from odoo import models, api, _
from odoo.exceptions import UserError

class StockImmediateTransfer(models.TransientModel):
    _inherit = 'stock.immediate.transfer'

    def process(self):
        pickings_to_do = self.env['stock.picking']
        pickings_not_to_do = self.env['stock.picking']

        for line in self.immediate_transfer_line_ids:
            line.picking_id.send_mail_bills()
            line.picking_id.send_koli_to_so()
            if line.to_immediate is True:
                pickings_to_do |= line.picking_id
            else:
                pickings_not_to_do |= line.picking_id

        for picking in pickings_to_do:
            # picking.send_mail_bills()
            # picking.send_koli_to_so()
            # If still in draft => confirm and assign
            if picking.state == 'draft':
                picking.action_confirm()
                if picking.state != 'assigned':
                    picking.action_assign()
                    if picking.state != 'assigned':
                        raise UserError(_("Could not reserve all requested products. Please use the 'Mark as Todo' button to handle the reservation manually."))
            
            for move in picking.move_lines.filtered(lambda m: m.state not in ['done', 'cancel']):
                for move_line in move.move_line_ids:
                    move_line.qty_done = move_line.product_uom_qty

        pickings_to_validate = self.env.context.get('button_validate_picking_ids')
        if pickings_to_validate:
            pickings_to_validate = self.env['stock.picking'].browse(pickings_to_validate)
            pickings_to_validate = pickings_to_validate - pickings_not_to_do
            return pickings_to_validate.with_context(skip_immediate=True).button_validate()
        
        return True