import sys
import argparse
from yolo import YOLO, detect_video
from PIL import Image
import os
def detect_img(yolo):
    data_dir = 'data'
    for _, _, files in os.walk(data_dir):
        for name in sorted(files):
            print('-' * 40)
            print('Reading from ' + name)
            r_image = yolo.detect_image(name)
            # with open(os.path.join(data_dir, name)) as f:
            #     for i, line in tqdm(enumerate(f)):
            #         if self.data_dir[-1] == 'n' and i > 25000:
            #             break
            #         if self.data_dir[-1] == 'v' and i > 20000:
            #             break
            #         if self.data_dir[-1] == 't' and i > 10000000:
            #             break
            #         data = json.loads(line)
            #         data['form'] = ('zhidao' if 'zhidao' in name else 'search')
            #         self.raw_data.append(data)
        # img = input('Input image filename:')
        # try:
        #     image = Image.open(img)
        # except:
        #     print('Open Error! Try again!')
        #     continue
        # else:
        # r_image = yolo.detect_image(img)
        # r_image.show()
    yolo.close_session()

FLAGS = None

if __name__ == '__main__':
    # class YOLO defines the default value, so suppress any default here
    parser = argparse.ArgumentParser(argument_default=argparse.SUPPRESS)
    '''
    Command line options
    '''
    parser.add_argument(
        '--model', type=str,
        help='path to model weight file, default ' + YOLO.get_defaults("model_path")
    )

    parser.add_argument(
        '--anchors', type=str,
        help='path to anchor definitions, default ' + YOLO.get_defaults("anchors_path")
    )

    parser.add_argument(
        '--classes', type=str,
        help='path to class definitions, default ' + YOLO.get_defaults("classes_path")
    )

    parser.add_argument(
        '--gpu_num', type=int,
        help='Number of GPU to use, default ' + str(YOLO.get_defaults("gpu_num"))
    )

    parser.add_argument(
        '--image', default=False, action="store_true",
        help='Image detection mode, will ignore all positional arguments'
    )
    '''
    Command line positional arguments -- for video detection mode
    '''
    parser.add_argument(
        "--input", nargs='?', type=str,required=False,default='./path2your_video',
        help = "Video input path"
    )

    parser.add_argument(
        "--output", nargs='?', type=str, default="",
        help = "[Optional] Video output path"
    )

    FLAGS = parser.parse_args()

    if FLAGS.image:
        """
        Image detection mode, disregard any remaining command line arguments
        """
        print("Image detection mode")
        if "input" in FLAGS:
            print(" Ignoring remaining command line arguments: " + FLAGS.input + "," + FLAGS.output)
        detect_img(YOLO(**vars(FLAGS)))
    elif "input" in FLAGS:
        detect_video(YOLO(**vars(FLAGS)), FLAGS.input, FLAGS.output)
    else:
        print("Must specify at least video_input_path.  See usage with --help.")
