# General imports
from ast import arguments
import re
import sys
import datetime
from datetime import timezone
import utils.Logger as l
import json
from random import randint
import time,os
from collections import OrderedDict

# Django imports
from django.http import HttpResponse
from django.shortcuts import render, redirect
from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.core import serializers
from django.forms import modelformset_factory
from django.http import HttpResponseRedirect
from django.views.generic.edit import UpdateView
from django.shortcuts import get_object_or_404
from django.utils.decorators import method_decorator
from django.urls import reverse_lazy, reverse
from django.http import Http404
from django.db.models.query import QuerySet
from django.conf import settings as pyros_settings
from django.contrib import messages
from django.http import JsonResponse
from django.utils.http import urlencode

# Project imports
from common.models import Log, WeatherWatch, SiteWatch, Config, WeatherWatchHistory, Majordome, AgentSurvey, AgentCmd, Env_data, Env_data_hist
#from user_manager.models import PyrosUser, UserLevel
from user_manager.models import ScientificProgram, SP_Period_Guest
#from scientific_program.models import ScientificProgram, SP_Period_Guest
from devices.models import PlcDeviceStatus, TelescopeCommand #, Telescope

from dashboard.forms import ConfigForm, MajordomeForm #, UserForm
from dashboard.decorator import level_required
from devices.Telescope import TelescopeController
from devices.TelescopeRemoteControlDefault import TelescopeRemoteControlDefault
from devices.CameraVISRemoteControlDefault import CameraVISRemoteControlDefault
from devices.CameraNIRRemoteControlDefault import CameraNIRRemoteControlDefault
from devices import PLC
from src.core.pyros_django.obsconfig.obsconfig_class import OBSConfig

sys.path.append("../../..")
from config.pyros.config_pyros import ConfigPyros
#import utils.celme as celme
import vendor.guitastro.src.guitastro as guitastro


SUN_ELEV_DAY_THRESHOLD = -10
MAX_LOGS_LINES = 100

log = l.setupLogger("dashboard", "dashboard")

def index(request):
    config = OBSConfig(os.environ["PATH_TO_OBSCONF_FILE"],os.environ["unit_name"])
    observatory_name = config.get_obs_name()
    unit_name = config.unit_name
    request.session["obsname"] = observatory_name+" "+unit_name
    request.session["pyros_config"] = pyros_settings.CONFIG_PYROS
    logo = pyros_settings.CONFIG_PYROS.get("general").get("logo")
    request.session["logo"] = "media/"+logo
    message = ""
    if request.user.is_authenticated:
        if SP_Period_Guest.objects.filter(email=request.user.email):
            message = "You are requested to join the following proposals, click on the following link(s) to accept those invitations :<br><ul>"
            domain = pyros_settings.DEFAULT_DOMAIN
            for sp_period_guest in SP_Period_Guest.objects.filter(email=request.user.email):
                url = f"http://{domain}{reverse('sp_register',args=(sp_period_guest.SP_Period.scientific_program.id,sp_period_guest.SP_Period.period.id))}"
                message+=f"<li><a href='{url}'>{url}</a></li>"
            message+="</ul>"
        # return the initial view (the dashboard's one)
        return render(request, 'dashboard/index.html', {'USER_LEVEL': request.user.get_priority(), 'base_template' : "base.html","message":message})                              
    return render(request, 'dashboard/index.html', {"USER_LEVEL" : "Visitor", 'base_template' : "base.html"})                              

def observation_index(request):
    if request.user.is_authenticated:
        CAN_VIEW_SCIENCE_THEMES = request.session.get("role") in ("Admin","Unit-PI","Unit-board")
        # return the initial view (the dashboard's one)
        return render(request, 'dashboard/observation_index.html',{
            "base_template":"base.html",
            "CAN_VIEW_SCIENCE_THEMES": CAN_VIEW_SCIENCE_THEMES
        })                              
    return render(request, 'dashboard/observation_index.html', {'USER_LEVEL': "Visitor", 'base_template' : "base.html"})        
    
def retrieve_env(request):
    try:
        #weather_status = WeatherWatch.objects.latest('updated')
        weather_status = get_latest_from_db_or_empty(WeatherWatch)
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty()
        plc_timeout = Config.objects.get(pk=1).plc_timeout_seconds
        timeout = (datetime.datetime.now() - plc_device_status.created).total_seconds()
        timeout_affichage = datetime.datetime.now() - datetime.timedelta(seconds=timeout)
        sunelev = get_sunelev()
        t = datetime.datetime.now() + datetime.timedelta(hours=-7)
        isDay = False
        if sunelev >= SUN_ELEV_DAY_THRESHOLD:
            isDay = True
        return render(request, 'dashboard/observation_status_env.html', locals())
    except WeatherWatch.DoesNotExist:
            raise Http404("No WeatherWatch matches the given query.")


'''
        Function that call guitastro code to determine sun elevation, maybe it should be moved somewhere else ?
'''

def get_sunelev():
    date = guitastro.dates.Date("now")
    site = guitastro.siteobs.Siteobs("MPC 244.5367  0.85792  +0.51292") # coords of san pedro martir site
    skyobj= {'planet':'Sun'}
    outputs = ['name','ra','dec','elev']

    target = guitastro.Target()
    target.define(skyobj)
    output0s = ['ra','dec']
    results = target.ephem(date,site,output0s)
    ra = results['RA']
    dec = results['DEC']
    skyobj= {'RA':ra , 'DEC':dec }
    target.define(skyobj)
    results = target.ephem(date,site,outputs)
    elev = round(results['ELEV'],2)
    return elev

def retrieve_env_navbar(request):

    '''
            Function which get the last status of the plc in th db, the config info, the sunelev, put it in a json
            and send it to the client.
            This function is called every REFRESH_ICONS_FREQUENCE_MILLISECONDS in base.html

    '''
    try:
        weather = get_weather_data()
        return HttpResponse(json.dumps(weather), content_type="application/json")
    except WeatherWatch.DoesNotExist:
        raise Http404("No WeatherWatch matches the given query.")

