Handle foreign currency purchases in DKB importer

korrat

Dec 17, 2023, 9:37 AM

DWUVE75BTYH56NS2I4J2XSPCU3XTJBJQB567CC3BFMEMFUIE4KLQC

Dependencies

• [2] 7URE4HPL Add an importer for DKB account statements

Change contents

• edit in importers/dkb/src/lib.rs at line 350
  [2.8343]

  [2.8343]
  +

  + if let Some(info) = record.exchange_information {

  + posting.set_price(info.exchange_rate);

  + }
• replacement in importers/dkb/src/lib.rs at line 355
  [2.8366]→[2.8366:8435](∅→∅)
  − .build_posting(opposite_account, |_posting| {});
  [2.8366]

  [2.8435]
  + .build_posting(opposite_account, |posting| {
• edit in importers/dkb/src/lib.rs at line 360
  [2.8436]

  [2.8436]
  + if let Some(info) = record.exchange_information {

  + posting.set_amount(info.foreign_total);

  + }

  + });

  +
• edit in importers/dkb/src/lib.rs at line 443
  [2.10165]

  [2.10165]
  +

  + exchange_information: Option<CurrencyExchangeInformation>,
• edit in importers/dkb/src/lib.rs at line 470
  [2.10593]

  [2.10593]
  +

  + #[derive(Clone, Copy, Debug)]

  + struct CurrencyExchangeInformation {

  + exchange_rate: Amount,

  + foreign_total: Amount,

  + }

  +

  + impl CurrencyExchangeInformation {

  + fn extract_from_description(description: &str) -> Result<Option<Self>, Error> {

  + description

  + .find("Original ")

  + .map(|index| {

  + let (foreign_total, rest) = split_off_amount(&description[index + 9..])?;
• edit in importers/dkb/src/lib.rs at line 484
  [2.10594]

  [2.10594]
  + let exchange_rate = if let Some(rest) = rest.strip_prefix("1 Euro=") {

  + split_off_amount(rest)?.0

  + } else if let Some(rest) = rest.strip_prefix("Kurs ") {

  + let (amount, _rest) = rest.split_once(' ').unwrap_or((rest, ""));

  +

  + Amount::new(

  + Decimal::from_str_exact(amount).map_err(|_| todo!())?,

  + foreign_total.commodity,

  + )

  + } else {

  + todo!("handle {rest:?}")

  + };

  +

  + Ok(Self {

  + exchange_rate,

  + foreign_total,

  + })

  + })

  + .transpose()

  + }

  + }

  +
• edit in importers/dkb/src/lib.rs at line 624
  [2.13595]

  [2.13595]
  + let exchange_information =

  + CurrencyExchangeInformation::extract_from_description(description)

  + .map_err(Self::Error::custom)?;

  +
• edit in importers/dkb/src/lib.rs at line 634
  [2.13739]

  [2.13739]
  + exchange_information,
• edit in importers/dkb/src/lib.rs at line 711
  [2.15652]

  [2.15652]
  +
• edit in importers/dkb/src/lib.rs at line 714
  [2.15692]
  +

  + fn split_off_amount(v: &str) -> Result<(Amount, &str), Error> {

  + let index = v.find(' ').ok_or_else(|| todo!())?;

  + let index = v[index + 1..]

  + .find(' ')

  + .map_or(v.len(), |new| new + index + 1);

  +

  + let (amount, rest) = v.split_at(index);

  + let amount = parse_german_amount(amount)?;

  +

  + // Remove whitespace from the beginning

  + let rest = rest.trim_start();

  +

  + Ok((amount, rest))

  + }