#![allow(unused)]
#![allow(clippy::unit_arg)]

pub use ::tek_layout;
pub use ::tek_layout::tek_engine;

pub(crate) use ::tek_layout::{
    *,
    tek_engine::{
        Usually, Perhaps,
        Engine, Size, Area,
        Output, Content, Thunk, render,
        Input, Handle, handle,
        kexp, key_pat, key_event_pat, key_event_expr,
        tui::{
            Tui, TuiIn, TuiOut,
            crossterm::{
                self,
                event::{
                    Event, KeyEvent, KeyEventKind, KeyEventState, KeyModifiers,
                    KeyCode::{self, *},
                }
            },
            ratatui::{
                self,
                prelude::{Color, Style, Stylize, Buffer, Modifier},
                buffer::Cell,
            }
        }
    }
};

pub(crate) use std::cmp::{Ord, Eq, PartialEq};
pub(crate) use std::collections::BTreeMap;
pub(crate) use std::error::Error;
pub(crate) use std::ffi::OsString;
pub(crate) use std::fmt::{Debug, Display, Formatter};
pub(crate) use std::io::{Stdout, stdout};
pub(crate) use std::marker::PhantomData;
pub(crate) use std::ops::{Add, Sub, Mul, Div, Rem};
pub(crate) use std::path::PathBuf;
pub(crate) use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering::{self, *}};
pub(crate) use std::sync::{Arc, Mutex, RwLock};
pub(crate) use std::thread::{spawn, JoinHandle};
pub(crate) use std::time::Duration;

pub mod arranger;  pub use self::arranger::*;
pub mod border;    pub use self::border::*;
pub mod color;     pub use self::color::*;
pub mod command;   pub use self::command::*;
pub mod event;     pub use self::event::*;
pub mod file;      pub use self::file::*;
pub mod focus;     pub use self::focus::*;
pub mod groovebox; pub use self::groovebox::*;
pub mod jack;      pub use self::jack::*;
pub mod meter;     pub use self::meter::*;
pub mod midi;      pub use self::midi::*;
pub mod mixer;     pub use self::mixer::*;
pub mod piano_h;   pub use self::piano_h::*; 
pub mod plugin;    pub use self::plugin::*;
pub mod pool;      pub use self::pool::*;
pub mod sampler;   pub use self::sampler::*;
pub mod sequencer; pub use self::sequencer::*;
pub mod status;    pub use self::status::*;
pub mod style;     pub use self::style::*;
pub mod theme;     pub use self::theme::*;
pub mod time;      pub use self::time::*;
pub mod transport; pub use self::transport::*;

pub use ::atomic_float;
pub(crate) use atomic_float::*;

pub use ::midly::{self, num::u7};
pub(crate) use ::midly::{
    Smf,
    MidiMessage,
    TrackEventKind,
    live::LiveEvent,
};

pub use ::palette;
pub(crate) use ::palette::{
    *,
    convert::*,
    okhsl::*
};

testmod! { test }

/// Define test modules.
#[macro_export] macro_rules! testmod {
    ($($name:ident)*) => { $(#[cfg(test)] mod $name;)* };
}

/// Prototypal case of implementor macro.
/// Saves 4loc per data pats.
#[macro_export] macro_rules! from {
    ($(<$($lt:lifetime),+>)?|$state:ident:$Source:ty|$Target:ty=$cb:expr) => {
        impl $(<$($lt),+>)? From<$Source> for $Target {
            fn from ($state:$Source) -> Self { $cb }
        }
    };
}

pub trait Gettable<T> {
    /// Returns current value
    fn get (&self) -> T;
}

pub trait Mutable<T>: Gettable<T> {
    /// Sets new value, returns old
    fn set (&mut self, value: T) -> T;
}

pub trait InteriorMutable<T>: Gettable<T> {
    /// Sets new value, returns old
    fn set (&self, value: T) -> T;
}

impl Gettable<bool> for AtomicBool {
    fn get (&self) -> bool { self.load(Relaxed) }
}

impl InteriorMutable<bool> for AtomicBool {
    fn set (&self, value: bool) -> bool { self.swap(value, Relaxed) }
}

impl Gettable<usize> for AtomicUsize {
    fn get (&self) -> usize { self.load(Relaxed) }
}

impl InteriorMutable<usize> for AtomicUsize {
    fn set (&self, value: usize) -> usize { self.swap(value, Relaxed) }
}

#[derive(Default)]
pub struct BigBuffer {
    pub width:   usize,
    pub height:  usize,
    pub content: Vec<Cell>
}

impl BigBuffer {
    pub fn new (width: usize, height: usize) -> Self {
        Self { width, height, content: vec![Cell::default(); width*height] }
    }
    pub fn get (&self, x: usize, y: usize) -> Option<&Cell> {
        let i = self.index_of(x, y);
        self.content.get(i)
    }
    pub fn get_mut (&mut self, x: usize, y: usize) -> Option<&mut Cell> {
        let i = self.index_of(x, y);
        self.content.get_mut(i)
    }
    pub fn index_of (&self, x: usize, y: usize) -> usize {
        y * self.width + x
    }
}

from!(|size:(usize, usize)| BigBuffer = Self::new(size.0, size.1));