mirror of
https://github.com/diamondburned/cchat-discord.git
synced 2024-11-01 04:14:21 +00:00
128 lines
3.1 KiB
Go
128 lines
3.1 KiB
Go
package private
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import (
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"sort"
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"sync"
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"github.com/diamondburned/arikawa/discord"
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"github.com/diamondburned/cchat"
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"github.com/diamondburned/cchat-discord/internal/discord/channel"
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"github.com/diamondburned/cchat-discord/internal/discord/private/hub"
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"github.com/diamondburned/cchat-discord/internal/discord/state"
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"github.com/diamondburned/cchat/text"
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"github.com/diamondburned/cchat/utils/empty"
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"github.com/pkg/errors"
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)
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// I don't think the cchat specs said anything about sharing a cchat.Server, so
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// we might need to do this. Nevertheless, it seems overkill.
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type containerSet struct {
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mut sync.Mutex
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set map[cchat.ServersContainer]struct{}
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}
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func newContainerSet() *containerSet {
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return &containerSet{
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set: map[cchat.ServersContainer]struct{}{},
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}
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}
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func (cset *containerSet) Register(container cchat.ServersContainer) {
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cset.mut.Lock()
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cset.set[container] = struct{}{}
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cset.mut.Unlock()
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}
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// prependServer wraps around Server to always prepend this wrapped server on
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// top of the servers container.
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type prependServer struct{ cchat.Server }
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// PreviousID returns the appropriate parameters to prepend this server.
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func (ps prependServer) PreviousID() (cchat.ID, bool) { return "", false }
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func (cset *containerSet) AddChannel(s *state.Instance, ch *discord.Channel) {
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c, err := channel.New(s, *ch)
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if err != nil {
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return
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}
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replace := prependServer{Server: c}
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cset.mut.Lock()
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for container := range cset.set {
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container.UpdateServer(replace)
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}
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cset.mut.Unlock()
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}
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type Private struct {
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empty.Server
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state *state.Instance
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hub *hub.Server
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containers *containerSet
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}
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func New(s *state.Instance) (cchat.Server, error) {
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containers := newContainerSet()
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hubServer, err := hub.New(s, containers)
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if err != nil {
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return nil, errors.Wrap(err, "failed to make hub server")
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}
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return Private{
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state: s,
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hub: hubServer,
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containers: containers,
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}, nil
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}
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func (priv Private) ID() cchat.ID {
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// Not even a number, so no chance of colliding with snowflakes.
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return "!!!private-container!!!"
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}
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func (priv Private) Name() text.Rich {
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return text.Plain("Private Channels")
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}
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func (priv Private) AsLister() cchat.Lister { return priv }
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func (priv Private) Servers(container cchat.ServersContainer) error {
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activeIDs := priv.hub.ActiveChannelIDs()
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channels := make([]*discord.Channel, 0, len(activeIDs))
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for _, id := range activeIDs {
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c, err := priv.state.Channel(id)
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if err != nil {
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return errors.Wrap(err, "failed to get private channel")
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}
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channels = append(channels, c)
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}
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// Sort so that channels with the largest last message ID (and therefore the
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// latest message) will be on top.
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sort.Slice(channels, func(i, j int) bool {
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return channels[i].LastMessageID > channels[j].LastMessageID
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})
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servers := make([]cchat.Server, len(channels)+1)
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servers[0] = priv.hub
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for i, ch := range channels {
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c, err := channel.New(priv.state, *ch)
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if err != nil {
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return errors.Wrap(err, "failed to create server for private channel")
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}
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servers[i] = c
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}
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container.SetServers(servers)
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priv.containers.Register(container)
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return nil
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}
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