# the original openpose script
# command line argument:
# --image_dir: the folder that contains the input images to be read in
# --write_images: the folder to store the image output with poses
# --write_json: the folder to store the json output
# --video: the input video to be read in
# --write_video: the folder to store the video output with poses
# --camera: to select which camera to use (2 for our Intel realsense RGB camera)

# From Python
# It requires OpenCV installed for Python
import sys
import cv2
import os
from sys import platform
import argparse

try:
    # Import Openpose (Windows/Ubuntu/OSX)
    dir_path = os.path.dirname(os.path.realpath(__file__))
    try:
        # Change these variables to point to the correct folder (Release/x64 etc.)
        sys.path.append(dir_path + '/../openpose/bin/python/openpose/Release');
        os.environ['PATH']  = os.environ['PATH'] + ';' + dir_path + '/../openpose/x64/Release;' +  dir_path + '/../openpose/bin;'
        import pyopenpose as op
    except ImportError as e:
        print('Error: OpenPose library could not be found. Did you enable `BUILD_PYTHON` in CMake and have this Python script in the right folder?')
        raise e

    # Flags
    parser = argparse.ArgumentParser()
    args = parser.parse_known_args()

    # Custom Params (refer to include/openpose/flags.hpp for more parameters)
    params = dict()
    params["model_folder"] = "openpose/models/"

    # Add others in path?
    for i in range(0, len(args[1])):
        curr_item = args[1][i]
        if i != len(args[1])-1: next_item = args[1][i+1]
        else: next_item = "1"
        if "--" in curr_item and "--" in next_item:
            key = curr_item.replace('-','')
            if key not in params:  params[key] = "1"
        elif "--" in curr_item and "--" not in next_item:
            key = curr_item.replace('-','')
            if key not in params: params[key] = next_item

    # Construct it from system arguments
    # op.init_argv(args[1])
    # oppython = op.OpenposePython()

    # Starting OpenPose
    opWrapper = op.WrapperPython(op.ThreadManagerMode.Synchronous)
    opWrapper.configure(params)
    opWrapper.execute()

except Exception as e:
    print(e)
    sys.exit(-1)