from graphics.colors import Colors
from graphics.engine import Layer

from graphics.engine import Screen

from getkey import keys
from re import match

class GUI(Layer):
    """Calque du menu principal"""
    def __init__(self, z_index):
        super().__init__(z_index, "gui")
        self.__current = 0
        self.__buttons = ["Attaquer", "Inventaire"]
        self.__inventaire = False
        self.handle_keys = False

        self.__page = 1

    def draw(self):
        super().draw()
        if self.__inventaire == False:
            x = 1
            for button in self.__buttons:
                color = (Colors.REDBG, Colors.BLACK) if self.__buttons[self.__current] == button else (Colors.WHITEBG, Colors.BLACK)
                self.put_string(button, x, self.y-10, color)
                x += len(button)+1

            stats = Screen.instance.game.personnage.affiche_caracteristiques()
            for i in range(4):
                self.put_string(stats[i], 1, self.y-8+i, [Colors.RED2])
            for i in range(6):
                self.put_string(stats[i+4], (self.x-2)//3, self.y-8+i, [Colors.RED2])

            ennemy_stats = Screen.instance.game.ennemy.reduced_stats()
            for i in range(3):
                self.put_string(ennemy_stats[i], self.x-(self.x-2)//3, self.y-8+i, [Colors.BLUE2])
        
        else:
            x = 1
            for button in self.__buttons:
                color = (Colors.REDBG, Colors.BLACK) if self.__buttons[self.__current] == button else (Colors.WHITEBG, Colors.BLACK)
                self.put_string(button, x, self.y-10, color)
                x += len(button)+1
        
        return self

    def key_handler(self, key):
        if key == keys.RIGHT and self.__current < len(self.__buttons)-1:
            self.__current += 1
        elif key == keys.LEFT and self.__current > 0:
            self.__current -= 1
        elif key == keys.ENTER:
            if self.__inventaire == False:
                if self.__current == 0:
                    attacker = Screen.instance.game.personnage
                    victim = Screen.instance.game.ennemy
                    Screen.instance.game.attack(attacker, victim)
                elif self.__current == 1:
                    self.__inventaire = True
                    self.__current = 0
                    self.__buttons = ["Retour", "Potion", Screen.instance.game.personnage.arme.meta.name]
            else:
                if self.__current == 0:
                    self.__inventaire = False
                    self.__buttons = ["Attaquer", "Inventaire"]



class StartPopUp(Layer):
    """Calque du menu de lancement"""
    def __init__(self, z_index):
        super().__init__(z_index, "popup")
        self.__classes = ["GUERRIER", "MAGICIEN", "VOLEUR", "ELFE"]
        self.__choosen_class = 0
        self.__username = ""
        self.__missing_un = False

    def draw(self):
        super().draw()
        #bg
        self.rect(self.x//3, self.y//6, self.x*2//3, self.y//4 + self.y//3, Colors.WHITEBG)
        #name
        self.put_string("Nom: (A-z)", self.x//3 + 1, self.y//6 + 1, [Colors.WHITEBG, Colors.BLACK])
        self.rect(self.x//3 + 1, self.y//6 + 2, self.x*2//3 - 2, self.y//6 + 2, Colors.REDBG if self.__missing_un else Colors.BLACKBG)
        self.put_string(self.__username, self.x//3 + 1, self.y//6 + 2, [Colors.WHITE, Colors.BLACKBG])
        #Classes
        self.put_string("Classe perso.: (Flèches)", self.x//3 + 1, self.y//6 + 4, [Colors.WHITEBG, Colors.BLACK])
        y = 0
        for user_class in self.__classes:
            colors = colors = [Colors.REDBG, Colors.BLACK] if y == self.__choosen_class else [Colors.GREYBG, Colors.WHITE]
            self.put_string(user_class, self.x//3 + 2, self.y//6 + 5 + y, colors)
            y += 1
        
        self.put_string("TAB pour confirmer", self.x//3 + 1, self.y//4 + self.y//3 -1, [Colors.WHITEBG, Colors.BLACK])

        return self

    def key_handler(self, key):
        if match("[a-zA-Z]", key):
            self.__username += key
        elif key == keys.BACKSPACE:
            self.__username = self.__username[:-1]
        elif key == keys.UP and self.__choosen_class > 0:
            self.__choosen_class -= 1
        elif key == keys.DOWN and self.__choosen_class < 3:
            self.__choosen_class += 1
        elif key == keys.TAB:
            if len(self.__username) == 0:
                self.__missing_un = True
                return
            Screen.instance.get_layer("gui").handle_keys = True
            Screen.instance.del_layer("popup")
            Screen.instance.game.init_personnage(self.__username, self.__classes[self.__choosen_class])

class PopUp(Layer):
    """Calque du menu de lancement"""
    def __init__(self, z_index, message, block=False):
        super().__init__(z_index, "popup")
        self.message = message
        self.block = block
        Screen.instance.get_layer("gui").handle_keys = False

    def draw(self):
        super().draw()
        self.rect(self.x//3, self.y//6, self.x*2//3, self.y//4 + self.y//3, Colors.WHITEBG)
        length = (self.x*2//3-1) - (self.x//3+1)
        x = 0
        y = 0
        for char in self.message:
            self.put_char(char, self.x//3 + 1 + x, self.y//6 + 1 + y, [Colors.WHITEBG, Colors.BLACK])
            x += 1
            if x == length:
                x = 0
                y += 1
        
        if not self.block:
            self.put_string("TAB pour confirmer", self.x//3 + 1, self.y//4 + self.y//3 -1, [Colors.WHITEBG, Colors.BLACK])

        return self

    def key_handler(self, key):
        if key == keys.TAB and not self.block:
            Screen.instance.get_layer("gui").handle_keys = True
            Screen.instance.del_layer("popup")

class Sprite(Layer):
    def __init__(self, z_index, sprite_name, place):
        if place != "player" and place != "opponant":
            raise ValueError("wrong sprite name")
        super().__init__(z_index, place)
        self.place = place
        self.sprite_name = sprite_name

    def draw(self):
        super().draw()
        with open(f"game/sprites/{self.sprite_name}.txt", "r") as sprite:
            pos = (1, 1) if self.place == "player" else (Screen.instance.x*2//3+1, 1)
            self.put_string(sprite.read(), *pos)

    def key_handler(self, key):
        pass