budgeteer/postgres/ynab-export.go
Jan Bader 6686904539
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Use zero Numeric for export instead of hardcoding 0,00
2022-02-23 21:17:43 +00:00

139 lines
3.4 KiB
Go

package postgres
import (
"context"
"encoding/csv"
"fmt"
"io"
"github.com/google/uuid"
)
type YNABExport struct {
queries *Queries
budgetID uuid.UUID
}
func NewYNABExport(context context.Context, queries *Queries, budgetID uuid.UUID) (*YNABExport, error) {
return &YNABExport{
queries: queries,
budgetID: budgetID,
}, nil
}
// ImportAssignments expects a TSV-file as exported by YNAB in the following format:
// "Month" "Category Group/Category" "Category Group" "Category" "Budgeted" "Activity" "Available"
// "Apr 2019" "Income: Next Month" "Income" "Next Month" 0,00€ 0,00€ 0,00€
//
// Activity and Available are not imported, since they are determined by the transactions and historic assignments.
func (ynab *YNABExport) ExportAssignments(context context.Context, w io.Writer) error {
csv := csv.NewWriter(w)
csv.Comma = '\t'
assignments, err := ynab.queries.GetAllAssignments(context, ynab.budgetID)
if err != nil {
return fmt.Errorf("load assignments: %w", err)
}
count := 0
for _, assignment := range assignments {
row := []string{
assignment.Date.Format("Jan 2006"),
assignment.Group + ": " + assignment.Category,
assignment.Group,
assignment.Category,
assignment.Amount.String() + "€",
NewZeroNumeric().String() + "€",
NewZeroNumeric().String() + "€",
}
err := csv.Write(row)
if err != nil {
return fmt.Errorf("write assignment: %w", err)
}
count++
}
csv.Flush()
fmt.Printf("Exported %d assignments\n", count)
return nil
}
// ImportTransactions expects a TSV-file as exported by YNAB in the following format:
// "Account" "Flag" "Date" "Payee" "Category Group/Category" "Category Group" "Category" "Memo" "Outflow" "Inflow" "Cleared"
// "Cash" "" "11.12.2021" "Transfer : Checking" "" "" "" "Brought to bank" 500,00€ 0,00€ "Cleared".
func (ynab *YNABExport) ExportTransactions(context context.Context, w io.Writer) error {
csv := csv.NewWriter(w)
csv.Comma = '\t'
transactions, err := ynab.queries.GetAllTransactionsForBudget(context, ynab.budgetID)
if err != nil {
return fmt.Errorf("load transactions: %w", err)
}
header := []string{
"Account",
"Flag",
"Date",
"Payee",
"Category Group/Category",
"Category Group",
"Category",
"Memo",
"Outflow",
"Inflow",
"Cleared",
}
err = csv.Write(header)
if err != nil {
return fmt.Errorf("write transaction: %w", err)
}
count := 0
for _, transaction := range transactions {
row := GetTransactionRow(transaction)
err := csv.Write(row)
if err != nil {
return fmt.Errorf("write transaction: %w", err)
}
count++
}
csv.Flush()
fmt.Printf("Exported %d transactions\n", count)
return nil
}
func GetTransactionRow(transaction GetAllTransactionsForBudgetRow) []string {
row := []string{
transaction.Account,
"", // Flag
transaction.Date.Format("02.01.2006"),
transaction.Payee,
}
if transaction.CategoryGroup != "" && transaction.Category != "" {
row = append(row,
transaction.CategoryGroup+" : "+transaction.Category,
transaction.CategoryGroup,
transaction.Category)
} else {
row = append(row, "", "", "")
}
row = append(row, transaction.Memo)
if transaction.Amount.IsPositive() {
row = append(row, NewZeroNumeric().String()+"€", transaction.Amount.String()+"€")
} else {
row = append(row, transaction.Amount.String()[1:]+"€", NewZeroNumeric().String()+"€")
}
return append(row, string(transaction.Status))
}