plugins/caldav: add route to delete event

plugins/caldav/public/event.html

@@ -4,13 +4,19 @@
 
 <p>
   <a href="/calendar">Back</a>
-  · <a href="{{.Event.URL}}/update">Edit</a>
 </p>
 
 {{$event := index .Event.Data.Events 0}}
 
 <h2>Event: {{$event.Props.Text "SUMMARY"}}</h2>
 
+<p>
+  <a href="{{.Event.URL}}/update">Edit</a>
+  <form action="{{.Event.URL}}/delete" method="post">
+    <input type="submit" value="Delete">
+  </form>
+</p>
+
 <ul>
   <li><strong>Start date</strong>: {{$event.DateTimeStart nil | formatdate}}</li>
   <li><strong>End date</strong>: {{$event.DateTimeEnd nil | formatdate}}</li>

plugins/caldav/routes.go

@@ -239,4 +239,22 @@ func registerRoutes(p *alps.GoPlugin, u *url.URL) {
 
 	p.GET("/calendar/:path/update", updateEvent)
 	p.POST("/calendar/:path/update", updateEvent)
+
+	p.POST("/calendar/:path/delete", func(ctx *alps.Context) error {
+		path, err := parseObjectPath(ctx.Param("path"))
+		if err != nil {
+			return err
+		}
+
+		c, _, err := getCalendar(u, ctx.Session)
+		if err != nil {
+			return err
+		}
+
+		if err := c.RemoveAll(path); err != nil {
+			return fmt.Errorf("failed to delete calendar object: %v", err)
+		}
+
+		return ctx.Redirect(http.StatusFound, "/calendar")
+	})
 }