# coding:utf-8
from __future__ import absolute_import, unicode_literals

from django.utils.translation import ugettext as _
from django.conf import settings
from django.db.models import Q
from django.views.generic import TemplateView, ListView
from django.views.generic.edit import CreateView, DeleteView, FormView, UpdateView
from django.urls import reverse_lazy
from django.contrib.messages.views import SuccessMessageMixin
from django.views.generic.detail import DetailView, SingleObjectMixin
from django.shortcuts import get_object_or_404, reverse, redirect

from common.utils import int_seq
from .models import Asset, AssetGroup, IDC, AssetExtend, AdminUser, SystemUser, Tag
from .forms import AssetCreateForm, AssetGroupForm, IDCForm, AdminUserForm, SystemUserForm
from .hands import AdminUserRequiredMixin


class AssetListView(AdminUserRequiredMixin, ListView):
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    model = Asset
    context_object_name = 'asset_list'
    template_name = 'assets/asset_list.html'

    def get_queryset(self):
        queryset = super(AssetListView, self).get_queryset()
        queryset = sorted(queryset, key=self.sorted_by_valid_and_ip)
        return queryset

    @staticmethod
    def sorted_by_valid_and_ip(asset):
        ip_list = int_seq(asset.ip.split('.'))
        ip_list.insert(0, asset.is_valid()[0])
        return ip_list

    def get_context_data(self, **kwargs):
        context = {
            'app': 'Assets',
            'action': 'Asset list',
        }
        kwargs.update(context)
        return super(AssetListView, self).get_context_data(**kwargs)


class AssetCreateView(AdminUserRequiredMixin, CreateView):
    model = Asset
    form_class = AssetCreateForm
    template_name = 'assets/asset_create.html'
    success_url = reverse_lazy('assets:asset-list')

    def form_invalid(self, form):
        print(form.errors)
        return super(AssetCreateView, self).form_invalid(form)

    def get_context_data(self, **kwargs):
        context = {
            'app': 'Assets',
            'action': 'Create asset',
        }
        kwargs.update(context)
        return super(AssetCreateView, self).get_context_data(**kwargs)


class AssetUpdateView(AdminUserRequiredMixin, UpdateView):
    model = Asset
    form_class = AssetCreateForm
    template_name = 'assets/asset_update.html'
    success_url = reverse_lazy('assets:asset-list')

    def get_context_data(self, **kwargs):
        context = {
            'app': 'Assets',
            'action': 'Update asset',
        }
        kwargs.update(context)
        return super(AssetUpdateView, self).get_context_data(**kwargs)


class AssetDeleteView(DeleteView):
    model = Asset
    template_name = 'assets/delete_confirm.html'
    success_url = reverse_lazy('assets:asset-list')


class AssetDetailView(DetailView):
    model = Asset
    context_object_name = 'asset'
    template_name = 'assets/asset_detail.html'

    def get_context_data(self, **kwargs):
        asset_groups = self.object.groups.all()
        context = {
            'app': 'Assets',
            'action': 'Asset detail',
            'asset_groups_remain': [asset_group for asset_group in AssetGroup.objects.all()
                                   if asset_group not in asset_groups],
            'asset_groups': asset_groups,
        }
        kwargs.update(context)
        return super(AssetDetailView, self).get_context_data(**kwargs)


class AssetGroupCreateView(AdminUserRequiredMixin, CreateView):
    model = AssetGroup
    form_class = AssetGroupForm
    template_name = 'assets/asset_group_create.html'
    success_url = reverse_lazy('assets:asset-group-list')

