package main

import (
	"io/ioutil"
	"os"

	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
	"gopkg.in/yaml.v2"
)

func add(config config) error {
	if config.add == "" {
		return nil
	}
	v := pttodo.Todo{
		Todo:     config.add,
		Schedule: pttodo.Schedule(config.addSchedule),
		Tags:     config.addTags,
	}
	return _add(config.targets, v)
}

func _add(filepaths []string, todo pttodo.Todo) error {
	target := filepaths[0]
	var original pttodo.Root

	r, err := filePathReader(target)
	if err != nil {
		return err
	}
	if err := yaml.NewDecoder(r).Decode(&original); err != nil {
		return err
	}

	original.Todo = append([]pttodo.Todo{todo}, original.Todo...)
	original.AutoMove()

	c, err := yaml.Marshal(original)
	if err != nil {
		return err
	} else if err := ioutil.WriteFile(target, c, os.ModePerm); err != nil {
		return err
	}

	return nil
}