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posting.go
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posting.go
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package posting
import (
"strings"
"time"
"github.com/ananthakumaran/paisa/internal/utils"
"github.com/shopspring/decimal"
log "github.com/sirupsen/logrus"
"gorm.io/gorm"
)
const (
ASSETS = "assets"
ASSETS_CASH = "assets:cash"
INCOME = "income"
INCOME_INTEREST = "income:interest"
INCOME_DIVIDEND = "income:dividend"
INCOME_CAPITAL_GAINS = "income:capital_gains"
EXPENSES = "expenses"
EXPENSES_CHARGES = "expenses:charges"
EXPENSES_TAXES = "expenses:taxes"
LIABILITIES = "liabilities"
)
type Posting struct {
ID uint `gorm:"primaryKey" json:"id"`
TransactionID string `json:"transaction_id"`
Date time.Time `json:"date"`
Payee string `json:"payee"`
Account string `json:"account"`
Commodity string `json:"commodity"`
Quantity decimal.Decimal `json:"quantity"`
Amount decimal.Decimal `json:"amount"`
Status string `json:"status"`
TagRecurring string `json:"tag_recurring"`
TagPeriod string `json:"tag_period"`
TransactionBeginLine uint64 `json:"transaction_begin_line"`
TransactionEndLine uint64 `json:"transaction_end_line"`
FileName string `json:"file_name"`
Forecast bool `json:"forecast"`
MarketAmount decimal.Decimal `gorm:"-:all" json:"market_amount"`
behaviours []string `gorm:"-:all"`
}
func (p Posting) GroupDate() time.Time {
return p.Date
}
func (p *Posting) RestName(level int) string {
return strings.Join(strings.Split(p.Account, ":")[level:], ":")
}
func (p Posting) Negate() Posting {
clone := p
clone.Quantity = p.Quantity.Neg()
clone.Amount = p.Amount.Neg()
return clone
}
func (p *Posting) Price() decimal.Decimal {
if p.Quantity.IsZero() {
return decimal.Zero
}
return p.Amount.Div(p.Quantity)
}
func (p *Posting) AddAmount(amount decimal.Decimal) {
p.Amount = p.Amount.Add(amount)
}
func (p *Posting) AddQuantity(quantity decimal.Decimal) {
price := p.Price()
p.Quantity = p.Quantity.Add(quantity)
p.Amount = p.Quantity.Mul(price)
}
func (p Posting) WithQuantity(quantity decimal.Decimal) Posting {
clone := p
clone.Quantity = quantity
clone.Amount = quantity.Mul(p.Price())
return clone
}
func (p Posting) Behaviours() []string {
if p.behaviours == nil {
p.behaviours = Behaviours(p.Account)
}
return p.behaviours
}
func (p Posting) HasBehaviour(behaviour string) bool {
for _, b := range p.Behaviours() {
if b == behaviour {
return true
}
}
return false
}
func UpsertAll(db *gorm.DB, postings []*Posting) {
err := db.Transaction(func(tx *gorm.DB) error {
err := tx.Exec("DELETE FROM postings").Error
if err != nil {
return err
}
for _, posting := range postings {
err := tx.Create(posting).Error
if err != nil {
return err
}
}
return nil
})
if err != nil {
log.Fatal(err)
}
}
func Behaviours(account string) []string {
var behaviours []string
if utils.IsParent(account, "Assets") {
behaviours = append(behaviours, ASSETS)
}
if utils.IsSameOrParent(account, "Assets:Checking") {
behaviours = append(behaviours, ASSETS_CASH)
}
if utils.IsParent(account, "Income") {
behaviours = append(behaviours, INCOME)
}
if utils.IsSameOrParent(account, "Income:Interest") {
behaviours = append(behaviours, INCOME_INTEREST)
}
if utils.IsSameOrParent(account, "Income:Dividend") {
behaviours = append(behaviours, INCOME_DIVIDEND)
}
if utils.IsSameOrParent(account, "Income:Capital Gains") {
behaviours = append(behaviours, INCOME_CAPITAL_GAINS)
}
if utils.IsParent(account, "Expenses") {
behaviours = append(behaviours, EXPENSES)
}
if utils.IsSameOrParent(account, "Expenses:Charges") {
behaviours = append(behaviours, EXPENSES_CHARGES)
}
if utils.IsSameOrParent(account, "Expenses:Tax") {
behaviours = append(behaviours, EXPENSES_TAXES)
}
if utils.IsParent(account, "Liabilities") {
behaviours = append(behaviours, LIABILITIES)
}
return behaviours
}