package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"jsh"
	"log"
	"syscall"
)

// func get_fileinfo(f string) string {

// 	ret = ret + ", \"size\":" + strconv.FormatInt(stat.Size, 10)
// 	ret = ret + ", \"mode\":" + strconv.Itoa(int(stat.Mode))
// 	ret = ret + ", \"inode\":" + strconv.FormatUint(stat.Ino, 10)
// 	ret = ret + "}]}"
// 	return ret
// }

func listFiles(queue chan *jsh.JshFrame) {
	flag.Parse()
	root := "." //flag.Arg(0)
	dir, _ := ioutil.ReadDir(root)
	for _, entry := range dir {
		var stat syscall.Stat_t
		if err := syscall.Stat(entry.Name(), &stat); err != nil {
			log.Fatal(err)
		}
		if entry.Name()[0] != '.' {
			output := jsh.File{}
			output.Name = entry.Name()
			output.Size = int(stat.Size)
			output.Mode = int(stat.Mode)
			output.Inode = stat.Ino
			frame := jsh.JshFrame{output, ""}
			queue <- &frame
		}
	}
}

func runJsonMode() {
	queue := make(chan *jsh.JshFrame)
	done := make(chan bool)
	go jsh.OutputFrames(queue, done)
	listFiles(queue)
	close(queue)
	<-done
}

func main() {
	// TODO: Support more flags
	jsonModePtr := flag.Bool("json", false, "whether to use json mode for input and output")
	flag.Parse()

	if !*jsonModePtr {
		fmt.Printf("%s", jsh.FallbackWithArgs("ls", flag.Args()))
	} else {
		runJsonMode()
	}
}