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from django.contrib import admin
from django.db.models import Sum
from django.utils.translation import gettext_lazy as _
from sorl.thumbnail.admin import AdminImageMixin

from .admin_views import download_donor_report
from .models import (
    DjangoHero,
    Donation,
    InKindDonor,
    Payment,
    Testimonial,
    get_fundraising_id,
)


class DonatedFilter(admin.DateFieldListFilter):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.title = _("donation date")


class DonationInline(admin.TabularInline):
    fields = ["id", "created", "interval", "subscription_amount"]
    extra = 0
    model = Donation


@admin.register(DjangoHero)
class DjangoHeroAdmin(AdminImageMixin, admin.ModelAdmin):
    actions = [download_donor_report]
    inlines = [DonationInline]
    list_filter = [
        "approved",
        "created",
        "modified",
        "hero_type",
        "is_visible",
        "is_subscribed",
        ("donation__created", DonatedFilter),
    ]
    list_display = [
        "id",
        "name",
        "email",
        "created",
        "modified",
        "approved",
        "hero_type",
    ]
    list_editable = ["approved", "hero_type"]
    ordering = ["-created"]
    search_fields = ["name", "email", "stripe_customer_id"]

    def get_changeform_initial_data(self, request):
        return {"id": get_fundraising_id()}


class PaymentInline(admin.TabularInline):
    readonly_fields = ["date"]
    extra = 0
    model = Payment


@admin.register(Donation)
class Donation(admin.ModelAdmin):
    raw_id_fields = ["donor"]
    list_display = ["id", "amount", "donor", "created", "modified", "is_active"]
    list_filter = ["created", "modified", "interval"]
    ordering = ["-created"]
    inlines = [PaymentInline]
    search_fields = ["donor__name", "donor__email", "donor__stripe_customer_id"]

    def get_queryset(self, request):
        """Annotate the sum of related payments to every donation."""
        qs = super().get_queryset(request)
        return qs.annotate(amount=Sum("payment__amount"))

    def amount(self, obj):
        # Since amount is an annotated field, it is not recognized as a property
        # of the model for list_display so we need an actual method that
        # references it.
        return obj.amount

    def get_changeform_initial_data(self, request):
        return {"id": get_fundraising_id()}


@admin.register(Payment)
class PaymentAdmin(admin.ModelAdmin):
    list_display = ("id", "amount", "stripe_charge_id", "date", "donation")
    list_select_related = ("donation__donor",)
    ordering = ["-date"]
    raw_id_fields = ("donation",)
    search_fields = [
        "stripe_charge_id",
        "donation__donor__name",
        "donation__donor__email",
        "donation__donor__stripe_customer_id",
    ]


@admin.register(Testimonial)
class Testimonial(admin.ModelAdmin):
    pass


admin.site.register(InKindDonor)