44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
import asyncio
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import copy
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from deepmerge import always_merger
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STATE = {"initialized": 0}
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ON_INPUT_CALLBACKS = []
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ON_CHANGE_CALLBACKS = []
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def register_on_change_callback(callback):
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global ON_CHANGE_CALLBACKS
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ON_CHANGE_CALLBACKS = ON_CHANGE_CALLBACKS + [callback]
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def unregister_on_change_callback(callback):
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ON_CHANGE_CALLBACK = [ x for x in ON_CHANGE_CALLBACKS if x != callback ]
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def register_on_input_callback(callback):
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global ON_INPUT_CALLBACKS
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ON_INPUT_CALLBACKS = ON_INPUT_CALLBACKS + [callback]
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def unregister_on_input_callback(callback):
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ON_INPUT_CALLBACK = [ x for x in ON_INPUT_CALLBACKS if x != callback ]
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async def mutate(delta):
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global STATE
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old_state = copy.deepcopy(STATE)
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STATE = always_merger.merge(STATE, delta)
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for callback in ON_CHANGE_CALLBACKS:
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await callback(old_state, delta)
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async def propagate(delta):
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global STATE
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old_state = copy.deepcopy(STATE)
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for callback in ON_INPUT_CALLBACKS:
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await callback(old_state, delta)
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def get_data():
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global STATE
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return STATE
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async def inc_initialized():
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global STATE
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await mutate({"initialized": STATE["initialized"]+1 })
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