from ..core.SyslabUnit import SyslabUnit


class Photovoltaics(SyslabUnit):
    """The Photovoltaics class represents a photovoltaic panel array in SYSLAB.
    The Photovoltaics class is instantiated using a string with the unique name of the dumpload, ie. 'which'

    A full list of available panel arrays can be found by calling 'Photovoltaics.getAvailablePhotovoltaics()'

    Alternatively, the user may specify a host and port to connect to via the *host* and *port* arguments.
    """

    __PHOTOVOLTAICS = {
            'pv319': ('syslab-24.syslab.dk', '8080', 'pv319'),
            'pv715': ('syslab-10.syslab.dk', '8080', 'pv715'),
            'pv117': ('syslab-07.syslab.dk', '8080', 'pv117'),
            'simlab-03': ('192.168.0.103', '8080', 'pv715'),
            'simlab-13': ('192.168.0.113', '8080', 'pv319'),
            'vpv319': ('simlab-24', '8080', 'pv319'),
            'vpv715': ('simlab-10', '8080', 'pv715'),
    }

    def __init__(self, which=None, host=None, port=None, unitname=None):

        baseurl = 'http://{host}:{port}/typebased_WebService_PV/PVSystemWebService/{unit_name}/'
        super().__init__(
            baseurl=baseurl,
            which=which,
            units=self.__PHOTOVOLTAICS,
            host=host,
            port=port,
            unit_name=unitname,
            unit_type="Photovoltaics")

    def getACActivePower(self):
        return self._request_resource('getACActivePower')

    def getACReactivePower(self):
        return self._request_resource('getACReactivePower')

    def getPacLimit(self):
        return self._request_resource('getPacLimit')

    def getQSetpoint(self):
        return self._request_resource('getQSetpoint')

    def getRatedPower(self):
        return self._request_resource('getRatedP')

    def getName(self):
        return self._request_resource('getSystemName')

    def setPacLimit(self, setPoint):
        return self._request_resource('setPacLimit', setPoint, 'put')

    def setQSetpoint(self, Q):
        return self._request_resource('setQ', Q, 'put')

    @staticmethod
    def getAvailablePhotovoltaics():
        return list(Photovoltaics.__PHOTOVOLTAICS.keys())