    '''
    ##if request.is_ajax():
    try:
        #weather_status = WeatherWatch.objects.latest('updated')
        weather_status = WeatherWatch.objects.latest('updated') if WeatherWatch.objects.all().exists() else WeatherWatch()
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created') if PlcDeviceStatus.objects.all().exists() else PlcDeviceStatus()
        if PlcDeviceStatus.objects.all().exists():
            plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        else:
            plc_device_status = PlcDeviceStatus()
            #plc_device_status.created='2018-07-26 12:48:49.949228'
            plc_device_status.created=datetime.datetime(2018, 6, 21, 9, 53, 30, 599462)
        plc_mode = plc_device_status.plc_mode
        is_safe = plc_device_status.is_safe
        weather = serializers.serialize('json', [weather_status])
        weather = json.loads(weather)
        ack = Config.objects.get(id=1).ack
        plc_timeout = Config.objects.get(pk=1).plc_timeout_seconds
        #if not PlcDeviceStatus.objects.all().exists() plc_device_status.created='2018-07-26 12:48:49.949228'
        #timeout = (datetime.datetime.now() - LAST_PLC_ITEM_TIME).total_seconds()
        timeout = (datetime.datetime.now() - plc_device_status.created).total_seconds()
        weather[0]['max_sunelev'] = SUN_ELEV_DAY_THRESHOLD
        #weather[0]['sunelev'] = 10
        weather[0]['sunelev'] = get_sunelev()
        weather[0]["plc_mode"] = plc_mode
        weather[0]["is_safe"] = is_safe
        weather[0]["ACK"] = ack
        weather[0]["plc_timeout"] = timeout
        weather[0]["max_plc_timeout"] = plc_timeout
        weather[0]["pyros_mode"] = Config.objects.get(id=1).pyros_state
        if SiteWatch.objects.all().exists():
            sitewatch = SiteWatch.objects.latest('updated')
        else:
            sitewatch = SiteWatch()
            #sitewatch.global_status='KO'
        weather[0]["sitewatch_global_status"] = sitewatch.global_status
        #weather[0]["sitewatch_global_status"] = SiteWatch.objects.latest('updated').global_status
        #weather[0]["sitewatch_global_status"] = SiteWatch.objects.latest('updated').global_status if SiteWatch.objects.all().exists() else SiteWatch()
        return HttpResponse(json.dumps(weather), content_type="application/json")
    except WeatherWatch.DoesNotExist:
        raise Http404("No WeatherWatch matches the given query.")
    '''

@login_required
def settings(request):
    '''
        View called to see the settings (for the software, observatory, users...) page
    '''
    CAN_VIEW_PERIOD = request.session.get("role") in ("Admin", "Unit-PI", "Observer", "Unit-board")
    CAN_CHANGE_SOFT_MODE = request.session.get("role") in ("Admin", "Unit-PI", "Operator")
    CAN_VIEW_AGENTS_STATE = request.session.get("role") in ("Admin", "Unit-PI", "Operator")
    return(render(request, "dashboard/settings.html", locals()))

def get_last_all_cmds(agent_name):
    last_agent_all_cmds = None
    last_do_stop_cmd = None
    if "AgentSST" not in agent_name:
        try:
            last_agent_all_cmds = AgentCmd.objects.filter(full_name="get_all_cmds",recipient=agent_name,state__contains="CMD_EXECUTED").latest("s_deposit_time")
            last_do_stop_cmd =  AgentCmd.objects.filter(full_name__contains="do_stop",recipient=agent_name).latest("s_deposit_time")
            if last_agent_all_cmds.s_deposit_time <= last_do_stop_cmd.s_deposit_time:
                last_agent_all_cmds = AgentCmd.send_cmd_from_to("System",agent_name,"get_all_cmds")
                while not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_executed() and not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_exec_error():
                    time.sleep(0.5)
            return AgentCmd.objects.get(id=last_agent_all_cmds.id) 
        except AgentCmd.DoesNotExist:
            if last_do_stop_cmd == None and last_agent_all_cmds != None:
                return last_agent_all_cmds
            last_agent_all_cmds = AgentCmd.send_cmd_from_to("System",agent_name,"get_all_cmds")
            while not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_executed() and not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_exec_error():
                time.sleep(0.5)
            return AgentCmd.objects.get(id=last_agent_all_cmds.id)
    else:
        # AgentSST doesn't have do_stop cmd... (for the moment)
        datetime_now = datetime.datetime.now(tz=timezone.utc)
        time_delta = datetime_now - datetime.timedelta(minutes=30)
        last_agent_all_cmds = AgentCmd.objects.filter(full_name="get_all_cmds",recipient=agent_name,state__contains="CMD_EXECUTED")
        if last_agent_all_cmds.exists() :
            last_agent_all_cmds = last_agent_all_cmds.latest("s_deposit_time")
            if time_delta <= last_agent_all_cmds.s_deposit_time:

                last_agent_all_cmds = AgentCmd.send_cmd_from_to("System",agent_name,"get_all_cmds")
                max_wait_time = 3
                current_wait_time = 0
                while not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_executed() and not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_exec_error():
                    time.sleep(0.5)
                    current_wait_time+=0.5
                    if max_wait_time <= current_wait_time:
                        break 
                return AgentCmd.objects.get(id=last_agent_all_cmds.id)
            else:
                return AgentCmd.objects.get(id=last_agent_all_cmds.id) 
        else:
            # There is no get_all_cmds for this agent in database, it's the first time we send this command, we have to wait until the command is executed.
            last_agent_all_cmds = AgentCmd.send_cmd_from_to("System",agent_name,"get_all_cmds")
            while not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_executed() and not AgentCmd.objects.get(id=last_agent_all_cmds.id).is_exec_error():
                time.sleep(0.5)
@login_required
def agent_detail(request, agent_name):
    agent_log_path = os.path.join(os.environ.get("PROJECT_ROOT_PATH"),f"logs/{agent_name}/",f"{agent_name}.log")
    try:
        log = open(agent_log_path,"r")
        log_content = log.readlines()
        
        if len(log_content) > 30:
            log_last_30_lines = log_content[-30:]
            
        else:
            log_last_30_lines = log_content
        log.close()
    except FileNotFoundError:
        error_message = f"Cannot find agent logs. (Agent log path tried : {agent_log_path})"
    specific_cmd_with_args = None
    cmd_with_choices = []
    cmds_description = {}
    agent_general_commands = AgentCmd._AGENT_GENERAL_COMMANDS.copy()
    if not AgentSurvey.objects.get(name=agent_name).is_stopping():
        agent_specific_cmds = get_last_all_cmds(agent_name)
        wait_time = 0
        max_wait_time = 20
        unimplemented_command = None
        #while not AgentCmd.objects.get(id=agent_specific_cmds.id).is_executed() and wait_time <= max_wait_time:
        # while not AgentCmd.objects.get(id=agent_specific_cmds.id).is_executed() and not AgentCmd.objects.get(id=agent_specific_cmds.id).is_exec_error():
        #     time.sleep(0.5)
        #     wait_time += 0.5
        #cmd = AgentCmd.objects.get(id=agent_specific_cmds.id)
        cmd = agent_specific_cmds
        
