func getTransactions() ([]*ledger.Transaction, error) {
ledgerLock.Lock()
defer ledgerLock.Unlock()
ledgerFileReader, err := os.Open(ledgerFileName)
if err != nil {
return nil, err
}
trans, terr := ledger.ParseLedger(ledgerFileReader)
if terr != nil {
return nil, terr
}
ledgerFileReader.Close()
return trans, nil
}
func main() {
var startDate, endDate time.Time
startDate = time.Date(1970, 1, 1, 0, 0, 0, 0, time.Local)
endDate = time.Now().Add(time.Hour * 24)
var startString, endString string
var columnWidth, transactionDepth int
var showEmptyAccounts bool
var columnWide bool
var ledgerFileName string
ledger.TransactionDateFormat = "2006/01/02"
TransactionDateFormat := ledger.TransactionDateFormat
flag.StringVar(&ledgerFileName, "f", "", "Ledger file name (*Required).")
flag.StringVar(&startString, "b", startDate.Format(TransactionDateFormat), "Begin date of transaction processing.")
flag.StringVar(&endString, "e", endDate.Format(TransactionDateFormat), "End date of transaction processing.")
flag.BoolVar(&showEmptyAccounts, "empty", false, "Show empty (zero balance) accounts.")
flag.IntVar(&transactionDepth, "depth", -1, "Depth of transaction output (balance).")
flag.IntVar(&columnWidth, "columns", 80, "Set a column width for output.")
flag.BoolVar(&columnWide, "wide", false, "Wide output (same as --columns=132).")
flag.Parse()
if columnWidth == 80 && columnWide {
columnWidth = 132
}
if len(ledgerFileName) == 0 {
flag.Usage()
return
}
parsedStartDate, tstartErr := time.Parse(TransactionDateFormat, startString)
parsedEndDate, tendErr := time.Parse(TransactionDateFormat, endString)
if tstartErr != nil || tendErr != nil {
fmt.Println("Unable to parse start or end date string argument.")
fmt.Println("Expected format: YYYY/MM/dd")
return
}
args := flag.Args()
if len(args) == 0 {
fmt.Println("Specify a command.")
return
}
ledgerFileReader, err := os.Open(ledgerFileName)
if err != nil {
fmt.Println(err)
return
}
defer ledgerFileReader.Close()
generalLedger, parseError := ledger.ParseLedger(ledgerFileReader)
if parseError != nil {
fmt.Println(parseError)
return
}
timeStartIndex, timeEndIndex := 0, 0
for idx := 0; idx < len(generalLedger); idx++ {
if generalLedger[idx].Date.After(parsedStartDate) {
timeStartIndex = idx
break
}
}
for idx := len(generalLedger) - 1; idx >= 0; idx-- {
if generalLedger[idx].Date.Before(parsedEndDate) {
timeEndIndex = idx
break
}
}
generalLedger = generalLedger[timeStartIndex : timeEndIndex+1]
containsFilterArray := args[1:]
switch strings.ToLower(args[0]) {
case "balance", "bal":
PrintBalances(ledger.GetBalances(generalLedger, containsFilterArray), showEmptyAccounts, transactionDepth, columnWidth)
case "print":
PrintLedger(generalLedger, columnWidth)
case "register", "reg":
PrintRegister(generalLedger, containsFilterArray, columnWidth)
case "stats":
PrintStats(generalLedger)
}
}
func main() {
var ledgerFileName string
var accountSubstring, csvFileName, csvDateFormat string
var negateAmount bool
var fieldDelimiter string
flag.BoolVar(&negateAmount, "neg", false, "Negate amount column value.")
flag.StringVar(&ledgerFileName, "f", "", "Ledger file name (*Required).")
flag.StringVar(&csvDateFormat, "date-format", "01/02/2006", "Date format.")
flag.StringVar(&fieldDelimiter, "delimiter", ",", "Field delimiter.")
flag.Parse()
args := flag.Args()
if len(args) != 2 {
usage()
} else {
accountSubstring = args[0]
csvFileName = args[1]
}
csvFileReader, err := os.Open(csvFileName)
if err != nil {
fmt.Println("CSV: ", err)
return
}
defer csvFileReader.Close()
ledgerFileReader, err := os.Open(ledgerFileName)
if err != nil {
fmt.Println("Ledger: ", err)
return
}
defer ledgerFileReader.Close()
generalLedger, parseError := ledger.ParseLedger(ledgerFileReader)
if parseError != nil {
fmt.Println(parseError)
return
}
var matchingAccount string
matchingAccounts := ledger.GetBalances(generalLedger, []string{accountSubstring})
if len(matchingAccounts) < 1 {
fmt.Println("Unable to find matching account.")
return
} else {
matchingAccount = matchingAccounts[len(matchingAccounts)-1].Name
}
allAccounts := ledger.GetBalances(generalLedger, []string{})
csvReader := csv.NewReader(csvFileReader)
csvReader.Comma, _ = utf8.DecodeRuneInString(fieldDelimiter)
csvRecords, _ := csvReader.ReadAll()
classes := make([]bayesian.Class, len(allAccounts))
for i, bal := range allAccounts {
classes[i] = bayesian.Class(bal.Name)
}
classifier := bayesian.NewClassifier(classes...)
for _, tran := range generalLedger {
payeeWords := strings.Split(tran.Payee, " ")
for _, accChange := range tran.AccountChanges {
if strings.Contains(accChange.Name, "Expense") {
classifier.Learn(payeeWords, bayesian.Class(accChange.Name))
}
}
}
// Find columns from header
var dateColumn, payeeColumn, amountColumn int
dateColumn, payeeColumn, amountColumn = -1, -1, -1
for fieldIndex, fieldName := range csvRecords[0] {
fieldName = strings.ToLower(fieldName)
if strings.Contains(fieldName, "date") {
dateColumn = fieldIndex
} else if strings.Contains(fieldName, "description") {
payeeColumn = fieldIndex
} else if strings.Contains(fieldName, "payee") {
payeeColumn = fieldIndex
} else if strings.Contains(fieldName, "amount") {
amountColumn = fieldIndex
} else if strings.Contains(fieldName, "expense") {
amountColumn = fieldIndex
}
}
if dateColumn < 0 || payeeColumn < 0 || amountColumn < 0 {
fmt.Println("Unable to find columns required from header field names.")
return
}
expenseAccount := ledger.Account{Name: "unknown:unknown", Balance: new(big.Rat)}
csvAccount := ledger.Account{Name: matchingAccount, Balance: new(big.Rat)}
for _, record := range csvRecords[1:] {
inputPayeeWords := strings.Split(record[payeeColumn], " ")
csvDate, _ := time.Parse(csvDateFormat, record[dateColumn])
if !existingTransaction(generalLedger, csvDate, inputPayeeWords[0]) {
// Classify into expense account
_, likely, _ := classifier.LogScores(inputPayeeWords)
if likely >= 0 {
expenseAccount.Name = string(classifier.Classes[likely])
}
// Negate amount if required
expenseAccount.Balance.SetString(record[amountColumn])
if negateAmount {
expenseAccount.Balance.Neg(expenseAccount.Balance)
}
// Csv amount is the negative of the expense amount
csvAccount.Balance.Neg(expenseAccount.Balance)
// Create valid transaction for print in ledger format
trans := &ledger.Transaction{Date: csvDate, Payee: record[payeeColumn]}
trans.AccountChanges = []ledger.Account{csvAccount, expenseAccount}
PrintTransaction(trans, 80)
}
}
}