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sie.go
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sie.go
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package sie
import (
"fmt"
"strconv"
"strings"
"time"
)
type Decimal int64 // "cents"
func (d Decimal) String() string {
if d%100 == 0 {
return d.FloatString(0)
}
return d.FloatString(2)
}
func (d Decimal) FloatString(decimals int) string {
if decimals <= 0 {
return fmt.Sprintf("%d", (d+50)/100)
}
abs := d
if d < 0 {
abs = -d
}
return fmt.Sprintf("%d.%0*d", d/100, decimals, abs%100)
}
func (d Decimal) Float64() float64 {
return float64(d) / 100
}
func (d Decimal) MarshalJSON() ([]byte, error) {
return []byte(d.String()), nil
}
func ParseDecimal(s string) (Decimal, error) {
wholeStr, fracStr, ok := strings.Cut(s, ".")
if !ok {
wholeStr = s
fracStr = "0"
}
whole, err := strconv.ParseInt(wholeStr, 10, 64)
if err != nil {
return 0, fmt.Errorf("unable to parse %q (whole part): %v", s, err)
}
frac, err := strconv.ParseInt(fracStr, 10, 64)
if err != nil {
return 0, fmt.Errorf("unable to parse %q (fractional part): %v", s, err)
}
if whole < 0 {
frac = -frac
}
return Decimal(whole*100 + frac), nil
}
type Document struct {
Flag int
ProgramName string
ProgramVersion string
Format string
GeneratedAt time.Time
GeneratedBy string
Type string
OrgNo string
CompanyName string
AccountPlan string
Accounts []Account
Entries []Entry
Starts time.Time
Ends time.Time
Annotations []Annotation
}
type Account struct {
ID string
Type string
Description string
InBalance Decimal
OutBalance Decimal
}
func (a *Account) IDInt() int {
id, _ := strconv.Atoi(a.ID[:4])
return id
}
type Entry struct {
ID string
Type string
Date time.Time
Description string
Transactions []Transaction
}
type Transaction struct {
Account string
Annotations []Annotation
Amount Decimal
}
type Annotation struct {
Tag int
Text string
Description string
}
func (a Annotation) Equals(other Annotation) bool {
return a.Tag == other.Tag && a.Text == other.Text
}
func (a Annotation) String() string {
if a.Description != "" {
return a.Description
}
return fmt.Sprintf("%d-%s", a.Tag, a.Text)
}
func (d *Document) CopyForAnnotation(ann Annotation) *Document {
cpy := *d
cpy.Entries = make([]Entry, 0, len(d.Entries))
for _, e := range d.Entries {
e2 := e
e2.Transactions = make([]Transaction, 0, len(e.Transactions))
for _, t := range e.Transactions {
for _, a := range t.Annotations {
if a.Equals(ann) {
e2.Transactions = append(e2.Transactions, t)
break
}
}
}
if len(e2.Transactions) > 0 {
cpy.Entries = append(cpy.Entries, e2)
}
}
return &cpy
}
func (d *Document) CopyWithoutAnnotations() *Document {
cpy := *d
cpy.Entries = make([]Entry, 0, len(d.Entries))
for _, e := range d.Entries {
e2 := e
e2.Transactions = make([]Transaction, 0, len(e.Transactions))
for _, t := range e.Transactions {
if len(t.Annotations) == 0 {
e2.Transactions = append(e2.Transactions, t)
}
}
if len(e2.Transactions) > 0 {
cpy.Entries = append(cpy.Entries, e2)
}
}
return &cpy
}