# libraries
import sys

import pygame
import time
from pyglet.gl import *  # for blocky textures
import random
# other files of this project
import project_constants as const
import minefield as mf
import searching_algorithms.bfs as bfs
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


    running = False

    # basic font for user typed
    base_font = pygame.font.Font(None, 32)
    user_text1 = ''
    user_text2 = ''
    # create rectangle
    input_rect1 = pygame.Rect(200, 200, 140, 32)
    input_rect2 = pygame.Rect(200, 250, 140, 32)

    randomb = pygame.Rect(200, 300, 140, 32)
    ok = pygame.Rect(200, 350, 140, 32)
    x = pygame.Rect(180, 200, 140, 32)
    y = pygame.Rect(180, 250, 140, 32)
    okt = pygame.Rect(240, 305, 140, 32)
    randtext = pygame.Rect(220, 355, 140, 32)
    # color_active stores color(lightskyblue3) which
    # gets active when input box is clicked by user
    color_active = pygame.Color('lightskyblue3')

    # color_passive store color(chartreuse4) which is
    # color of input box.
    color_passive = pygame.Color('chartreuse4')
    color1 = color_passive
    color2 = color_passive
    while True:
        active1 = False
        active2 = False

        while running== False:
            for event in pygame.event.get():

                # if user types QUIT then the screen will close
                if event.type == pygame.QUIT:
                    pygame.quit()
                    sys.exit()

                if event.type == pygame.MOUSEBUTTONDOWN:
                    if input_rect1.collidepoint(event.pos):
                        active1 = True
                    else:
                        active1 = False
                    if input_rect2.collidepoint(event.pos):
                        active2 = True
                    else:
                        active2 = False
                    if randomb.collidepoint(event.pos):
                        running = True
                    if ok.collidepoint(event.pos):
                        user_text1 = str(random.randint(0, 9))
                        user_text2 =str(random.randint(0, 9))

                if event.type == pygame.KEYDOWN:
                    if active2 == True:
                        if event.key == pygame.K_BACKSPACE:
                            user_text2 = user_text2[:-1]
                        else:
                            user_text2 += event.unicode

                    if active1 == True:
                        if event.key == pygame.K_BACKSPACE:
                            user_text1 = user_text1[:-1]
                        else:
                            user_text1 += event.unicode


            # it will set background color of screen
            const.SCREEN.fill((255, 255, 255))

            if active1:
                color1 = color_active
            else:
                color1 = color_passive

            if active2:
                color2 = color_active
            else:
                color2 = color_passive

            # draw rectangle and argument passed which should
            # be on screen
            pygame.draw.rect(const.SCREEN, color1, input_rect1)
            pygame.draw.rect(const.SCREEN, color2, input_rect2)
            pygame.draw.rect(const.SCREEN, color_passive, ok)
            pygame.draw.rect(const.SCREEN, color_passive, randomb)
            text_surface1 = base_font.render(user_text1, True, (255, 255, 255))
            text_surface2 = base_font.render(user_text2, True, (255, 255, 255))
            xd = base_font.render("x", True, (0, 0, 0))
            yd = base_font.render("y", True, (0, 0, 0))
            okd = base_font.render("ok", True, (0, 0, 0))
            randd = base_font.render("random", True, (0, 0, 0))
            # render at position stated in arguments
            const.SCREEN.blit(xd, (x.x, x.y))
            const.SCREEN.blit(yd, (y.x, y.y))
            const.SCREEN.blit(okd, (okt.x, okt.y))
            const.SCREEN.blit(randd, (randtext.x, randtext.y))
            const.SCREEN.blit(text_surface1, (input_rect1.x + 5, input_rect1.y + 5))
            const.SCREEN.blit(text_surface2, (input_rect2.x + 5, input_rect2.y + 5))
            # set width of textfield so that text cannot get
            # outside of user's text input
            input_rect1.w = max(100, text_surface1.get_width() + 10)
            input_rect2.w = max(100, text_surface2.get_width() + 10)

            # display.flip() will update only a portion of the
            # screen to updated, not full area
            pygame.display.flip()

            # clock.tick(60) means that for every second at most
            # 60 frames should be passed.
            clock.tick(60)
        toy=int(user_text1)
        tox = int(user_text2)
        action_sequence = bfs.graphsearch(
            initial_state=bfs.State(
                row=minefield.agent.position[0],
                column=minefield.agent.position[1],
                direction=minefield.agent.direction),
            minefield=minefield, tox=tox, toy = toy)
        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:
                running = False
                time.sleep(const.ACTION_INTERVAL)
                #'for event in pygame.event.get():
                #    if event.type == pygame.QUIT:
                #        running = False





if __name__ == "__main__":
    main()