import json, sys, traceback

def get_service_index():
    for index, value in enumerate(json_data['service']):
        if(value['name'] == sys.argv[2]):
            return index
    exit(traceback.print_exc())
    
def set_latest_version():
    service_index = get_service_index()
    json_data["service"][service_index]["latest_version"] = sys.argv[1]
    
if __name__ == '__main__':
    
    if len(sys.argv) != 3:
        exit(traceback.print_exc())
    
    file_path = "./candidate-version.json"
    
    with open(file_path, 'r') as json_file:
        json_data = json.load(json_file)
    
    set_latest_version()

    with open(file_path, 'w') as file: 
        json.dump(json_data, file, indent=4)