'''
    Tetris 101:
    https://strategywiki.org/wiki/Tetris/Getting_Started
    https://tetris.com/play-tetris
'''

import pygame

from util.ConfigurationManager import ConfigurationManager
from util.PieceGenerator import PieceGenerator 
from entity.Well import Well

def draw(screen, objects):
    # draw window bg
    bg_color = pygame.Color(ConfigurationManager.configuration["window"]["bg-color"])
    screen.fill(bg_color)

    # draw all game objects
    for object in objects:
        object.draw(screen)

    # update display
    pygame.display.update()

def main():
    ConfigurationManager.load()
    pygame.init()

    win_width = ConfigurationManager.configuration["window"]["width"]
    win_height = ConfigurationManager.configuration["window"]["height"]
    win_icon = ConfigurationManager.configuration["window"]["icon"]
    win_title = ConfigurationManager.configuration["window"]["title"]
    fps = ConfigurationManager.configuration["engine"]["fps"]
    tile_size = ConfigurationManager.configuration["engine"]["tile-size"]

    screen = pygame.display.set_mode((win_width, win_height))
    clock = pygame.time.Clock()
    loaded_icon = pygame.image.load(win_icon)

    pygame.display.set_caption(win_title)
    pygame.display.set_icon(loaded_icon)

    current_piece = PieceGenerator.get_piece((300, 100))
    pieces = [current_piece]
    well = Well((280, 80))

    is_running = True
    while is_running:
        clock.tick(fps)

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                is_running = False
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    current_piece.rotate()
                if event.key == pygame.K_LEFT:
                    current_piece.move((-tile_size, 0))
                if event.key == pygame.K_RIGHT:
                    current_piece.move((tile_size, 0))
                if event.key == pygame.K_UP:
                    current_piece.move((0, -tile_size))
                if event.key == pygame.K_DOWN:
                    current_piece.move((0, tile_size))
                if event.key == pygame.K_z:
                    current_piece = PieceGenerator.get_piece((300, 100))
                    pieces.append(current_piece)

        draw(screen, pieces + [well])

    pygame.quit()

# start main function
main()