func()

in template/template.go [345:410]

• 60 lines of code
• 15 McCabe index (conditional complexity)

func (t *Template) Data(recv string, groupLabels model.LabelSet, alerts ...*types.Alert) *Data {
	data := &Data{
		Receiver:          regexp.QuoteMeta(recv),
		Status:            string(types.Alerts(alerts...).Status()),
		Alerts:            make(Alerts, 0, len(alerts)),
		GroupLabels:       KV{},
		CommonLabels:      KV{},
		CommonAnnotations: KV{},
		ExternalURL:       t.ExternalURL.String(),
	}

	// The call to types.Alert is necessary to correctly resolve the internal
	// representation to the user representation.
	for _, a := range types.Alerts(alerts...) {
		alert := Alert{
			Status:       string(a.Status()),
			Labels:       make(KV, len(a.Labels)),
			Annotations:  make(KV, len(a.Annotations)),
			StartsAt:     a.StartsAt,
			EndsAt:       a.EndsAt,
			GeneratorURL: a.GeneratorURL,
			Fingerprint:  a.Fingerprint().String(),
		}
		for k, v := range a.Labels {
			alert.Labels[string(k)] = string(v)
		}
		for k, v := range a.Annotations {
			alert.Annotations[string(k)] = string(v)
		}
		data.Alerts = append(data.Alerts, alert)
	}

	for k, v := range groupLabels {
		data.GroupLabels[string(k)] = string(v)
	}

	if len(alerts) >= 1 {
		var (
			commonLabels      = alerts[0].Labels.Clone()
			commonAnnotations = alerts[0].Annotations.Clone()
		)
		for _, a := range alerts[1:] {
			if len(commonLabels) == 0 && len(commonAnnotations) == 0 {
				break
			}
			for ln, lv := range commonLabels {
				if a.Labels[ln] != lv {
					delete(commonLabels, ln)
				}
			}
			for an, av := range commonAnnotations {
				if a.Annotations[an] != av {
					delete(commonAnnotations, an)
				}
			}
		}
		for k, v := range commonLabels {
			data.CommonLabels[string(k)] = string(v)
		}
		for k, v := range commonAnnotations {
			data.CommonAnnotations[string(k)] = string(v)
		}
	}

	return data
}