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    Interface DataExportOptions

    The data export an invoicing program must be able to produce.

    Decree 23/2014. (VI. 30.) NGM requires every invoicing program to have a built-in "adóhatósági ellenőrzési adatszolgáltatás" function that exports the invoices issued in a given date range, or in a given invoice number range, as XML.

    Two structures are permitted. Annexes 2 and 3 of the decree define one (szamla.xsd); section 13/A(1) permits the other — the structure published for the online invoice data service, which is invoiceData.xsd. This implementation produces the second, because it is the same schema this project already generates, validates and round-trips against NAV's own sample documents.

    That choice belongs to the taxpayer, not to this library. If your auditor asks for the Annex 3 structure specifically, this export is not it.

    interface DataExportOptions {
        compareInvoiceNumbers?: (left: string, right: string) => number;
        invoiceNumberFrom?: string;
        invoiceNumberTo?: string;
        issueDateFrom?: string;
        issueDateTo?: string;
        now?: () => Date;
    }

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    Index
    compareInvoiceNumbers? invoiceNumberFrom? invoiceNumberTo? issueDateFrom? issueDateTo? now?
    compareInvoiceNumbers?: (left: string, right: string) => number

    How invoice numbers are ordered when a number range is given.

    The default compares digit runs numerically, so 2024/9 sorts before 2024/10. Plain text ordering puts them the other way round and would silently drop invoices from the middle of a requested range — which is the kind of mistake an audit is precisely designed to find.

    invoiceNumberFrom?: string

    First invoice number to include, inclusive.

    invoiceNumberTo?: string

    Last invoice number to include, inclusive.

    issueDateFrom?: string

    First issue date to include, inclusive, as yyyy-mm-dd.

    issueDateTo?: string

    Last issue date to include, inclusive.

    now?: () => Date

    Injectable clock, so an export is reproducible in tests.

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