    # Todo: Asset group create template select assets so hard, need be resolve next

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Create asset group'),
            'assets': Asset.objects.all(),
            # 'systemusers':SystemUser.objects.all(),
        }
        kwargs.update(context)
        return super(AssetGroupCreateView, self).get_context_data(**kwargs)


    def form_valid(self, form):
        asset_group = form.save()
        assets_id_list = self.request.POST.getlist('assets', [])
        assets = [get_object_or_404(Asset, id=asset_id) for asset_id in assets_id_list]
        asset_group.created_by = self.request.user.username or 'Admin'
        asset_group.assets.add(*tuple(assets))
        asset_group.save()
        return super(AssetGroupCreateView, self).form_valid(form)

class AssetGroupListView(AdminUserRequiredMixin, ListView):
    model = AssetGroup
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    context_object_name = 'asset_group_list'
    template_name = 'assets/asset_group_list.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Asset group list'),
            'keyword': self.request.GET.get('keyword', '')
        }
        kwargs.update(context)
        return super(AssetGroupListView, self).get_context_data(**kwargs)

    def get_queryset(self):
        self.queryset = super(AssetGroupListView, self).get_queryset()
        self.keyword = keyword = self.request.GET.get('keyword', '')
        self.sort = sort = self.request.GET.get('sort', '-date_created')

        if keyword:
            self.queryset = self.queryset.filter(Q(name__icontains=keyword) |
                                                 Q(comment__icontains=keyword))

        if sort:
            self.queryset = self.queryset.order_by(sort)
        return self.queryset


class AssetGroupDetailView(SingleObjectMixin, AdminUserRequiredMixin, ListView):
    template_name = 'assets/asset_group_detail.html'
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE

    def get(self, request, *args, **kwargs):
        self.object = self.get_object(queryset=AssetGroup.objects.all())
        return super(AssetGroupDetailView, self).get(request, *args, **kwargs)

    def get_queryset(self):
        return self.object.assets.all()

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Asset group detail'),
            'asset_group': self.object,
        }
        kwargs.update(context)
        return super(AssetGroupDetailView, self).get_context_data(**kwargs)



class AssetGroupUpdateView(AdminUserRequiredMixin, UpdateView):
    model = AssetGroup
    form_class = AssetGroupForm
    template_name = 'assets/asset_group_create.html'
    success_url = reverse_lazy('assets:asset-group-list')

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Create asset group'),
            'assets': Asset.objects.all(),
        }
        kwargs.update(context)
        return super(AssetGroupUpdateView, self).get_context_data(**kwargs)


class AssetGroupDeleteView(AdminUserRequiredMixin, DeleteView):
    template_name = 'assets/delete_confirm.html'
    model = AssetGroup
    success_url = reverse_lazy('assets:asset-group-list')


class IDCListView(AdminUserRequiredMixin, ListView):
    model = IDC
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    context_object_name = 'idc_list'
    template_name = 'assets/idc_list.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('IDC list'),
            'keyword': self.request.GET.get('keyword', '')
        }
        kwargs.update(context)
        return super(IDCListView, self).get_context_data(**kwargs)

    def get_queryset(self):
        self.queryset = super(IDCListView, self).get_queryset()
        self.keyword = keyword = self.request.GET.get('keyword', '')
        self.sort = sort = self.request.GET.get('sort', '-date_created')

        if keyword:
            self.queryset = self.queryset.filter(Q(name__icontains=keyword) |
                                                 Q(comment__icontains=keyword))

        if sort:
            self.queryset = self.queryset.order_by(sort)
        return self.queryset


class IDCCreateView(AdminUserRequiredMixin, CreateView):
    model = IDC
    form_class = IDCForm
    template_name = 'assets/idc_create_update.html'
    success_url = reverse_lazy('assets:idc-list')

    def get_context_data(self, **kwargs):
        context = {
            'app': _('assets'),
            'action': _('Create IDC'),
        }
        kwargs.update(context)
        return super(IDCCreateView, self).get_context_data(**kwargs)

    def form_valid(self, form):
        IDC = form.save(commit=False)
        IDC.created_by = self.request.user.username or 'System'
        IDC.save()
        # IDC_add_success_next(user)
        return super(IDCCreateView, self).form_valid(form)

class IDCUpdateView(AdminUserRequiredMixin, UpdateView):
    model = IDC
    form_class = IDCForm
    template_name = 'assets/idc_create_update.html'
    context_object_name = 'idc'
    success_url = reverse_lazy('assets:idc-list')

    def form_valid(self, form):
        idc = form.save(commit=False)
        idc.save()
        return super(IDCUpdateView, self).form_valid(form)

