the export file name uses browser time zone, the transaction time in exported file uses time zone in transaction

cmd/webserver.go

@@ -157,6 +157,7 @@ func startWebServer(c *cli.Context) error {
 
 		if config.EnableDataExport {
 			dataRoute := apiRoute.Group("/data")
+			dataRoute.Use(bindMiddleware(middlewares.HeaderInQueryString))
 			dataRoute.Use(bindMiddleware(middlewares.JWTAuthorizationByQueryString))
 			{
 				dataRoute.GET("/export.csv", bindCsv(api.DataManagements.ExportDataHandler))

pkg/api/data_managements.go

@@ -47,6 +47,15 @@ func (a *DataManagementsApi) ExportDataHandler(c *core.Context) ([]byte, string,
 		return nil, "", errs.ErrDataExportNotAllowed
 	}
 
+	timezone := time.Local
+	utcOffset, err := c.GetClientTimezoneOffset()
+
+	if err != nil {
+		log.WarnfWithRequestId(c, "[data_managements.ExportDataHandler] cannot get client timezone offset, because %s", err.Error())
+	} else {
+		timezone = time.FixedZone("Client Timezone", int(utcOffset)*60)
+	}
+
 	uid := c.GetCurrentUid()
 
 	accounts, err := a.accounts.GetAllAccountsByUid(uid)
@@ -88,14 +97,14 @@ func (a *DataManagementsApi) ExportDataHandler(c *core.Context) ([]byte, string,
 		return nil, "", errs.ErrOperationFailed
 	}
 
-	result, err := a.exporter.GetOutputContent(uid, allTransactions, accountMap, categoryMap, tagMap, tagIndexs)
+	result, err := a.exporter.GetOutputContent(uid, timezone, allTransactions, accountMap, categoryMap, tagMap, tagIndexs)
 
 	if err != nil {
 		log.ErrorfWithRequestId(c, "[data_managements.ExportDataHandler] failed to get csv format exported data for \"uid:%d\", because %s", uid, err.Error())
 		return nil, "", errs.Or(err, errs.ErrOperationFailed)
 	}
 
-	fileName := a.getFileName()
+	fileName := a.getFileName(timezone)
 
 	return result, fileName, nil
 }
@@ -150,8 +159,8 @@ func (a *DataManagementsApi) ClearDataHandler(c *core.Context) (interface{}, *er
 	return true, nil
 }
 
-func (a *DataManagementsApi) getFileName() string {
+func (a *DataManagementsApi) getFileName(timezone *time.Location) string {
-	currentTime := utils.FormatToLongDateTimeWithoutSecond(time.Now())
+	currentTime := utils.FormatUnixTimeToLongDateTimeWithoutSecond(time.Now().Unix(), timezone)
 	currentTime = strings.Replace(currentTime, "-", "_", -1)
 	currentTime = strings.Replace(currentTime, " ", "_", -1)
 	currentTime = strings.Replace(currentTime, ":", "_", -1)

pkg/cli/user_data.go

@@ -1,6 +1,8 @@
 package cli
 
 import (
+	"time"
+
 	"github.com/urfave/cli/v2"
 
 	"github.com/mayswind/lab/pkg/errs"
@@ -176,7 +178,7 @@ func (a *UserDataCli) ExportTransaction(c *cli.Context, uid int64) ([]byte, erro
 		return nil, err
 	}
 
-	result, err := a.csvExporter.GetOutputContent(uid, allTransactions, accountMap, categoryMap, tagMap, tagIndexs)
+	result, err := a.csvExporter.GetOutputContent(uid, time.Local, allTransactions, accountMap, categoryMap, tagMap, tagIndexs)
 
 	if err != nil {
 		log.BootErrorf("[user_data.ExportTransaction] failed to get csv format exported data for \"uid:%d\", because %s", uid, err.Error())

pkg/core/context.go

@@ -12,7 +12,7 @@ const requestIdFieldKey = "REQUEST_ID"
 const tokenClaimsFieldKey = "TOKEN_CLAIMS"
 const responseErrorFieldKey = "RESPONSE_ERROR"
 
-const clientTimezoneOffsetHeaderName = "X-Timezone-Offset"
+const ClientTimezoneOffsetHeaderName = "X-Timezone-Offset"
 
 // Context represents the request and response context
 type Context struct {
@@ -71,7 +71,7 @@ func (c *Context) GetCurrentUid() int64 {
 
 // GetClientTimezoneOffset returns the client timezone offset
 func (c *Context) GetClientTimezoneOffset() (int16, error) {
-	value := c.GetHeader(clientTimezoneOffsetHeaderName)
+	value := c.GetHeader(ClientTimezoneOffsetHeaderName)
 	offset, err := strconv.Atoi(value)
 
 	if err != nil {

pkg/exporters/csv_file.go

@@ -3,6 +3,7 @@ package exporters
 import (
 	"fmt"
 	"strings"
+	"time"
 
 	"github.com/mayswind/lab/pkg/models"
 	"github.com/mayswind/lab/pkg/utils"
@@ -17,7 +18,7 @@ const csvHeaderLine = "Time,Type,Category,Sub Category,Account,Amount,Account2,A
 const csvDataLineFormat = "%s,%s,%s,%s,%s,%s,%s,%s,%s,%s\n"
 