        if cmd.is_exec_error():
            unimplemented_command = cmd.result
        else:
            agent_specific_cmd_to_list = cmd.result.split(";")
            specific_cmd_with_args = {}
            for specific_cmd in agent_specific_cmd_to_list:
                # if "get_all_cmds" in specific_cmd or "get_specific_cmds" in specific_cmd:
                #     continue
                if "(" in specific_cmd:
                    splitted_cmd = specific_cmd.split("/")
                    specific_cmd = splitted_cmd.pop(0)
                    if len(splitted_cmd) > 0:
                        description = splitted_cmd.pop(0)
                    else:
                        description = ""
                    cmd = specific_cmd.split("(")[0]
                    specific_cmd_with_args[cmd] = []
                    cmds_description[cmd] = description
                    # get text between paretheses
                    args = re.findall(pattern="\(([^)]+)\)",string=specific_cmd)
                    for arg in args:
                        if "typing.Literal" in arg:
                            arg_name = arg.split(":")[0]
                            values = re.findall(pattern="\[(.*?)\]",string=arg) 
                            trim_values = []
                            for value in values:
                                if "'" in value:
                                    value = value.replace("'","")
                                    trim_values.append(value)
                                specific_cmd_with_args[cmd].append([arg_name,trim_values])
                            cmd_with_choices.append(cmd)
                        else:
                            arguments = arg.split("|")
                            for index ,arg in enumerate(arguments):
                                if ("typing.Tuple" in arg or "typing.List" in arg):
                                    arg_name = arg.split(":")[0]
                                    arg_type = arg.split(":")[1]
                                    trim_values = []
                                    values_type = re.findall(pattern="\[(.*?)\]",string=arg_type)
                                    if values_type:
                                        # best way to tell user the type allowed in list or tuple is to put the raw content in one field
                                            specific_cmd_with_args[cmd].append([arg_name+" "+str(values_type),"str"])
                                        #for arg in values_type:
                                        #    specific_cmd_with_args[cmd].append([arg_name+" "+arg_type,arg])
                                else:
                                    specific_cmd_with_args[cmd].append(arg.split(":"))
            if request.GET.get("cmd"):
                if request.GET.get("cmd") != "all":
                    if request.GET.get("cmd") in list(specific_cmd_with_args.keys()):
                        return JsonResponse({"specific_cmd_with_args":specific_cmd_with_args.get(request.GET.get("cmd")),"cmd_with_choices":cmd_with_choices,"cmds_description":cmds_description},safe=False)
                    else:
                        return JsonResponse(None,safe=False)
                else:
                    return JsonResponse({"agent_general_commands":agent_general_commands,"specific_cmd_with_args":specific_cmd_with_args,"unimplemented_command":unimplemented_command,"cmd_with_choices":cmd_with_choices,"cmds_description":cmds_description},safe=False)
        if request.GET.get("cmd"):
            return JsonResponse(None,safe=False)
    # commands_sent_by_agent = AgentCmd.get_commands_sent_by_agent(agent_name)
    # commands_recivied_by_agent = AgentCmd.get_commands_sent_to_agent(agent_name)
    # agent_cmds = commands_sent_by_agent | commands_recivied_by_agent
    # agent_cmds = agent_cmds.exclude(full_name="get_specific_cmds")
    # agent_cmds = agent_cmds.exclude(full_name="get_all_cmds")
    # agent_cmds = agent_cmds.order_by("-s_deposit_time")
    # paginator = Paginator(agent_cmds, pyros_settings.NB_ELEMENT_PER_PAGE)
    # page_number = request.GET.get("page",1)
    config = OBSConfig(os.environ["PATH_TO_OBSCONF_FILE"],os.environ["unit_name"])
    managed_agents = None
    agents_status = None
    managed_by = None
    if "AgentSST" in agent_name:
        # get computer of agentSST
        # get agents of this computer
        # mettre des boutons d'actions pour arrêter ou démarrer ou redémarrer l'agent 
        agent_computer = config.get_agent_information(config.unit_name,agent_name).get("computer")
        computer_hostname = config.get_computers().get(agent_computer).get("computer_config").get("hostname")
        agents = config.get_agents_per_computer(config.unit_name).get(computer_hostname)
        managed_agents = agents
        agents_status = {}
        for agent in managed_agents:
            if "AgentSST" in agent:
                managed_agents.remove(agent)
                continue
            try:
                agents_status[agent] = AgentSurvey.objects.get(name=agent).status
            except AgentSurvey.DoesNotExist:
                agents_status[agent] = "None"
    else:
        managed_by = None
        agent_computer = config.get_agent_information(config.unit_name,agent_name).get("computer")
        computer_hostname = config.get_computers().get(agent_computer).get("computer_config").get("hostname")
        agents = config.get_agents_per_computer(config.unit_name).get(computer_hostname)
        for agent in agents:
            if "AgentSST" in agent:
                managed_by = agent
                break
    obj, created = Majordome.objects.get_or_create(id=1)
    CAN_SEND_COMMAND = obj.soft_mode == Majordome.MANUAL_MODE
    # try:
    #     commands = paginator.page(page_number)
    # except PageNotAnInteger:
    #     commands = paginator.page(1)
    # except EmptyPage:
    #     commands = paginator.page(paginator.num_pages)
    return render(request, "dashboard/agent_detail.html", locals())

@login_required
def agent_action(request):
    if request.POST:
        action = request.POST.get("action")
        agentsst = request.POST.get("agentsst")
        recipient = request.POST.get("recipient")
        args = request.POST.get("args")
        if action == "start":
            new_cmd = AgentCmd.send_cmd_from_to(request.user,agentsst,"do_start_agent",recipient)
        elif action == "restart":
            if args:
                if args == "soft":
                    new_cmd = AgentCmd.send_cmd_from_to(request.user,agentsst,"do_restart_agent",recipient+ " soft")
                else:
                    new_cmd = AgentCmd.send_cmd_from_to(request.user,agentsst,"do_restart_agent",recipient+ " hard")
        elif action == "stop":
            new_cmd = AgentCmd.send_cmd_from_to(request.user,agentsst,"do_stop_agent",recipient)
        if new_cmd != None:
            messages.add_message(request, messages.INFO, f"Command sent !")
        else:
            messages.add_message(request, messages.INFO, f"Error while creating command, please try again.")
        return redirect(agent_detail,agent_name=agentsst)    

