from django.shortcuts import render
from django.http import HttpResponse
from django.template import loader
from django.shortcuts import redirect

import pprint
import vyos

from .models import Instance


def index(request):
    #interfaces = vyos.get_interfaces()
    all_instances = vyos.instance_getall()
    hostname_default = vyos.get_hostname_prefered(request)


    template = loader.get_template('config/instance.html')
    context = { 
        #'interfaces': interfaces,
        'instances': all_instances,
        'hostname_default': hostname_default,
    }   
    return HttpResponse(template.render(context, request))



def instances(request):
    all_instances = vyos.instance_getall()
    hostname_default = vyos.get_hostname_prefered(request)

    print(all_instances)

    if hostname_default == None:
        if all_instances.count() > 0:
            for i in all_instances:
                pprint.pprint(i.hostname)
                instance_default(request, i.hostname)
            
        else:
            return redirect('config:instance-add')

    template = loader.get_template('config/instances.html')
    context = { 
        'instances': all_instances,
        'hostname_default': hostname_default,

    }   
    return HttpResponse(template.render(context, request))

def instance_add(request):
    #interfaces = vyos.get_interfaces()
    all_instances = vyos.instance_getall()
    hostname_default = vyos.get_hostname_prefered(request)

    if len(request.POST) > 0:
        instance = Instance()
        instance.alias = request.POST['alias']
        instance.hostname = request.POST['hostname']
        instance.port = request.POST['port']
        instance.key = request.POST['key']
        if 'https' in request.POST:
            instance.https = request.POST['https']
        else:
            instance.https = False
        instance_id = instance.save()
    else:
        instance_id = 0

    template = loader.get_template('config/instance_add.html')
    context = { 
        'hostname_default': hostname_default,
        'instance_id': instance_id,
        'instances': all_instances,
    }   
    return HttpResponse(template.render(context, request))

def instance_conntry(request, hostname):
    all_instances = vyos.instance_getall()
    hostname_default = vyos.get_hostname_prefered(request)

    # permcheck
    instance = Instance.objects.get(hostname=hostname)
    connected = vyos.conntry(hostname)
    if connected == True:
        request.session['hostname'] = hostname


    template = loader.get_template('config/instance_conntry.html')
    context = { 
        'instance': instance,
        "connected": connected,
        'instances': all_instances,
        'hostname_default': hostname_default,
    }   
    return HttpResponse(template.render(context, request))


def instance_default(request, hostname):
    all_instances = vyos.instance_getall()

    # permcheck
    instance = Instance.objects.get(hostname=hostname)
    
    connected = vyos.conntry(hostname)
    # show some error when not connected
    if connected == True:
        request.session['hostname'] = hostname
        instance.main = True
        instance.save()

    return redirect('config:instances')



def instance_remove(request, hostname):
    all_instances = vyos.instance_getall()

    # permcheck
    instance = Instance.objects.get(hostname=hostname)
    
    hostname_default = vyos.get_hostname_prefered(request)

    if hostname_default != hostname:
        instance.delete()

    return redirect('config:instances')