first commit

cli/internal/ui/tui/confirm.go

@@ -0,0 +1,134 @@
+package tui
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// confirmModel holds information about current model selection
+type confirmModel struct {
+	header     string
+	prompt     string
+	command    string
+	idx        int
+	quit       bool
+	yes        bool
+	clearFirst bool
+}
+
+// runConfirm runs a confirm dialog with the given model and returns the user's
+// choice.
+func runConfirm(m confirmModel) (bool, error) {
+	p := tea.NewProgram(
+		m,
+		tea.WithInput(os.Stdin),
+		tea.WithOutput(os.Stdout),
+		tea.WithInputTTY(),
+	)
+	out, err := p.Run()
+	if err != nil {
+		return false, err
+	}
+	fm, ok := out.(confirmModel)
+	if !ok {
+		return false, fmt.Errorf("unexpected model type from tui")
+	}
+	if fm.quit {
+		return false, nil
+	}
+	return fm.yes, nil
+}
+
+// RunConfirmInstall displays a yes/no confirmation dialog asking the user
+// whether to install a missing harness. Returns true if the user confirms.
+func RunConfirmInstall(header, harnessLabel, command string) (bool, error) {
+	return runConfirm(confirmModel{
+		header:  header,
+		prompt:  fmt.Sprintf("%s is not installed. Install now?", harnessLabel),
+		command: command,
+	})
+}
+
+// RunConfirmSettings displays a yes/no confirmation dialog asking the user
+// whether to update the harness's native settings file. Returns true if the
+// user confirms.
+func RunConfirmSettings(harnessLabel, settingsPath string) (bool, error) {
+	return runConfirm(confirmModel{
+		prompt:     fmt.Sprintf("Update %s settings? (%s)", harnessLabel, settingsPath),
+		clearFirst: true,
+	})
+}
+
+// Init implements tea.Model.
+func (m confirmModel) Init() tea.Cmd {
+	if m.clearFirst {
+		return tea.ClearScreen
+	}
+	return nil
+}
+
+// Update implements tea.Model. Handles y/n, arrow keys, and enter for confirmation.
+func (m confirmModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		s := msg.String()
+		switch s {
+		case "ctrl+c", "q", "esc":
+			m.quit = true
+			return m, tea.Quit
+		case "left", "h", "right", "l", "tab":
+			if m.idx == 0 {
+				m.idx = 1
+			} else {
+				m.idx = 0
+			}
+			return m, nil
+		case "y":
+			m.yes = true
+			return m, tea.Quit
+		case "n":
+			m.yes = false
+			return m, tea.Quit
+		case "enter":
+			m.yes = m.idx == 0
+			return m, tea.Quit
+		}
+	}
+	return m, nil
+}
+
+// View implements tea.Model. Renders the confirmation prompt with Yes/No buttons.
+func (m confirmModel) View() string {
+	selected := lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("42"))
+	normal := lipgloss.NewStyle().Foreground(lipgloss.Color("245"))
+
+	yes := normal.Render("[ Yes ]")
+	no := normal.Render("[ No ]")
+	if m.idx == 0 {
+		yes = selected.Render("[ Yes ]")
+	} else {
+		no = selected.Render("[ No ]")
+	}
+
+	var b strings.Builder
+	if m.header != "" {
+		b.WriteString(m.header)
+		b.WriteString("\n")
+	}
+	b.WriteString(m.prompt)
+	b.WriteString("\n")
+	if m.command != "" {
+		b.WriteString("command: ")
+		b.WriteString(m.command)
+		b.WriteString("\n")
+	}
+	b.WriteString("\n")
+	b.WriteString(yes + "  " + no)
+	b.WriteString("\n")
+	b.WriteString("enter: confirm, y/n quick choice, q: cancel")
+	return b.String()
+}