from django.contrib.auth.mixins import LoginRequiredMixin, PermissionRequiredMixin

from core.forms import NotificationRuleForm, NotificationSettingsForm
from core.models import NotificationRule, NotificationSettings
from core.views.helpers import ObjectCreate, ObjectDelete, ObjectList, ObjectUpdate


# Notifications - we create a new notification settings object if there isn't one
# Hence, there is only an update view, not a create view.
class NotificationsUpdate(LoginRequiredMixin, PermissionRequiredMixin, ObjectUpdate):
    permission_required = "use_rules"
    model = NotificationSettings
    form_class = NotificationSettingsForm

    page_title = "Update your notification settings"
    page_subtitle = (
        "At least the topic must be set if you want to receive notifications."
    )

    submit_url_name = "notifications_update"
    submit_url_args = ["type"]

    pk_required = False

    hide_cancel = True

    def get_object(self, **kwargs):
        notification_settings, _ = NotificationSettings.objects.get_or_create(
            user=self.request.user
        )
        return notification_settings


class RuleList(LoginRequiredMixin, ObjectList):
    list_template = "partials/rule-list.html"
    model = NotificationRule
    page_title = "List of notification rules."

    list_url_name = "rules"
    list_url_args = ["type"]

    submit_url_name = "rule_create"


class RuleCreate(LoginRequiredMixin, PermissionRequiredMixin, ObjectCreate):
    permission_required = "use_rules"
    model = NotificationRule
    form_class = NotificationRuleForm

    submit_url_name = "rule_create"


class RuleUpdate(LoginRequiredMixin, PermissionRequiredMixin, ObjectUpdate):
    permission_required = "use_rules"
    model = NotificationRule
    form_class = NotificationRuleForm

    submit_url_name = "rule_update"


class RuleDelete(LoginRequiredMixin, PermissionRequiredMixin, ObjectDelete):
    permission_required = "use_rules"
    model = NotificationRule