'''
Author: SpenserCai
Date: 2023-08-20 17:28:26
version: 
LastEditors: SpenserCai
LastEditTime: 2023-08-21 17:05:30
Description: file content
'''
from fastapi import FastAPI, Body

from modules.api.models import *
from modules import scripts, shared
from modules.api import api
from modules import paths_internal
import gradio as gr
from PIL import Image
from scripts.faceswap import get_models
from scripts.swapper import UpscaleOptions, swap_face, ImageResult

def get_face_restorer(str):
    for restorer in shared.face_restorers:
        if restorer.name() == str:
            return restorer
    return None

def get_full_model(model_name):
    models = get_models()
    for model in models:
        if model.split("/")[-1] == model_name:
            return model
    return None

def roop_api(_: gr.Blocks, app: FastAPI):
    @app.post("/roop/image")
    async def roop_image(
        source_image: str = Body("",title="source face image"),
        target_image: str = Body("",title="target image"),
        face_index: list[int] = Body([0],title="face index"),
        scale: int = Body(1,title="scale"),
        upscale_visibility: float = Body(1,title="upscale visibility"),
        face_restorer: str = Body("None",title="face restorer"),
        restorer_visibility: float = Body(1,title="face restorer"),
        model: str = Body("inswapper_128.onnx",title="model"),
    ):
        s_image = api.decode_base64_to_image(source_image)
        t_image = api.decode_base64_to_image(target_image)
        f_index = set(face_index)
        up_options = UpscaleOptions(scale=scale, upscale_visibility=upscale_visibility,face_restorer=get_face_restorer(face_restorer),restorer_visibility=restorer_visibility)
        use_model = get_full_model(model)
        if use_model is None:
            Exception("Model not found")
        result = swap_face(s_image, t_image, use_model, f_index, up_options)
        return {"image": api.encode_pil_to_base64(result.image())}
    
    @app.get("/roop/models")
    async def roop_models():
        models = []
        for model in get_models():
            models.append(model.split("/")[-1])
        return {"models": models}
    
try:
    import modules.script_callbacks as script_callbacks

    script_callbacks.on_app_started(roop_api)
except:
    pass