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

_logger = logging.getLogger(__name__)


class jikimo_purchase_tier_validation(models.Model):
    _name = 'purchase.order'
    _inherit = ['purchase.order', 'tier.validation']

    _tier_validation_buttons_xpath = "/form/header/button[@id='draft_confirm'][1]"

    contract_document_id = fields.Many2one('documents.document', string='合同文件')
    contract_file = fields.Binary(related='contract_document_id.datas', string='合同文件内容')
    contract_file_name = fields.Char(related='contract_document_id.attachment_id.name', string='文件名')

    # 是否已上传合同文件
    is_upload_contract_file = fields.Boolean(string='是否已上传合同文件', default=False)

    # def button_confirm(self):
    #     self = self.with_context(skip_validation=True)
    #     return super().button_confirm()
    #
    # def _check_state_conditions(self, vals):
    #     self.ensure_one()
    #     if self._context.get('skip_validation'):
    #         return False
    #     return (
    #             self._check_state_from_condition()
    #             and vals.get(self._state_field) in self._state_to
    #     )

    def request_validation(self):
        for record in self:
            missing_fields = []
            if not record.partner_ref:
                missing_fields.append('合同名称')
            if not record.contract_number:
                missing_fields.append('合同编号')

            if missing_fields:
                raise ValidationError(_('如下字段要求必须填写：%s') % '、'.join(missing_fields))

            if not record.contract_document_id:
                raise ValidationError(_('合同文件必须上传'))

        return super(jikimo_purchase_tier_validation, self).request_validation()

    # 上传合同文件
    def upload_contract_file(self):
        print('upload_contract_file===========================')
        # self.ensure_one()
        # return {
        #     'name': _('上传合同文件'),
        #     'type': 'ir.actions.act_window',
        #     'res_model': 'ir.attachment',
        #     'view_mode': 'form',
        #     'view_type': 'form',
        #     'target': 'new',
        #     'context': {
        #         'default_res_model': self._name,
        #         'default_res_id': self.id,
        #         'default_type': 'binary',
        #         'default_mimetype': 'application/pdf,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,image/jpeg,image/png',
        #     }
        # }

        self.ensure_one()
        action = {
            'type': 'ir.actions.act_window',
            'name': _('上传合同文件'),
            'res_model': 'ir.attachment.wizard',  # 我们需要创建一个新的向导模型
            'view_mode': 'form',
            'target': 'new',
            'context': {
                'default_res_model': self._name,
                'default_res_id': self.id,
            }
        }
        return action

    # 删除合同文件
    def delete_contract_file(self):
        self.ensure_one()
        if self.contract_document_id:
            try:
                document = self.contract_document_id

                # 清空关联
                self.write({
                    'contract_document_id': False,
                    'contract_file': False,
                    'contract_file_name': False
                })

                # 删除文档
                if document:
                    document.with_context(no_attachment=True).sudo().unlink()

                self.is_upload_contract_file = False

                # 返回视图动作来刷新当前表单
                return {
                    'type': 'ir.actions.act_window',
                    'res_model': 'purchase.order',
                    'res_id': self.id,
                    'view_mode': 'form',
                    'view_type': 'form',
                    'target': 'current',
                    'flags': {'mode': 'readonly'},
                }

            except Exception as e:
                _logger.error('删除合同文件时出错: %s', str(e))
                return {
                    'type': 'ir.actions.client',
                    'tag': 'display_notification',
                    'params': {
                        'title': _('错误'),
                        'message': _('删除文件时出现错误'),
                        'type': 'danger',
                        'sticky': True,
                    }
                }

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': _('提示'),
                'message': _('没有需要删除的合同文件'),
                'type': 'warning',
                'sticky': False,
            }
        }