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// Copyright (c) Cole Frederick. All rights reserved.
// The use and distribution terms for this software are covered by the
// Eclipse Public License 1.0 (https://opensource.org/licenses/eclipse-1.0.php)
// which can be found in the file epl-v10.html at the root of this distribution.
// By using this software in any fashion, you are agreeing to be bound by the terms of this license.
// You must not remove this notice, or any other, from this software.

use super::*;
use std::cell::{Cell, RefCell};

thread_local! {
    pub static PRN: Cell<u64> = Cell::new(0);
}

pub fn next_random() -> (u64, String) {
    // could consult previous run data, return a target number (rather than from below)

    let x = PRN.with(|y| {
        let ret = y.get();
        y.set(cycle(ret));
        ret
    });
    (x, "]".to_string())
}

pub fn set_seed(x: u64) {
    PRN.with(|y| {
        y.set(x)
    })
}

thread_local! {
    pub static LOG: RefCell<Vec<String>> = RefCell::new(Vec::new());
}

pub fn log(m: String) {
    LOG.with(|v_cell| {
        let mut v = v_cell.borrow_mut();
        v.push(m);
    })
}

pub fn log_copy() -> Vec<String> {
    LOG.with(|v_cell| {
        let v = v_cell.borrow_mut();
        v.clone()
    })
}

#[cfg(test)]
mod tests {
    use super::*;
}