go-todo/main.go

package main

import (
	"bufio"
	"fmt"
	"os"
)

func PrintMenu() {
	fmt.Printf("### TODO APP ###\n")
	fmt.Printf("1: List Todo\n")
	fmt.Printf("2: Add Todo\n")
	fmt.Printf("3: Remove Todo (via index)\n")

	fmt.Printf("\n\n0: List menu again\n")
	fmt.Printf("4: Quit\n\n> ")

}

func main() {
	fmt.Print("\033[H\033[2J") //clear
	PrintMenu()
	list := Todos{}
	for {
		var input int
		n, err := fmt.Scanln(&input)
		if n < 1 || err != nil {
			fmt.Print("[ERR] Invalid input\n")
		}

		switch input {
		case 0:
			PrintMenu()
		case 1:
			list.ListTodo()
			PrintMenu()
		case 2:
			in := bufio.NewReader(os.Stdin)

			fmt.Print("Add Title:\n> ")
			title, _ := in.ReadString('\n')

			fmt.Print("Add Content:\n> ")
			content, _ := in.ReadString('\n')

			list.AddTodo(Todo{Title: title, Content: content})
			fmt.Printf("Added %s to the list!\n", title)
			PrintMenu()
		case 3:
			var index int
			fmt.Printf("Which TODO to remove?\n> ")

			if _, err := fmt.Scanf("%d", &index); err != nil {
				fmt.Printf("Invalid input\n> ")
			}

			if err := list.RemoveTodo(index); err != nil {
				fmt.Print(err)
			}
			PrintMenu()
		case 4:
			fmt.Print("Quitting, goodbye!\n")
			os.Exit(0)
		default:
			PrintMenu()
		}
	}

	/*
		list := Todos{}
		//todos := []Todo{}
		//list := Todos{todos}
		fmt.Println("Empty list: ")
		list.ListTodo()

		fmt.Println("Adding entries...")
		items := []Todo{
			{
				Title:   "test",
				Content: "Here is some content",
			},
			{
				Title:   "test1",
				Content: "Here is some more content",
			},
			{
				Title:   "test2",
				Content: "Here is even MORE content",
			},
		}

		//Add the items for testing
		for item := range items {
			list.AddTodo(items[item])
		}

		fmt.Println("Listing...")
		list.ListTodo()
		fmt.Println("Listing again...")
		list.ListTodo()

		fmt.Println("Removing item2 via index 1")
		list.RemoveTodo(1)
		fmt.Println("Listing again...")
		list.ListTodo()
	*/
}