 // GetOutputContent returns the exported csv data
-func (e *CSVFileExporter) GetOutputContent(uid int64, transactions []*models.Transaction, accountMap map[int64]*models.Account, categoryMap map[int64]*models.TransactionCategory, tagMap map[int64]*models.TransactionTag, allTagIndexs map[int64][]int64) ([]byte, error) {
+func (e *CSVFileExporter) GetOutputContent(uid int64, timezone *time.Location, transactions []*models.Transaction, accountMap map[int64]*models.Account, categoryMap map[int64]*models.TransactionCategory, tagMap map[int64]*models.TransactionTag, allTagIndexs map[int64][]int64) ([]byte, error) {
 	var ret strings.Builder
 
 	ret.Grow(len(transactions) * 100)
@@ -30,7 +31,8 @@ func (e *CSVFileExporter) GetOutputContent(uid int64, transactions []*models.Tra
 			continue
 		}
 
-		transactionTime := utils.FormatToLongDateTimeWithoutSecond(utils.ParseFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime)))
+		transactionTimeZone := time.FixedZone("Transaction Timezone", int(transaction.TimezoneUtcOffset)*60)
+		transactionTime := utils.FormatUnixTimeToLongDateTimeWithoutSecond(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime), transactionTimeZone)
 		transactionType := e.getTransactionTypeName(transaction.Type)
 		category := e.getTransactionCategoryName(transaction.CategoryId, categoryMap)
 		subCategory := e.getTransactionSubCategoryName(transaction.CategoryId, categoryMap)

pkg/exporters/data_exporter.go

@@ -1,9 +1,13 @@
 package exporters
 
-import "github.com/mayswind/lab/pkg/models"
+import (
+	"time"
+
+	"github.com/mayswind/lab/pkg/models"
+)
 
 // DataExporter defines the structure of data exporter
 type DataExporter interface {
 	// GetOutputContent returns the exported data
-	GetOutputContent(uid int64, transactions []*models.Transaction, accountMap map[int64]*models.Account, categoryMap map[int64]*models.TransactionCategory, tagMap map[int64]*models.TransactionTag, allTagIndexs map[int64][]int64) ([]byte, error)
+	GetOutputContent(uid int64, timezone *time.Location, transactions []*models.Transaction, accountMap map[int64]*models.Account, categoryMap map[int64]*models.TransactionCategory, tagMap map[int64]*models.TransactionTag, allTagIndexs map[int64][]int64) ([]byte, error)
 }

pkg/middlewares/header_in_query_string.go

@@ -0,0 +1,16 @@
+package middlewares
+
+import (
+	"github.com/mayswind/lab/pkg/core"
+)
+
+const utcOffsetQueryStringParam = "utc_offset"
+
+// HeaderInQueryString puts some headers from query string
+func HeaderInQueryString(c *core.Context) {
+	utcOffset, exists := c.GetQuery(utcOffsetQueryStringParam)
+
+	if exists {
+		c.Request.Header.Set(core.ClientTimezoneOffsetHeaderName, utcOffset)
+	}
+}

pkg/utils/datetimes.go

@@ -12,8 +12,14 @@ func FormatUnixTimeToLongDateTimeInServerTimezone(unixTime int64) string {
 	return ParseFromUnixTime(unixTime).Format(longDateTimeFormat)
 }
 
-// FormatToLongDateTimeWithoutSecond returns a textual representation of the time value formatted by long date time format (no second)
+// FormatUnixTimeToLongDateTimeWithoutSecond returns a textual representation of the unix time formatted by long date time format (no second)
-func FormatToLongDateTimeWithoutSecond(t time.Time) string {
+func FormatUnixTimeToLongDateTimeWithoutSecond(unixTime int64, timezone *time.Location) string {
+	t := ParseFromUnixTime(unixTime)
+
+	if timezone != nil {
+		t = t.In(timezone)
+	}
+
 	return t.Format(longDateTimeWithoutSecondFormat)
 }
 

src/views/mobile/users/DataManagement.vue

@@ -5,7 +5,7 @@
         <f7-card>
             <f7-card-content class="no-safe-areas" :padding="false">
                 <f7-list>
-                    <f7-list-button external no-chevron target="_blank" :link="`${$constants.api.baseUrlPath}/data/export.csv?token=${$user.getToken()}`">{{ $t('Export Data') }}</f7-list-button>
+                    <f7-list-button external no-chevron target="_blank" :link="`${$constants.api.baseUrlPath}/data/export.csv?token=${$user.getToken()}&utc_offset=${currentTimezoneOffsetMinutes}`">{{ $t('Export Data') }}</f7-list-button>
                     <f7-list-button color="red" @click="clearData(null)">{{ $t('Clear User Data') }}</f7-list-button>
                 </f7-list>
             </f7-card-content>
@@ -31,6 +31,11 @@ export default {
             showInputPasswordSheetForClearData: false,
         };
     },
+    computed: {
+        currentTimezoneOffsetMinutes() {
+            return this.$utilities.getTimezoneOffsetMinutes();
+        }
+    },
     methods: {
         clearData(password) {
             const self = this;