import pygame
import argparse
import time
from os.path import exists

from pygame.locals import QUIT
from simulation.interface import Interface
from simulation.board import Board
from simulation.player import Player
from simulation.logic.main import Blob_Manager


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--height', type=int, default=40,
                        help='Board height resolution (default = 40)')
    parser.add_argument('--width', type=int, default=100,
                        help='Board width resolution (default = 100)')
    parser.add_argument('--scale', type=int, default=10,
                        help='Scaling from board resolution to window resolution (default = x10)')
    parser.add_argument('--init_from', type=str,
                        help='Initialize game from a save. Pass the filename in saved dir without extension.')
    parser.add_argument('--save_dir', type=str, default="save/",
                        help='Directory where saves are stored.')
    parser.add_argument('--computing_ratio', type=int, default=1,
                        help='how many times computing loop is done before drawing GUI')

    args = parser.parse_args()

    if args.init_from is not None:
        init_scouters = 0
    else:
        init_scouters = 3

    board = Board(args.width, args.height)
    blob = Blob_Manager(board, init_scouters)
    player = Player(board, blob)

    if args.init_from is not None:
        assert exists(args.save_dir + args.init_from + ".board") \
               and exists(args.save_dir + args.init_from + ".blob") \
               and exists(args.save_dir + args.init_from + ".player")

        board.load(args.save_dir + args.init_from + ".board")
        blob.load(args.save_dir + args.init_from + ".blob")
        player.load(args.save_dir + args.init_from + ".player")

    gui = Interface(board, player, blob, args.scale, args.save_dir)

    init_counter = 100
    timer = time.time()
    counter = init_counter

    init_computing_ratio = args.computing_ratio
    ended = False
    while not ended:
        computing_ratio = init_computing_ratio
        while computing_ratio > 0:
            if gui.play or gui.do_step:
                blob.move()
                board.next_turn()
                gui.do_step = False

            for event in pygame.event.get():
                if event.type == QUIT:
                    ended = True
                else:
                    gui.event_listener(event)

            computing_ratio -= 1

        gui.draw()

        pygame.time.wait(10)

        counter -= 1
        if counter == 0:
            timing = time.time() - timer
            print("Loop mean time : {:.3f}s per iteration".format(timing / init_counter))
            counter = init_counter
            timer = time.time()


if __name__ == "__main__":
    main()