from typing import Tuple, List

import pygame

from common.constants import GRID_CELL_PADDING, GRID_CELL_SIZE
from common.constants import ROWS, COLUMNS, LEFT, RIGHT, UP, DOWN

directions = {
    LEFT: (0, -1),
    RIGHT: (0, 1),
    UP: (-1, 0),
    DOWN: (1, 0)
}


def draw_text(text, color, surface, x, y, text_size=30, is_bold=False):
    if is_bold:
        font = pygame.font.Font('resources/fonts/Poppins-SemiBold.ttf', text_size)
    else:
        font = pygame.font.Font('resources/fonts/Poppins-Regular.ttf', text_size)
    textobj = font.render(text, 1, color)
    textrect = textobj.get_rect()
    textrect.topleft = (x, y)
    surface.blit(textobj, textrect)


def print_numbers():
    display_surface = pygame.display.get_surface()
    font = pygame.font.SysFont('Arial', 16)

    for row_index in range(ROWS):
        for col_index in range(COLUMNS):
            x = (GRID_CELL_PADDING + GRID_CELL_SIZE) * col_index + GRID_CELL_PADDING + 7
            y = (GRID_CELL_PADDING + GRID_CELL_SIZE) * row_index + GRID_CELL_PADDING + 16
            display_surface.blit(font.render(f'[{col_index}, {row_index}]', True, (255, 0, 0)), (x, y))
    pygame.display.update()


# parse array index to screen x or y coordinate
def parse_cord(cord):
    return (GRID_CELL_PADDING + GRID_CELL_SIZE) * cord + GRID_CELL_PADDING + 7


def castle_neighbors(map, castle_bottom_right_row, castle_bottom_right_col):
    neighbors = []
    for row_add in range(-2, 2):
        new_row = castle_bottom_right_row + row_add
        if 0 <= new_row <= len(map) - 1:
            for col_add in range(-2, 2):
                new_col = castle_bottom_right_col + col_add
                if 0 <= new_col <= len(map) - 1:
                    if (new_col == castle_bottom_right_col - 1 and new_row == castle_bottom_right_row - 1) \
                            or (new_col == castle_bottom_right_col and new_row == castle_bottom_right_row - 1) \
                            or (new_col == castle_bottom_right_col - 1 and new_row == castle_bottom_right_row) \
                            or (new_col == castle_bottom_right_col and new_row == castle_bottom_right_row):
                        continue
                    neighbors.append((new_col, new_row))
    return neighbors


def find_neighbours(grid: List[List[str]], col: int, row: int) -> List[Tuple[int, int]]:
    dr = [-1, 1, 0, 0]
    dc = [0, 0, -1, 1]

    neighbours = []

    for i in range(4):
        rr = row + dr[i]
        cc = col + dc[i]

        if rr < 0 or cc < 0: continue
        if rr >= ROWS or cc >= COLUMNS: continue
        if grid[rr][cc] not in ['g', 's', '.']: continue
        neighbours.append((rr, cc))

    return neighbours