import io
import logging
from io import BytesIO

import cv2
import numpy as np
import torch
import tritonclient.http as httpclient
from minio import Minio

from app.core.config import MINIO_IP, MINIO_ACCESS, MINIO_SECRET, MINIO_SECURE, MINIO_PORT

from app.service.utils.decorator import RunTime
from app.service.utils.generate_uuid import generate_uuid

logger = logging.getLogger()


class SuperResolution:
    def __init__(self):
        self.triton_client = httpclient.InferenceServerClient(url=f"10.1.1.150:7000")
        self.minio_client = Minio(
            f"{MINIO_IP}:{MINIO_PORT}",
            access_key=MINIO_ACCESS,
            secret_key=MINIO_SECRET,
            secure=MINIO_SECURE)

    @RunTime
    def read_image(self, image_url):
        image_data = self.minio_client.get_object(image_url.split("/", 1)[0], image_url.split("/", 1)[1])
        img = np.frombuffer(image_data.data, np.uint8)  # 转成8位无符号整型
        img = cv2.imdecode(img, cv2.IMREAD_COLOR).astype(np.float32) / 255.  # 解码
        return img

    @RunTime
    def sr_result(self, image_url, sr_xn):
        sample = self.read_image(image_url)
        sample = np.transpose(sample if sample.shape[2] == 1 else sample[:, :, [2, 1, 0]], (2, 0, 1))
        sample = torch.from_numpy(sample).float().unsqueeze(0).numpy()
        inputs = [
            httpclient.InferInput("input", sample.shape, datatype="FP32")
        ]
        inputs[0].set_data_from_numpy(sample, binary_data=True)
        results = self.triton_client.infer(model_name="super_resolution", inputs=inputs)

        sr_output = torch.from_numpy(results.as_numpy(f"output"))
        output = sr_output.data.squeeze().float().cpu().clamp_(0, 1).numpy()
        if output.ndim == 3:
            output = np.transpose(output[[2, 1, 0], :, :], (1, 2, 0))  # CHW-RGB to HCW-BGR
        output = (output * 255.0).round().astype(np.uint8)
        output_url = self.upload_img_sr(output, generate_uuid())
        return output_url

    def upload_img_sr(self, image, object_name):
        try:
            image_bytes = cv2.imencode('.jpg', image)[1].tobytes()
            image_url = f"test/{self.minio_client.put_object(f'test', f'{object_name}.jpg', io.BytesIO(image_bytes), len(image_bytes), content_type='image/png').object_name}"

            return image_url
        except Exception as e:
            logger.warning(f"upload_png_mask runtime exception : {e}")


if __name__ == '__main__':
    service = SuperResolution()
    result_url = service.sr_result("test/128_image/11.png", 4)
    print(result_url)