ana-ledger/ledger/file.go

35 lines
672 B
Go

package ledger
import (
"github.com/howeyc/ledger"
)
type File string
func NewFile(p string) (File, error) {
f := File(p)
_, err := f.Deltas()
return f, err
}
func (file File) Deltas(like ...Like) ([]Delta, error) {
transactions, err := file.transactions()
if err != nil {
return nil, err
}
result := make([]Delta, 0, len(transactions)*2)
for _, transaction := range transactions {
for _, delta := range newDeltas(transaction) {
if !likes(like).all(delta) {
continue
}
result = append(result, delta)
}
}
return result, nil
}
func (file File) transactions() ([]*ledger.Transaction, error) {
return ledger.ParseLedgerFile(string(file))
}