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package main
import (
"strings"
"time"
"github.com/charmbracelet/bubbles/progress"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
var helpStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#626262")).Render
const (
padding = 2
maxWidth = 80
)
type progressMsg float64
type progressErrMsg struct{ err error }
func finalPause() tea.Cmd {
return tea.Tick(time.Millisecond*750, func(_ time.Time) tea.Msg {
return nil
})
}
type model struct {
pw *progressWriter
progress progress.Model
err error
}
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:
return m, tea.Quit
case tea.WindowSizeMsg:
m.progress.Width = msg.Width - padding*2 - 4
if m.progress.Width > maxWidth {
m.progress.Width = maxWidth
}
return m, nil
case progressErrMsg:
m.err = msg.err
return m, tea.Quit
case progressMsg:
var cmds []tea.Cmd
if msg >= 1.0 {
cmds = append(cmds, tea.Sequence(finalPause(), tea.Quit))
}
cmds = append(cmds, m.progress.SetPercent(float64(msg)))
return m, tea.Batch(cmds...)
// FrameMsg is sent when the progress bar wants to animate itself
case progress.FrameMsg:
progressModel, cmd := m.progress.Update(msg)
m.progress = progressModel.(progress.Model)
return m, cmd
default:
return m, nil
}
}
func (m model) View() string {
if m.err != nil {
return "Error downloading: " + m.err.Error() + "\n"
}
pad := strings.Repeat(" ", padding)
return "\n" +
pad + m.progress.View() + "\n\n" +
pad + helpStyle("Press any key to quit")
}
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