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package telegram
import (
"fmt"
"github.com/pkg/errors"
"path/filepath"
"strconv"
"dev.narayana.im/narayana/telegabber/config"
"github.com/zelenin/go-tdlib/client"
)
var logConstants = map[string]int32{
":fatal": 0,
":error": 1,
":warn": 2,
":info": 3,
":debug": 4,
":verbose": 5,
":all": 1023,
}
func stringToLogConstant(c string) int32 {
level, ok := logConstants[c]
if !ok {
level = 0
}
return level
}
type TelegramClient struct {
client *client.Client
jid string
parameters *client.TdlibParameters
online bool
logVerbosity client.Option
}
// NewClient instantiates a Telegram App
func NewClient(conf config.TelegramConfig, jid string) (TelegramClient, error) {
logVerbosity := client.WithLogVerbosity(&client.SetLogVerbosityLevelRequest{
NewVerbosityLevel: stringToLogConstant(conf.Loglevel),
})
apiId, err := strconv.Atoi(conf.Tdlib.Client.APIID)
if err != nil {
return TelegramClient{}, errors.Wrap(err, "Wrong api_id")
}
parameters := client.TdlibParameters{
UseTestDc: false,
DatabaseDirectory: filepath.Join("./sessions/", jid),
FilesDirectory: filepath.Join("./sessions/", jid, "/files/"),
UseFileDatabase: true,
UseChatInfoDatabase: conf.Tdlib.Client.UseChatInfoDatabase,
UseMessageDatabase: true,
UseSecretChats: conf.Tdlib.Client.UseSecretChats,
ApiId: int32(apiId),
ApiHash: conf.Tdlib.Client.APIHash,
SystemLanguageCode: "en",
DeviceModel: conf.Tdlib.Client.DeviceModel,
SystemVersion: "1.0.0",
ApplicationVersion: conf.Tdlib.Client.ApplicationVersion,
EnableStorageOptimizer: true,
IgnoreFileNames: false,
}
return TelegramClient{
parameters: ¶meters,
jid: jid,
logVerbosity: logVerbosity,
}, nil
}
func updateHandler(tdlibClient *client.Client) {
listener := tdlibClient.GetListener()
defer listener.Close()
for update := range listener.Updates {
if update.GetClass() == client.ClassUpdate {
fmt.Printf("%#v", update)
}
}
}
func (c *TelegramClient) Connect() error {
if c.online {
return nil
}
authorizer := client.ClientAuthorizer()
authorizer.TdlibParameters <- c.parameters
tdlibClient, err := client.NewClient(authorizer, c.logVerbosity)
if err != nil {
return errors.Wrap(err, "Coudn't initialize a Telegram client instance")
}
c.client = tdlibClient
c.online = true
go updateHandler(c.client)
return nil
}
func (c *TelegramClient) Disconnect() {
if !c.online {
return
}
}
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