extern crate rand;
extern crate pancurses;

#[macro_use]
extern crate text_io;

mod character;
mod computer;
mod world;

use std::env;
use character::Player;
use character::Character;
use computer::Enemy;
use pancurses::{Window, initscr, endwin};
use world::{Dungeon, Level, Generable, TileType};

fn tile_to_str(tile: &TileType) -> &str {
    match tile {
        TileType::Floor => ".",
        TileType::Wall => "#",
        TileType::Empty => " ",
        TileType::StairsDown => ">",
        TileType::StairsUp => "<",
        _ => "?"
    }
}

fn draw_block(window: &Window, block: &TileType) {
    window.printw(tile_to_str(block));
}

fn render_level(window: &Window, level: &Level) {
    let grid = level.to_tilegrid().unwrap();

    for (linenum, line) in grid.raw_data().iter().enumerate() {
        for block in line.iter() {
            draw_block(&window, block);
        }
        window.mv(linenum as i32, 0);
    }
}

fn debug_level(level: Level) {
    let grid = level.to_tilegrid().unwrap();

    for line in grid.raw_data().iter() {
        for block in line.iter() {
            print!("{}", tile_to_str(block));
        }
        print!("\n");
    }
}


fn main() {
    let mut level = 0;
    let mut dungeon = Dungeon::new(80, 24, 5);
    dungeon.generate();

    let start_location = dungeon.levels[0].get_start_point();

    let mut character: Character = Character::new(
        "Kshar".to_string(),
        "Warror".to_string(),
        30,
        10,
        10,
        20,
        start_location
    );
    character.place(start_location);

    // Dump the whole dungeon structure in terminal for debugging
    match env::var("DEBUG") {
        Ok(_) => {
            for l in dungeon.levels {
                debug_level(l);
            }
            return
        },
        Err(_) => ()
    };

    let window = initscr();

    render_level(&window, &dungeon.levels[0]);
    window.refresh();
    window.getch();

    endwin();
}