    def get_context_data(self, **kwargs):
        context = {
            'app': _('assets'),
            'action': _('Update IDC'),
        }
        kwargs.update(context)
        return super(IDCUpdateView, self).get_context_data(**kwargs)


class IDCDetailView(AdminUserRequiredMixin, DetailView):
    pass


class IDCDeleteView(AdminUserRequiredMixin, DeleteView):
    model = IDC
    template_name = 'assets/delete_confirm.html'
    success_url = reverse_lazy('assets:idc-list')


class AdminUserListView(AdminUserRequiredMixin, ListView):
    model = AdminUser
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    context_object_name = 'admin_user_list'
    template_name = 'assets/admin_user_list.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Admin user list'),
            'keyword': self.request.GET.get('keyword', '')
        }
        kwargs.update(context)
        return super(AdminUserListView, self).get_context_data(**kwargs)

    def get_queryset(self):
        # Todo: Default order by lose asset connection num
        self.queryset = super(AdminUserListView, self).get_queryset()
        self.keyword = keyword = self.request.GET.get('keyword', '')
        self.sort = sort = self.request.GET.get('sort', '-date_created')

        if keyword:
            self.queryset = self.queryset.filter(Q(name__icontains=keyword) |
                                                 Q(comment__icontains=keyword))

        if sort:
            self.queryset = self.queryset.order_by(sort)
        return self.queryset


class AdminUserCreateView(AdminUserRequiredMixin, SuccessMessageMixin, CreateView):
    model = AdminUser
    form_class = AdminUserForm
    template_name = 'assets/admin_user_create_update.html'
    success_url = reverse_lazy('assets:admin-user-list')

    def get_context_data(self, **kwargs):
        context = {
            'app': 'assets',
            'action': 'Create admin user'
        }
        kwargs.update(context)
        return super(AdminUserCreateView, self).get_context_data(**kwargs)

    def get_success_message(self, cleaned_data):
        success_message = _('Create admin user <a href="%s">%s</a> successfully.' %
                            (
                                reverse_lazy('assets:admin-user-detail', kwargs={'pk': self.object.pk}),
                                self.object.name,
                            ))
        return success_message


class AdminUserUpdateView(AdminUserRequiredMixin, UpdateView):
    model = AdminUser
    form_class = AdminUserForm
    template_name = 'assets/admin_user_create_update.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': 'assets',
            'action': 'Update admin user'
        }
        kwargs.update(context)
        return super(AdminUserUpdateView, self).get_context_data(**kwargs)

    def get_success_url(self):
        success_url = reverse_lazy('assets:admin-user-detail', pk=self.object.pk)
        return success_url


class AdminUserDetailView(AdminUserRequiredMixin, SingleObjectMixin, ListView):
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    template_name = 'assets/admin_user_detail.html'
    context_object_name = 'admin_user'

    def get(self, request, *args, **kwargs):
        self.object  = self.get_object(queryset=AdminUser.objects.all())
        return super(AdminUserDetailView, self).get(request, *args, **kwargs)

    # Todo: queryset default order by connectivity, need ops support
    def get_queryset(self):
        return self.object.assets.all()

    def get_context_data(self, **kwargs):
        context = {
            'app': 'assets',
            'action': 'Admin user detail'
        }
        kwargs.update(context)
        return super(AdminUserDetailView, self).get_context_data(**kwargs)


class AdminUserDeleteView(AdminUserRequiredMixin, DeleteView):
    model = AdminUser
    template_name = 'assets/delete_confirm.html'
    success_url = reverse_lazy('assets:admin-user-list')


class SystemUserListView(AdminUserRequiredMixin, ListView):
    model = SystemUser
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    context_object_name = 'system_user_list'
    template_name = 'assets/system_user_list.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('System user list'),
            'keyword': self.request.GET.get('keyword', '')
        }
        kwargs.update(context)
        return super(SystemUserListView, self).get_context_data(**kwargs)

    def get_queryset(self):
        # Todo: Default order by lose asset connection num
        self.queryset = super(SystemUserListView, self).get_queryset()
        self.keyword = keyword = self.request.GET.get('keyword', '')
        self.sort = sort = self.request.GET.get('sort', '-date_created')

        if keyword:
            self.queryset = self.queryset.filter(Q(name__icontains=keyword) |
                                                 Q(comment__icontains=keyword))

        if sort:
            self.queryset = self.queryset.order_by(sort)
        return self.queryset


class SystemUserCreateView(AdminUserRequiredMixin, SuccessMessageMixin, CreateView):
    model = SystemUser
    form_class = SystemUserForm
    template_name = 'assets/system_user_create_update.html'
    success_url = reverse_lazy('assets:system-user-list')

