eg.getDelay(state, curveSet, 127_norm) == 1.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getDelay(state, curveSet, 0_norm) == 3.27f);
    REQUIRE(eg.getDelay(state, curveSet, 127_norm) == 2.0f);
}

TEST_CASE("[EGDescription] Decay range")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.decay = 1.0f;
    eg.vel2decay = -1.27f;
    eg.ccDecay[63].modifier = 1.27f;
    REQUIRE(eg.getDecay(state, curveSet, 0_norm) == 1.0f);
    //REQUIRE(eg.getDecay(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getDecay(state, curveSet, 127_norm) == 1.0f);
    REQUIRE(eg.getDecay(state, curveSet, 0_norm) == 2.27f);
    //eg.ccDecay[63].modifier = 127.0f;
    //REQUIRE(eg.getDecay(state, curveSet, 0_norm) == 100.0f);
    eg.ccDecay[63].modifier = 1.27f;
    eg.ccDecay[65].modifier = 1.0f;
    REQUIRE(eg.getDecay(state, curveSet, 0_norm) == 2.27f);
    REQUIRE(eg.getDecay(state, curveSet, 127_norm) == 1.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getDecay(state, curveSet, 0_norm) == 3.27f);
    REQUIRE(eg.getDecay(state, curveSet, 127_norm) == 2.0f);
}

TEST_CASE("[EGDescription] Release range")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.release = 1;
    eg.vel2release = -1.27f;
    eg.ccRelease[63].modifier = 1.27f;
    REQUIRE(eg.getRelease(state, curveSet, 0_norm) == 1.0f);
    //REQUIRE(eg.getRelease(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getRelease(state, curveSet, 127_norm) == 1.0f);
    REQUIRE(eg.getRelease(state, curveSet, 0_norm) == 2.27f);
    //eg.ccRelease[63].modifier = 127.0f;
    //REQUIRE(eg.getRelease(state, curveSet, 0_norm) == 100.0f);
    eg.ccRelease[63].modifier = 1.27f;
    eg.ccRelease[65].modifier = 1.0f;
    REQUIRE(eg.getRelease(state, curveSet, 0_norm) == 2.27f);
    REQUIRE(eg.getRelease(state, curveSet, 127_norm) == 1.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getRelease(state, curveSet, 0_norm) == 3.27f);
    REQUIRE(eg.getRelease(state, curveSet, 127_norm) == 2.0f);
}

TEST_CASE("[EGDescription] Hold range")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.hold = 1;
    eg.vel2hold = -1.27f;
    eg.ccHold[63].modifier = 1.27f;
    REQUIRE(eg.getHold(state, curveSet, 0_norm) == 1.0f);
    //REQUIRE(eg.getHold(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getHold(state, curveSet, 127_norm) == 1.0f);
    REQUIRE(eg.getHold(state, curveSet, 0_norm) == 2.27f);
    //eg.ccHold[63].modifier = 127.0f;
    //REQUIRE(eg.getHold(state, curveSet, 0_norm) == 100.0f);
    eg.ccHold[63].modifier = 1.27f;
    eg.ccHold[65].modifier = 1.0f;
    REQUIRE(eg.getHold(state, curveSet, 0_norm) == 2.27f);
    REQUIRE(eg.getHold(state, curveSet, 127_norm) == 1.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getHold(state, curveSet, 0_norm) == 3.27f);
    REQUIRE(eg.getHold(state, curveSet, 127_norm) == 2.0f);
}

TEST_CASE("[EGDescription] Sustain level")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.sustain = 50;
    eg.vel2sustain = -100;
    eg.ccSustain[63].modifier = 100.0f;
    REQUIRE(eg.getSustain(state, curveSet, 0_norm) == 50.0f);
    //REQUIRE(eg.getSustain(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    REQUIRE(eg.getSustain(state, curveSet, 127_norm) == 50.0f);
    //eg.ccSustain[63].modifier = 200.0f;
    //REQUIRE(eg.getSustain(state, curveSet, 0_norm) == 100.0f);
    eg.sustain = 0;
    eg.ccSustain[63].modifier = 50.0f;
    eg.ccSustain[65].modifier = 50.0f;
    REQUIRE(eg.getSustain(state, curveSet, 0_norm) == 50.0f);
    //REQUIRE(eg.getSustain(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getSustain(state, curveSet, 0_norm) == 100.0f);
    REQUIRE(eg.getSustain(state, curveSet, 127_norm) == 0.0f);
}

TEST_CASE("[EGDescription] Start level")
{
    sfz::EGDescription eg;
    sfz::MidiState state;
    sfz::CurveSet curveSet;
    eg.start = 0;
    eg.ccStart[63].modifier = 127.0f;
    REQUIRE(eg.getStart(state, curveSet, 0_norm) == 0.0f);
    REQUIRE(eg.getStart(state, curveSet, 127_norm) == 0.0f);
    state.ccEvent(0, 63, 127_norm);
    //REQUIRE(eg.getStart(state, curveSet, 0_norm) == 100.0f);
    //eg.ccStart[63] = -127.0f;
    //REQUIRE(eg.getStart(state, curveSet, 0_norm) == 0.0f);
    eg.start = 0;
    eg.ccStart[63].modifier = 50.0f;
    eg.ccStart[65].modifier = 50.0f;
    REQUIRE(eg.getStart(state, curveSet, 0_norm) == 50.0f);
    REQUIRE(eg.getStart(state, curveSet, 127_norm) == 50.0f);
    state.ccEvent(0, 65, 127_norm);
    REQUIRE(eg.getStart(state, curveSet, 0_norm) == 100.0f);
    REQUIRE(eg.getStart(state, curveSet, 127_norm) == 100.0f);
}