# libraries

import pygame
import time
from pyglet.gl import *  # for blocky textures

# other files of this project
import project_constants as const
import minefield as mf
import searching_algorithms.a_star as a_star
from display_assets import blit_graphics


def main():

    pygame.init()
    pygame.display.set_caption(const.V_NAME_OF_WINDOW)

    # for blocky textures
    glEnable(GL_TEXTURE_2D)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)

    # FPS clock
    clock = pygame.time.Clock()

    # create an instance of Minefield, pass necessary data
    minefield = mf.Minefield(const.MAP_RANDOM_10x10)

    # get sequence of actions found by BFS algorithm
    action_sequence = a_star.graphsearch(
        initial_state=a_star.State(
            row=minefield.agent.position[0],
            column=minefield.agent.position[1],
            direction=const.Direction.UP),
        minefield=minefield)

    running = True
    while running:

        # FPS control
        clock.tick(const.V_FPS)

        # graphics (from display_assets)
        blit_graphics(minefield)

        # make the next move from sequence of actions
        if any(action_sequence):

            action = action_sequence.pop(0)

            if action == const.Action.ROTATE_LEFT:
                minefield.agent.rotate_left()
            elif action == const.Action.ROTATE_RIGHT:
                minefield.agent.rotate_right()
            elif action == const.Action.GO:
                minefield.agent.go()

            time.sleep(const.ACTION_INTERVAL)

        else:

            for event in pygame.event.get():

                if event.type == pygame.QUIT:
                    running = False


if __name__ == "__main__":
    main()