from typing import Any

from .interfaces import Map
from .mapdisplay import MapDisplay
from .settings import Settings
from .term_manager import TermManager


class Game:
    INSTANCE = None

    def init(self) -> None:
        Game.INSTANCE = self
        self.settings = Settings()
        self.settings.load_settings()
        self.settings.write_settings()
        with TermManager() as term_manager:
            self._start_game(term_manager.screen)

    def _start_game(self, screen: Any) -> None:
        # TODO Generate map, or make the possibility to load another one
        m = Map.load("example_map.txt")
        player = Player()
        self.player = player
        player.y = 1
        player.x = 6
        d = MapDisplay(m, player)
        while True:
            screen.clear()
            screen.refresh()
            d.display(player.y, player.y)
            key = screen.getkey()
            self.handle_key_pressed(key)

    def handle_key_pressed(self, key: str) -> None:
        # TODO load keys from settings
        if key == 'z' or key == 'KEY_UP':
            self.player.move_up()
        if key == 's' or key == 'KEY_DOWN':
            self.player.move_down()
        if key == 'q' or key == 'KEY_LEFT':
            self.player.move_left()
        if key == 'd' or key == 'KEY_RIGHT':
            self.player.move_right()


class Player:
    # FIXME Should be elsewhere, only useful to don't break the previous code
    y: int = 0
    x: int = 0

    def move_up(self) -> None:
        self.y -= 1

    def move_down(self) -> None:
        self.y += 1

    def move_left(self) -> None:
        self.x -= 1

    def move_right(self) -> None:
        self.x += 1