package observation

import (
	"encoding/json"

	"github.com/tegwick/fluid-core/internal/contract"
)

// consumerLabel names the source of a piece of feedback for the audit trail.
//
// It prefers the cohort over anything consumer-specific: the trail needs to
// know what kind of consumer said this, not which one.
func consumerLabel(f contract.FluidFeedback) string {
	if f.Cohort != nil && *f.Cohort != "" {
		return string(*f.Cohort)
	}
	return "unclassified"
}

func marshalFeedback(f contract.FluidFeedback) ([]byte, error) {
	return json.Marshal(contract.FeedbackDocument{FluidFeedback: f})
}