## @file interface.py
#  @author Vaibhav Chadha
#  @brief implements the main interface of this game
#  @date 11/09/2018
#importing necessary libraries
x = 10
y = 40
import os
os.environ['SDL_VIDEO_WINDOW_POS'] = "%d,%d" % (x,y)

import pygame, sys
import help_, highscore, theme

## @brief A Class that will contain useful functions in order for the creation of main interface
class GUI():

  ## @brief A method to create a button
  #  @details This method will make a box on the interface
  #  @param surface The background (surface) the box should be made on
  #  @param color The color of the button to be made
  #  @param Rect The coordinate of the button with the length and width
  #  @param width The width of the sides of button
  def button(Surface, color,Rect,width):
    pygame.draw.rect(Surface, color,Rect,width)

  ## @brief A method to display text
  #  @details This function will print the text on the interface
  #  @param text The text to be printed
  #  @param fontStyle The font Style of the text to be displayed
  #  @param fontSize The size of the text written
  #  @param color The color of the text
  #  @param coord The coordinate at which the text should start displaying
  #  @param surface The background (surface) the text should be printed on
  def text(text,fontStyle,fontSize,color,coord,surface):
    font = pygame.font.SysFont(fontStyle,fontSize)
    text = font.render(text,True,color)
    surface.blit(text,coord)

  def custom_text(text,fontName,fontSize,color,coord,surface):
    font = pygame.font.Font(fontName,fontSize)
    text = font.render(text,True,color)
    surface.blit(text,coord)
## @brief Makes the main interface of this game
#  @details This will output the main page of this game by using the class above
def main():
  pygame.init()
  lightBlue = [89,131,145]
  darkgray = [100,100,100]
  image1 = pygame.image.load("Images/Snake_Game_Logo_background.png")
  image2 = pygame.image.load("Images/Snake_image.png")

  #while loop required to always refresh the page
  run = True
  while run:
      game = pygame.display.set_mode((800, 610))
      game.blit(image1,(0,0))
      game.blit(image2,(550,0))
      mousepos = pygame.mouse.get_pos() #checking mouse position
      mouseclick = pygame.mouse.get_pressed()#checking mouse pressed
      pygame.display.set_caption("Lets Play")

      #Adding the play game button
      if (400 <= mousepos[0] <= 400+170 and 250 <= mousepos[1] <= 250+50 ):
        #checks if the mouse is hovering over the button
          GUI.button(game,darkgray, [400,250,170,50], 0)
          #checking if the button is clicked
          if mouseclick[0] == 1:
            theme.Themes.themes(100)        
      else:
          GUI.button(game,lightBlue, [400,250,170,50], 0)
      GUI.custom_text('Beginner',"Roboto-Light.ttf", 25,[239, 245, 224],(438,260),game)

      if (430 <= mousepos[0] <= 430+220 and 350 <= mousepos[1] <= 350+50 ):
        #checks if the mouse is hovering over the button
          GUI.button(game,darkgray, [430,350,220,50], 0)
          #checking if the button is clicked
          if mouseclick[0] == 1:
            theme.Themes.themes(70)          
      else:
          GUI.button(game,lightBlue, [430,350,220,50], 0)
      GUI.custom_text('Intermediate',"Roboto-Light.ttf", 25,[239, 245, 224],(470,357),game)

      if (400 <= mousepos[0] <= 400+180 and 450 <= mousepos[1] <= 450+50 ):
        #checks if the mouse is hovering over the button
          GUI.button(game,darkgray, [400,450,180,50], 0)
          #checking if the button is clicked
          if mouseclick[0] == 1:
            theme.Themes.themes(71)         
      else:
          GUI.button(game,lightBlue, [400,450,180,50], 0)
      GUI.custom_text('Advanced',"Roboto-Light.ttf", 25,[239, 245, 224],(435,457),game)

      if (365 <= mousepos[0] <= 365+55 and 565 <= mousepos[1] <= 565+35 ):
          if mouseclick[0] == 1:
            help_.main()
      GUI.custom_text('Help',"Roboto-Light.ttf", 25,[0,0,0],(365,565),game)
      
      if (15 <= mousepos[0] <= 15+115 and 565 <= mousepos[1] <= 565+35 ):
        if mouseclick[0] == 1:
          highscore.main()

      if (725 <= mousepos[0] <= 725+50 and 565 <= mousepos[1] <= 565+35 ):
        if mouseclick[0] == 1:
          pygame.quit()
          sys.exit()
      
      pygame.display.update()

if __name__ == "__main__":
  main()