package vstp

import (
	"encoding/json"

	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
	"git.fjla.uk/owlboard/timetable-mgr/log"
)

// Unmarshals the JSON data and returns the schedule data
func unmarshalData(jsonData []byte) (*upstreamApi.VSTPSchedule, error) {
	var schedule upstreamApi.MsgData
	err := json.Unmarshal(jsonData, &schedule)
	if err != nil {
		log.Error("Unable to unmarshal message body: " + err.Error())
		return nil, err
	}
	log.Debug("Unmarshalling Complete")
	return &schedule.Data.CIFMsg, nil
}