'''
# A basic APRS iGate and APRS weather station with additional (optional) PE1RXF telemetry support
#
# This program reads the registers of the PE1RXF weather station via ModBus RTU and sends it as
# an APRS WX report over APRS. Additionally, it sends beacons and forwards received APRS messages
# to the APRS-IS network. All configurable via a YAML file called pe1rxf_aprs.yml.
#
# This program also has a PE1RXF APRS telemetry to MQTT bridge, which is configurable via pe1rxf_telemetry.yml
#
# Copyright (C) 2023, 2024 M.T. Konstapel https://meezenest.nl/mees
#
# This file is part of weather_station
#
#    weather_station 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 3 of the License, or
#    (at your option) any later version.
#
#    weather_station 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.
#
#    You should have received a copy of the GNU General Public License
#    along with weather_station. If not, see <https://www.gnu.org/licenses/>.
'''

import yaml
from yaml.loader import SafeLoader

class config_reader:

    # initiate class: define name configuration files
    def __init__(self, config_file):
        self.config_file = config_file

    def read_settings(self):

        if self.read_config_file() == 0:
            return 0

        if self.test_global_settings() == 0:
            return 0

        if self.test_modbus_settings() == 0:
            return 0

        if self.test_modbus_servers_settings() == 0:
            return 0

        return 1

    def read_config_file (self):
        try:
            with open(self.config_file) as f:
                self.config_file_settings = yaml.load(f, Loader=SafeLoader)
        except:
            print ("Configuration file ./" + self.config_file + " not found or syntax error in file.")
            return 0
        else:
            return 1

    # Test if all settings are pressebt
    def test_global_settings(self):
        # Test is all expected settings are present
        try:
            tmp = self.config_file_settings['global']['log-rf']
        except:
            print ("Error in the global section of the configuration file.")
            return 0
        else:
            return 1

    # Test if all settings are pressebt
    def test_modbus_settings(self):
        # Test is all expected settings are present
        try:
            tmp = self.config_file_settings['modbus']['port']
        except:
            print ("Error in the modbus section of the configuration file.")
            return 0
        else:
            return 1

    def test_modbus_servers_settings(self):
        for entry in self.config_file_settings['modbus_servers']:
            try:
                tmp = entry['address']
                tmp = entry['description']
            except:
                print ("Error in the modbus_servers section of the configuration file.")
                return 0
        else:
            return 1