from django.dispatch import receiver
from django.urls import reverse
from django.utils.translation import gettext_lazy as _
from pretalx.mail.placeholders import SimpleFunctionalMailTextPlaceholder
from pretalx.mail.signals import register_mail_placeholders
from pretalx.orga.signals import nav_event, nav_event_settings


@receiver(register_mail_placeholders)
def pretalx_musicrate_placeholders(sender, **kwargs):
    return [
        SimpleFunctionalMailTextPlaceholder(
            "assignee",
            ["submission"],
            lambda submission: (
                submission.assignee.user.name
                if hasattr(submission, "assignee")
                else "Günther"
            ),
            "Günther",
            _("The name of the submission's assignee"),
        )
    ]


@receiver(nav_event)
def pretalx_musicrate_nav_event(sender, request, **kwargs):
    if not request.user.has_perm("orga.view_submissions", request.event):
        return []
    return [
        {
            "active": request.resolver_match.view_name
            == "plugins:pretalx_musicrate:enhanced_list",
            "icon": "sticky-note-o",
            "label": _("Sessions, but better"),
            "url": reverse(
                "plugins:pretalx_musicrate:enhanced_list",
                kwargs={"event": request.event.slug},
            ),
        },
        {
            "active": request.resolver_match.view_name
            == "plugins:pretalx_musicrate:qrcode",
            "icon": "star",
            "label": _("Collective Rating"),
            "url": reverse(
                "plugins:pretalx_musicrate:qrcode", kwargs={"event": request.event.slug}
            ),
        },
    ]


@receiver(nav_event_settings)
def pretalx_musicrate_settings(sender, request, **kwargs):
    if not request.user.has_perm("orga.change_settings", request.event):
        return []
    return [
        {
            "label": _("pretalx-musicrate"),
            "url": reverse(
                "plugins:pretalx_musicrate:settings.musicrate",
                kwargs={"event": request.event.slug},
            ),
            "active": request.resolver_match.view_name
            == "plugins:pretalx_musicrate:settings.musicrate",
        }
    ]