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94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package bbgo
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import (
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"context"
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"fmt"
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"github.com/c9s/bbgo/pkg/bbgo/types"
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"github.com/c9s/bbgo/pkg/slack/slackstyle"
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"github.com/c9s/bbgo/pkg/util"
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"github.com/sirupsen/logrus"
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"github.com/slack-go/slack"
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"time"
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)
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type Notifier interface {
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Notify(format string, args ...interface{})
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}
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type NullNotifier struct{}
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func (n *NullNotifier) Notify(format string, args ...interface{}) {
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}
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type SlackNotifier struct {
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Slack *slack.Client
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TradingChannel string
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ErrorChannel string
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InfoChannel string
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}
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func (t *SlackNotifier) Notify(format string, args ...interface{}) {
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var slackAttachments []slack.Attachment = nil
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var slackArgsStartIdx = -1
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for idx, arg := range args {
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switch a := arg.(type) {
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// concrete type assert first
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case slack.Attachment:
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if slackArgsStartIdx == -1 {
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slackArgsStartIdx = idx
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}
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slackAttachments = append(slackAttachments, a)
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case slackstyle.SlackAttachmentCreator:
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if slackArgsStartIdx == -1 {
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slackArgsStartIdx = idx
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}
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slackAttachments = append(slackAttachments, a.SlackAttachment())
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}
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}
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var nonSlackArgs = args
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if slackArgsStartIdx > -1 {
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nonSlackArgs = args[:slackArgsStartIdx]
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}
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logrus.Infof(format, nonSlackArgs...)
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_, _, err := t.Slack.PostMessageContext(context.Background(), t.InfoChannel,
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slack.MsgOptionText(fmt.Sprintf(format, nonSlackArgs...), true),
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slack.MsgOptionAttachments(slackAttachments...))
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if err != nil {
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logrus.WithError(err).Errorf("slack error: %s", err.Error())
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}
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}
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func (t *SlackNotifier) ReportTrade(trade *types.Trade) {
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_, _, err := t.Slack.PostMessageContext(context.Background(), t.TradingChannel,
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slack.MsgOptionText(util.Render(`:handshake: trade execution @ {{ .Price }}`, trade), true),
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slack.MsgOptionAttachments(trade.SlackAttachment()))
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if err != nil {
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logrus.WithError(err).Error("slack send error")
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}
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}
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func (t *SlackNotifier) ReportPnL(report *ProfitAndLossReport) {
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attachment := report.SlackAttachment()
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_, _, err := t.Slack.PostMessageContext(context.Background(), t.TradingChannel,
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slack.MsgOptionText(util.Render(
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`:heavy_dollar_sign: Here is your *{{ .symbol }}* PnL report collected since *{{ .startTime }}*`,
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map[string]interface{}{
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"symbol": report.Symbol,
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"startTime": report.StartTime.Format(time.RFC822),
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}), true),
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slack.MsgOptionAttachments(attachment))
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if err != nil {
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logrus.WithError(err).Errorf("slack send error")
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}
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}
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