from django.contrib import admin

from .models import Event, EventParticipation


class EventParticipationInline(admin.TabularInline):
    """Inline admin for event participations."""

    model = EventParticipation
    extra = 0
    readonly_fields = ("user",)
    fields = ("user", "status", "comment")

    def has_add_permission(self, request, obj=None):
        return False

    def has_delete_permission(self, request, obj=None):
        return False


@admin.register(Event)
class EventAdmin(admin.ModelAdmin):
    """Admin configuration for Event model."""

    list_display = ("title", "type", "date", "time", "location")
    list_filter = ("type", "date")
    search_fields = ("short_desc", "location", "desc")
    date_hierarchy = "date"
    ordering = ("-date",)

    inlines = (EventParticipationInline,)

    fieldsets = (
        (
            None,
            {
                "fields": ("type", "short_desc", "date", "end_date"),
            },
        ),
        (
            "Time",
            {
                "fields": ("time", "meeting_time"),
            },
        ),
        (
            "Location",
            {
                "fields": ("location", "map_location"),
            },
        ),
        (
            "Description",
            {
                "fields": ("desc",),
                "classes": ("collapse",),
            },
        ),
    )


@admin.register(EventParticipation)
class EventParticipationAdmin(admin.ModelAdmin):
    """Admin configuration for EventParticipation model."""

    list_display = ("event", "user", "status", "comment")
    list_filter = ("status", "event__date")
    search_fields = ("user__username", "event__short_desc", "comment")
    raw_id_fields = ("event", "user")