50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package ledger
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type Files []string
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func NewFiles(p string, q ...string) (Files, error) {
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f := Files(append([]string{p}, q...))
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_, err := f.Deltas()
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return f, err
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}
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func (files Files) Deltas(like ...Like) (Deltas, error) {
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transactions, err := files.transactions()
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if err != nil {
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return nil, err
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}
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result := make(Deltas, 0, len(transactions)*2)
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for _, transaction := range transactions {
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sums := map[string]float64{}
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for _, recipient := range transaction.recipients {
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sums[recipient.currency] += recipient.value
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delta := newDelta(
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transaction.date,
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transaction.description,
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recipient.name,
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recipient.value,
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recipient.currency,
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)
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result = append(result, delta)
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}
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for currency, value := range sums {
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if value == 0 {
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continue
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}
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if transaction.payee == "" {
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//return nil, fmt.Errorf("didnt find net zero and no dumping ground payee set: %+v", transaction)
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} else {
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delta := newDelta(
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transaction.date,
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transaction.description,
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transaction.payee,
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-1.0*value,
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currency,
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)
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result = append(result, delta)
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}
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}
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}
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return result.Like(like...), nil
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}
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