import logging
import os

import gradio as gr
import numpy as np
from PIL import Image
from huggingface_hub import hf_hub_url, hf_hub_download

from inference.face_detector import StatRetinaFaceDetector
from inference.model_pipeline import VSNetModelPipeline
from inference.onnx_model import ONNXModel

logging.basicConfig(
    format='%(asctime)s %(levelname)-8s %(message)s',
    level=logging.INFO,
    datefmt='%Y-%m-%d %H:%M:%S')

MODEL_IMG_SIZE = 512
usage_count = 82  # Based on hugging face logs
def load_model():
    REPO_ID = "Podtekatel/ArcaneVSK2"
    FILENAME_OLD = "arcane_exp_230_ep_136_512_res_V2_lighter.onnx"

    global model_old
    global pipeline_old

    # Old model
    model_path = hf_hub_download(REPO_ID, FILENAME_OLD, use_auth_token=os.getenv('HF_TOKEN'))
    model_old = ONNXModel(model_path)

    pipeline_old = VSNetModelPipeline(model_old, StatRetinaFaceDetector(MODEL_IMG_SIZE), background_resize=1024, no_detected_resize=1024)

    return model_old
load_model()

def inference(img):
    img = np.array(img)
    out_img = pipeline_old(img)

    out_img = Image.fromarray(out_img)
    global usage_count
    usage_count += 1
    logging.info(f'Usage count is {usage_count}')
    return out_img


title = "ARCNStyleTransferV2"
description = "Gradio Demo for Arcane Season 1 style transfer. To use it, simply upload your image, or click one of the examples to load them. Press ❤️ if you like this space!"
article = "This is one of my successful experiments on style transfer. I've built my own pipeline, generator model and private dataset to train this model<br>" \
          "" \
          "" \
          "" \
          "Model pipeline which used in project is improved CartoonGAN.<br>" \
          "This model was trained on RTX 2080 Ti 3 days with batch size 7.<br>" \
          "Model weights 80 MB in ONNX fp32 format, infers 100 ms on GPU and 600 ms on CPU at 512x512 resolution.<br>" \
          "If you want to use this app or integrate this model into yours, please contact me at email 'neuromancer.ai.lover@gmail.com'."

imgs_folder = 'demo'
examples = [[os.path.join(imgs_folder, img_filename)] for img_filename in sorted(os.listdir(imgs_folder))]

demo = gr.Interface(
    fn=inference,
    inputs=[gr.Image(type="pil")],
    outputs=gr.Image(type="pil"),
    title=title,
    description=description,
    article=article,
    examples=examples)
demo.queue()
demo.launch()