Enhance JSON unmarshalling for CustomTime types to handle null values and improve string parsing

mysubaru.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"log/slog"
+	"strings"
 	"time"
 )
 
@@ -496,6 +497,11 @@ type CustomTime1 struct {
 func (ct *CustomTime1) UnmarshalJSON(b []byte) (err error) {
 	// Use the correct layout string for the desired format
 	const layout = "2006-01-02T15:04:05"
+	s := strings.Trim(string(b), `"`) // Remove surrounding quotes
+	if s == "null" {
+		ct.Time = time.Time{}
+		return nil
+	}
 	ct.Time, err = time.Parse(layout, string(b))
 	return
 }
@@ -507,7 +513,13 @@ type CustomTime2 struct {
 
 // UnmarshalJSON implements the json.Unmarshaler interface
 func (ct *CustomTime2) UnmarshalJSON(b []byte) (err error) {
+	// Use the correct layout string for the desired format
 	const layout = "2006-01-02T15:04:05-0700"
-	ct.Time, err = time.Parse(layout, string(b)) // Parse the string using the custom layout
+	s := strings.Trim(string(b), `"`) // Remove surrounding quotes
+	if s == "null" {
+		ct.Time = time.Time{}
+		return nil
+	}
+	ct.Time, err = time.Parse(layout, s) // Parse the string with your custom layout
 	return
 }