# -*- coding: utf-8 -*-
# This file is part of the account-invoice-xrechnung-module
# from m-ds for Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.

import zipfile
from facturx import generate_from_binary
from io import BytesIO
from trytond.report import Report
from trytond.pool import Pool
from slugify import slugify
from .wizard_runreport import edoc_versions


class XReport(Report):
    'eDocument Export'
    __name__ = 'account_invoice_xrechnung.export'

    @classmethod
    def compress_as_zip(cls, fname, data):
        """ compress
        """
        content = BytesIO()
        with zipfile.ZipFile(content, 'w') as content_zip:
            content_zip.writestr(fname, data)
        return content.getvalue()

    @classmethod
    def execute(cls, ids, data):
        """ skip export-engine, run edocument-xml-convert
        """
        pool = Pool()
        IrDate = pool.get('ir.date')
        Invoice = pool.get('account.invoice')
        document_para = pool.get(data['edocument'].split('-')[0])

        EDocument = document_para[0]
        document_var = document_para[1] if len(document_para) > 1 else None

        invoice, = Invoice.browse([data['invoice']])
        template = EDocument(invoice)
        invoice_xml = template.render(edoc_versions[data['edocument']])

        file_name = slugify('%(date)s-%(descr)s' % {
            'date': IrDate.today().isoformat().replace('-', ''),
            'descr': invoice.rec_name},
            max_length=100, word_boundary=True, save_order=True)

        # if document_var and (
        #         document_var == 'ferd') and (
        #         EDocument.__name__ == 'edocument.facturxext.invoice'):
        #     # convert to zugferd
        #     pdf_data = generate_from_binary(
        #         pdf_file='pdf_content',
        #         xml=invoice_xml,
        #         check_xsd=True,
        #         pdf_metadata={
        #             'author': invoice.company.rec_name,
        #             'keywords': 'Factur-X, Invoice',
        #             'title': invoice.number,
        #             'subject': invoice.description},
        #         lang='de-DE')

        if data['as_zip'] is True:
            return (
                'zip',
                cls.compress_as_zip('%(fname)s.%(ext)s' % {
                    'fname': file_name,
                    'ext': 'xml',
                    }, invoice_xml),
                False,
                file_name)
        else:
            return ('xml', invoice_xml, False, file_name)

# end XReport