// Copyright (c) 2019-2024 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
//
// Serves as a more advanced input method
// based on the work of https://github.com/AmokHuginnsson/replxx
//
module readline

import term.termios

// Winsize stores the screen information on Linux.
struct Winsize {
    ws_row    u16
    ws_col    u16
    ws_xpixel u16
    ws_ypixel u16
}

// Readline is the key struct for reading and holding user input via a terminal.
pub struct Readline {
pub mut:
    is_raw                 bool
    orig_termios           termios.Termios // Linux
    current                []rune          // Line being edited
    cursor                 int             // Cursor position
    overwrite              bool
    cursor_row_offset      int
    prompt                 string
    prompt_offset          int
    previous_lines         [][]rune
    skip_empty             bool // skip the empty lines when calling .history_previous()
    search_index           int
    is_tty                 bool
    last_prefix_completion []rune
    last_completion_offset int
    completion_list        []string
    completion_callback    fn (string) []string = unsafe { nil }
mut:
    orig_stdin_mode u32 // Windows
}