@login_required
def agents_commands(request):
    agents_cmds = AgentCmd.objects.all()
    cmd_status = AgentCmd.CMD_STATUS_CODES
    url_filters = ""
    start_datetime = ""
    end_datetime = ""
    selected_cmd_status = ""
    if request.GET.get("start_datetime"):
        start_datetime = request.GET.get("start_datetime")
        end_datetime = request.GET.get("end_datetime")
    if request.GET.get("selected_cmd_status"):
        selected_cmd_status = request.GET.get("selected_cmd_status")
        # if len(start_datetime)>0 or len(end_datetime) > 0:
        #     start_datetime_tz = datetime.datetime.strptime(start_datetime,"%Y-%m-%d %H:%M:%S")
        #     start_datetime_tz = start_datetime_tz.replace(tzinfo=timezone.utc)
        #     end_datetime_tz = datetime.datetime.strptime(end_datetime,"%Y-%m-%d %H:%M:%S")
        #     end_datetime_tz = end_datetime_tz.replace(tzinfo=timezone.utc)
        #     agents_cmds = agents_cmds.filter(s_deposit_time__range=(start_datetime_tz,end_datetime_tz))
        #     url_filters = urlencode({"start_datetime":start_datetime,"end_datetime":end_datetime})
    if request.POST:
        start_datetime = request.POST.get("start_datetime")
        end_datetime = request.POST.get("end_datetime")
        filtered_cmd_status = request.POST.get("cmd_status")
        selected_cmd_status = filtered_cmd_status
    if len(start_datetime)>0:
        #start_datetime_tz = datetime.datetime.strptime(start_datetime,"%Y-%m-%d %H:%M:%S")
        start_datetime_tz = datetime.datetime.strptime(start_datetime,"%Y/%m/%d %H:%M")
        start_datetime_tz = start_datetime_tz.replace(tzinfo=timezone.utc)
    else:
        start_datetime_tz = agents_cmds.first().s_deposit_time
    if len(end_datetime) > 0:
        #end_datetime_tz = datetime.datetime.strptime(end_datetime,"%Y-%m-%d %H:%M:%S")
        end_datetime_tz = datetime.datetime.strptime(end_datetime,"%Y/%m/%d %H:%M")
        end_datetime_tz = end_datetime_tz.replace(tzinfo=timezone.utc)
        agents_cmds = agents_cmds.filter(s_deposit_time__range=(start_datetime_tz,end_datetime_tz))
        url_filters = urlencode({"start_datetime":start_datetime,"end_datetime":end_datetime})
    else:
        end_datetime_tz = datetime.datetime.now(tz=timezone.utc)
    if selected_cmd_status and selected_cmd_status != "all":
        agents_cmds = agents_cmds.filter(state=selected_cmd_status)
        url_filters = urlencode({"start_datetime":start_datetime,"end_datetime":end_datetime,"selected_cmd_status":selected_cmd_status})
    agents_cmds = agents_cmds.exclude(full_name="get_specific_cmds")
    agents_cmds = agents_cmds.exclude(full_name="get_all_cmds")
    agents_cmds = agents_cmds.order_by("-s_deposit_time","-id")
    paginator = Paginator(agents_cmds, pyros_settings.NB_ELEMENT_PER_PAGE)
    page_number = request.GET.get("page",1)
    try:
        commands = paginator.page(page_number)
    except PageNotAnInteger:
        commands = paginator.page(1)
    except EmptyPage:
        commands = paginator.page(paginator.num_pages)
    # if request.POST:
    #     return redirect(request.META['HTTP_REFERER'])
    return render(request, "dashboard/agents_commands.html", locals())
def send_agent_cmd(request):
    if request.POST:
        # make a copy because request.POST is immutable
        post_data = request.POST.copy()
        reciever = post_data.get("agent_name")
        cmd_name = post_data.get("cmd_name")
        post_data.pop("agent_name")
        post_data.pop("cmd_name")
        post_data.pop("csrfmiddlewaretoken")
        cmd_args = ""
        for arg_name in post_data: 
            cmd_args += post_data.get(arg_name)+ " "
        if len(cmd_args)>0:
            cmd_args = cmd_args[:-1]
        new_cmd = AgentCmd.send_cmd_from_to(request.user,reciever,cmd_name,cmd_args)
        if new_cmd != None:
            # messages.add_message(request, messages.INFO, f"Command sent !")
            return HttpResponse("OK")
        else:
            # messages.add_message(request, messages.INFO, f"Error while creating command, please try again.")
            return HttpResponse("Error")
    return redirect(agent_detail,agent_name=reciever)

def retrieve_log_content(request):
    if request.POST:
        agent_name = request.POST.get("agent_name")
        agent_log_path = os.path.join(os.environ.get("PROJECT_ROOT_PATH"),f"logs/{agent_name}/",f"{agent_name}.log")
        try:
            log = open(agent_log_path,"r")
            log_content = log.readlines()
            
            if len(log_content) > 30:
                log_last_30_lines = log_content[-30:]
                
            else:
                log_last_30_lines = log_content
            log.close()
            return HttpResponse(log_last_30_lines)
        except FileNotFoundError:
            error_message = f"Cannot find agent logs. (Agent log path tried : {agent_log_path})"
            return HttpResponse(error_message)


@login_required
@level_required("Admin", "Unit-PI", "Operator")
def soft_mode(request):
    if request.POST:
        form = MajordomeForm(request.POST)
        if form.is_valid():
            obj, created = Majordome.objects.get_or_create(id=1)
            obj.soft_mode = form.cleaned_data["soft_mode"]
            obj.save()
            new_soft_mode = form.instance.soft_mode
            messages.add_message(request, messages.INFO, f"Changed observatory mode to {new_soft_mode}")
    obj, created = Majordome.objects.get_or_create(id=1)
    form = MajordomeForm(instance=obj)
    soft_mode = obj.soft_mode
    is_auto = soft_mode == Majordome.AUTO_MODE
    return render(request, "dashboard/soft_mode.html", locals())

