import pygame 
from pygame.locals import *

from Classes.Objects.Cards.MonsterCard import MonsterCard
from Classes.System.Window import Window
from Classes.System.InputHandler import InputHandler
from Classes.Objects.World import World

class App:

    __window:Window
    __running:bool = True
    __FPS = 60
    __clock = pygame.time.Clock()
    __myFont:pygame.font
    __world:World
    __inputHandler: InputHandler

    def __init__(self, width:int=1920, height:int=1080, title:str="default title"):
        pygame.font.init() 
        self.__myFont = pygame.font.SysFont('Comic Sans MS', 30)
        self.__window = Window(width=width, height=height, title=title)
        self.__inputHandler = InputHandler()
        
        # game word
        self.__world = World()

        self.startGameLoop()
        self.onCleanup()

    def startGameLoop(self):

        # create sprite groups
        self.cards = pygame.sprite.Group()

        testMonsterCard = MonsterCard(pygame.Vector2(500, 850), "Assets/Cards/MonsterCards/testmonstercard/", self.__inputHandler)
        self.cards.add(testMonsterCard)

        while self.__running:
            self.__clock.tick(self.__FPS)

            self.__window.getScreen().fill((0,0,0))

            # render world
            self.__window.drawWorld(self.__world)

            # update sprite groups
            self.cards.update()

            # draw groups
            self.__window.drawSpriteGroup(self.cards)

            # event handler
            self.handleEvent(pygame.event.get())

            # emits update to the game
            pygame.display.update()

    # handles incoming event queue
    def handleEvent(self, events):
        for event in events:
            if event.type == pygame.QUIT:
                self.onCleanup()
            elif pygame.mouse.get_pressed()[0]:  # Wenn linke Maustaste gedrückt wird
                    mouse_x, mouse_y = pygame.mouse.get_pos()
                    mouse_pos = pygame.Vector2(mouse_x, mouse_y)
                    for card in self.cards:
                        if card.rect.collidepoint(mouse_pos):
                            card.setDragging(True)
                                                        
                            # card.setOffset(mouse_pos - card.getPos())
                            for field in self.__world.getBoardFields():
                                if field.getRect().collidepoint(mouse_pos):
                                    if field.getSide() == "Player":
                                        if field.getType() == "MonsterField" and card.getType() == "MonsterCard":
                                            # todo: resize card so that it fits into the card field
                                            card.image = pygame.transform.scale(card.image, (field.getSize()[0] - 10, field.getSize()[1] - 10))
                                            card.rect.center = field.rect.center
                                            field.image = card.image.copy()
                                            card.setDragging(False)
                                            # card.kill()


            elif event.type == pygame.MOUSEBUTTONUP:
                mouse_x, mouse_y = pygame.mouse.get_pos()
                mouse_pos = pygame.Vector2(mouse_x, mouse_y)
                if event.button == 1:  # Wenn linke Maustaste losgelassen wird
                    for card in self.cards:
                        if card.rect.collidepoint(mouse_pos):
                            for field in self.__world.getBoardFields():
                                if field.getRect().collidepoint(mouse_pos):
                                    # Überprüfe, ob das Spielfeld ein MonsterField und die Karte eine MonsterCard ist
                                    if field.getSide() == "Player" and field.getType() == "MonsterField" and card.getType() == "MonsterCard":
                                        # Setze die Karte zurück, wenn sie aus dem Spielfeld herausgezogen wird
                                        card.image = pygame.transform.scale(card.image, card.original_size)
                                        card.rect.center = card.original_position
                                        card.setDragging(False)
                                        break

    # sets the running state for the gameloop
    def setRunning(self, running:bool):
        self.__running = running

    # ensures the gameloop stops running and the pygame instance is stopped properly
    def onCleanup(self):
        self.__running = False
        pygame.quit()