from datetime import datetime, timezone
from uuid import uuid4

from xsdata.models.datatype import XmlDate

from shapeshifter_uftp import ShapeshifterDsoService
from shapeshifter_uftp.uftp import (
    AvailableRequested,
    FlexOrder,
    FlexOrderISP,
    FlexRequest,
    FlexRequestISP,
)


class DemoDSO(ShapeshifterDsoService):
    def process_d_prognosis(self, message):
        print(f"Received a message: {message}")

    def process_dso_portfolio_query_response(self, message):
        print(f"Received a message: {message}")

    def process_dso_portfolio_update_response(self, message):
        print(f"Received a message: {message}")

    def process_flex_offer(self, message):
        print(f"Received a message: {message}")

        # Example of how to send a new message after
        # processing an incoming message
        agr_client = self.agr_client(message.sender_domain)
        agr_client.send_flex_order(
            FlexOrder(
                isp_duration=message.isp_duration,
                time_zone=message.time_zone,
                period=message.period,
                congestion_point=message.congestion_point,
                flex_offer_message_id=message.message_id,
                isps=[
                    FlexOrderISP(
                        power=isp.power,
                        start=isp.start,
                        duration=isp.duration,
                    )
                    for isp in message.offer_options[0].isps
                ],
                price=message.offer_options[0].price,
                currency="EUR",
                order_reference="demo-order",
                activation_factor=1.0
            )
        )

    def process_flex_offer_revocation(self, message):
        print(f"Received a message: {message}")

    def process_flex_order_response(self, message):
        print(f"Received a message: {message}")

    def process_flex_request_response(self, message):
        print(f"Received a message: {message}")

    def process_flex_reservation_update_response(self, message):
        print(f"Received a message: {message}")

    def process_flex_settlement_response(self, message):
        print(f"Received a message: {message}")

    def process_metering(self, message):
        print(f"Received a message: {message}")


# The Key Lookup function is used to look up the
# (public) signing key of other senders. You either
# implement a database-lookup or query to the GOPACS
# Shapeshifter Address Book here, or  use some other method
# to find the appropriate public keys for the other
# participants.
def key_lookup(sender_domain, sender_role):
    known_senders = {
        ("aggregator.demo", "AGR"): "kSyHrhqSGtSgLegJW1Rqib3sHfL9SdLlVE6qRrexfLc=",
        ("cro.demo", "CRO"): "ySUYU87usErRFKGJafwvVDLGhnBVJCCNYfQvmwv8ObM=",
    }
    return known_senders.get((sender_domain, sender_role))


# The Endpoint Lookup function is used to look up the
# endpoint URL for other participants.
def endpoint_lookup(sender_domain, sender_role):
    known_senders = {
        ("aggregator.demo", "AGR"): "http://localhost:8080/shapeshifter/api/v3/message",
        ("cro.demo", "CRO"): "http://localhost:8082/shapeshifter/api/v3/message",
    }
    return known_senders.get((sender_domain, sender_role))


if __name__ == "__main__":

    # Create a DemoDSO object that contains all the logic for
    # responding to messages. In our case, we simply print incoming
    # messages.
    dso = DemoDSO(
        sender_domain="dso.demo",
        signing_key="OLgpAnYyZmskhCKGmFAj1tysKgGjwehK0msC6NoAg9g2xNur+IAFTq1uyOuIGD9nl1J9Cy26UPQakwjZ8sNZ5w==",
        key_lookup_function=key_lookup,
        endpoint_lookup_function=endpoint_lookup,
        port=8081,
    )

    # Start the DSO service in a separate thread
    dso.run_in_thread()

    # Create a client object to talk to an aggregator at the given domain.
    agr_client = dso.agr_client("aggregator.demo")

    # Prepare a FlexRequest message
    flex_request_message = FlexRequest(
        isp_duration="PT15M",
        period=XmlDate(2023, 1, 1),
        congestion_point="ean.123456789012",
        isps=[
            FlexRequestISP(
                disposition=AvailableRequested.REQUESTED,
                min_power=0,
                max_power=10,
                start=1,
                duration=1,
            )
        ],
        revision=1,
        expiration_date_time=datetime.now(timezone.utc).isoformat(),
        contract_id=str(uuid4()),
        service_type="MyService",
    )

    # As a demo, press enter to send another FlexRequset message.
    while True:
        try:
            input("Press return to send a FlexRequest message to the AGR")
            response = agr_client.send_flex_request(flex_request_message)
            print(f"Response was: {response}")
        except:
            dso.stop()
            break