support exporting timezone and account currency

pkg/utils/datetimes.go

@@ -1,6 +1,9 @@
 package utils
 
-import "time"
+import (
+	"fmt"
+	"time"
+)
 
 const (
 	longDateTimeFormat              = "2006-01-02 15:04:05"
@@ -53,6 +56,24 @@ func ParseFromShortDateTime(t string, utcOffset int16) (time.Time, error) {
 	return time.ParseInLocation(shortDateTimeFormat, t, timezone)
 }
 
+// FormatTimezoneOffset returns "+/-HH:MM" format of timezone
+func FormatTimezoneOffset(timezone *time.Location) string {
+	_, tzOffset := time.Now().In(timezone).Zone()
+	tzMinutesOffset := tzOffset / 60
+
+	sign := "+"
+	hourAbsOffset := tzMinutesOffset / 60
+	minuteAbsOffset := tzMinutesOffset % 60
+
+	if hourAbsOffset < 0 {
+		sign = "-"
+		hourAbsOffset = -hourAbsOffset
+		minuteAbsOffset = -minuteAbsOffset
+	}
+
+	return fmt.Sprintf("%s%02d:%02d", sign, hourAbsOffset, minuteAbsOffset)
+}
+
 // GetMinTransactionTimeFromUnixTime returns the minimum transaction time from unix time
 func GetMinTransactionTimeFromUnixTime(unixTime int64) int64 {
 	return unixTime * 1000

pkg/utils/datetimes_test.go

@@ -60,6 +60,28 @@ func TestParseFromShortDateTime(t *testing.T) {
 	assert.Equal(t, expectedValue, actualValue)
 }
 
+func TestFormatTimezoneOffset(t *testing.T) {
+	timezone := time.FixedZone("Test Timezone", 120*60)
+	expectedValue := "+02:00"
+	actualValue := FormatTimezoneOffset(timezone)
+	assert.Equal(t, expectedValue, actualValue)
+
+	timezone = time.FixedZone("Test Timezone", 345*60)
+	expectedValue = "+05:45"
+	actualValue = FormatTimezoneOffset(timezone)
+	assert.Equal(t, expectedValue, actualValue)
+
+	timezone = time.FixedZone("Test Timezone", -720*60)
+	expectedValue = "-12:00"
+	actualValue = FormatTimezoneOffset(timezone)
+	assert.Equal(t, expectedValue, actualValue)
+
+	timezone = time.FixedZone("Test Timezone", 0)
+	expectedValue = "+00:00"
+	actualValue = FormatTimezoneOffset(timezone)
+	assert.Equal(t, expectedValue, actualValue)
+}
+
 func TestGetMinTransactionTimeFromUnixTime(t *testing.T) {
 	expectedValue := int64(1617228083000)
 	actualValue := GetMinTransactionTimeFromUnixTime(1617228083)