from django.contrib import admin
from django.utils.html import format_html
from import_export.admin import ImportExportMixin
from simple_history.admin import SimpleHistoryAdmin

from core.models import Stadium, StadiumAlias
from core.resources import StadiumResource


class StadiumAliasInline(admin.TabularInline):
    model = StadiumAlias
    extra = 0
    fields = ['alias', 'alias_type', 'valid_from', 'valid_until', 'is_primary']
    ordering = ['-valid_from']


@admin.register(Stadium)
class StadiumAdmin(ImportExportMixin, SimpleHistoryAdmin):
    resource_class = StadiumResource
    list_display = [
        'name',
        'sport',
        'location_display',
        'capacity_display',
        'surface',
        'roof_type',
        'opened_year',
        'home_team_count',
        'alias_count',
    ]
    list_filter = ['sport', 'country', 'surface', 'roof_type']
    search_fields = ['id', 'name', 'city', 'state']
    ordering = ['sport', 'city', 'name']
    readonly_fields = ['id', 'created_at', 'updated_at', 'map_link']
    inlines = [StadiumAliasInline]

    fieldsets = [
        (None, {
            'fields': ['id', 'sport', 'name']
        }),
        ('Location', {
            'fields': ['city', 'state', 'country', 'timezone']
        }),
        ('Coordinates', {
            'fields': ['latitude', 'longitude', 'map_link']
        }),
        ('Venue Details', {
            'fields': ['capacity', 'surface', 'roof_type', 'opened_year']
        }),
        ('Media', {
            'fields': ['image_url']
        }),
        ('Metadata', {
            'fields': ['created_at', 'updated_at'],
            'classes': ['collapse']
        }),
    ]

    def location_display(self, obj):
        return obj.location
    location_display.short_description = 'Location'

    def capacity_display(self, obj):
        if obj.capacity:
            return f"{obj.capacity:,}"
        return '-'
    capacity_display.short_description = 'Capacity'

    def home_team_count(self, obj):
        return obj.home_teams.count()
    home_team_count.short_description = 'Teams'

    def alias_count(self, obj):
        return obj.aliases.count()
    alias_count.short_description = 'Aliases'

    def map_link(self, obj):
        if obj.latitude and obj.longitude:
            return format_html(
                '<a href="https://www.google.com/maps?q={},{}" target="_blank">View on Google Maps</a>',
                obj.latitude, obj.longitude
            )
        return '-'
    map_link.short_description = 'Map'

    def get_search_results(self, request, queryset, search_term):
        """Enable autocomplete search."""
        queryset, use_distinct = super().get_search_results(request, queryset, search_term)
        return queryset, use_distinct