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Create system user'),
        }
        kwargs.update(context)
        return super(SystemUserCreateView, self).get_context_data(**kwargs)

    def get_success_message(self, cleaned_data):
        success_message = _('Create system user <a href="%s">%s</a> successfully.' %
                            (
                                reverse_lazy('assets:system-user-detail', kwargs={'pk': self.object.pk}),
                                self.object.name,
                            ))

        return success_message


class SystemUserUpdateView(AdminUserRequiredMixin, UpdateView):
    model = SystemUser
    form_class = SystemUserForm
    template_name = 'assets/system_user_create_update.html'

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('Update system user')
        }
        kwargs.update(context)
        return super(SystemUserUpdateView, self).get_context_data(**kwargs)

    def get_success_url(self):
        success_url = reverse_lazy('assets:system-user-detail', kwargs={'pk': self.object.pk})
        return success_url


class SystemUserDetailView(AdminUserRequiredMixin, DetailView):
    template_name = 'assets/system_user_detail.html'
    context_object_name = 'system_user'
    model = SystemUser

    def get_context_data(self, **kwargs):
        context = {
            'app': _('Assets'),
            'action': _('System user detail')
        }
        kwargs.update(context)
        return super(SystemUserDetailView, self).get_context_data(**kwargs)


class SystemUserDeleteView(AdminUserRequiredMixin, DeleteView):
    model = SystemUser
    template_name = 'assets/delete_confirm.html'
    success_url = reverse_lazy('assets:system-user-list')


class SystemUserAssetView(AdminUserRequiredMixin, SingleObjectMixin, ListView):
    paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
    template_name = 'assets/system_user_asset.html'
    context_object_name = 'system_user'

    def get(self, request, *args, **kwargs):
        self.object = self.get_object(queryset=SystemUser.objects.all())
        return super(SystemUserAssetView, self).get(request, *args, **kwargs)

    def get_asset_groups(self):
        return self.object.asset_groups.all()

    # Todo: queryset default order by connectivity, need ops support
    def get_queryset(self):
        return list(self.object.get_assets())

    def get_context_data(self, **kwargs):
        asset_groups = self.get_asset_groups()
        assets = self.get_queryset()
        context = {
            'app': 'assets',
            'action': 'System user asset',
            'assets_remain': [asset for asset in Asset.objects.all() if asset not in assets],
            'asset_groups': asset_groups,
            'asset_groups_remain': [asset_group for asset_group in AssetGroup.objects.all()
                                    if asset_group not in asset_groups]
        }
        kwargs.update(context)
        return super(SystemUserAssetView, self).get_context_data(**kwargs)


# class SystemUserAssetGroupView(AdminUserRequiredMixin, SingleObjectMixin, ListView):
#     paginate_by = settings.CONFIG.DISPLAY_PER_PAGE
#     template_name = 'assets/system_user_asset_group.html'
#     context_object_name = 'system_user'
#
#     def get(self, request, *args, **kwargs):
#         self.object = self.get_object(queryset=SystemUser.objects.all())
#         return super(SystemUserAssetGroupView, self).get(request, *args, **kwargs)
#
    # Todo: queryset default order by connectivity, need ops support
    # def get_queryset(self):
    #     return self.object.asset_groups.all()
    #
    # def get_context_data(self, **kwargs):
    #     context = {
    #         'app': 'assets',
    #         'action': 'System user asset group',
    #         'asset_groups': self.get_queryset(),
    #     }
    #     kwargs.update(context)
    #     return super(SystemUserAssetGroupView, self).get_context_data(**kwargs)