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composer.go
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composer.go
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package main
import (
"fmt"
"time"
arbor "github.com/arborchat/arbor-go"
)
// Composer writes arbor protocol messages
type Composer struct {
username string
sendChan chan *arbor.ProtocolMessage
}
// Reply sends a reply to `parent` with the given message content.
func (c *Composer) Reply(parent, content string) error {
chat, err := arbor.NewChatMessage(content)
if err != nil {
return err
}
chat.Parent = parent
chat.Username = c.username
proto := &arbor.ProtocolMessage{ChatMessage: chat, Type: arbor.NewMessageType}
c.sendChan <- proto
return nil
}
// Query sends a query for the message with the given ID.
func (c *Composer) Query(id string) {
c.sendChan <- &arbor.ProtocolMessage{Type: arbor.QueryType, ChatMessage: &arbor.ChatMessage{UUID: id}}
}
// AnnounceHere sends a "presence/here" META message.
func (c *Composer) AnnounceHere(sessionID string) {
c.sendChan <- &arbor.ProtocolMessage{
Type: arbor.MetaType,
Meta: map[string]string{
"presence/here": c.username + "\n" + sessionID + "\n" + fmt.Sprintf("%d", time.Now().Unix()),
},
}
}
// AnnounceLeaving sends a "presence/leave" META message.
func (c *Composer) AnnounceLeaving(sessionID string) {
c.sendChan <- &arbor.ProtocolMessage{
Type: arbor.MetaType,
Meta: map[string]string{
"presence/leave": c.username + "\n" + sessionID + "\n" + fmt.Sprintf("%d", time.Now().Unix()),
},
}
}
// AskWho sends a "presence/who" META message.
func (c *Composer) AskWho() {
c.sendChan <- &arbor.ProtocolMessage{
Type: arbor.MetaType,
Meta: map[string]string{
"presence/who": "",
},
}
}