from typing import Optional
import gradio

import deepfuze.globals
import deepfuze.choices
from deepfuze.typing import VideoMemoryStrategy
from deepfuze import wording

VIDEO_MEMORY_STRATEGY_DROPDOWN : Optional[gradio.Dropdown] = None
SYSTEM_MEMORY_LIMIT_SLIDER : Optional[gradio.Slider] = None


def render() -> None:
	global VIDEO_MEMORY_STRATEGY_DROPDOWN
	global SYSTEM_MEMORY_LIMIT_SLIDER

	VIDEO_MEMORY_STRATEGY_DROPDOWN = gradio.Dropdown(
		label = wording.get('uis.video_memory_strategy_dropdown'),
		choices = deepfuze.choices.video_memory_strategies,
		value = deepfuze.globals.video_memory_strategy
	)
	SYSTEM_MEMORY_LIMIT_SLIDER = gradio.Slider(
		label = wording.get('uis.system_memory_limit_slider'),
		step =deepfuze.choices.system_memory_limit_range[1] - deepfuze.choices.system_memory_limit_range[0],
		minimum = deepfuze.choices.system_memory_limit_range[0],
		maximum = deepfuze.choices.system_memory_limit_range[-1],
		value = deepfuze.globals.system_memory_limit
	)


def listen() -> None:
	VIDEO_MEMORY_STRATEGY_DROPDOWN.change(update_video_memory_strategy, inputs = VIDEO_MEMORY_STRATEGY_DROPDOWN)
	SYSTEM_MEMORY_LIMIT_SLIDER.release(update_system_memory_limit, inputs = SYSTEM_MEMORY_LIMIT_SLIDER)


def update_video_memory_strategy(video_memory_strategy : VideoMemoryStrategy) -> None:
	deepfuze.globals.video_memory_strategy = video_memory_strategy


def update_system_memory_limit(system_memory_limit : int) -> None:
	deepfuze.globals.system_memory_limit = system_memory_limit