from odoo import models, fields, api

class SaleOrder(models.Model):
    _inherit = 'sale.order'

    def _get_quotation_sequence_id(self):
        return self.env.ref('kosbar_erp_ext.seq_quotation').sudo()

    def _get_sales_order_sequence_id(self):
        return self.env.ref('kosbar_erp_ext.seq_sales_order').sudo()

    def _get_delivery_sequence_id(self):
        return self.env.ref('kosbar_erp_ext.seq_delivery_order').sudo()

    def action_confirm(self):
        """Override confirmation to change number from SQ to SO."""
        for order in self:
            # Quotation (draft) should have SQ prefix; confirm -> SO
            seq = self._get_sales_order_sequence_id()
            order.name = seq.with_date(order.date_order or fields.Date.context_today(self)).next_by_code()
        return super().action_confirm()

    @api.model
    def create(self, vals):
        """When creating a quotation (draft), use SQ sequence."""
        if vals.get('state') == 'draft' and not vals.get('name'):
            seq = self._get_quotation_sequence_id()
            vals['name'] = seq.with_date(vals.get('date_order') or fields.Date.context_today(self)).next_by_code()
        return super().create(vals)