Mlcavalho1andClaude Sonnet 4.6
83dff2de78
Parser OFX tolerante ao formato SGML de bancos brasileiros (sem closing tags, BOM, timezone suffix). Parser CSV com separador de campo/decimal configurável. Dedup por FITID (OFX) ou date+amount+desc normalizado. Fluxo: POST /preview → revisão na UI → POST /confirm salva e loga. Migration 002 adiciona external_id com unique index. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
100 lines
1.9 KiB
Go
100 lines
1.9 KiB
Go
package parser
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import (
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"encoding/csv"
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"fmt"
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"io"
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"math"
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"strconv"
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"strings"
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"time"
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"financeiro-carvalho/internal/model"
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)
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func ParseCSV(r io.Reader, m model.CSVMapping) ([]model.ImportRow, []string) {
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if m.DateFormat == "" {
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m.DateFormat = "02/01/2006"
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}
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if m.DecimalSeparator == "" {
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m.DecimalSeparator = ","
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}
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fieldSep := ','
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if m.FieldSeparator == ";" {
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fieldSep = ';'
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}
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reader := csv.NewReader(r)
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reader.Comma = fieldSep
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reader.LazyQuotes = true
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reader.TrimLeadingSpace = true
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var rows []model.ImportRow
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var errs []string
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lineNum := 0
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for {
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record, err := reader.Read()
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if err == io.EOF {
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break
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}
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lineNum++
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if err != nil {
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errs = append(errs, fmt.Sprintf("linha %d: %v", lineNum, err))
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continue
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}
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if lineNum == 1 && m.HasHeader {
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continue
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}
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maxCol := max3(m.DateColumn, m.AmountColumn, m.DescriptionColumn)
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if len(record) <= maxCol {
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errs = append(errs, fmt.Sprintf("linha %d: colunas insuficientes (%d)", lineNum, len(record)))
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continue
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}
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dateStr := strings.TrimSpace(record[m.DateColumn])
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amtStr := strings.TrimSpace(record[m.AmountColumn])
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desc := cleanDescription(record[m.DescriptionColumn])
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t, err := time.Parse(m.DateFormat, dateStr)
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if err != nil {
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errs = append(errs, fmt.Sprintf("linha %d: data inválida %q", lineNum, dateStr))
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continue
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}
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if m.DecimalSeparator == "," {
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amtStr = strings.ReplaceAll(amtStr, ".", "")
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amtStr = strings.ReplaceAll(amtStr, ",", ".")
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}
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amt, err := strconv.ParseFloat(amtStr, 64)
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if err != nil {
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errs = append(errs, fmt.Sprintf("linha %d: valor inválido %q", lineNum, amtStr))
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continue
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}
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txType := "expense"
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if amt > 0 {
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txType = "income"
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}
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rows = append(rows, model.ImportRow{
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Date: t.Format("2006-01-02"),
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Amount: math.Abs(amt),
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Description: desc,
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Type: txType,
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})
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}
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return rows, errs
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}
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func max3(a, b, c int) int {
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if b > a {
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a = b
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}
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if c > a {
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a = c
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}
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return a
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}
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