/*
Copyright © 2021 NAME HERE <EMAIL ADDRESS>

*/
package cmd

import (
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"strconv"

	"github.com/spf13/cobra"
)

// noteCmd represents the note command
var noteCmd = &cobra.Command{
	Use:   "note",
	Args:  cobra.ExactArgs(1),
	Short: "Add a note to the specified diary entry",
	Long: `Will open your $EDITOR (or nano, if no editor is defined)

	To define a default editor, set the EDITOR environment variable.
	Notes can be written in markdown.
	For example:
	    export EDITOR="vim"
	`,
	PreRunE: func(cmd *cobra.Command, args []string) error {
		id, err := strconv.Atoi(args[0])
		if err != nil {
			return err
		}
		_, err = App.GetDiaryEntry(int64(id))
		if err != nil {
			return err
		}
		return nil
	},
	Run: func(cmd *cobra.Command, args []string) {
		entry_id, err := strconv.Atoi(args[0])
		if err != nil {
			log.Fatal(err)
		}

		temp_file, err := ioutil.TempFile(os.TempDir(), "diary_note.*.md")
		if err != nil {
			log.Fatal(err)
		}
		defer os.Remove(temp_file.Name())

		var editor = os.Getenv("EDITOR")
		if editor == "" {
			editor = "nano"
		}
		editor_cmd := exec.Command(editor, temp_file.Name())
		editor_cmd.Stdin = os.Stdin
		editor_cmd.Stdout = os.Stdout
		editor_cmd.Stderr = os.Stderr

		err = editor_cmd.Start()
		if err != nil {
			log.Fatal(err)
		}
		err = editor_cmd.Wait()
		if err != nil {
			log.Fatal(err)
		}

		content, err := ioutil.ReadFile(temp_file.Name())
		if err != nil {
			log.Fatal(err)
		}
		App.NewDiaryEntryNote(int64(entry_id), string(content))
	},
}

func init() {
	addCmd.AddCommand(noteCmd)

	// Here you will define your flags and configuration settings.

	// Cobra supports Persistent Flags which will work for this command
	// and all subcommands, e.g.:
	// noteCmd.PersistentFlags().String("foo", "", "A help for foo")

	// Cobra supports local flags which will only run when this command
	// is called directly, e.g.:
	// noteCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}