import unittest

from BaseClasses import CollectionState, World
from Items import ItemFactory


class TestBase(unittest.TestCase):
    world: World
    _state_cache = {}

    def get_state(self, items):
        if (self.world, tuple(items)) in self._state_cache:
            return self._state_cache[self.world, tuple(items)]
        state = CollectionState(self.world)
        for item in items:
            item.advancement = True
            state.collect(item)
        state.sweep_for_events()
        self._state_cache[self.world, tuple(items)] = state
        return state

    def run_location_tests(self, access_pool):
        for location, access, *item_pool in access_pool:
            items = item_pool[0]
            all_except = item_pool[1] if len(item_pool) > 1 else None
            with self.subTest(msg="Reach Location", location=location, access=access, items=items, all_except=all_except):
                if all_except and len(all_except) > 0:
                    items = self.world.itempool[:]
                    items = [item for item in items if item.name not in all_except and not ("Bottle" in item.name and "AnyBottle" in all_except)]
                    items.extend(ItemFactory(item_pool[0], 1))
                else:
                    items = ItemFactory(items, 1)
                state = self.get_state(items)

                self.assertEqual(self.world.get_location(location, 1).can_reach(state), access)


            #check for partial solution
            if not all_except and access:# we are not supposed to be able to reach location with partial inventory
                for missing_item in item_pool[0]:
                    with self.subTest(msg="Location reachable without required item", location=location,
                                      items=item_pool[0], missing_item=missing_item):
                        new_items = item_pool[0].copy()
                        new_items.remove(missing_item)
                        items = ItemFactory(new_items, 1)
                        state = self.get_state(items)
                        self.assertEqual(self.world.get_location(location, 1).can_reach(state), False)

    def run_entrance_tests(self, access_pool):
        for entrance, access, *item_pool in access_pool:
            items = item_pool[0]
            all_except = item_pool[1] if len(item_pool) > 1 else None
            with self.subTest(msg="Reach Entrance", entrance=entrance, access=access, items=items, all_except=all_except):
                if all_except and len(all_except) > 0:
                    items = self.world.itempool[:]
                    items = [item for item in items if item.name not in all_except and not ("Bottle" in item.name and "AnyBottle" in all_except)]
                    items.extend(ItemFactory(item_pool[0], 1))
                else:
                    items = ItemFactory(items, 1)
                state = self.get_state(items)

                self.assertEqual(self.world.get_entrance(entrance, 1).can_reach(state), access)

            #check for partial solution
            if not all_except and access:# we are not supposed to be able to reach location with partial inventory
                for missing_item in item_pool[0]:
                    with self.subTest(msg="Entrance reachable without required item", entrance=entrance,
                                      items=item_pool[0], missing_item=missing_item):
                        new_items = item_pool[0].copy()
                        new_items.remove(missing_item)
                        items = ItemFactory(new_items, 1)
                        state = self.get_state(items)
                        self.assertEqual(self.world.get_entrance(entrance, 1).can_reach(state), False)