package main

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

func main() {
	store := NewStore()
	fmt.Println("taskcli — commands: add <title>, done <id>, list, quit")
	scanner := bufio.NewScanner(os.Stdin)
	for {
		fmt.Print("> ")
		if !scanner.Scan() {
			return
		}
		line := strings.TrimSpace(scanner.Text())
		if line == "" {
			continue
		}
		command, rest, _ := strings.Cut(line, " ")
		switch command {
		case "add":
			if rest == "" {
				fmt.Println("usage: add <title>")
				continue
			}
			task := store.Add(rest)
			fmt.Printf("added #%d %s\n", task.ID, task.Title)
		case "done":
			id, err := ParseID(rest)
			if err != nil {
				fmt.Println("error:", err)
				continue
			}
			if err := store.Complete(id); err != nil {
				fmt.Println("error:", err)
				continue
			}
			fmt.Printf("completed #%d\n", id)
		case "list":
			printList(store)
		case "quit":
			return
		default:
			fmt.Println("unknown command:", command)
		}
	}
}

func printList(store *Store) {
	widest := 0
	for _, task := range store.All() {
		if w := task.TitleWidth(); w > widest {
			widest = w
		}
	}
	for _, task := range store.All() {
		mark := " "
		if task.Done {
			mark = "x"
		}
		padding := strings.Repeat(" ", widest-task.TitleWidth())
		fmt.Printf("#%d %s%s [%s]\n", task.ID, task.Title, padding, mark)
	}
}