package main
import (
	"fmt"
	"os"
	"github.com/pb33f/libopenapi"
)
func main() {
	petstore, _ := os.ReadFile("petstorev3.json")
	document, err := libopenapi.NewDocument(petstore)
	if err != nil {
		panic(fmt.Sprintf("cannot create new document: %e", err))
	}
	docModel, err := document.BuildV3Model()
	if err != nil {
		panic(fmt.Sprintf("cannot create v3 model from document: %e", err))
	}
	// The following fails after the first iteration
	for schemaName, schema := range docModel.Model.Components.Schemas.FromOldest() {
		if schema.Schema().Properties != nil {
			fmt.Printf("Schema '%s' has %d properties\n", schemaName, schema.Schema().Properties.Len())
		}
	}
}