@login_required
def agents_state(request):
    agents = AgentSurvey.objects.all()
    datetime_now = datetime.datetime.now(tz=timezone.utc)
    if request.GET:
        agent_name = request.GET["agent_name"]
        try:
            running_commands = AgentCmd.objects.get(state="CMD_RUNNING",sender=agent_name)
            return HttpResponse(running_commands.full_name)
        except AgentCmd.DoesNotExist:
            return HttpResponse("None")
        # running_command_per_agent = {}
        # for cmd in running_commands:
        #     running_command_per_agent = running_commands[cmd.get("sender")] = cmd.get("full_name")
        # return HttpResponse(running_command_per_agent)
    soon_out_of_date_agents = []
    for agent in agents:
        datetime_now_minus_thirty_sec = datetime_now - datetime.timedelta(seconds=30)
        datetime_now_minus_thirty_sec =  datetime_now_minus_thirty_sec.replace(tzinfo=timezone.utc)
        
        if datetime_now_minus_thirty_sec >= agent.updated:
            soon_out_of_date_agents.append(agent.name)
    return render(request, "dashboard/agents_state.html", locals())


def retrieve_main_icon(request):
    if request.is_ajax():
        try:
            weather_status = WeatherWatch.objects.latest('updated')
            plc_mode = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created').plc_mode

            weather = serializers.serialize('json', [weather_status])
            weather = json.loads(weather)
            weather[0]["plc_mode"] = plc_mode
            weather[0]["sitewatch_global_status"] = SiteWatch.objects.latest('updated').global_status

            return HttpResponse(json.dumps(weather), content_type="application/json")
        except WeatherWatch.DoesNotExist:
            raise Http404("No WeatherWatch matches the given query.")



@login_required
#@level_required(2)
def routines(request):
    url_ = reverse('admin:common_request_changelist')
    return redirect(url_)


def get_lastest_and_last_x_minutes_before_latest_weather(x:float=0):
    if Env_data.objects.all().exists():
        latest_entry = Env_data.objects.latest('updated')
        # Get datetime of last weather datetime entry minus x
        time_start_range = latest_entry.updated - datetime.timedelta(minutes=x)
        # If we have entries in WeatherWatchHistory
        if Env_data_hist.objects.all().exists():
            # Get the first entry in history that is less or equal than time_start_range
            first_weather_of_time_start = Env_data.objects.filter(updated__lte=time_start_range).order_by("-updated").first()
            if first_weather_of_time_start != None:
                first_weather_of_time_start_id = first_weather_of_time_start.id
                # get all id in history that are after the first_weather_of_time_start
                list_id_weather_history = Env_data_hist.objects.filter(weather__id__gte=first_weather_of_time_start_id).values_list("weather__id",flat=True)
                list_id_weather_history = list(list_id_weather_history)
                # add the last entry of weatherwatch at the end of the list
                list_id_weather_history.append(latest_entry.id)
                # Get all WeatherWatch instance that match those ids
                weather_data = Env_data.objects.filter(id__in=list_id_weather_history).order_by("updated")
                if weather_data.count() > 0:
                    return weather_data 
            else:
                # We don't have a matching history entry yet, return the last entry of WeatherWatch (plot with one dot)
                return latest_entry
            # We don't have an WeatherWatchHistory entry yet, return the last entry of WeatherWatch (plot with one dot)
        return Env_data.objects.all()
    else:
        # We don't have WeatherWatch data, return empty WeatherWatch (empty plot)
        return Env_data()

def get_latest_from_db_or_empty(db_model):
    return db_model.objects.latest('updated') if db_model.objects.all().exists() else db_model()

def get_latest_plc_device_status_or_empty():
    if PlcDeviceStatus.objects.all().exists() and PlcDeviceStatus.objects.exclude(plc_mode=None).exists():
            plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
    else:
        # Create an empty object 
        plc_device_status = PlcDeviceStatus()
        # Set a dummy date
        #plc_device_status.created='2018-07-26 12:48:49.949228'
        plc_device_status.created=datetime.datetime(2018, 6, 21, 9, 53, 30, 599462)
        plc_device_status.is_safe = False
    return plc_device_status

def get_weather_data():
    #weather_status = WeatherWatch.objects.latest('updated') if WeatherWatch.objects.all().exists() else WeatherWatch()
    #weather_status = get_latest_from_db_or_empty(WeatherWatch)
    pyros_config_file = os.environ.get("pyros_config_file")
    config_pyros = ConfigPyros(pyros_config_file).pyros_config
    env_config = config_pyros.get("ENV")
    last_x_minutes = 15
    if env_config:
        last_x_minutes = env_config.get("time_before_plot")

    weather_history = get_lastest_and_last_x_minutes_before_latest_weather(last_x_minutes)
    plc_device_status = get_latest_plc_device_status_or_empty()
    plc_mode = plc_device_status.plc_mode
    is_safe = plc_device_status.is_safe
    if isinstance(weather_history,QuerySet):
        # If we have weather history  + last entry of weather
        weather = serializers.serialize('json', weather_history)
    else:
        # We have only the last entry of weather
        weather = serializers.serialize('json', [weather_history])
    weather = json.loads(weather)
    ack = Config.objects.get(id=1).ack
    plc_timeout = Config.objects.get(pk=1).plc_timeout_seconds
    #if not PlcDeviceStatus.objects.all().exists() plc_device_status.created='2018-07-26 12:48:49.949228'
    #timeout = (datetime.datetime.now() - LAST_PLC_ITEM_TIME).total_seconds()
    # PM 20190416 TODO: Check error
    #timeout = (datetime.datetime.now() - plc_device_status.created).total_seconds()
    timeout = 0
    weather[0]['max_sunelev'] = SUN_ELEV_DAY_THRESHOLD
    #weather[0]['sunelev'] = 10
    weather[0]['sunelev'] = get_sunelev()
    weather[0]["plc_mode"] = plc_mode
    weather[0]["is_safe"] = is_safe
    weather[0]["ACK"] = ack
    weather[0]["plc_timeout"] = timeout
    weather[0]["max_plc_timeout"] = plc_timeout
    weather[0]["pyros_mode"] = Config.objects.get(id=1).pyros_state
    # only for retrieve_env_navbar:
    sitewatch = get_latest_from_db_or_empty(SiteWatch)
    '''
    if SiteWatch.objects.all().exists():
        sitewatch = SiteWatch.objects.latest('updated')
    else:
        sitewatch = SiteWatch()
        #sitewatch.global_status='KO'
    '''
    weather[0]["sitewatch_global_status"] = sitewatch.global_status
    #weather[0]["sitewatch_global_status"] = SiteWatch.objects.latest('updated').global_status
    #weather[0]["sitewatch_global_status"] = SiteWatch.objects.latest('updated').global_status if SiteWatch.objects.all().exists() else SiteWatch()
    return weather



