import configparser
import os


class AMQAdapter:

    PREFIX: str = 'cm.amq-adapter.'

    def __init__(self, config: configparser.ConfigParser):
        """
        cm.amq-adapter.service-name=amq-adapter
        cm.amq-adapter.generator-id=164
        cm.amq-adapter.route-mapping=

        :param config: config parser to read configuration values
        """
        self.generator_id = config.getint('CleverMicro-AMQ', self.PREFIX + 'generator-id', fallback=164)
        self.service_name = config.get('CleverMicro-AMQ', self.PREFIX + 'service-name', fallback='amq-python-adapter-'+self.generator_id)
        self.route_mapping = config.get('CleverMicro-AMQ', self.PREFIX + 'route-mapping', fallback=None)

    def adapter_prefix(self) -> str:
        return f"{self.service_name}-{self.generator_id}-"



class Dispatch:

    PREFIX: str = 'cm.dispatch.'

    def __init__(self, config: configparser.ConfigParser):
        """
        cm.dispatch.use-dlq=true
        cm.dispatch.use-confirms=false
        cm.dispatch.amq-host=rabbitmq
        cm.dispatch.amq-port=5672
        cm.dispatch.amq-port-tls=5671
        cm.dispatch.service-host=
        cm.dispatch.service-port=8080

        :param config: config parser to read configuration values
        """
        self.use_dlq = config.getboolean('CleverMicro-AMQ', self.PREFIX + 'use-dlq', fallback=False)
        self.use_confirms = config.getboolean('CleverMicro-AMQ', self.PREFIX + 'use-confirms', fallback=False)
        self.amq_host = config.get('CleverMicro-AMQ', self.PREFIX + 'amq-host', fallback='rabbitmq')
        self.amq_port = config.getint('CleverMicro-AMQ', self.PREFIX + 'amq-port', fallback=5672)
        self.amq_port_tls = config.getint('CleverMicro-AMQ', self.PREFIX + 'amq-port-tls', fallback=5671)
        self.service_host = config.get('CleverMicro-AMQ', self.PREFIX + 'service-host', fallback='rabbitmq')
        self.service_port = config.getint('CleverMicro-AMQ', self.PREFIX + 'service-port', fallback=8080)
        self.rabbit_mq_user = os.environ["RABBIT_MQ_USER"]
        self.rabbit_mq_password = os.environ["RABBIT_MQ_PASSWORD"]


class Backpressure:

    PREFIX: str = 'cm.backpressure.'

    def __init__(self, config: configparser.ConfigParser):
        """
        cm.backpressure.threshold=20
        cm.backpressure.time-window=3000
        cm.backpressure.management-service-url=management-service:8080

        :param config: config parser to read configuration values
        """
        self.management_service_url = config.get('CleverMicro-AMQ', self.PREFIX + 'management-service-url', fallback='management-service:8080')
        self.threshold = config.getint('CleverMicro-AMQ', self.PREFIX + 'threshold', fallback=20)
        self.time_window = config.getint('CleverMicro-AMQ', self.PREFIX + 'time-window', fallback=3000)


class AMQConfiguration:

    def __init__(self):
        config = configparser.ConfigParser()
        # Read the application.properties file
        config.read('config/application.properties')
        #
        # Add individual config areas
        #
        self.amq_adapter: AMQAdapter = AMQAdapter(config)
        self.dispatch: Dispatch = Dispatch(config)
        self.backpressure: Backpressure = Backpressure(config)