You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: rewriteLocalPlaylist.go
    path of file: ./repos/owncast/core/storageproviders
    
    the code of the file until where you have to start completion: package storageproviders

import (
	"bufio"
	"os"
	"path/filepath"

	"github.com/grafov/m3u8"
	"github.com/owncast/owncast/config"
	"github.com/owncast/owncast/core/playlist"

	log "github.com/sirupsen/logrus"
)

// rewritePlaylistLocations will take a local playlist and rewrite it to have absolute URLs to a specified location.
func rewritePlaylistLocations(localFilePath, remoteServingEndpoint, pathPrefix string) error {
	f, err := os.Open(localFilePath) // nolint
	if err != nil {
		log.Fatalln(err)
	}


    
func rewritePlaylistLocations(localFilePath, remoteServingEndpoint, pathPrefix string) error {
	f, err := os.Open(localFilePath) // nolint
	if err != nil {
		log.Fatalln(err)
	}

	p := m3u8.NewMasterPlaylist()
	if err := p.DecodeFrom(bufio.NewReader(f), false); err != nil {
		log.Warnln(err)
	}

	for _, item := range p.Variants {
		// Determine the final path to this playlist.
		var finalPath string
		if pathPrefix != "" {
			finalPath = filepath.Join(pathPrefix, "/hls")
		} else {
			finalPath = "/hls"
		}
		item.URI = remoteServingEndpoint + filepath.Join(finalPath, item.URI)
	}

	publicPath := filepath.Join(config.HLSStoragePath, filepath.Base(localFilePath))

	newPlaylist := p.String()

	return playlist.WritePlaylist(newPlaylist, publicPath)
}