-
Notifications
You must be signed in to change notification settings - Fork 0
/
handlers.go
98 lines (82 loc) · 2.31 KB
/
handlers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
package natsdaemon
import (
"context"
"fmt"
api "github.com/aaletov/nats-chat/api/generated"
"github.com/hashicorp/go-multierror"
"github.com/sirupsen/logrus"
"google.golang.org/protobuf/types/known/emptypb"
)
type daemon struct {
api.UnimplementedDaemonServer
session *Session
chat *ChatConnection
logger *logrus.Entry
}
type ShutdownableDaemonServer interface {
api.DaemonServer
Shutdown() error
}
func NewDaemon(logger *logrus.Logger) ShutdownableDaemonServer {
return &daemon{
logger: logger.WithFields(logrus.Fields{
"component": "DaemonServer",
}),
}
}
func (d *daemon) Online(ctx context.Context, req *api.OnlineRequest) (*emptypb.Empty, error) {
ll := d.logger.WithFields(logrus.Fields{
"method": "Online",
})
ll.Debugf("Processing request: %s", req)
var err error
if d.session, err = Online(d.logger.Logger, req.NatsUrl, req.SenderAddress); err != nil {
return &emptypb.Empty{}, fmt.Errorf("failed to initialize session: %s", err)
}
ll.Debugf("Initialized new session: %s", req.NatsUrl)
return &emptypb.Empty{}, nil
}
func shutdownDaemon(d *daemon) error {
var err *multierror.Error
if d.chat != nil {
err = multierror.Append(err, d.chat.Close())
d.chat = nil
}
if d.session != nil {
err = multierror.Append(d.session.Close())
d.session = nil
}
return err.ErrorOrNil()
}
func (d *daemon) Offline(ctx context.Context, _ *emptypb.Empty) (*emptypb.Empty, error) {
return &emptypb.Empty{}, shutdownDaemon(d)
}
func (d *daemon) CreateChat(ctx context.Context, req *api.ChatRequest) (*emptypb.Empty, error) {
ll := d.logger.WithFields(logrus.Fields{
"method": "CreateChat",
})
var err error
if d.chat, err = d.session.Dial(req.RecepientAddress); err != nil {
return &emptypb.Empty{}, err
}
ll.Debugf("Dialed successfully: %s", req.RecepientAddress)
return &emptypb.Empty{}, nil
}
func (d *daemon) DeleteChat(ctx context.Context, req *api.ChatRequest) (*emptypb.Empty, error) {
ll := d.logger.WithFields(logrus.Fields{
"method": "DeleteChat",
})
if d.chat != nil {
err := d.chat.Close()
d.chat = nil
return &emptypb.Empty{}, err
}
ll.Debugf("Chat does not exist: %s", req.RecepientAddress)
return &emptypb.Empty{}, nil
}
func (d *daemon) Send(srv api.Daemon_SendServer) error {
return d.chat.Send(srv)
}
func (d *daemon) Shutdown() error {
return shutdownDaemon(d)
}