Update use ultraball with constraint (#3760)

* Add Use Ultraball (#1)

* Add `use_ultraball` event to Event Manager

* Add use ultraball if pokeball + greatball = 0

* Add Use Ultraball if No Other Balls (#2)

* Add `use_ultraball` event to Event Manager

* Add use ultraball if pokeball + greatball = 0

* Add New Contributor

* Revert "Add Use Ultraball" (#4)

* Use Ultraball If No Other Balls (#3)

* Add `use_ultraball` event to Event Manager

* Add use ultraball if pokeball + greatball = 0

* Add New Contributor

* Remove 'use_ultraball' event.

* Remove `use_ultraball` event call

* Update & add avoid catching Pokemon if no pokeball

* Update conflict contributors

* Add get `min_ultraball_to_keep` from config file

* Improved `min_ultraball_to_keep` with condition

* Added `min_ultraball_to_keep` option

* Added `min_ultraball_to_keep` option

* Added `min_ultraball_to_keep` option

* Added `min_ultraball_to_keep` option

* Add `min_ultraball_to_keep` option

* Remove count all pokeballs

* Resolved Conflicts

* Change from `items_stock` to `ball_count`

pokemongo_bot/cell_workers/pokemon_catch_worker.py

@@ -252,7 +252,7 @@ def _do_catch(self, pokemon, encounter_id, catch_rate_by_ball, is_vip=False):
             ball_count[ball_id] = self.inventory.get(ball_id).count
 
         # use `min_ultraball_to_keep` from config if is not None
-        min_ultraball_to_keep = items_stock[ITEM_ULTRABALL]
+        min_ultraball_to_keep = ball_count[ITEM_ULTRABALL]
         if self.config.min_ultraball_to_keep is not None:
             if self.config.min_ultraball_to_keep >= 0 and self.config.min_ultraball_to_keep < min_ultraball_to_keep:
                 min_ultraball_to_keep = self.config.min_ultraball_to_keep
@@ -267,7 +267,7 @@ def _do_catch(self, pokemon, encounter_id, catch_rate_by_ball, is_vip=False):
                 self.emit_event('no_pokeballs', formatted='No usable pokeballs found!')
 
                 # use untraball if there is no other balls with constraint to `min_ultraball_to_keep`
-                if maximum_ball != ITEM_ULTRABALL and items_stock[ITEM_ULTRABALL] > min_ultraball_to_keep:
+                if maximum_ball != ITEM_ULTRABALL and ball_count[ITEM_ULTRABALL] > min_ultraball_to_keep:
                     maximum_ball = ITEM_ULTRABALL
                     continue
                 else: