#
# This file is part of the PyMeasure package.
#
# Copyright (c) 2013-2021 PyMeasure Developers
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#

import numpy
import time

from pymeasure.adapters import FakeAdapter
from pymeasure.instruments import Instrument


class Mock(Instrument):
    """Mock instrument for testing."""

    def __init__(self, wait=.1, **kwargs):
        super().__init__(
            FakeAdapter,
            "Mock instrument",
            includeSCPI=False,
            **kwargs
        )
        self._wait = wait
        self._tstart = 0
        self._voltage = 10
        self._output_voltage = 0
        self._time = 0
        self._wave = self.wave
        self._units = {'voltage': 'V',
                       'output_voltage': 'V',
                       'time': 's',
                       'wave': 'a.u.'}

    def get_time(self):
        """Get elapsed time"""
        if self._tstart == 0:
            self._tstart = time.time()
        self._time = time.time() - self._tstart
        return self._time

    def set_time(self, value):
        """
        Wait for the timer to reach the specified time.
        If value = 0, reset.
        """
        if value == 0:
            self._tstart = 0
        else:
            while self.time < value:
                time.sleep(0.001)

    def reset_time(self):
        """Reset the timer to 0 s."""
        self.time = 0
        self.get_time()

    time = property(fget=get_time, fset=set_time)

    def get_wave(self):
        """Get wave."""
        return float(numpy.sin(self.time))

    wave = property(fget=get_wave)

    def get_voltage(self):
        """Get the voltage."""
        time.sleep(self._wait)
        return self._voltage

    def __getitem__(self, keys):
        return keys

    voltage = property(fget=get_voltage)

    def get_output_voltage(self):
        return self._output_voltage

    def set_output_voltage(self, value):
        """Set the voltage."""
        time.sleep(self._wait)
        self._output_voltage = value

    output_voltage = property(fget=get_output_voltage, fset=set_output_voltage)