package main

import (
	"fmt"
	"os"

	tea "github.com/charmbracelet/bubbletea"
)

type model int

func (m model) Init() tea.Cmd {
	return nil
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "ctrl+c", "q":
			return m, tea.Quit
		case "+":
			return m + 1, nil
		case "-":
			return m - 1, nil
		}
	}
	return m, nil
}

func (m model) View() string {
	return fmt.Sprintf("Count: %d\nPress + to increment, - to decrement, q to quit.\n", m)
}

func main() {
	p := tea.NewProgram(model(0), tea.WithAltScreen())
	if err := p.Start(); err != nil {
		fmt.Fprintf(os.Stderr, "Error running program: %v\n", err)
		os.Exit(1)
	}
}