29 lines
679 B
Go
29 lines
679 B
Go
package ledger
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type Deltas []Delta
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func (deltas Deltas) Like(like ...Like) Deltas {
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result := make(Deltas, 0, len(deltas))
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for i := range deltas {
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if likes(like).all(deltas[i]) {
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result = append(result, deltas[i])
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}
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}
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return result
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}
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func (deltas Deltas) Balances() (map[string]map[Currency]float64, error) {
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result := make(map[string]map[Currency]float64)
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for _, delta := range deltas {
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if _, ok := result[delta.Name]; !ok {
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result[delta.Name] = make(map[Currency]float64)
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}
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if _, ok := result[delta.Name][delta.Currency]; !ok {
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result[delta.Name][delta.Currency] = 0
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}
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result[delta.Name][delta.Currency] += delta.Value
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}
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return result, nil
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}
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