ricochet-go/core/conversation.go

114 lines
2.8 KiB
Go

package core
import (
"github.com/special/notricochet/core/utils"
"github.com/special/notricochet/rpc"
"log"
"sync"
"time"
)
// XXX threading model.. this one isn't great
// XXX Should probably be under core or identity
var conversationStream *utils.Publisher = utils.CreatePublisher()
type Conversation struct {
Core *Ricochet
Contact *Contact
mutex sync.Mutex
localEntity *ricochet.Entity
remoteEntity *ricochet.Entity
messages []*ricochet.Message
}
func NewConversation(core *Ricochet, contact *Contact, remoteEntity *ricochet.Entity) *Conversation {
return &Conversation{
Core: core,
Contact: contact,
localEntity: &ricochet.Entity{IsSelf: true},
remoteEntity: remoteEntity,
messages: make([]*ricochet.Message, 0),
}
}
func ConversationEventMonitor() utils.Subscribable {
return conversationStream
}
func (c *Conversation) Receive(id uint64, timestamp int64, text string) {
message := &ricochet.Message{
Sender: c.remoteEntity,
Recipient: c.localEntity,
Timestamp: timestamp,
Identifier: id,
Status: ricochet.Message_RECEIVED,
Text: text,
}
// XXX container
// XXX limit backlog/etc
c.mutex.Lock()
c.messages = append(c.messages, message)
log.Printf("Conversation received message: %v", message)
c.mutex.Unlock()
// XXX Technically these aren't guaranteed to be in order (because
// the lock has been released) or to all arrive (because of publisher's
// dropping behavior)...
event := ricochet.ConversationEvent{
Type: ricochet.ConversationEvent_RECEIVE,
Msg: message,
}
conversationStream.Publish(event)
}
func (c *Conversation) UpdateSentStatus(id uint64, success bool) {
c.mutex.Lock()
for _, message := range c.messages {
if message.Status != ricochet.Message_SENDING || message.Identifier != id {
continue
}
if success {
message.Status = ricochet.Message_DELIVERED
} else {
message.Status = ricochet.Message_ERROR
}
c.mutex.Unlock()
event := ricochet.ConversationEvent{
Type: ricochet.ConversationEvent_UPDATE,
Msg: message,
}
conversationStream.Publish(event)
return
}
c.mutex.Unlock()
}
func (c *Conversation) Send(text string) {
// XXX protocol
// XXX check that text is ok, get identifier, etc
// XXX decide whether sending or queued based on state
message := &ricochet.Message{
Sender: c.localEntity,
Recipient: c.remoteEntity,
Timestamp: time.Now().Unix(),
Identifier: 0, // XXX
Status: ricochet.Message_SENDING, // XXX
Text: text,
}
c.mutex.Lock()
c.messages = append(c.messages, message)
log.Printf("Conversation sent message: %v", message)
c.mutex.Unlock()
event := ricochet.ConversationEvent{
Type: ricochet.ConversationEvent_SEND,
Msg: message,
}
conversationStream.Publish(event)
}