def weather(request):
    pyros_config_file = os.environ.get("pyros_config_file")
    config_pyros = ConfigPyros(pyros_config_file).pyros_config
    monitoring_names_to_plot = config_pyros.get("ENV").get("monitoring_names_to_be_plotted")
    return render(request, 'dashboard/reload_weather.html', {'base_template' : "base.html","monitoring_names_to_plot":monitoring_names_to_plot})

def weather_current(request):
    # PM 20180718
    #if request.is_ajax():
    try:
        weather = get_weather_data()
        return HttpResponse(json.dumps(weather), content_type="application/json")
    except WeatherWatch.DoesNotExist:
        raise Http404("No WeatherWatch matches the given query.")
    '''
    try:
        #weather_status = WeatherWatch.objects.latest('updated')
        #weather_status = WeatherWatch.objects.latest('updated') if WeatherWatch.objects.all().exists() else WeatherWatch()
        EMPTY_TABLE = WeatherWatch.objects.all().exists()
        weather_status = WeatherWatch.objects.latest('updated') if not EMPTY_TABLE else WeatherWatch()
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created') if PlcDeviceStatus.objects.all().exists() else PlcDeviceStatus()
        plc_mode = plc_device_status.plc_mode
        is_safe = plc_device_status.is_safe
        weather = serializers.serialize('json', [weather_status])
        weather = json.loads(weather)
        ack = Config.objects.get(id=1).ack
        plc_timeout = Config.objects.get(pk=1).plc_timeout_seconds
        #timeout = (datetime.datetime.now() - plc_device_status.created).total_seconds()
        LAST_PLC_ITEM_TIME = plc_device_status.created if not EMPTY_TABLE else '2018-07-26 12:48:49.949228'
        timeout = (datetime.datetime.now() - LAST_PLC_ITEM_TIME).total_seconds()
        weather[0]['max_sunelev'] = SUN_ELEV_DAY_THRESHOLD
        weather[0]['sunelev'] = get_sunelev()
        weather[0]["plc_mode"] = plc_mode
        weather[0]["is_safe"] = is_safe
        weather[0]["ACK"] = ack
        weather[0]["plc_timeout"] = timeout
        weather[0]["max_plc_timeout"] = plc_timeout
        weather[0]["pyros_mode"] = Config.objects.get(id=1).pyros_state
        return HttpResponse(json.dumps(weather), content_type="application/json")
    except WeatherWatch.DoesNotExist:
        raise Http404("No WeatherWatch matches the given query.")
    '''

def weather_config(request):
    """ PM 20180926 prototype without database
        http://127.0.0.1:8000/dashboard/weather/config
        Moved to monitoring
        http://127.0.0.1:8000/monitoring/weather/config
    """
    try:
        # Import PLC status sensor parser
        from monitoring.plc_checker import PlcChecker
        # Parse PLC status in colibri-new-fixed-2.json
        #colibri_json = open("../simulators/plc/colibri-new-fixed-2.json")
        #colibri_struct = json.load(colibri_json)
        #plc_status = colibri_struct["statuses"][1]["entities"][0]
        plc_checker = PlcChecker()
        _struct = {"origin":plc_checker.origin, "sensors_table":plc_checker.sensors_table}
        # Return template with sensors list
        return render(request, 'dashboard/config_weather.html', {'weather_config' : _struct, 'base_template' : "base.html"})
    except Config.DoesNotExist:
        return render(request, 'dashboard/config_weather.html', {'weather_info' : None})

def weather_current_old(request):
    try:
        if (len(Config.objects.all()) == 1):
            monitoring = int(int(Config.objects.get(id=1).row_data_save_frequency) / 5)
        else:
            monitoring = 60
        if (len(WeatherWatch.objects.all()) > 0):
            weather_info = WeatherWatch.objects.order_by("-id")[:monitoring]                                                            # Use 300 seconds by default with an iteration every 5 seconds                                                                                     # Get the number of data available
        else:                                                                                                                           
            weather_info = None
        return render(request, 'dashboard/_current_weather.html', {'weather_info' : site_current, 'iteration' : monitoring})
    except Config.DoesNotExist:
        return render(request, 'dashboard/_current_weather.html', {'weather_info' : None, 'iteration' : 60})

def site(request):
    if request.user.is_authenticated:
        return render(request, 'dashboard/reload_site.html', {'base_template' : "base.html"})                        # return the needed html file
    return render(request, 'dashboard/reload_site.html', {'base_template' : "base.html"})                        # return the needed html file

def site_current(request):
    try:
        if (len(Config.objects.all()) == 1):
            monitoring = int(int(Config.objects.get(id=1).row_data_save_frequency) / 5)
        else:
            monitoring = 60
        #if (len(SiteWatch.objects.all()) > 0):
        if SiteWatch.objects.all().exists():
            site_info = SiteWatch.objects.order_by("-id")[:monitoring]                                                               
        else:                                                                                                                           
            site_info = None
        return render(request, 'dashboard/current_site.html', {'site_info' : site_info, 'iteration' : monitoring, 'global_mode' : Config.objects.get(id=1).global_mode})
    except Config.DoesNotExist:
        return render(request, 'dashboard/current_site.html', {'site_info' : None, 'iteration' : 60})

@login_required
@level_required("Admin")
def proposal(request):
    if (len(ScientificProgram.objects.all()) > 0):                              # checking if the observatory table is empty
        proposal_info = ScientificProgram.objects.order_by("-id")[:100]         # Sorting Weather table
        nb_info_proposal = len(proposal_info)                                   # Get the number of data available

    else:                                                                       # if empty set everything to 0 / None (variables are checked in src/templates/scheduler/_current_weather.html)
        proposal_info = None
        nb_info_proposal = 0

    return render(request, 'dashboard/proposal.html', {'proposal_info' : proposal_info, 'nb_info_proposal' : nb_info_proposal})

@login_required
#@level_required(5)
def configUpdate(request):
    instance = get_object_or_404(Config, id=1)
    form = ConfigForm(request.POST or None, instance=instance)
    if form.is_valid():
        form.save()
        return reverse('settings')
    return render(request, 'dashboard/configuration.html', {'form': form}) 
    

@login_required
def devices(request):
    url_ = reverse('admin:common_device_changelist')
    return redirect(url_)

@login_required
def system(request):
    return render(request, 'dashboard/system.html')

