import base64
import json
import logging
import os
import sys
import time
import traceback
from glob import glob
import cv2
import numpy as np
os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
import tensorflow as tf
from flask import Flask, request
sys.path.append(os.path.dirname(os.path.abspath(__file__)) + "/../")
from captcha_classify.inference_classify import classify
from captcha_classify.model import cnn_net_tiny
from utils import pil_resize, np2bytes, request_post, bytes2np, base64_decode, image_to_str, str_to_image

logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
tf.compat.v1.disable_eager_execution()
sess = tf.compat.v1.Session(graph=tf.Graph())

package_dir = os.path.abspath(os.path.dirname(__file__))
model_path = package_dir + "/models/e262-acc0.81-classify.h5"
image_shape = (128, 128, 1)
class_num = 3

# 接口配置
app = Flask(__name__)


@app.route('/cac', methods=['POST'])
def cac():
    start_time = time.time()
    logging.info("into cac_interface cac")
    try:
        # 接收网络数据
        if not request.form:
            logging.info("cac no data!")
            return json.dumps({"data": "", "success": 0})
        data = request.form.get("data")
        logging.info("cac_interface get data time" + str(time.time()-start_time))

        # 加载模型
        cac_model = globals().get("global_cac_model")
        if cac_model is None:
            print("=========== init cac model ===========")
            cac_model = CacModels().get_model()
            globals().update({"global_cac_model": cac_model})

        # 数据转换
        data = base64_decode(data)
        image_np = bytes2np(data)
        # 预测
        result = classify(image_np, cac_model, sess)
        logging.info('cac result ' + str(result))
        if result is None:
            return json.dumps({"data": "", "success": 0})
        return json.dumps({"data": result, "success": 1})
    except:
        traceback.print_exc()
        return json.dumps({"data": "", "success": 0})
    finally:
        logging.info("cac interface finish time " + str(time.time()-start_time))


class CacModels:
    def __init__(self):
        with sess.as_default():
            with sess.graph.as_default():
                self.model = cnn_net_tiny(input_shape=image_shape, output_shape=class_num)
                self.model.load_weights(model_path)

    def get_model(self):
        return self.model


def test_cac_model(from_remote=True):
    paths = glob("D:/Project/captcha/data/chinese/1.jpg")
    for file_path in paths:
        img_np = cv2.imread(file_path)
        h, w = img_np.shape[:2]
        file_bytes = np2bytes(img_np)
        file_base64 = base64.b64encode(file_bytes)

        if from_remote:
            file_json = {"data": file_base64}
            # _url = "http://192.168.2.102:17061/cac"
            _url = "http://127.0.0.1:17062/cac"
            result = json.loads(request_post(_url, file_json))
            if result.get("success"):
                result = int(result.get("data"))
                cv2.imshow("img_np", img_np)
                print("classify result", result)
                cv2.waitKey(0)
            else:
                print("failed!")


if __name__ == "__main__":
    # app.run(host='127.0.0.1', port=17062, debug=False)
    test_cac_model()