from django.contrib import admin
from django.http import HttpResponseRedirect
from django.core.mail import get_connection, EmailMessage

from .models import FeedbackFromForm, EmailConnectionSettings

admin.site.register(EmailConnectionSettings)


@admin.register(FeedbackFromForm)
class FeedbackFromFormAdmin(admin.ModelAdmin):
    list_display = ('created_at', 'email', 'subject', 'success')
    readonly_fields = ('success',)
    search_fields = ('email',)

    change_form_template = "mail_vanger/resend_button_form.html"

    def response_change(self, request, obj):
        if "resend-button" in request.POST:
            try:
                email_settings: EmailConnectionSettings = EmailConnectionSettings.objects.all().first()
                smtp_backend = get_connection(
                    backend="django.core.mail.backends.smtp.EmailBackend",
                    host=email_settings.host,
                    port=email_settings.port,
                    use_tls=email_settings.use_tls,
                    use_ssl=email_settings.use_ssl,
                    **{
                        'username': email_settings.username if email_settings.username else None,
                        'password': email_settings.password if email_settings.password else None,
                        'ssl_keyfile': email_settings.ssl_keyfile if email_settings.use_ssl else None,
                        'ssl_certfile': email_settings.ssl_certfile if email_settings.use_ssl else None
                    }
                )

                message = EmailMessage(
                    from_email=email_settings.username,
                    subject=obj.subject,
                    body=obj.body,
                    to=[obj.email]
                )
                smtp_backend.send_messages([message])
                obj.error_message = ''
                obj.success = True

            except Exception as e:
                obj.error_message = f'Ошибка при повторной отправке сообщения: {str(e)}'
            
            obj.save()
            return HttpResponseRedirect(".")

        return super().response_change(request, obj)