@login_required
def system_retrieve_logs(request):
    '''
        Called by the dashboard system page with ajax request every seconds, to get the logs and print them
    '''
    if request.is_ajax():
        alert_logs = Log.objects.filter(agent='Alert manager').order_by("-created")[:MAX_LOGS_LINES]
        scheduler_logs = Log.objects.filter(agent='Scheduler').order_by("-created")[:MAX_LOGS_LINES]
        majordome_logs = Log.objects.filter(agent='Majordome').order_by("-created")[:MAX_LOGS_LINES]
        obs_logs = Log.objects.filter(agent='Observation manager').order_by("-created")[:MAX_LOGS_LINES]
        analyzer_logs = Log.objects.filter(agent='Analyzer').order_by("-created")[:MAX_LOGS_LINES]
        monitoring_logs = Log.objects.filter(agent='Monitoring').order_by("-created")[:MAX_LOGS_LINES]
        return render(request, 'dashboard/system_logs.html', locals())


def schedule(request):
    url_ = reverse('admin:common_schedule_changelist')
    return redirect(url_)


@login_required
#@level_required(6)
def quotas(request):
    url_ = reverse('admin:common_pyrosuser_changelist')
    return redirect(url_)

@login_required
#@level_required(3)
def change_globalMode(request):
    try :
        config = get_object_or_404(Config, id=1)
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        if config.global_mode == False and plc_device_status.is_safe == False:
            return redirect('states')
        config.global_mode = not config.global_mode
        config.save()
        return redirect('states')
    except Config.DoesNotExist:
        return redirect('states')

@login_required
#@level_required(4)
def change_bypass(request):
    try :
        config = get_object_or_404(Config, id=1)
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        if plc_device_status.is_safe == True:
            return redirect('states')
        config.bypass = not config.bypass
        config.save()
        return redirect('states')
    except Config.DoesNotExist:
        return redirect('states')

@login_required
#@level_required(3)
def change_lock(request):
    try :
        config = get_object_or_404(Config, id=1)
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        if config.lock == False and plc_device_status.is_safe == False:
            return redirect('states')
        config.lock = not config.lock
        if (config.lock == True):
            config.ntc = not config.ntc
        config.save()
        return redirect('states')
    except Config.DoesNotExist:
        return redirect('states')





@login_required
#@level_required(3)
def send_command_to_cameraVIS_1(request):

    data = ""
    with open('../simulators/config/grammar.json') as f:
        data = json.load(f, object_pairs_hook=OrderedDict)
        json_str = json.dumps(data)
    return render(request, "dashboard/send_command_cameraVIS_1.html", locals())

@login_required
#@level_required(3)
def submit_command_to_cameraVIS_1(request):
    '''
            function called when a command it submitted for the cameraVIS_1 in the remote control page
            (called in the corresponding control_command file)
    '''

    if request.method == 'POST':
        commands = [request.POST.get("first_command"), request.POST.get("first_param")]
        try: #TODO faire un truc plus joli pour gérer les params queqlue soit leur nombre
            input_0 = request.POST.get("input_number_0")
            input_1 = request.POST.get("input_number_1")
            input_2 = request.POST.get("input_number_2")
            input_3 = request.POST.get("input_number_3")

            if input_0:
                commands.append(input_0)
            if input_1:
                commands.append(input_1)
            if input_2:
                commands.append(input_2)
            if input_3:
                commands.append(input_3)
        except Exception:
            pass
        response = CameraVISRemoteControlDefault(commands, expert_mode=False, chosen_camera="ddrago_r").exec_command()
        #TODO passer en JS pour send les réponses en  AJAX
    return redirect('send_command_to_cameraVIS_1')

@login_required
#@level_required(3)
def submit_command_to_cameraVIS_1_expert(request):
    '''
            function called when a command it submitted in expert mode for the cameraVIS_1 in the remote control page
            (called in the corresponding control_command file)
    '''
    if request.method == 'POST':
        param = request.POST.get("commande_expert")
        if param:
            response = CameraVISRemoteControlDefault(param, expert_mode=True, chosen_camera="ddrago_r").exec_command()
            #os.system("echo \"status :" + response + "\" >> /home/portos/IRAP/pyros/src/status")
            return HttpResponse(json.dumps({'message': "Command send OK", 'response': response}))
        return HttpResponse(json.dumps({'message': "Missing command data"}))
    return redirect('submit_command_to_telescope')




@login_required
#@level_required(3)
def send_command_to_cameraNIR(request):
    data = ""
    with open('../simulators/config/grammar.json') as f:
        data = json.load(f, object_pairs_hook=OrderedDict)
        json_str = json.dumps(data)
    return render(request, "dashboard/send_command_cameraNIR.html", locals())


@login_required
#@level_required(3)
def submit_command_to_cameraNIR(request):
    '''
            function called when a command it submitted for the cameraNIR in the remote control page
            (called in the corresponding control_command file)
    '''
    if request.method == 'POST':
        commands = [request.POST.get("first_command"), request.POST.get("first_param")]
        try: #TODO faire un truc plus joli pour gérer les params queqlue soit leur nombre
            input_0 = request.POST.get("input_number_0")
            input_1 = request.POST.get("input_number_1")
            input_2 = request.POST.get("input_number_2")
            input_3 = request.POST.get("input_number_3")

            if input_0:
                commands.append(input_0)
            if input_1:
                commands.append(input_1)
            if input_2:
                commands.append(input_2)
            if input_3:
                commands.append(input_3)
        except Exception:
            pass
        response = CameraNIRRemoteControlDefault(commands, expert_mode=False).exec_command()
        #TODO passer en JS pour send les réponses en  AJAX
    return redirect('send_command_to_cameraNIR')

@login_required
#@level_required(3)
def submit_command_to_cameraNIR_expert(request):
    '''
            function called when a command it submitted in expert mode for the cameraNIR in the remote control page
            (called in the corresponding control_command file)
    '''
    if request.method == 'POST':
        param = request.POST.get("commande_expert")
        if param:
            response = CameraNIRRemoteControlDefault(param, expert_mode=True).exec_command()
            return HttpResponse(json.dumps({'message': "Command send OK", 'response': response}))
        return HttpResponse(json.dumps({'message': "Missing command data"}))
    return redirect('submit_command_to_cameraNIR')


@login_required
#@level_required(3)
def send_command_to_cameraVIS_2(request):
    data = ""
    with open('../simulators/config/grammar.json') as f:
        data = json.load(f, object_pairs_hook=OrderedDict)
        json_str = json.dumps(data)
    return render(request, "dashboard/send_command_cameraVIS_2.html", locals())

