ana-ledger/ledger/register.go

81 lines
1.5 KiB
Go

package ledger
import (
"fmt"
"slices"
"time"
)
type Register map[string]Balances
func (register Register) WithBPIs(bpis BPIs) Register {
result := make(Register)
for d := range register {
result[d] = register[d].WithBPIsAt(bpis, d)
}
return result
}
func (register Register) PushAll(other Register) {
for date := range other {
if _, ok := register[date]; !ok {
register[date] = make(Balances)
}
register[date].PushAll(other[date])
}
}
func (register Register) Names() []string {
names := map[string]int{}
for _, v := range register {
for name := range v {
names[name] = 1
}
}
result := make([]string, 0, len(register))
for k := range names {
result = append(result, k)
}
slices.Sort(result)
return result
}
func (register Register) Dates() []string {
result := make([]string, 0, len(register))
for k := range register {
result = append(result, k)
}
slices.Sort(result)
return result
}
func (register Register) Times() []time.Time {
dates := register.Dates()
result := make([]time.Time, len(dates))
for i := range dates {
result[i] = mustDateToTime(dates[i])
}
return result
}
func mustDateToTime(s string) time.Time {
result, err := dateToTime(s)
if err != nil {
panic(err)
}
return result
}
func dateToTime(s string) (time.Time, error) {
for _, layout := range []string{
"2006-01-02",
"2006-01",
} {
if t, err := time.ParseInLocation(layout, s, time.Local); err == nil {
return t, err
}
}
return time.Time{}, fmt.Errorf("no layout matching %q", s)
}