# coding=utf8
## Copyright (c) 2020 Arseniy Kuznetsov
##
## This program is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License
## as published by the Free Software Foundation; either version 2
## of the License, or (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.


from mktxp.collector.base_collector import BaseCollector
from mktxp.flow.processor.output import BaseOutputProcessor
from mktxp.datasource.connection_ds import IPConnectionDatasource, IPConnectionStatsDatasource


class IPConnectionCollector(BaseCollector):
    ''' IP Connection Metrics collector
    '''    
    @staticmethod
    def collect(router_entry):
        if router_entry.config_entry.connections:       
            connection_records = IPConnectionDatasource.metric_records(router_entry)
            if connection_records:
                connection_metrics = BaseCollector.gauge_collector('ip_connections_total', 'Number of IP connections', connection_records, 'count',)
                yield connection_metrics

        if router_entry.config_entry.connection_stats:
            connection_stats_records = IPConnectionStatsDatasource.metric_records(router_entry)            

            for connection_stat_record in connection_stats_records:
                BaseOutputProcessor.augment_record(router_entry, connection_stat_record, id_key = 'src_address')

            connection_stats_labels = ['src_address', 'dst_addresses', 'dhcp_name']                
            connection_stats_metrics_gauge = BaseCollector.gauge_collector('connection_stats', 'Open connection stats', 
                                                                connection_stats_records, 'connection_count', connection_stats_labels)
            yield connection_stats_metrics_gauge