add end read date

internal/routes/userbookputupdate.go

@@ -33,11 +33,25 @@ func PutReadUserBookHandler(ac appcontext.AppContext) {
 
 	userbook.Read = read.Read
 
+	if read.EndDate != "" {
+		d, err := parseDate(read.EndDate)
+		if err != nil {
+			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+			return
+		}
+		userbook.EndReadDate = d
+	}
+
 	//remove the book from "wanted" list when it is marked as read.
 	if userbook.Read {
 		userbook.WantRead = false
 	}
 
+	//clear the date when unread
+	if !userbook.Read {
+		userbook.EndReadDate = nil
+	}
+
 	ac.Db.Save(&userbook)
 	ac.C.String(http.StatusOK, "Success")
 }
@@ -84,17 +98,12 @@ func PutStartReadUserBookHandler(ac appcontext.AppContext) {
 		return
 	}
 
-	//string equal to "null" to unset value
-	if startDateToParse.StartDate == "null" {
-		userbook.StartReadDate = nil
-	} else {
-		startDate, err := time.Parse(time.DateOnly, startDateToParse.StartDate)
-		if err != nil {
-			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
-			return
-		}
-		userbook.StartReadDate = &startDate
+	d, err := parseDate(startDateToParse.StartDate)
+	if err != nil {
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+		return
 	}
+	userbook.StartReadDate = d
 
 	ac.Db.Save(&userbook)
 	ac.C.String(http.StatusOK, "Success")
@@ -130,7 +139,8 @@ func PutRateUserBookHandler(ac appcontext.AppContext) {
 }
 
 type userbookPutRead struct {
-	Read bool `json:"read"`
+	Read    bool   `json:"read"`
+	EndDate string `json:"endDate"`
 }
 
 type userbookPutWantRead struct {
@@ -150,6 +160,16 @@ type apiCallData struct {
 	User   model.User
 }
 
+func parseDate(dateToParse string) (*time.Time, error) {
+	//string equal to "null" to unset value
+	if dateToParse == "null" {
+		return nil, nil
+	} else {
+		startDate, err := time.Parse(time.DateOnly, dateToParse)
+		return &startDate, err
+	}
+}
+
 func retrieveDataFromContext(ac appcontext.AppContext) (apiCallData, error) {
 	bookId64, err := strconv.ParseUint(ac.C.Param("id"), 10, 64)
 	bookId := uint(bookId64)