-
-
Notifications
You must be signed in to change notification settings - Fork 126
/
bot.go
51 lines (43 loc) · 1.14 KB
/
bot.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
package telegram
import (
"context"
"os"
"golang.org/x/xerrors"
)
// RunUntilCanceled is client callback which
// locks until client context is canceled.
func RunUntilCanceled(ctx context.Context, client *Client) error {
<-ctx.Done()
return ctx.Err()
}
// BotFromEnvironment creates bot client using ClientFromEnvironment
// connects to server and authenticates it.
//
// Variables:
// BOT_TOKEN — token from BotFather.
func BotFromEnvironment(
ctx context.Context,
opts Options,
setup func(ctx context.Context, client *Client) error,
cb func(ctx context.Context, client *Client) error,
) error {
client, err := ClientFromEnvironment(opts)
if err != nil {
return xerrors.Errorf("create client: %w", err)
}
if err := setup(ctx, client); err != nil {
return xerrors.Errorf("setup: %w", err)
}
return client.Run(ctx, func(ctx context.Context) error {
status, err := client.AuthStatus(ctx)
if err != nil {
return xerrors.Errorf("auth status: %w", err)
}
if !status.Authorized {
if err := client.AuthBot(ctx, os.Getenv("BOT_TOKEN")); err != nil {
return xerrors.Errorf("login: %w", err)
}
}
return cb(ctx, client)
})
}