gosora/common/widget_wol.go

115 lines
2.4 KiB
Go

package common
import (
"bytes"
//"log"
"net/http/httptest"
p "github.com/Azareal/Gosora/common/phrases"
min "github.com/Azareal/Gosora/common/templates"
)
type wolUsers struct {
*Header
Name string
Users []*User
UserCount int
}
func wolInit(w *Widget, sched *WidgetScheduler) error {
sched.Add(w)
return nil
}
func wolGetUsers() ([]*User, int) {
ucount := WsHub.UserCount()
// We don't want a ridiculously long list, so we'll show the number if it's too high and only show staff individually
var users []*User
if ucount < 30 {
users = WsHub.AllUsers()
if len(users) >= 30 {
users = nil
}
}
return users, ucount
}
func wolBuild(w *Widget, hvars interface{}) (string, error) {
users, ucount := wolGetUsers()
wol := &wolUsers{hvars.(*Header), p.GetTmplPhrase("widget.online_name"), users, ucount}
err := wol.Header.Theme.RunTmpl("widget_online", wol, wol.Header.Writer)
return "", err
}
func wolRender(w *Widget, hvars interface{}) (string, error) {
iTickMask := w.TickMask.Load()
if iTickMask != nil {
tickMask := iTickMask.(*Widget)
if tickMask != nil {
return tickMask.Body, nil
}
}
return wolBuild(w, hvars)
}
var wolLastUsers []*User
func wolTick(widget *Widget) error {
w := httptest.NewRecorder()
users, ucount := wolGetUsers()
inOld := func(id int) bool {
for _, user := range wolLastUsers {
if id == user.ID {
return true
}
}
return false
}
// Avoid rebuilding the widget, if the users are exactly the same as on the last tick
if len(users) == len(wolLastUsers) {
diff := false
for _, user := range users {
if !inOld(user.ID) {
diff = true
break
}
}
if !diff {
iTickMask := widget.TickMask.Load()
if iTickMask != nil {
tickMask := iTickMask.(*Widget)
if tickMask != nil {
return nil
}
}
}
}
//log.Printf("users: %+v\n", users)
//log.Printf("wolLastUsers: %+v\n", wolLastUsers)
wol := &wolUsers{SimpleDefaultHeader(w), p.GetTmplPhrase("widget.online_name"), users, ucount}
err := wol.Header.Theme.RunTmpl("widget_online", wol, wol.Header.Writer)
if err != nil {
return err
}
buf := new(bytes.Buffer)
buf.ReadFrom(w.Result().Body)
bs := buf.String()
if Config.MinifyTemplates {
bs = min.Minify(bs)
}
twidget := &Widget{}
*twidget = *widget
twidget.Body = bs
widget.TickMask.Store(twidget)
wolLastUsers = users
hTbl := GetHookTable()
_, _ = hTbl.VhookSkippable("tasks_tick_widget_wol", widget, bs)
return nil
}