import pygame
from sprites.cell import Cell, CELL_SIZE
from sprites.house import House
from sprites.landfill import Landfill
from config import PLAY_HEIGHT, PLAY_WIDTH

GC_CAPACITY = 10

class Garbage_collector(Cell):

    def __init__(self, x, y):
        Cell.__init__(self, x, y)
        self.image = pygame.image.load("images/garbage_collector.png")
        self.move_options = {
            "up": lambda forbidden: ('y', self.y - 1) if (self.x, self.y - 1) not in forbidden and self.y - 1 >= 0 else ('y', self.y),
            "down": lambda forbidden: ('y', self.y + 1) if (self.x, self.y + 1) not in forbidden and self.y + 1 < PLAY_HEIGHT // CELL_SIZE else ('y', self.y),
            "left": lambda forbidden: ('x', self.x - 1) if (self.x - 1, self.y) not in forbidden and self.x - 1 >= 0 else ('x', self.x),
            "right": lambda forbidden: ('x', self.x + 1) if (self.x + 1, self.y) not in forbidden and self.x + 1 < PLAY_WIDTH // CELL_SIZE else ('x', self.x)
        }
        self.trash_space_taken = {
            "plastic": 0,
            "glass": 0,
            "metal": 0
        }
        self.trash_collected = 0

    def move(self, direction, forbidden):
        (destination, value) = self.move_options[direction](forbidden)
        if(destination is 'x'):
            self.x = value
        elif(destination is 'y'):
            self.y = value
        self.update()

    def collect_trash(self, house):
        global GC_CAPACITY
        rubbish = house.get_rubbish_data()
        to_collect = rubbish.copy()

        dic = {
            0: "plastic",
            1: "glass",
            2: "metal"
        }

        for i in range(0,3):

            if(rubbish[i] > GC_CAPACITY - self.trash_space_taken.get(dic[i])):
                to_collect[i] = GC_CAPACITY - self.trash_space_taken.get(dic[i])
            self.trash_space_taken[dic[i]] += to_collect[i]
            self.trash_collected += to_collect[i]
            print("GARBAGE COLLECTOR>> Took "+str(to_collect[i])+" "+dic[i])

        house.give_away_rubbish(to_collect[0], to_collect[1], to_collect[2])

    def throw_trash(self, landfill):
        landfill_type = landfill.get_type()
        print("GARBAGE COLLECTOR>> REMOVED "+landfill_type)
        self.trash_space_taken[landfill_type] = 0

    def select_object(self, interactables):
        print("### INTERACTION ###")
        for item in interactables:
            if(type(item)==House):
                item_x, item_y = item.get_coordinates()
                if((abs(self.x - item_x)==1 and abs(self.y - item_y)==0) or (abs(self.x - item_x)==0 and abs(self.y - item_y)==1)):
                    self.collect_trash(item)
            elif(type(item)==Landfill):
                item_x, item_y = item.get_coordinates()
                if((abs(self.x - item_x)==1 and abs(self.y - item_y)==0) or (abs(self.x - item_x)==0 and abs(self.y - item_y)==1)):
                    self.throw_trash(item)

    def get_collect_data(self):
        return self.trash_collected

    def get_space_data(self):
        return self.trash_space_taken