package types

import (
	"context"
	"log"

	"git.aiterp.net/rpdata/api/graph2/graphcore"
	"git.aiterp.net/rpdata/api/models"
)

type changeResolver struct{}

func (r *changeResolver) Objects(ctx context.Context, obj *models.Change) ([]graphcore.ChangeObject, error) {
	objects := obj.Objects()

	results := make([]graphcore.ChangeObject, 0, len(objects))
	for _, object := range objects {
		if changeObject, ok := object.(graphcore.ChangeObject); ok {
			results = append(results, changeObject)
		} else {
			log.Printf("Type %T needs ChangeObject impl", object)
		}
	}

	return results, nil
}

// ChangeResolver is a resolver
var ChangeResolver changeResolver