from odoo import models, fields, api, _
from odoo.exceptions import ValidationError

class Partner(models.Model):

    _inherit = 'res.partner'

    eater = fields.Selection([('eater', 'Eater'), ('worker_eater', 'Worker and Eater')], string="Eater/Worker")
    child_eater_ids = fields.One2many("res.partner", "parent_eater_id", domain=[('customer', '=', True),
                                                                                ('eater', '=', 'eater')])
    parent_eater_id = fields.Many2one("res.partner", string="Parent Worker", readonly=True)
    barcode = fields.Char(compute="_get_bar_code", string='Barcode', store=True)
    parent_barcode = fields.Char(compute="_get_bar_code", string='Parent Barcode', store=True)
    member_card_ids = fields.One2many('member.card', 'partner_id')

    member_card_to_be_printed = fields.Boolean('Print BEES card?')
    last_printed = fields.Datetime('Last printed on')

    @api.depends('parent_eater_id', 'parent_eater_id.barcode', 'eater', 'member_card_ids')
    def _get_bar_code(self):
        for rec in self:
            if rec.eater == 'eater':
                rec.parent_barcode = rec.parent_eater_id.barcode
            elif rec.member_card_ids:
                for c in rec.member_card_ids:
                    if c.valid:
                        rec.barcode = c.barcode

    @api.multi
    def write(self, values):
        for rec in self:
            if (
                values.get('parent_eater_id')
                and rec.parent_eater_id
                and rec.parent_eater_id.id != values.get("parent_eater_id")
            ):
                raise ValidationError(_('You try to assign a eater to a worker but this eater is already assign to %s please remove it before') % rec.parent_eater_id.name)
        # replace many2many command when writing on child_eater_ids to just remove the link
        if 'child_eater_ids' in values:
            for command in values['child_eater_ids']:
                if command[0] == 2:
                    command[0] = 3
        return super(Partner, self).write(values)

    def _deactivate_active_cards(self):
        self.ensure_one()
        for card in self.member_card_ids.filtered('valid'):
            card.valid = False
            card.end_date = fields.Date.today()

    @api.multi
    def _new_card(self, reason, user_id, barcode=False):
        card_data = {
            'partner_id' : self.id,
            'responsible_id' : user_id,
            'comment' : reason,
        }
        if barcode:
            card_data['barcode'] = barcode
        self.env['member.card'].create(card_data)

    @api.multi
    def _new_eater(self, surname, name, email):
        partner_data = {

                        'lastname' : name,
                        'firstname' : surname,
                        'is_customer' : True,
                        'eater' : 'eater',
                        'parent_eater_id' : self.id,
                        'email' : email,
                        'country_id' : self.country_id.id
                        }
        return self.env['res.partner'].create(partner_data)