well formatted iCalendar like RFC5545

backend/service/ical/icsComponenter.go

@@ -0,0 +1,46 @@
+package ical
+
+import (
+	"github.com/jordic/goics"
+	"sort"
+	"strings"
+)
+
+type HtwkalenderComponent struct {
+	*goics.Component
+}
+
+func NewHtwkalenderComponent() *HtwkalenderComponent {
+	return &HtwkalenderComponent{
+		Component: goics.NewComponent(),
+	}
+}
+
+// Writes the component to the Writer
+func (c *HtwkalenderComponent) Write(w *goics.ICalEncode) {
+	w.WriteLine("BEGIN:" + c.Tipo + goics.CRLF)
+
+	// Iterate over component properties
+	var keys []string
+	for k := range c.Properties {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	for _, key := range keys {
+		vals := c.Properties[key]
+		for _, val := range vals {
+			w.WriteLine(WriteStringField(key, val))
+		}
+	}
+
+	for _, xc := range c.Elements {
+		xc.Write(w)
+	}
+
+	w.WriteLine("END:" + c.Tipo + goics.CRLF)
+}
+
+// WriteStringField UID:asdfasdfаs@dfasdf.com
+func WriteStringField(key string, val string) string {
+	return strings.ToUpper(key) + ":" + (val) + goics.CRLF
+}