// Package updatemanifests provides a common library for updating Edge platform
// manifests.
package updatemanifests

import (
	"fmt"
	"os"

	"sigs.k8s.io/kustomize/kyaml/kio"

	"edge-infra.dev/pkg/edge/gitops/fns/edgerelease"
	"edge-infra.dev/pkg/edge/gitops/fns/normalizer"
	"edge-infra.dev/pkg/edge/yamlfmt"
	"edge-infra.dev/pkg/lib/errors"
)

// Update builds a simple Kpt function pipeline from the provided
// EdgeRelease object and the Normalizer function responsible for formatting
// YAML resources.
func Update(er edgerelease.EdgeRelease, path string) error {
	n := normalizer.Normalizer{}

	ignorer, err := yamlfmt.NewIgnorer(path)
	if err != nil {
		fmt.Println(err)
		fmt.Printf("could not load ignorer with path %s\n", path)
		os.Exit(1)
	}

	rw := kio.LocalPackageReadWriter{
		PackagePath:  path,
		FileSkipFunc: ignorer.IgnorePath,
	}
	err = kio.Pipeline{
		Inputs:  []kio.Reader{&rw},
		Outputs: []kio.Writer{&rw},
		Filters: []kio.Filter{
			kio.FilterFunc(er.Run),
			kio.FilterFunc(n.Run),
		},
	}.Execute()

	if err != nil {
		return errors.New("failed to update manifests", err)
	}
	return nil
}