109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
package hub
|
|
|
|
import (
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/diamondburned/arikawa/discord"
|
|
"github.com/diamondburned/cchat"
|
|
"github.com/diamondburned/cchat-discord/internal/discord/state"
|
|
"github.com/diamondburned/cchat/text"
|
|
"github.com/diamondburned/cchat/utils/empty"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
// automatically add all channels with active messages within the past 48 hours.
|
|
const autoAddActive = 24 * time.Hour
|
|
|
|
// activeList contains a list of channel IDs that should be put into its own
|
|
// channels.
|
|
type activeList struct {
|
|
mut sync.Mutex
|
|
active map[discord.ChannelID]struct{}
|
|
}
|
|
|
|
func makeActiveList(s *state.Instance) (*activeList, error) {
|
|
channels, err := s.PrivateChannels()
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to get private channels")
|
|
}
|
|
|
|
ids := make(map[discord.ChannelID]struct{}, len(channels))
|
|
now := time.Now()
|
|
|
|
for _, channel := range channels {
|
|
if channel.LastMessageID.Time().Add(autoAddActive).After(now) {
|
|
ids[channel.ID] = struct{}{}
|
|
}
|
|
}
|
|
|
|
return &activeList{active: ids}, nil
|
|
}
|
|
|
|
func (acList *activeList) list() []discord.ChannelID {
|
|
acList.mut.Lock()
|
|
defer acList.mut.Unlock()
|
|
|
|
var channelIDs = make([]discord.ChannelID, 0, len(acList.active))
|
|
for channelID := range acList.active {
|
|
channelIDs = append(channelIDs, channelID)
|
|
}
|
|
|
|
return channelIDs
|
|
}
|
|
|
|
func (acList *activeList) isActive(channelID discord.ChannelID) bool {
|
|
acList.mut.Lock()
|
|
defer acList.mut.Unlock()
|
|
|
|
_, ok := acList.active[channelID]
|
|
return ok
|
|
}
|
|
|
|
func (acList *activeList) add(chID discord.ChannelID) (changed bool) {
|
|
acList.mut.Lock()
|
|
defer acList.mut.Unlock()
|
|
|
|
if _, ok := acList.active[chID]; ok {
|
|
return false
|
|
}
|
|
|
|
acList.active[chID] = struct{}{}
|
|
return true
|
|
}
|
|
|
|
// Server is the server (channel) that contains all incoming DM messages that
|
|
// are not being listened.
|
|
type Server struct {
|
|
empty.Server
|
|
acList *activeList
|
|
msgs *Messages
|
|
}
|
|
|
|
func New(s *state.Instance, adder ChannelAdder) (*Server, error) {
|
|
acList, err := makeActiveList(s)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to make active guild list")
|
|
}
|
|
|
|
return &Server{
|
|
acList: acList,
|
|
msgs: NewMessages(s, acList, adder),
|
|
}, nil
|
|
}
|
|
|
|
func (hub *Server) ID() cchat.ID { return "!!!hub-server!!!" }
|
|
|
|
func (hub *Server) Name() text.Rich { return text.Plain("Incoming Messages") }
|
|
|
|
// ActiveChannelIDs returns the list of active channel IDs, that is, the channel
|
|
// IDs that should be displayed separately.
|
|
func (hub *Server) ActiveChannelIDs() []discord.ChannelID {
|
|
return hub.acList.list()
|
|
}
|
|
|
|
// Close unbinds the message handlers from the hub, invalidating it forever.
|
|
func (hub *Server) Close() { hub.msgs.cancel() }
|
|
|
|
func (hub *Server) AsMessenger() cchat.Messenger { return hub.msgs }
|