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stream.go
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stream.go
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package handler
import (
"context"
"path"
"strings"
"time"
"m3o.dev/platform/service/errors"
"m3o.dev/services/pkg/tenant"
"m3o.dev/services/stream/domain"
pb "m3o.dev/services/stream/proto"
)
type Stream struct{}
func New() *Stream {
domain.Setup()
return &Stream{}
}
func (s *Stream) CreateChannel(ctx context.Context, req *pb.CreateChannelRequest, rsp *pb.CreateChannelResponse) error {
// get the tenant
id, ok := tenant.FromContext(ctx)
if !ok {
id = "default"
}
if len(req.Name) == 0 {
return errors.BadRequest("stream.createchannel", "name is blank")
}
domain.CreateChannel(path.Join(id, req.Name), req.Description)
return nil
}
func (s *Stream) SendMessage(ctx context.Context, req *pb.SendMessageRequest, rsp *pb.SendMessageResponse) error {
if len(req.Channel) == 0 {
return errors.BadRequest("stream.sendmessage", "channel is blank")
}
if len(req.Text) == 0 {
return errors.BadRequest("stream.sendmessage", "message is blank")
}
// get the tenant
id, ok := tenant.FromContext(ctx)
if !ok {
id = "default"
}
// create tenant based channels
channel := path.Join(id, req.Channel)
// sendmessage the message
if err := domain.SendMessage(channel, req.Text); err != nil {
return errors.InternalServerError("stream.sendmessage", err.Error())
}
return nil
}
func (s *Stream) ListMessages(ctx context.Context, req *pb.ListMessagesRequest, rsp *pb.ListMessagesResponse) error {
if len(req.Channel) == 0 {
return errors.BadRequest("stream.sendmessage", "channel is blank")
}
if req.Limit <= 0 {
req.Limit = 25
}
id, ok := tenant.FromContext(ctx)
if !ok {
id = "default"
}
// create tenant based channels
channel := path.Join(id, req.Channel)
rsp.Channel = req.Channel
for _, message := range domain.ListMessages(channel, int64(req.Limit)) {
metadata := map[string]string{}
if message.Metadata != nil {
metadata["created"] = time.Unix(0, message.Metadata.Created).Format(time.RFC3339Nano)
metadata["title"] = message.Metadata.Title
metadata["description"] = message.Metadata.Description
metadata["type"] = message.Metadata.Type
metadata["image"] = message.Metadata.Image
metadata["url"] = message.Metadata.Url
metadata["site"] = message.Metadata.Site
}
rsp.Messages = append(rsp.Messages, &pb.Message{
Id: message.Id,
Text: message.Text,
Timestamp: time.Unix(0, message.Created).Format(time.RFC3339Nano),
Channel: req.Channel,
Metadata: metadata,
})
}
return nil
}
func (s *Stream) ListChannels(ctx context.Context, req *pb.ListChannelsRequest, rsp *pb.ListChannelsResponse) error {
// get the tenant
id, ok := tenant.FromContext(ctx)
if !ok {
id = "default"
}
for _, channel := range domain.ListChannels() {
if !strings.HasPrefix(channel.Id, id+"/") {
continue
}
name := strings.TrimPrefix(channel.Id, id+"/")
rsp.Channels = append(rsp.Channels, &pb.Channel{
Name: name,
Description: channel.Description,
LastActive: time.Unix(0, channel.Updated).Format(time.RFC3339Nano),
})
}
return nil
}