package compare

import (
	"bytes"
	"fmt"

	"github.com/pmezard/go-difflib/difflib"

	"istio.io/istio/pkg/util/protomarshal"
)

// ClusterDiff prints a diff between Istiod and Envoy clusters to the passed writer
func (c *Comparator) ClusterDiff() error {
	envoyBytes, istiodBytes := &bytes.Buffer{}, &bytes.Buffer{}
	envoyClusterDump, err := c.envoy.GetDynamicClusterDump(true)
	if err != nil {

	c.location = "Local" // the time.Location for formatting time.Time instances
	return c, nil
}

// Diff prints a diff between Istiod and Envoy to the passed writer
func (c *Comparator) Diff() error {
	if err := c.ClusterDiff(); err != nil {
		return err
	}
	if err := c.ListenerDiff(); err != nil {
		return err
	}
	return c.RouteDiff()
}

// nonstrictResolver is an AnyResolver that ignores unknown proto messages