package main

import (
	"bytes"
	"flag"
	"io"
	"io/ioutil"
	"local/pt-todo-server/pttodo"
	"log"
	"os"

	"gopkg.in/yaml.v2"
)

func main() {
	if err := _main(); err != nil {
		panic(err)
	}
}

func _main() error {
	filepath := flag.String("f", "-", "path to yaml file")
	flag.Parse()

	var reader io.Reader
	if *filepath == "-" {
		reader = os.Stdin
	} else {
		b, err := ioutil.ReadFile(*filepath)
		if err != nil {
			return err
		}
		reader = bytes.NewReader(b)
	}

	b, err := ioutil.ReadAll(reader)
	if err != nil {
		return err
	}

	var root pttodo.Root
	if err := yaml.Unmarshal(b, &root); err != nil {
		return err
	}

	b2, err := yaml.Marshal(root)
	if err != nil {
		return err
	}
	log.Printf("%s", b2)
	return nil
}