from typing import Optional

import gradio

import DeepFakeAI.choices
import DeepFakeAI.globals
from DeepFakeAI import wording
from DeepFakeAI.uis import core as ui
from DeepFakeAI.uis.typing import Update

FACE_ANALYSER_DIRECTION_DROPDOWN : Optional[gradio.Dropdown] = None
FACE_ANALYSER_AGE_DROPDOWN : Optional[gradio.Dropdown] = None
FACE_ANALYSER_GENDER_DROPDOWN : Optional[gradio.Dropdown] = None


def render() -> None:
	global FACE_ANALYSER_DIRECTION_DROPDOWN
	global FACE_ANALYSER_AGE_DROPDOWN
	global FACE_ANALYSER_GENDER_DROPDOWN

	with gradio.Box():
		with gradio.Row():
			FACE_ANALYSER_DIRECTION_DROPDOWN = gradio.Dropdown(
				label = wording.get('face_analyser_direction_dropdown_label'),
				choices = DeepFakeAI.choices.face_analyser_direction,
				value = DeepFakeAI.globals.face_analyser_direction
			)
			FACE_ANALYSER_AGE_DROPDOWN = gradio.Dropdown(
				label = wording.get('face_analyser_age_dropdown_label'),
				choices = ['none'] + DeepFakeAI.choices.face_analyser_age,
				value = DeepFakeAI.globals.face_analyser_age or 'none'
			)
			FACE_ANALYSER_GENDER_DROPDOWN = gradio.Dropdown(
				label = wording.get('face_analyser_gender_dropdown_label'),
				choices = ['none'] + DeepFakeAI.choices.face_analyser_gender,
				value = DeepFakeAI.globals.face_analyser_gender or 'none'
			)
		ui.register_component('face_analyser_direction_dropdown', FACE_ANALYSER_DIRECTION_DROPDOWN)
		ui.register_component('face_analyser_age_dropdown', FACE_ANALYSER_AGE_DROPDOWN)
		ui.register_component('face_analyser_gender_dropdown', FACE_ANALYSER_GENDER_DROPDOWN)


def listen() -> None:
	FACE_ANALYSER_DIRECTION_DROPDOWN.select(lambda value: update_dropdown('face_analyser_direction', value), inputs = FACE_ANALYSER_DIRECTION_DROPDOWN, outputs = FACE_ANALYSER_DIRECTION_DROPDOWN)
	FACE_ANALYSER_AGE_DROPDOWN.select(lambda value: update_dropdown('face_analyser_age', value), inputs = FACE_ANALYSER_AGE_DROPDOWN, outputs = FACE_ANALYSER_AGE_DROPDOWN)
	FACE_ANALYSER_GENDER_DROPDOWN.select(lambda value: update_dropdown('face_analyser_gender', value), inputs = FACE_ANALYSER_GENDER_DROPDOWN, outputs = FACE_ANALYSER_GENDER_DROPDOWN)


def update_dropdown(name : str, value : str) -> Update:
	if value == 'none':
		setattr(DeepFakeAI.globals, name, None)
	else:
		setattr(DeepFakeAI.globals, name, value)
	return gradio.update(value = value)