stillbox/pkg/nexus/client.go

102 lines
1.7 KiB
Go

package nexus
import (
"context"
"errors"
"io"
"runtime"
"sync"
"dynatron.me/x/stillbox/internal/version"
"dynatron.me/x/stillbox/pkg/calls"
"dynatron.me/x/stillbox/pkg/database"
"dynatron.me/x/stillbox/pkg/pb"
"github.com/rs/zerolog/log"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
)
type Client interface {
sync.Locker
Connection
Hello(context.Context)
HandleCommand(context.Context, *pb.Command)
HandleMessage(context.Context, []byte)
}
type client struct {
sync.RWMutex
Connection
liveState pb.LiveState
filter *calls.TalkgroupFilter
nexus *Nexus
}
type ToClient interface {
protoreflect.ProtoMessage
}
var (
ErrSentToClosed = errors.New("sent to closed connection")
)
type Connection interface {
io.Closer
CloseCh()
Shutdown()
Send(ToClient) error
}
func (n *Nexus) NewClient(conn Connection) Client {
sess := &client{
Connection: conn,
nexus: n,
}
return sess
}
func (c *client) HandleMessage(ctx context.Context, mesgBytes []byte) {
var msg pb.Command
err := proto.Unmarshal(mesgBytes, &msg)
if err != nil {
log.Error().Err(err).Msg("command unmarshal")
return
}
c.HandleCommand(ctx, &msg)
}
func pbServerInfo(ctx context.Context) *pb.ServerInfo {
cts, err := database.FromCtx(ctx).GetDatabaseSize(ctx)
if err != nil {
log.Error().Err(err).Msg("get calls table size")
cts = "unknown"
}
return &pb.ServerInfo{
ServerName: version.Name,
Version: version.Version,
Built: version.Built,
Platform: runtime.GOOS + "-" + runtime.GOARCH,
DbSize: cts,
}
}
func (c *client) Hello(ctx context.Context) {
_ = c.Send(&pb.Message{
ToClientMessage: &pb.Message_Hello{
Hello: &pb.Hello{
ServerInfo: pbServerInfo(ctx),
},
},
})
}