# -*- encoding: UTF-8 -*-

'''Cartesian control: Arm trajectory example'''
''' This example is only compatible with NAO '''

import argparse
import motion
import almath
from naoqi import ALProxy


def main(robotIP, PORT=9559):
    ''' Example showing a path of two positions
    Warning: Needs a PoseInit before executing
    '''

    motionProxy  = ALProxy("ALMotion", robotIP, PORT)
    postureProxy = ALProxy("ALRobotPosture", robotIP, PORT)

    # Wake up robot
    motionProxy.wakeUp()

    # Send robot to Stand Init
    postureProxy.goToPosture("StandInit", 0.5)

    effector   = "LArm"
    frame      = motion.FRAME_TORSO
    axisMask   = almath.AXIS_MASK_VEL # just control position
    useSensorValues = False

    path = []
    currentTf = motionProxy.getTransform(effector, frame, useSensorValues)
    targetTf  = almath.Transform(currentTf)
    targetTf.r1_c4 += 0.03 # x
    targetTf.r2_c4 += 0.03 # y

    path.append(list(targetTf.toVector()))
    path.append(currentTf)

    # Go to the target and back again
    times      = [2.0, 4.0] # seconds

    motionProxy.transformInterpolations(effector, frame, path, axisMask, times)

    # Go to rest position
    motionProxy.rest()

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--ip", type=str, default="127.0.0.1",
                        help="Robot ip address")
    parser.add_argument("--port", type=int, default=9559,
                        help="Robot port number")

    args = parser.parse_args()
    main(args.ip, args.port)