from typing import List, Optional

import gradio

from facefusion import state_manager, wording
from facefusion.filesystem import get_file_name, resolve_file_paths
from facefusion.processors.core import get_processors_modules
from facefusion.uis.core import register_ui_component

PROCESSORS_CHECKBOX_GROUP : Optional[gradio.CheckboxGroup] = None


label_map = {
    "face_swapper": "人脸替换",
    "face_enhancer": "人脸增强",
    "frame_enhancer": "帧率增强",
    "lip_syncer": "口形同步",
    "emotion_analyzer": "情绪分析",
    "face_debugger": "人脸调试",
    "face_masker": "人脸遮罩",
    "face_landmarker": "特征点检测",
    "age_modifier": "年龄修改",
    "deep_swapper": "深度替换",
    "face_editor": "脸部编辑",
    "expression_restorer": "表情还原",
    "frame_colorizer": "画面上色"
}


def render() -> None:
	global PROCESSORS_CHECKBOX_GROUP
	processors = state_manager.get_item('processors')  # e.g., ['face_swapper', 'lip_syncer']
	all_processors = sort_processors(processors)       # 排好序的所有模块英文名
	choices = [(label_map.get(p, p), p) for p in all_processors]
	PROCESSORS_CHECKBOX_GROUP = gradio.CheckboxGroup(
		label = wording.get('uis.processors_checkbox_group'),
		# choices = sort_processors(state_manager.get_item('processors')),
		choices = choices,
		value = state_manager.get_item('processors')
	)
	register_ui_component('processors_checkbox_group', PROCESSORS_CHECKBOX_GROUP)


def listen() -> None:
	PROCESSORS_CHECKBOX_GROUP.change(update_processors, inputs = PROCESSORS_CHECKBOX_GROUP, outputs = PROCESSORS_CHECKBOX_GROUP)


def update_processors(processors : List[str]) -> gradio.CheckboxGroup:
	for processor_module in get_processors_modules(state_manager.get_item('processors')):
		if hasattr(processor_module, 'clear_inference_pool'):
			processor_module.clear_inference_pool()

	for processor_module in get_processors_modules(processors):
		if not processor_module.pre_check():
			return gradio.CheckboxGroup()

	state_manager.set_item('processors', processors)
	sorted_processors = sort_processors(state_manager.get_item('processors'))
	choices = [(label_map.get(p, p), p) for p in sorted_processors]
	return gradio.CheckboxGroup(
		value = state_manager.get_item('processors'), 
		choices = choices
	)


def sort_processors(processors : List[str]) -> List[str]:
	available_processors = [ get_file_name(file_path) for file_path in resolve_file_paths('facefusion/processors/modules') ]
	return sorted(available_processors, key = lambda processor : processors.index(processor) if processor in processors else len(processors))