from pygame import Surface

from physics.PhysicsElementsHandler import PhysicsElementsHandler
from sprite.PositionScale import PositionScale
from sprite.Sprite import Sprite
from ui_elements.UiElement import UiElement


class DrawLayers:
    BACKGROUND = 'background'
    LEVEL = 'level'
    OBJECTS = 'objects'
    PLAYER = 'player'
    UI = 'ui'

    DRAW_ORDER = [BACKGROUND, LEVEL, OBJECTS, PLAYER, UI]


class SpriteManager:
    def __init__(self):
        self.physics_handler = PhysicsElementsHandler()
        self.physics_handler.add_collision_callback(self.collision_detected)

        self.layers: dict[str, list[UiElement]] = {}
        for layer in DrawLayers.DRAW_ORDER:
            self.layers[layer] = []

    def add_sprite(self, layer: str, sprite: UiElement):
        self.layers[layer].append(sprite)

    def remove_sprite(self, sprite: UiElement):
        for layer in self.layers:
            if sprite in self.layers[layer]:
                self.layers[layer].remove(sprite)

    def tick(self, dt: float):
        self.physics_handler.tick(dt, self.layers)

    def draw(self, screen: Surface, screen_transform: PositionScale):
        for layer in DrawLayers.DRAW_ORDER:
            for sprite in self.layers[layer]:
                sprite.draw(screen, screen_transform)

    def collision_detected(self, sprite_a: Sprite, sprite_b: Sprite):
        # print(f"Collision detected between {sprite_a} and {sprite_b}")
        pass