/*******************************************************************************
 * Copyright (C) 2017-2026 Theodore Chang
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

#include "Sine.h"

Sine::Sine(const unsigned T, const double L, std::vector<double>&& AA)
    : Amplitude(T)
    , period(.5 * L)
    , amp(std::move(AA)) {}

unique_ptr<Amplitude> Sine::unique_copy() { return std::make_unique<Sine>(*this); }

double Sine::get_amplitude(const double T) {
    const auto step_time = T - start_time;

    if(step_time <= 0.) return 0.;

    auto A = 0., N = 0.;

    for(const auto& I : amp) A += I * sin(++N * datum::pi * step_time / period);

    return A;
}

void Sine::print() {
    suanpan_info("Sine.\n");
}
