// Copyright (C) 2022 Marius Schellenberger

package main

import (
	"encoding/hex"
	"flag"
	"fmt"
	"os"

	"cachefs/pkg/fs"
	"cachefs/pkg/provider/parse"
)

var (
	version string

	dst      string
	dstkey   string
	metadata string
)

func main() {
	flag.StringVar(&dst, "dst", "", "url path to cache files (example: file:///mnt/cache)")
	flag.StringVar(&dstkey, "dstkey", "", "hex encoded encryption key for dst")
	flag.StringVar(&metadata, "data", "", "path to metadata file")
	flag.Parse()

	var (
		dstk []byte
		err  error
	)
	if dstkey != "" {
		dstk, err = hex.DecodeString(dstkey)
		fmt.Println(err)
		os.Exit(1)
	}
	dstfs, err := parse.FS(dst, dstk)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	err = fs.MetadataGenerator(metadata, dstfs)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	os.Exit(0)
}