#!/usr/bin/env python3

# This file is part of OpenPlotter.
# Copyright (C) 2022 by Sailoog <https://github.com/openplotter/openplotter-maiana>
#                     
# Openplotter 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
# any later version.
# Openplotter 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 Openplotter. If not, see <http://www.gnu.org/licenses/>.

import time, os, subprocess, sys, ujson
from openplotterSettings import language
from openplotterSettings import platform
from openplotterSignalkInstaller import connections

class Start(): 
	def __init__(self, conf, currentLanguage):
		self.conf = conf
		currentdir = os.path.dirname(os.path.abspath(__file__))
		language.Language(currentdir,'openplotter-maiana',currentLanguage)
		
		self.initialMessage = _('Starting MAIANA transponder...')

	def start(self): 
		green = '' 
		black = '' 
		red = '' 

		subprocess.call(['pkill', '-f', 'openplotter-maiana-read'])
		subprocess.Popen('openplotter-maiana-read')
		time.sleep(1)

		return {'green': green,'black': black,'red': red}

class Check():
	def __init__(self, conf, currentLanguage):
		self.conf = conf
		self.platform = platform.Platform()
		currentdir = os.path.dirname(os.path.abspath(__file__))
		language.Language(currentdir,'openplotter-maiana',currentLanguage)
		
		self.initialMessage = _('Checking MAIANA transponder...')

	def check(self):
		green = '' 
		black = '' 
		red = '' 
		
		#device
		device = self.conf.get('MAIANA', 'device')
		if not device:
			msg = _('There is no MAIANA device defined')
			if not red: red = msg
			else: red+= '\n    '+msg
		else:
			msg = _('MAIANA device')+': '+device
			if not black: black = msg
			else: black+= ' | '+msg

		#check devie¡ce and server settings
		if device:
			settingsOK = False
			nmeaOK = True
			try:
				setting_file = self.platform.skDir+'/settings.json'
				with open(setting_file) as data_file:
					data = ujson.load(data_file)
			except: data = {}
			if 'pipedProviders' in data: data2 = data['pipedProviders']
			else: data2 = []
			for i in data2:
				enabled = ''
				dataType = ''
				baudrate = ''
				connectionType = ''
				suppress0183event = False
				try:
					dataSubOptions = i['pipeElements'][0]['options']['subOptions']
					if device in dataSubOptions['device']:
						enabled = i['enabled']
						dataType = i['pipeElements'][0]['options']['type']
						baudrate = dataSubOptions['baudrate']
						connectionType = dataSubOptions['type']
						if 'suppress0183event' in dataSubOptions: suppress0183event = dataSubOptions['suppress0183event']
						if enabled and connectionType == 'serial' and baudrate == 38400 and dataType == 'NMEA0183' and not suppress0183event: settingsOK = True
				except: pass			
				if settingsOK:
					msg = _('device settings OK')
					if not black: black = msg
					else: black+= ' | '+msg
				else:
					msg = _('check device settings')
					if not red: red = msg
					else: red+= '\n    '+msg

			if 'interfaces' in data: data2 = data['interfaces']
			else: data2 = []
			if 'nmea-tcp' in data2:
				if not data2['nmea-tcp']: nmeaOK = False
			if not nmeaOK:
				msg = _('NMEA 0183 over TCP (10110) interface is disabled. Check Signal K server settings')
				if not red: red = msg
				else: red+= '\n    '+msg

		#access
		skConnections = connections.Connections('MAIANA')
		result = skConnections.checkConnection()
		if result[0] == 'pending' or result[0] == 'error' or result[0] == 'repeat' or result[0] == 'permissions':
			if not red: red = result[1]
			else: red+= '\n    '+result[1]
		if result[0] == 'approved' or result[0] == 'validated':
			msg = _('Access to Signal K server validated')
			if not black: black = msg
			else: black+= ' | '+msg

		# check service
		test = subprocess.check_output(['ps','aux']).decode(sys.stdin.encoding)
		if device and (result[0] == 'approved' or result[0] == 'validated'):
			if 'openplotter-maiana-read' in test: 
				msg = _('running')
				if not green: green = msg
				else: green+= ' | '+msg
			else:
				msg = _('not running')
				if red: red += '\n   '+msg
				else: red = msg
		else:
			if 'openplotter-maiana-read' in test: 
				msg = _('running')
				if red: red += '\n   '+msg
				else: red = msg
			else:
				msg = _('not running')
				if not black: black = msg
				else: black+= ' | '+msg

		return {'green': green,'black': black,'red': red}