package main

import (
	"crypto/sha256"
	"fmt"
	"os"
	"os/exec"
	"path/filepath"
	"strings"
	"time"

	"go.wit.com/lib/cobol"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/zoopb"
	"go.wit.com/log"
)

// make a list of the newest .deb files
func doNewest(arch string) (string, error) {
	log.Info("Processing dir", filepath.Join(me.pb.BaseDir, "pool"))

	newest := zoopb.NewPackages()
	for p := range me.pb.IterAll() {
		if p.Architecture != arch {
			continue
		}
		found := newest.FindByPackage(p.Package)
		if found == nil {
			// package is new
			log.Printf("%-20.20s %-20.20s %-80.80s\n", "new package", p.Package, p.Filename)
			newest.Clone(p)
			continue
		}
		curtime := p.Ctime.AsTime()
		newtime := found.Ctime.AsTime()
		durs := cobol.Since(p.Ctime) + " vs found " + cobol.Since(found.Ctime)
		if time.Since(curtime) > time.Since(newtime) {
			log.Printf("%-20.20s %-20.20s %-80.80s %s\n", "found is newer", p.Package, p.Filename, durs)
		} else {
			log.Printf("%-20.20s %-20.20s %-80.80s %s\n", "found is older", p.Package, p.Filename, durs)
			newest.Delete(found)
			newest.Clone(p)
		}
	}

	newest.SortPackage()
	thefile := doMakePackagesFile(newest)

	fullname := "/home/mirrors/wit/dists/sid/main/binary-amd64/Packages"
	if err := os.WriteFile(fullname, []byte(thefile), 0644); err != nil {
		return fullname, err
	}
	panic("file is: " + fullname)

	r, err := shell.RunVerbose([]string{"gzip", "-k", fullname})
	log.Info(r, err)
	// r, err := shell.RunVerbose([]string{"gzip", fullname})
	// panic("blah")
	// shell.RunVerbose([]string{"bzip2", "-k", fullname})
	// shell.RunVerbose([]string{"bzip2", fullname})

	allfiles, _ := FindFiles("dists/sid/main")
	for i, filename := range allfiles {
		log.Info(i, filename)
	}

	releasePath := filepath.Join("/home/mirrors/wit/dists/sid", "Release")

	rfile, _ := os.OpenFile(releasePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
	fmt.Fprintf(rfile, "Origin: WIT.COM Debian Sid\n")
	fmt.Fprintf(rfile, "Label: WIT.COM Debian Sid\n")
	fmt.Fprintf(rfile, "Suite: sid\n")
	fmt.Fprintf(rfile, "Codename: sid\n")
	fmt.Fprintf(rfile, "Date: %s\n", time.Now().UTC().Format(time.RFC1123Z))
	fmt.Fprintf(rfile, "Architectures: riscv64 amd64 arm64 all\n")
	fmt.Fprintf(rfile, "Components: main\n")
	fmt.Fprintf(rfile, "Description: Tooling for RiscV, Semiconductor Designs & Private Clouds\n")

	/*
		fmt.Fprintf(rfile, "MD5SUM:\n")
		for i, filename := range allfiles {
			log.Info(i, filename)
			fileBytes, _ := os.ReadFile(filename)
			sum := fmt.Sprintf("%x", md5.Sum(fileBytes)) // deprecated
			newfile := strings.TrimPrefix(filename, "dists/sid/")
			fmt.Fprintf(rfile, " %s %d %s\n", sum, len(fileBytes), newfile)
		}
		fmt.Fprintf(rfile, "SHA1:\n")
		for i, filename := range allfiles {
			log.Info(i, filename)
			fileBytes, _ := os.ReadFile(filename)
			sum := fmt.Sprintf("%x", sha1.Sum(fileBytes))
			newfile := strings.TrimPrefix(filename, "dists/sid/")
			fmt.Fprintf(rfile, " %s %d %s\n", sum, len(fileBytes), newfile)
		}
	*/
	fmt.Fprintf(rfile, "SHA256:\n")
	for i, filename := range allfiles {
		log.Info(i, filename)
		fileBytes, _ := os.ReadFile(filename)
		sum := fmt.Sprintf("%x", sha256.Sum256(fileBytes))
		newfile := strings.TrimPrefix(filename, "dists/sid/")
		fmt.Fprintf(rfile, " %s %d %s\n", sum, len(fileBytes), newfile)
	}
	// fmt.Fprintf(rfile, "SHA1:\n")
	// fmt.Fprintf(rfile, "SHA256:\n")
	rfile.Close()

	// Sign the file
	log.Println("Signing with GPG key:", gpgKeyID)

	distPath := "/home/mirrors/wit/dists/sid"
	// Create InRelease
	cmdClearSign := exec.Command("gpg", "--default-key", gpgKeyID, "--clearsign", "-o", filepath.Join(distPath, "InRelease"), releasePath)
	if err := runCommand(cmdClearSign); err != nil {
		log.Printf("failed to create InRelease: %v\n", err)
	}

	// Create Release.gpg
	cmdDetachedSign := exec.Command("gpg", "--default-key", gpgKeyID, "-abs", "-o", filepath.Join(distPath, "Release.gpg"), releasePath)
	if err := runCommand(cmdDetachedSign); err != nil {
		log.Printf("failed to create Release.gpg: %v\n", err)
	}
	/*
		var sum string
		switch name {
		case "MD5Sum":
			sum = fmt.Sprintf("%x", md5.Sum(fileBytes))
		case "SHA1":
			sum = fmt.Sprintf("%x", sha1.Sum(fileBytes))
		case "SHA256":
			// FIX 3: Use the correct sha256.Sum256 function.
			sum = fmt.Sprintf("%x", sha256.Sum256(fileBytes))
	*/

	return "doNewest", nil
}