# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2017  Gabriel Détraz
# Copyright © 2017  Goulven Kermarec
# Copyright © 2017  Augustin Lemesle
#
# This program 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
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

# App de recherche pour re2o
# Augustin lemesle, Gabriel Détraz, Goulven Kermarec
# Gplv2

from __future__ import unicode_literals

from django.shortcuts import render
from django.shortcuts import get_object_or_404
from django.template.context_processors import csrf
from django.template import Context, RequestContext, loader
from django.contrib.auth.decorators import login_required

from django.db.models import Q
from users.models import User, Ban, Whitelist
from machines.models import Machine, Interface
from topologie.models import Port, Switch
from cotisations.models import Facture
from preferences.models import GeneralOption
from search.forms import (
    SearchForm,
    SearchFormPlus,
    CHOICES_USER,
    CHOICES_AFF,
    initial_choices
)
from re2o.utils import SortTable

def get_results(query, request, filters={}):
    start = filters.get('s', None)
    end = filters.get('e', None)
    user_state = filters.get('u', initial_choices(CHOICES_USER))
    aff = filters.get('a', initial_choices(CHOICES_AFF))

    options, created = GeneralOption.objects.get_or_create()
    max_result = options.search_display_page

    user_state_filter = Q()
    for s in user_state:
        user_state_filter |= Q(state = s)
    
    connexion = []
   
    results = {
        'users_list': User.objects.none(),
        'machines_list' : Machine.objects.none(),
        'factures_list' : Facture.objects.none(),
        'bans_list' : Ban.objects.none(),
        'whitelists_list': Whitelist.objects.none(),
        'switch_ports_list': Port.objects.none(),
        'switches_list': Switch.objects.none()
    }

    users_filter = Q(
        user__pseudo__icontains = query
    ) | Q(
        user__adherent__name__icontains = query
    ) | Q(
        user__surname__icontains = query
    )
    if not request.user.has_perms(('cableur',)):
        users_filter &= Q(user = request.user)

    # Users
    if '0' in aff:
        filter_user_list = Q(
            adherent__room__name__icontains = query
        ) | Q(
            club__room__name__icontains = query
        ) | Q(
            pseudo__icontains = query
        ) | Q(
            adherent__name__icontains = query
        ) | Q(
            surname__icontains = query
        ) & user_state_filter
        if not request.user.has_perms(('cableur',)):
            filter_user_list &= Q(id=request.user.id)
        results['users_list'] = User.objects.filter(filter_user_list)
        results['users_list'] = SortTable.sort(
            results['users_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.USERS_INDEX
        )

    # Machines
    if '1' in aff:
        filter_machine_list = Q(
            user__pseudo__icontains = query
        ) | Q(
            user__adherent__name__icontains = query
        ) | Q(
            user__surname__icontains = query
        ) | Q(
            interface__mac_address__icontains = query
        ) | Q(
            interface__ipv4__ipv4__icontains = query
        ) | Q(
            interface__domain__name__icontains = query
        ) | Q(
            interface__domain__related_domain__name__icontains = query
        )
        if not request.user.has_perms(('cableur',)):
            filter_machine_list &= Q(user__id=request.user.id)
        results['machines_list'] = Machine.objects.filter(filter_machine_list)
        results['machines_list'] = SortTable.sort(
            results['machines_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.MACHINES_INDEX
        )

    # Factures
    if '2' in aff:
        filter_facture_list = users_filter
        if start != None:
            filter_facture_list &= Q(date__gte=start)
        if end != None:
            filter_facture_list &= Q(date__lte=end)
        results['factures_list'] = Facture.objects.filter(filter_facture_list)
        results['factures_list'] = SortTable.sort(
            results['factures_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.COTISATIONS_INDEX
        )

    # Bans
    if '3' in aff:
        date_filter = Q()
        if start != None:
            date_filter &= (
                Q(date_start__gte=start) & Q(date_end__gte=start)
            ) | (
                Q(date_start__lte=start) & Q(date_end__gte=start)
            ) | (
                Q(date_start__gte=start) & Q(date_end__lte=start)
            )
        if end != None:
            date_filter &= (
                Q(date_start__lte=end) & Q(date_end__lte=end)
            ) | (
                Q(date_start__lte=end) & Q(date_end__gte=end)
            ) | (
                Q(date_start__gte=end) & Q(date_end__lte=end)
            )
        results['bans_list'] = Ban.objects.filter(users_filter & date_filter)
        results['bans_list'] = SortTable.sort(
            results['bans_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.USERS_INDEX_BAN
        )

    # Whitelists
    if '4' in aff:
        date_filter = Q()
        if start != None:
            date_filter &= (
                Q(date_start__gte=start) & Q(date_end__gte=start)
            ) | (
                Q(date_start__lte=start) & Q(date_end__gte=start)
            ) | (
                Q(date_start__gte=start) & Q(date_end__lte=start)
            )
        if end != None:
            date_filter &= (
                Q(date_start__lte=end) & Q(date_end__lte=end)
            ) | (
                Q(date_start__lte=end) & Q(date_end__gte=end)
            ) | (
                Q(date_start__gte=end) & Q(date_end__lte=end)
            )
        results['whitelists_list'] = Whitelist.objects.filter(users_filter & date_filter)
        results['whitelists_list'] = SortTable.sort(
            results['whitelists_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.USERS_INDEX_WHITE
        )

    # Switch ports
    if '5' in aff and request.user.has_perms(('cableur',)):
        results['switch_ports_list'] = Port.objects.filter(details__icontains=query)
        results['switch_ports_list'] = SortTable.sort(
            results['switch_ports_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.TOPOLOGIE_INDEX_PORT
        )

    # Switches
    if '6' in aff and request.user.has_perms(('cableur',)):
        results['switches_list'] = Switch.objects.filter(details__icontains=query)
        results['switches_list'] = SortTable.sort(
            results['switches_list'],
            request.GET.get('col'),
            request.GET.get('order'),
            SortTable.TOPOLOGIE_INDEX
        )

    for r in results.keys():
        results[r] = results[r].distinct()[:max_result]

    results.update({'max_result': max_result})
    results.update({'search_term': query})

    return results

@login_required
def search(request):
    search_form = SearchForm(request.GET or None)
    if search_form.is_valid():
        return render(
            request,
            'search/index.html',
            get_results(
                search_form.cleaned_data.get('q', ''),
                request,
                search_form.cleaned_data
            )
        )
    return render(request, 'search/search.html', {'search_form' : search_form})

@login_required
def searchp(request):
    search_form = SearchFormPlus(request.GET or None)
    if search_form.is_valid():
        return render(
            request,
            'search/index.html',
            get_results(
                search_form.cleaned_data.get('q', ''),
                request,
                search_form.cleaned_data
            )
        )
    return render(request, 'search/search.html', {'search_form' : search_form})