package main

import (
	"crypto/sha1"
	"encoding/hex"
	"flag"
	"fmt"
	"os"

	platformpvf "longheng.io/server/internal/platform/pvf"
)

func main() {
	pvfPath := flag.String("pvf", "", "input PVF")
	outPath := flag.String("out", "", "output list file")
	flag.Parse()
	if *pvfPath == "" || *outPath == "" {
		fmt.Println("need -pvf and -out")
		return
	}
	archive, err := platformpvf.Open(*pvfPath)
	if err != nil {
		panic(err)
	}
	f, err := os.Create(*outPath)
	if err != nil {
		panic(err)
	}
	defer f.Close()
	count := 0
	archive.RangePaths(func(path string) bool {
		file, ok := archive.FindFile(path)
		if !ok {
			return true
		}
		raw, err := archive.FileRaw(file.Index)
		if err != nil {
			return true
		}
		sum := sha1.Sum(raw)
		fmt.Fprintf(f, "%s\t%d\t%s\n", path, len(raw), hex.EncodeToString(sum[:]))
		count++
		return true
	})
	fmt.Println("files:", count)
}