#!/usr/bin/env python
# *-----------------------------------------------------------------------*
# |                                                                       |
# |  Copyright (c) 2022 by Paul Scherrer Institute (http://www.psi.ch)    |
# |              Based on Zac great first implementation                  |
# |              Author Thierry Zamofing (thierry.zamofing@psi.ch)        |
# *-----------------------------------------------------------------------*

import logging
_log=logging.getLogger(__name__)
import epics

#from app_config import settings
#from app_utils import assert_motor_positions

class Backlight(object):
  def __init__(self, prefix: str='SAR-EXPMX:MOT_BLGT'):
    if prefix is None:
      self._sim={'pos':'out'}
      _log.info('simulated mode:{}'.format(self._sim))
      return #simulated mode
    self._mot = epics.Motor(prefix)
    self._pos = {'in':-29000,'out':0}

  def is_pos(self,strPos):
    try:
      m=self._mot
    except AttributeError:
      _log.info('simulated mode:{}'.format(strPos))
      return self._sim['pos']==strPos
    m.refresh()
    return abs(m.readback - self._pos[strPos]) < 10

  def move(self, strPos, wait=False):
    try:
      m=self._mot
    except AttributeError:
      _log.info('simulated mode:{}'.format(strPos))
      self._sim['pos']=strPos
      return
    m=self._mot
    _log.debug("backlight to {}".format(strPos))
    target=self._pos[strPos]
    m.move(target, ignore_limits=True, wait=wait)



if __name__ == "__main__":
  import time,os
  import argparse
  logging.basicConfig(level=logging.DEBUG,format='%(levelname)s:%(module)s:%(lineno)d:%(funcName)s:%(message)s ')

  parser = argparse.ArgumentParser()
  parser.add_argument('-m', '--mode', help='mode string with characters: "frgbka" for front,red,green,blue,back,all')
  parser.add_argument("-t", "--test", help="test sequence", action="store_true")

  args = parser.parse_args()
  os.environ['EPICS_CA_ADDR_LIST'] = '129.129.244.255 sf-saresc-cagw.psi.ch:5062 sf-saresc-cagw.psi.ch:5066'
  _log.info('Arguments:{}'.format(args.__dict__))

  bl = Backlight()
  if args.test:
    bl.move('in')
    time.sleep(2)
    bl.move('out')
    time.sleep(2)
    bl.move('in')
    time.sleep(2)
    bl.move('out')
    time.sleep(2)