@login_required
#@level_required(3)
def submit_command_to_cameraVIS_2(request):
    '''
            function called when a command it submitted for the cameraVIS_2 in the remote control page
            (called in the corresponding control_command file)
    '''
    if request.method == 'POST':
        commands = [request.POST.get("first_command"), request.POST.get("first_param")]
        try: #TODO faire un truc plus joli pour gérer les params queqlue soit leur nombre
            input_0 = request.POST.get("input_number_0")
            input_1 = request.POST.get("input_number_1")
            input_2 = request.POST.get("input_number_2")
            input_3 = request.POST.get("input_number_3")

            if input_0:
                commands.append(input_0)
            if input_1:
                commands.append(input_1)
            if input_2:
                commands.append(input_2)
            if input_3:
                commands.append(input_3)
        except Exception:
            pass
        response = CameraVISRemoteControlDefault(commands, expert_mode=False, chosen_camera="ddrago_b").exec_command()
        #TODO passer en JS pour send les réponses en  AJAX
    return redirect('send_command_to_cameraVIS_2')

@login_required
#@level_required(3)
def submit_command_to_cameraVIS_2_expert(request):
    '''
            function called when a command it submitted in expert mode for the cameraVIS_2 in the remote control page
            (called in the corresponding control_command file)
    '''
    if request.method == 'POST':
        param = request.POST.get("commande_expert")
        if param:
            response = CameraVISRemoteControlDefault(param, expert_mode=True, chosen_camera="ddrago_b").exec_command()
            return HttpResponse(json.dumps({'message': "Command send OK", 'response': response}))
        return HttpResponse(json.dumps({'message': "Missing command data"}))
    return redirect('submit_command_to_cameraVIS_2')




@login_required
#@level_required(3)
def send_command_to_telescope(request):

    data = ""
    with open('../simulators/config/grammar.json') as f:
        data = json.load(f, object_pairs_hook=OrderedDict)
        json_str = json.dumps(data)
    return render(request, "dashboard/send_command_telescope.html", locals())

@login_required
#@level_required(3)
def submit_command_to_telescope(request):
    '''
            function called when a command it submitted for the Telescope in the remote control page
            (called in control_command.js)
    '''
    if request.method == 'POST':
        commands = [request.POST.get("first_command"), request.POST.get("first_param")]
        try: #TODO faire un truc plus joli pour gérer les params quelque soit leur nombre la c'est du rapide super moche et max 4 input
            input_0 = request.POST.get("input_number_0")
            input_1 = request.POST.get("input_number_1")
            input_2 = request.POST.get("input_number_2")
            input_3 = request.POST.get("input_number_3")

            if input_0:
                commands.append(input_0)
            if input_1:
                commands.append(input_1)
            if input_2:
                commands.append(input_2)
            if input_3:
                commands.append(input_3)
        except Exception:
            pass
        request = ' '.join(commands)
        NEW_MODE = True
        if NEW_MODE:
            TelescopeCommand.objects.create(request=request)
        else:
            response = TelescopeRemoteControlDefault(commands, False).exec_command()
        #TODO passer en JS pour send les réponses en  AJAX
    return redirect('send_command_to_telescope')

@login_required
#@level_required(3)
def submit_command_to_telescope_expert(request):
    '''
                function called when a command it submitted in expert mode for the Telescope in the remote control page
                (called in control_command.js)
    '''
    if request.method == 'POST':
        param = request.POST.get("commande_expert")
        if param:

            request = TelescopeCommand.objects.create(request=param)
            time.sleep(1)
            response = TelescopeCommand.objects.get(pk=request.id).answer
            return HttpResponse(json.dumps({'message': "Command send OK", 'response': response}))
        return HttpResponse(json.dumps({'message': "Missing command data"}))
    return redirect('submit_command_to_telescope')


@login_required
#@level_required(3)
def submit_command_to_plc(request):
    if request.method == 'POST':
        param = request.POST.get("commande_expert")
        if param:
            plc_controller = PLC.PLCController()
            response = "Unrecognized command"
            if param.startswith("GET STATUS ") or param =="GET STATUS": #pas beau a revoir (classe dédiée ?)
                response = plc_controller.getStatus(param)
            elif param.startswith("SWITCH LIGHTS"):
                response = plc_controller.switch_lights(param)
            elif param.endswith(" SHUTTERS"):
                response = plc_controller.manage_shutters(param)
            return HttpResponse(json.dumps({'message': "Command send OK", 'response': response}))
        return HttpResponse(json.dumps({'message': "Missing command data"}))
    return redirect('submit_command_to_plc')


@login_required
#@level_required(3)
def send_command_to_plc(request):
    return render(request, 'dashboard/send_command_to_plc.html')


@login_required
#@level_required(3)
def operator_state(request):
    instance = get_object_or_404(Config, id=1)
    #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
    plc_device_status = get_latest_plc_device_status_or_empty()
    return render(request, 'dashboard/operator_state.html', {'config' : instance, 'is_safe' : plc_device_status.is_safe})

@login_required
#@level_required(3)
def simulator(request):
    try :
        config = get_object_or_404(Config, id=1)
        #plc_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_status = get_latest_plc_device_status_or_empty()
        return(render(request, 'dashboard/simulator.html', locals()))
    except Config.DoesNotExist:
        return redirect('simulator')


@login_required
@level_required("Admin")
def simulator_switch_ack(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.ack = not config.ack
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

# if safe => switch to unsafe
# if unsafe => switch to safe
@login_required
@level_required("Admin")
def simulator_switch_safe(request):
    try :
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        plc_device_status.is_safe = not plc_device_status.is_safe
        plc_device_status.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_give_auto(request):
    try :
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        plc_device_status.plc_mode = "AUTO"
        plc_device_status.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_give_manu(request):
    try :
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        plc_device_status.plc_mode = "MANU"
        plc_device_status.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_give_ko(request):
    try :
        #plc_device_status = PlcDeviceStatus.objects.exclude(plc_mode=None).latest('created')
        plc_device_status = get_latest_plc_device_status_or_empty() 
        plc_device_status.plc_mode = "OFF"
        plc_device_status.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_switch_bypass(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.bypass = not config.bypass
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_switch_lock(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.lock = not config.lock
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_switch_globalMode(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.global_mode = not config.global_mode
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_majordome_restart(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.majordome_state = "OCS-RESTART"
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')

@login_required
@level_required("Admin")
def simulator_majordome_shutdown(request):
    try :
        config = get_object_or_404(Config, id=1)
        config.majordome_state = "OCS-SHUTDOWN"
        config.save()
        return redirect('simulator')
    except Config.DoesNotExist:
        return redirect('simulator')