// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
// This file is a part of HexoDSP. Released under GPL-3.0-or-later.
// See README.md and COPYING for details.

mod common;
use common::*;

#[test]
fn check_node_tslfo_1() {
    let (node_conf, mut node_exec) = new_node_engine();
    let mut matrix = Matrix::new(node_conf, 3, 3);

    let tsl = NodeId::TsLFO(0);
    let out = NodeId::Out(0);
    matrix.place(0, 0, Cell::empty(tsl).out(None, None, tsl.out("sig")));
    matrix.place(0, 1, Cell::empty(out).input(out.inp("ch1"), None, None));
    pset_d(&mut matrix, tsl, "time", 0.1);
    matrix.sync().unwrap();

    // Test shortest time 0.1ms:
    let (out_l, _) = run_for_ms(&mut node_exec, 1.0);
    assert_decimated_feq!(
        out_l,
        1,
        vec![0.0, 0.4535, 0.9070, 0.6394, 0.1859, 0.2675, 0.7210, 0.8253, 0.37188, 0.0816]
    );

    // Test 1ms:
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "time", 1.0);
    let (out_l, _) = run_for_ms(&mut node_exec, 5.0);
    assert_decimated_feq!(
        out_l,
        10,
        vec![0.7103, 0.8361, 0.3826, 0.0708, 0.5244, 0.9779, 0.5685, 0.1150, 0.3384]
    );

    // Test 300000.0 ms
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "time", 300000.0);
    let (out_l, _) = run_for_ms(&mut node_exec, 3000.0);
    let ramp_slope = 1.0_f64 / (300.0 * 44100.0);
    let tri_slope = ramp_slope * 2.0;
    assert_float_eq!((out_l[0] - out_l[10000]).abs(), (tri_slope * 10000.0) as f32);
    assert_float_eq!((out_l[10000] - out_l[11000]).abs(), (tri_slope * 1000.0) as f32);
    assert_decimated_feq!(
        out_l,
        10000,
        vec![
            0.7566, // => Slope is ~0.0015 per 10000 samples
            0.7551, 0.7536, 0.7521, 0.7506, 0.7490, 0.7475,
        ]
    );
}

#[test]
fn check_node_tslfo_trig_slopes() {
    let (node_conf, mut node_exec) = new_node_engine();
    let mut matrix = Matrix::new(node_conf, 3, 3);

    let tsl = NodeId::TsLFO(0);
    let out = NodeId::Out(0);
    matrix.place(0, 0, Cell::empty(tsl).out(None, None, tsl.out("sig")));
    matrix.place(0, 1, Cell::empty(out).input(out.inp("ch1"), None, None));
    matrix.sync().unwrap();

    // Test 1ms but at full ramp up and resync/trigger:
    pset_d(&mut matrix, tsl, "rev", 1.0);
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "time", 10.0);
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "trig", 1.0);
    let (out_l, _) = run_for_ms(&mut node_exec, 15.0);
    let ramp_slope = 1.0_f64 / ((10.0 / 1000.0) * 44100.0);
    assert_float_eq!((out_l[0] - out_l[1]).abs(), ramp_slope as f32);
    assert_decimated_feq!(
        out_l,
        50,
        vec![
            0.00000022911095,
            0.11349243,
            0.22698463,
            0.34047684,
            0.45396903,
            0.56746125,
            0.68095344,
            0.79444563,
            0.9079378,
            0.020429054,
            0.13392125,
            0.24741346,
            0.36090568,
            0.47439787
        ]
    );

    pset_d_wait(&mut matrix, &mut node_exec, tsl, "trig", 0.0);

    // Test 1ms but at full ramp down and resync/trigger:
    pset_d(&mut matrix, tsl, "rev", 0.0);
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "time", 10.0);
    pset_d_wait(&mut matrix, &mut node_exec, tsl, "trig", 1.0);
    let (out_l, _) = run_for_ms(&mut node_exec, 15.0);
    let ramp_slope = 1.0_f64 / ((10.0 / 1000.0) * 44100.0);
    assert_float_eq!((out_l[1] - out_l[2]).abs(), ramp_slope as f32);
    assert_decimated_feq!(
        out_l,
        50,
        vec![
            0.0022888184,
            0.88670975,
            0.77331966,
            0.65992963,
            0.5465396,
            0.43314955,
            0.3197595,
            0.20636943,
            0.09297939,
            0.97968936,
            0.8662993,
            0.75290924,
            0.6395192,
            0.5261291
        ]
    );
}