import re
import time
import importlib
import random
from itertools import count
from math import hypot, floor

from minecraft.networking.types import BlockFace

from protocol.managers import ChunkNotLoadedException

import utils
import path
import blocks
import items
import mcdata
import mobs

class GrabSuppliesStates:
    def idle(self):
        return None

    def init(self):
        print('Started grab supplies states')
        self.checked_barrels = []

        used_slots = self.g.game.count_inventory_slots()
        print('used:', used_slots, 'total:', self.g.maximum_supply_slots)
        if used_slots >= self.g.maximum_supply_slots:
            print('Inventory is too full, aborting')
            self.state = self.cleanup
            return

        if self.supplies:
            self.state = self.check_supplies
        else:
            print('Aborting getting supplies, none specified')
            self.state = self.cleanup

    def check_supplies(self):
        # check if we need to grab anything
        for items, limits in self.supplies.items():
            minimum, maximum = limits
            print('Checking items:', items)
            num_items = self.g.game.count_items(items)
            print('Have:', num_items)

            if num_items >= minimum:
                print('Have enough, skipping')
                continue

            print('Need at least one item')
            self.state = self.find_barrels
            return

        print('Aborting, dont need any supplies')
        self.state = self.cleanup

    def find_barrels(self):
        print('Finding barrels...')
        w = self.g.world
        p = utils.pint(self.g.pos)

        self.barrels = w.find_blocks_indexed(p, blocks.BARREL_IDS)
        print('Found:', self.barrels)
        self.state = self.choose_barrel

    def choose_barrel(self):
        print('Choosing a barrel...')
        for barrel in self.barrels:
            if barrel in self.checked_barrels:
                continue
            if barrel in self.bad_barrels:
                continue

            self.barrel = barrel
            self.state = self.path_to_barrel
            return

        print('No barrels')
        self.state = self.cleanup

    def path_to_barrel(self):
        print('Finding path to barrel')
        w = self.g.world
        p = utils.pint(self.g.pos)
        c = self.g.chunks

        barrel = self.barrel

        tmp = c.get_block_at(*barrel)
        c.set_block_at(*barrel, blocks.AIR)
        navpath = w.path_to_place(p, barrel)
        c.set_block_at(*barrel, tmp)

        print('navpath:', navpath)

        if navpath:
            self.g.path = navpath[:-1]
            self.opening = self.g.path[-1]
            self.checked_barrels.append(barrel)
            self.area = barrel
            self.state = self.going_to_barrel
            self.checked_supplies = []
            return
        else:
            print('No path, blacklisting barrel')
            self.bad_barrels.append(barrel)
            self.state = self.choose_barrel

    def going_to_barrel(self):
        if utils.pint(self.g.pos) == self.opening:
            self.g.look_at = self.area
            self.state = self.open_barrel

    def open_barrel(self):
        print('Opening barrel')
        self.g.game.open_container(self.area)
        self.wait_time = 1
        self.state = self.wait

    def wait(self):
        # wait for server to send us inventory contents
        if self.wait_time > 0:
            self.wait_time -= utils.TICK
        else:
            self.state = self.choose_items

    def choose_items(self):
        print('Selecting next item')
        for items, limits in self.supplies.items():
            minimum_items, maximum_stacks = limits
            print('Checking items:', items)
            num_items = self.g.game.count_items(items)
            print('Have:', num_items)

            if num_items >= minimum_items:
                print('Have enough, skipping')
                continue

            if items in self.checked_supplies:
                print('Already checked, skipping')
                continue

            print('Need some')
            self.checked_supplies.append(items)
            self.target_items = items
            self.maximum_stacks = maximum_stacks
            self.count = 0
            self.state = self.grab_items
            return

        print('Aborting, dont need any more supplies')
        self.state = self.close_barrel

    def grab_items(self):
        if self.g.item_lock: return
        w = self.g.window

        if not w:
            print('Didnt get a window, aborting')
            self.state = self.cleanup
            return
        if w.data.window_type != mcdata.SINGLE_CHEST:
            print('Got wrong window, aborting')
            self.state = self.cleanup
            return
        used_slots = self.g.game.count_inventory_slots()
        print('used:', used_slots, 'total:', self.g.maximum_supply_slots)
        if used_slots >= self.g.maximum_supply_slots:
            print('Inventory is too full, aborting')
            self.g.game.close_window()
            self.g.look_at = None
            self.state = self.cleanup
            return

        w_info = mcdata.WINDOWS[w.data.window_type]
        w_container_slots = w_info.container

        for slot_num in w_container_slots:
            if slot_num not in w.contents:
                continue

            slot = w.contents[slot_num]

            if not slot.present:
                continue

            if slot.item_id not in self.target_items:
                continue

            if self.maximum_stacks and self.count >= self.maximum_stacks:
                break
            self.count += 1

            print('Moving', slot)

            self.g.item_lock = True
            self.g.game.click_window(slot_num, 0, 1, slot)
            return

        print('None left to move')
        self.wait_time = 0.25
        self.state = self.wait

    def close_barrel(self):
        print('Closing barrel')
        self.g.game.close_window()
        self.g.look_at = None
        self.state = self.choose_barrel

    def cleanup(self):
        self.state = self.done

    def done(self):
        # never gets ran, placeholder
        return None

    def __init__(self, global_state):
        self.g = global_state
        self.state = self.idle

        self.supplies = {}
        self.barrels = []
        self.checked_barrels = []
        self.bad_barrels = []
        self.barrel = None
        self.checked_supplies = []
        self.target_items = None
        self.maximum_stacks = 0
        self.count = 0
        self.area = None
        self.opening = None
        self.wait_time = 0

    def run(self):
        self.state()