##################################
#
#  Sight Words - For Kids by Kids
#
##################################
#   TODO:
#    - Add Scene to Pick Wordlists
#    - Create CheckBox Object
#    - Add Image to main screen
#    - Add Image to Word Game
#    - Make the Colors easier to change
#    - Add Delay 'animation' to word changing
#    - Add alphabet list


import random
import pygame
import pygame.freetype
import os

FONT = "resources/fonts/iosevka-regular.ttf"
HEIGHT = 600
WIDTH = 800
DISPLAY = (WIDTH, HEIGHT)
DEPTH = 0
FLAGS = 0

CORRECT = 0
MISSED = 0

class Scene(object):
    def __init__(self):
        pass

    def render(self, screen):
        raise NotImplementedError

    def update(self):
        raise NotImplementedError

    def handle_events(self, events):
        raise NotImplementedError

class GameScene(object):
    def next_word(self):
        return self.words[random.randint(0,len(self.words)-1)]
    
    def write_word(self, screen, text):
        # blank the word area
        pygame.draw.rect(screen, 
            (20,20,20), 
            (0,0,WIDTH*0.75, HEIGHT), 
            0
            )
        
        # Write the current word
        text_surface, _ = self.font.render(text, pygame.Color("DeepPink"))
        text_rect = text_surface.get_rect(center=((WIDTH//8)*3, HEIGHT//2))
        screen.blit(text_surface, text_rect)
        pygame.display.update()

    def __init__(self):
        super(GameScene, self).__init__()
        self.font = pygame.freetype.Font(FONT, 72)
        self.sfont = pygame.freetype.Font(FONT, 24)
        self.sound_correct = pygame.mixer.Sound('resources/sounds/MENU A_Select.wav')
        self.sound_missed = pygame.mixer.Sound('resources/sounds/ALERT_Error.wav')
        self.CORRECT = 0
        self.MISSED = 0
        self.updating = False
        self.words = []

        # Load all the words in the wordlists
        path = "resources/wordlists/"
        filelist = os.listdir(path)
        for wordlistf in filelist:
            with open(path+wordlistf) as f:
                for line in f:
                    self.words.append(line.rstrip())
        print(self.words)
        self.current_word = self.next_word()
        pass
    
    def render(self, screen):
        # Blank the Screen
        screen.fill((20,20,20))
        
        if self.updating:
            self.write_word(screen, "...")
            pygame.time.wait(200)
            self.updating = False
        
        self.write_word(screen, self.current_word)

        # Write the Correct Score
        yes_surface, _ = self.font.render(str(self.CORRECT), pygame.Color("Green"))
        yes_rect = yes_surface.get_rect(center=((WIDTH//8)*7, (HEIGHT//3)))
        screen.blit(yes_surface, yes_rect)

        # Write the Missed Score
        no_surface, _ = self.font.render(str(self.MISSED), pygame.Color("Red"))
        no_rect = no_surface.get_rect(center=((WIDTH//8)*7, (HEIGHT//3)*2))
        screen.blit(no_surface, no_rect)

    def update(self):
        pass

    def handle_events(self, events):
        for e in events:
            if e.type == pygame.KEYDOWN:
                if e.key == pygame.K_q:
                    pygame.quit()
                elif e.key == pygame.K_m:
                    self.current_word = self.next_word()
                    pygame.mixer.Sound.play(self.sound_correct)
                    self.CORRECT += 1
                    self.updating = True
                elif e.key == pygame.K_z:
                    self.current_word = self.next_word()
                    pygame.mixer.Sound.play(self.sound_missed)
                    self.MISSED += 1    
                    self.updating = True

class TitleScene(object):

    def __init__(self):
        super(TitleScene, self).__init__()
        self.font = pygame.freetype.Font(FONT, 72)
        self.sfont = pygame.freetype.Font(FONT, 24)

    def render(self, screen):
        # beware: ugly! 
        screen.fill((20, 20, 20))
        text1, _ = self.font.render('Sight Words', pygame.Color("DeepPink"))
        text1_rect = text1.get_rect(center=(WIDTH//2,HEIGHT//2))
        screen.blit(text1, text1_rect)

        text2, _ = self.sfont.render('> press space to start <', pygame.Color("Purple"))
        text2_rect = text2.get_rect(center=(WIDTH//2,(HEIGHT - 50)))
        screen.blit(text2, text2_rect)

    def update(self):
        pass

    def handle_events(self, events):
        for e in events:
            if e.type == pygame.KEYDOWN and e.key == pygame.K_SPACE:
                self.manager.go_to(GameScene())
                #pygame.quit()


class SceneMananger(object):
    def __init__(self):
        self.go_to(TitleScene())

    def go_to(self, scene):
        self.scene = scene
        self.scene.manager = self

def main():
    pygame.init()
    screen = pygame.display.set_mode(DISPLAY, FLAGS, DEPTH)
    pygame.display.set_caption("Sight Words - For Kids By Kids")
    clock = pygame.time.Clock()
    running = True

    manager = SceneMananger()

    while running:
        clock.tick(30)

        if pygame.event.get(pygame.QUIT):
            running = False
            return
        manager.scene.handle_events(pygame.event.get())
        manager.scene.update()
        manager.scene.render(screen)
        pygame.display.flip()


if __name__ == "__main__":
    main()