"""
django-helpdesk - A Django powered ticket tracker for small enterprise.

(c) Copyright 2008 Jutda. All Rights Reserved. See LICENSE for details.

views/feeds.py - A handful of staff-only RSS feeds to provide ticket details
                 to feed readers or similar software.
"""

from django.contrib.auth import get_user_model
from django.contrib.syndication.views import Feed
from django.db.models import Q
from django.shortcuts import get_object_or_404
from django.urls import reverse
from django.utils.translation import gettext as _
from helpdesk.models import FollowUp, Queue, Ticket


User = get_user_model()


Q_OPEN_STATUSES = Q()
for open_status in Ticket.OPEN_STATUSES:
    Q_OPEN_STATUSES |= Q(status=open_status)


class OpenTicketsByUser(Feed):
    title_template = "helpdesk/rss/ticket_title.html"
    description_template = "helpdesk/rss/ticket_description.html"

    def get_object(self, request, user_name, queue_slug=None):
        user = get_object_or_404(User, username=user_name)
        if queue_slug:
            queue = get_object_or_404(Queue, slug=queue_slug)
        else:
            queue = None

        return {"user": user, "queue": queue}

    def title(self, obj):
        if obj["queue"]:
            return _("Helpdesk: Open Tickets in queue %(queue)s for %(username)s") % {
                "queue": obj["queue"].title,
                "username": obj["user"].get_username(),
            }
        else:
            return _("Helpdesk: Open Tickets for %(username)s") % {
                "username": obj["user"].get_username(),
            }

    def description(self, obj):
        if obj["queue"]:
            return _(
                "Open and Reopened Tickets in queue %(queue)s for %(username)s"
            ) % {
                "queue": obj["queue"].title,
                "username": obj["user"].get_username(),
            }
        else:
            return _("Open and Reopened Tickets for %(username)s") % {
                "username": obj["user"].get_username(),
            }

    def link(self, obj):
        if obj["queue"]:
            return "%s?assigned_to=%s&queue=%s" % (
                reverse("helpdesk:list"),
                obj["user"].id,
                obj["queue"].id,
            )
        else:
            return "%s?assigned_to=%s" % (
                reverse("helpdesk:list"),
                obj["user"].id,
            )

    def items(self, obj):
        if obj["queue"]:
            return (
                Ticket.objects.filter(assigned_to=obj["user"])
                .filter(queue=obj["queue"])
                .filter(Q_OPEN_STATUSES)
            )
        else:
            return Ticket.objects.filter(assigned_to=obj["user"]).filter(
                Q_OPEN_STATUSES
            )

    def item_pubdate(self, item):
        return item.created

    def item_author_name(self, item):
        if item.assigned_to:
            return item.assigned_to.get_username()
        else:
            return _("Unassigned")


class UnassignedTickets(Feed):
    title_template = "helpdesk/rss/ticket_title.html"
    description_template = "helpdesk/rss/ticket_description.html"

    title = _("Helpdesk: Unassigned Tickets")
    description = _("Unassigned Open and Reopened tickets")
    link = ""  # '%s?assigned_to=' % reverse('helpdesk:list')

    def items(self, obj):
        return Ticket.objects.filter(assigned_to__isnull=True).filter(Q_OPEN_STATUSES)

    def item_pubdate(self, item):
        return item.created

    def item_author_name(self, item):
        if item.assigned_to:
            return item.assigned_to.get_username()
        else:
            return _("Unassigned")


class RecentFollowUps(Feed):
    title_template = "helpdesk/rss/recent_activity_title.html"
    description_template = "helpdesk/rss/recent_activity_description.html"

    title = _("Helpdesk: Recent Followups")
    description = _(
        "Recent FollowUps, such as e-mail replies, comments, attachments and resolutions"
    )
    link = "/tickets/"  # reverse('helpdesk:list')

    def items(self):
        return FollowUp.objects.order_by("-date")[:20]


class OpenTicketsByQueue(Feed):
    title_template = "helpdesk/rss/ticket_title.html"
    description_template = "helpdesk/rss/ticket_description.html"

    def get_object(self, request, queue_slug):
        return get_object_or_404(Queue, slug=queue_slug)

    def title(self, obj):
        return _("Helpdesk: Open Tickets in queue %(queue)s") % {
            "queue": obj.title,
        }

    def description(self, obj):
        return _("Open and Reopened Tickets in queue %(queue)s") % {
            "queue": obj.title,
        }

    def link(self, obj):
        return "%s?queue=%s" % (
            reverse("helpdesk:list"),
            obj.id,
        )

    def items(self, obj):
        return Ticket.objects.filter(queue=obj).filter(Q_OPEN_STATUSES)

    def item_pubdate(self, item):
        return item.created

    def item_author_name(self, item):
        if item.assigned_to:
            return item.assigned_to.get_username()
        else:
            return _("Unassigned")