2021-11-20 20:52:08 +09:00

56 lines
1.1 KiB
Go

package sse
import (
"net/http"
"github.com/aerogo/aero"
"github.com/aerogo/aero/event"
"github.com/animenotifier/notify.moe/arn"
"github.com/animenotifier/notify.moe/components/css"
"github.com/animenotifier/notify.moe/components/js"
)
var (
scriptsETag = aero.ETagString(js.Bundle())
stylesETag = aero.ETagString(css.Bundle())
)
// Events streams server events to the client.
func Events(ctx aero.Context) error {
user := arn.GetUserFromContext(ctx)
if user == nil {
return ctx.Error(http.StatusUnauthorized, "Not logged in")
}
stream := event.NewStream()
user.AddEventStream(stream)
go func() {
defer user.RemoveEventStream(stream)
// Send the ETag for the scripts
stream.Events <- event.New("etag", struct {
URL string `json:"url"`
ETag string `json:"etag"`
}{
URL: "/scripts",
ETag: scriptsETag,
})
// Send the ETag for the styles
stream.Events <- event.New("etag", struct {
URL string `json:"url"`
ETag string `json:"etag"`
}{
URL: "/styles",
ETag: stylesETag,
})
// Wait until the user closes the tab or disconnects
<-stream.Closed
}()
return ctx.EventStream(stream)
}