# This file is part of Tryton.  The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.

from trytond.pool import Pool, PoolMeta
from trytond.pyson import Eval
from trytond.model import ModelView, fields, ModelSQL, ModelSingleton

__all__ = ['Configuration', 'PrinterModel']


class Configuration(ModelSingleton, ModelSQL, ModelView):
    'Printer Configuration'
    __name__ = 'printer.configuration'

    toner_category = fields.Property(fields.Many2One('product.category',
        'Toner Category', ondelete='CASCADE', required=True, select=True))
    printer_category = fields.Property(fields.Many2One('product.category',
        'Printer Category', ondelete='CASCADE', required=True, select=True))

class PrinterModel(ModelSQL, ModelView):
    "Printer Model"
    __name__ = 'printer.printer_model'

    printer_model = fields.Many2One('product.product', 'Printer',
        required=True,
        domain=[('categories', 'child_of', [Eval('printer_category')],'parent')])
    toners = fields.Many2Many('printer.printer_model-printer.toner',
        'printer_model', 'toner', 'Toners')
    printer_category = fields.Function(
        fields.Many2One('product.category',
            'Printer Category'), 'get_printer_category')

    def get_printer_category(self, name):
        pool = Pool()
        PrinterConfiguration = pool.get('printer.configuration')
        printer_configuration = PrinterConfiguration(1)
        return printer_configuration.printer_category.id

    @staticmethod
    def default_printer_category():
        pool = Pool()
        PrinterConfiguration = pool.get('printer.configuration')
        printer_configuration = PrinterConfiguration(1)
        return printer_configuration.printer_category.id