mod consulter;
mod game;
mod gui;
mod parser;

use crate::consulter::*;
use crate::game::*;
use crate::gui::*;
use crate::parser::*;
use std::io::Error;

fn human_action(
    action_entry: &ActionEntry,
    message_log: &MessageLog,
    game: &Game,
) -> Result<Action, Error> {
    loop {
        let inp = action_entry.read_action();
        match parse_action(&game, &inp) {
            Err(err) => message_log.log_error(format!("Input \"{}\": {}", inp, err)),
            Ok(action) => return Ok(action),
        }
    }
}

fn main() {
    let screen = initscr();
    cbreak();
    noecho();
    curs_set(2);

    let width = screen.get_max_x();
    let height = screen.get_max_y();

    let has_colours = has_colors();
    let (black_colour, white_colour, red_colour): (u8, u8, u8) = (1, 2, 3);

    if has_colours {
        start_color();
        use_default_colors();
        init_pair(black_colour as i16, -1, COLOR_RED);
        init_pair(white_colour as i16, -1, COLOR_BLUE);
        init_pair(red_colour as i16, COLOR_RED, -1);
    }

    screen.refresh();

    let size = 5;
    let cell_height = 4;
    let cell_width = 8;
    let hoff = 3;

    let board_bottom = (size * cell_height + 3) as i32;
    let board_right = (size * cell_width + hoff + 3) as i32;

    let mut board_gui = BoardGUI::new(
        0,
        0,
        size,
        cell_height,
        cell_width,
        hoff,
        has_colours,
        white_colour,
        black_colour,
    );

    let game_log = GameLog::new(
        0,
        board_right,
        height,
        20,
        has_colours,
        white_colour,
        black_colour,
    );

    // Need room for '8___011111111', for example
    let action_entry = ActionEntry::new(board_bottom, 0, 13);

    let message_log = MessageLog::new(
        board_bottom + 1,
        0,
        height - board_bottom - 1,
        width,
        has_colours,
        red_colour,
    );

    let (mut game, warning) = Game::new(5, "tslil", "taktician");
    message_log.log_error(warning);
    game_log.update(&game);

    const CONSULT_PROC: &str = "/home/tslil/bin/wrap_taktician";
    loop {
        let inp = match game.query_current_player() {
            Player::Black => consult_next_action(&game, CONSULT_PROC),
            Player::White => human_action(&action_entry, &message_log, &game),
        };

        match inp {
            Err(err) => {
                message_log.log_error(format!("{}", err));
                break;
            }
            Ok(act) => {
                let stone_owner = game.query_stone_owner();
                let player = game.query_current_player();

                message_log.log_message(format!(
                    "{} performs {}{}",
                    player,
                    act,
                    if stone_owner != player {
                        format!(" with a {} stone.", stone_owner)
                    } else {
                        String::from(".")
                    }
                ));
                match game.perform_action(act) {
                    Err(e) => {
                        message_log.log_error(e);
                        if game.query_current_player() == Player::Black {
                            // external and internal gamestates diverged
                            break;
                        }
                    }

                    Ok((pos_vec, win)) => {
                        board_gui.update(&game, pos_vec);
                        game_log.update(&game);
                        if let Some(w) = win {
                            message_log.log_message(format!("{}", w));
                            break;
                        }
                    }
                }
            }
        }
        action_entry.clear_entry_area();
    }

    screen.getch();
    // board_gui.read_action();
    endwin();
}