Update notifile to new json format

README.md

@@ -16,7 +16,7 @@ You can use the following example to create a file. Please note that there are c
 
 ```go
 data := notifile.Data{
-    Channel:  []string{"gotify", "telegram"},
+    Channels:  []string{"gotify", "telegram"},
     Headline: "New notification!",
     Message:  "Here you will find your message.",
 }

create.go

@@ -1,44 +1,39 @@
 package notifile
 
 import (
+	"encoding/json"
 	"errors"
 	"os"
-	"strings"
 	"time"
 )
 
 // Data is to structure the file data
 type Data struct {
-	Channel  []string
-	Headline string
-	Message  string
+	Channels []string `json:"channels"`
+	Headline string   `json:"headline"`
+	Message  string   `json:"message"`
 }
 
 // Create is to create a new notification file
 // First we create a new file with a timestamp after that we check the channel & add the data
 func Create(data Data, path string) error {
 
-	if len(data.Channel) == 0 {
+	if len(data.Channels) == 0 {
 		return errors.New("unfortunately, no channels are specified. Therefore, the file cannot be created")
 	}
 
 	if _, err := os.Stat(path); os.IsNotExist(err) {
 		return errors.New("unfortunately the directory does not exist")
 	}
 
-	name := "notifile-" + time.Now().Format("20060102150405") + ".txt"
+	name := "notifile-" + time.Now().Format("20060102150405") + ".json"
 
-	file, err := os.Create(path + "/" + name)
+	content, err := json.Marshal(data)
 	if err != nil {
 		return err
 	}
-	defer file.Close()
 
-	channel := strings.Join(data.Channel, ",")
-
-	content := "channel=" + channel + "\nheadline=" + data.Headline + "\nmessage=" + data.Message
-
-	_, err = file.WriteString(content)
+	err = os.WriteFile(path+"/"+name, content, 0644)
 	if err != nil {
 		return err
 	}