from django.shortcuts import render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from computes.models import Compute
from secrets.forms import AddSecret
from vrtManager.secrets import wvmSecrets
from libvirt import libvirtError


def secrets(request, compute_id):
    """
    :param request:
    :return:
    """

    if not request.user.is_authenticated():
        return HttpResponseRedirect(reverse('index'))

    if not request.user.is_superuser:
        return HttpResponseRedirect(reverse('index'))

    secrets_all = []
    error_messages = []
    compute = Compute.objects.get(id=compute_id)

    try:
        conn = wvmSecrets(compute.hostname,
                          compute.login,
                          compute.password,
                          compute.type)
        secrets = conn.get_secrets()
        for uuid in secrets:
            secrt = conn.get_secret(uuid)
            try:
                secret_value = conn.get_secret_value(uuid)
            except libvirtError as lib_err:
                secret_value = None
            secrets_all.append({'usage': secrt.usageID(),
                                'uuid': secrt.UUIDString(),
                                'usageType': secrt.usageType(),
                                'value': secret_value
                                })
        if request.method == 'POST':
            if 'create' in request.POST:
                form = AddSecret(request.POST)
                if form.is_valid():
                    data = form.cleaned_data
                    conn.create_secret(data['ephemeral'], data['private'], data['usage_type'], data['data'])
                    return HttpResponseRedirect(request.get_full_path())
                else:
                    for msg_err in form.errors.values():
                        error_messages.append(msg_err.as_text())
            if 'delete' in request.POST:
                uuid = request.POST.get('uuid', '')
                conn.delete_secret(uuid)
                return HttpResponseRedirect(request.get_full_path())
            if 'set_value' in request.POST:
                uuid = request.POST.get('uuid', '')
                value = request.POST.get('value', '')
                conn.set_secret_value(uuid, value)
                return HttpResponseRedirect(request.get_full_path())
    except libvirtError as err:
        error_messages.append(err)

    return render(request, 'secrets.html', locals())