package main

import (
	"flag"
	"fmt"
	"log"
	"os"

	_ "github.com/codingsince1985/checksum"
)

func main() {
	var source_dir = flag.String("s", "", "Path to image folder (/srv/fwuploads-tmp/)")
	var target_dir = flag.String("t", "", "Path to image folder in public (/srv/fwuploads/troisdorf)")
	var branch = flag.String("b", "", "Branch to work with")
	var version = flag.String("v", "", "which version should be released")
	var dryrun = flag.Bool("d", false, "Dryrun, just show changes on filesystem")

	flag.Parse()
	sdir := *source_dir
	tdir := *target_dir
	br := *branch

	var source_dir_branch string = sdir + br + "/images/"
	var target_dir_branch string = tdir + br + "/images/"

	if is_firmware_folder(source_dir_branch) {
		//generate manifest file for branch
		if !(*dryrun) {
			err := generate_manifest(source_dir_branch)
			if err != nil {
				log.Println("Error generating Manifest file: ", err)
			}
		}
		release_branch(*branch, source_dir_branch, target_dir_branch, *dryrun, *version)
	}
}

func is_firmware_folder(s string) bool {

	// check files in source_folder
	files, err := os.ReadDir(s)
	if err != nil {
		fmt.Println("Fehler beim Lesen des Verzeichnisses:", err)
		return false
	}

	sysupgradeCount := 0
	factoryCount := 0
	otherCount := 0

	// look for folders
	for _, file := range files {
		if file.IsDir() {
			// check name
			switch file.Name() {
			case "sysupgrade":
				sysupgradeCount++
			case "factory":
				factoryCount++
			case "other":
				otherCount++
			}
		}
	}

	// if there only the 3 folders then continue
	if sysupgradeCount == 1 && factoryCount == 1 && otherCount == 1 {
		log.Println("this looks like a gluon folder! Go on!")
		return true
	} else {
		log.Println("the source folder does not look like a gluon firmware output.")
		return false
	}
}