refactor to make cli better and simplify the code

cmd/pm/intro.go

@@ -0,0 +1,158 @@
+package main
+
+import (
+	"strings"
+
+	"github.com/LazyBachelor/LazyPM/internal/models"
+	"github.com/LazyBachelor/LazyPM/internal/style"
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+const stages = 2
+
+const (
+	IntroTitle = "✦ Project Management Interface Survey ✦"
+
+	IntroductionText = `Welcome! This survey gathers feedback on task management interfaces.
+
+Your responses will help us improve our services. All data is anonymized
+and used solely for research purposes.
+
+By participating, you consent to data collection as described below.`
+
+	Disclaimer = `📋 Data Collection Notice
+
+• All responses are completely anonymized
+• Data is used for research purposes only
+• No personally identifiable information is collected
+• You may exit at any time by pressing Esc
+• We get no data unless you complete the survey and submit.`
+)
+
+type keyMap struct {
+	Start    key.Binding
+	Continue key.Binding
+	Back     key.Binding
+	Quit     key.Binding
+}
+
+var keys = keyMap{
+	Start: key.NewBinding(
+		key.WithKeys("enter"),
+		key.WithHelp("enter", "start survey"),
+	),
+	Continue: key.NewBinding(
+		key.WithKeys(" ", "j", "l", "down", "right"),
+		key.WithHelp("space", "continue"),
+	),
+	Back: key.NewBinding(
+		key.WithKeys("b", "k", "h", "backspace", "up", "left"),
+		key.WithHelp("b", "back"),
+	),
+	Quit: key.NewBinding(
+		key.WithKeys("esc", "ctrl+c", "q"),
+		key.WithHelp("esc", "quit"),
+	),
+}
+
+type introModel struct {
+	stage         int
+	width, height int
+	userQuit      bool
+}
+
+func newIntroModel() introModel {
+	return introModel{
+		stage: 1,
+	}
+}
+
+func (m introModel) Run() error {
+	model, err := tea.NewProgram(m, tea.WithAltScreen()).Run()
+	if err != nil {
+		return err
+	}
+	if m, ok := model.(introModel); ok && m.userQuit {
+		return models.ErrUserQuit
+	}
+	return nil
+}
+
+func (m introModel) Init() tea.Cmd {
+	return nil
+}
+
+func (m introModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.SetSize(msg.Width, msg.Height)
+	case tea.KeyMsg:
+		switch {
+		case key.Matches(msg, keys.Start) && m.stage == stages:
+			return m, tea.Quit
+		case key.Matches(msg, keys.Continue):
+			if m.stage < stages {
+				m.stage++
+			}
+		case key.Matches(msg, keys.Back):
+			if m.stage > 1 {
+				m.stage--
+			}
+			return m, nil
+		case key.Matches(msg, keys.Quit):
+			m.userQuit = true
+			return m, tea.Quit
+		}
+	}
+
+	return m, nil
+}
+
+func (m introModel) View() string {
+	if m.width < 55 || m.height < 16 {
+		return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center,
+			style.TextStyle.Render("Terminal too small."))
+	}
+
+	var content string
+	switch m.stage {
+	case 1:
+		content = IntroductionText
+	case 2:
+		content = Disclaimer
+	default:
+		return ""
+	}
+
+	boxWidth := min(m.width-10, 80)
+
+	boxStyle := style.BorderStyle.
+		Margin(1, 0).Padding(2, 4).Width(boxWidth)
+
+	var b strings.Builder
+
+	b.WriteString(style.TitleStyle.Render(IntroTitle))
+	b.WriteString("\n")
+
+	b.WriteString(boxStyle.Render(style.TextStyle.Render(content)))
+	b.WriteString("\n")
+
+	helpText := "Press " + keys.Continue.Help().Key + " to continue • " +
+		keys.Back.Help().Key + " to go back • " + keys.Quit.Help().Key + " to quit"
+
+	if m.stage == stages {
+		helpText += "\nPress " + keys.Start.Help().Key + " to start the survey"
+	}
+
+	b.WriteString(style.HelpStyle.Render(helpText))
+
+	final := lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, b.String())
+
+	return final
+}
+
+func (m *introModel) SetSize(width, height int) {
+	m.width, m.height = width, height
+}