from django.contrib import admin

from .models import Certificate


@admin.register(Certificate)
class CertificateAdmin(admin.ModelAdmin):
    list_display = ("serial_number", "user", "course", "status", "issued_at", "render_attempts")
    list_filter = ("status",)
    search_fields = ("serial_number", "user__email", "course__title")
    readonly_fields = ("pdf_hash", "pdf_path", "issued_at", "render_attempts", "render_error")
    raw_id_fields = ("user",)