package composition

import (
	"time"

	"service/internal/interfaces/satusehat"
)

func MapRequestToFHIR(req CompositionRequest) satusehat.FHIRPayload {
	payload := satusehat.NewFHIRPayload("Composition").
		Set("status", req.Status).
		Set("type", map[string]interface{}{
			"coding": []map[string]interface{}{
				{
					"system":  "http://loinc.org",
					"code":    "11503-0", // Example: Medical records
					"display": "Medical records",
				},
			},
		}).
		Set("subject", map[string]interface{}{
			"reference": "Patient/" + req.PatientID,
			"display":   req.PatientName,
		}).
		Set("encounter", map[string]interface{}{
			"reference": "Encounter/" + req.EncounterID,
		}).
		Set("date", req.Date.Format(time.RFC3339)).
		Set("title", req.Title)

	if req.PractitionerID != "" {
		payload.Append("author", map[string]interface{}{
			"reference": "Practitioner/" + req.PractitionerID,
			"display":   req.PractitionerName,
		})
	}
	return payload
}