from django.contrib import admin
from .models import Timbres, saldoModel, Clientes,ErroresTimbres
from import_export import resources,fields
from import_export.admin import ImportMixin
from datetime import datetime

from import_export import resources, fields
from datetime import datetime
from django.core.exceptions import ValidationError

class TimbresCSV(resources.ModelResource):
    created_at = fields.Field(column_name='created_at', attribute='created_at')

    class Meta:
        model = Timbres
        fields = ['uuid', 'rfcc', 'rfcp', 'fecha', 'folio', 'serie', 'tipo', 'created_at', 'modo']
        import_id_fields = ('uuid',)
        use_bulk = True
        
    def clean_created_at(self, value):
        try:
            # Convertir el valor de 'created_at' a un objeto datetime
            return datetime.strptime(value, '%Y-%m-%d %H:%M:%S')
        except ValueError:
            raise ValidationError("Formato de fecha incorrecto")
    def save_instance(self, instance, is_create, using_transactions=True, dry_run=False):
        created_at = instance.created_at
        # super().after_save_instance(instance, using_transactions, dry_run)
        # self.before_save_instance(instance, using_transactions, dry_run)        
        if is_create:            
            instance.save()
            instance.created_at =created_at
            instance.save()
        


@admin.register(Timbres)
class TimbresAdmin(ImportMixin, admin.ModelAdmin):
    list_display=['uuid', 'rfcc', 'rfcp', 'fecha', 'folio', 'serie', 'tipo', 'modo', 'created_at']
    resource_class = TimbresCSV
    list_filter=['modo','tipo']
    search_fields = ('uuid',)



class ClientesAdmin(admin.ModelAdmin):
    list_display= ['RFC','Nombre','Activo','fecha_baja']
    list_filter =['RFC','Activo']

#admin.site.register(Timbres,TimbresAdmin)
admin.site.register(saldoModel)
admin.site.register(Clientes,ClientesAdmin)
admin.site.register(ErroresTimbres)