/*
 * Copyright (c) 2020-2021 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

mod filesource;
mod gain;
mod mixer;
mod sinusoid;

use crate::IQSample;

/* Re-exports */
pub use filesource::FileSourceSignal;
pub use gain::Gain;
pub use mixer::Mixer;
pub use sinusoid::Sinusoid;

/*
 * Generic signal
 */
pub trait Signal : Iterator<Item=IQSample>
    where
        Self: Sized {
    fn sample_rate(&self) -> u64;
    fn sample_size(&self) -> usize;
    fn sample_shift(&self) -> u64;
    fn freq(&self) -> u64;

    fn shift_freq(self, delta: i64) -> Mixer<Self, Sinusoid> {
        let rate = self.sample_rate();

        Mixer::new(self, Sinusoid::new(rate, delta))
    }
}