Initial commit.

internal/tui/groups.go

@@ -0,0 +1,232 @@
+// Package tui provides the group management component.
+package tui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+// GroupMode represents the group view mode.
+type GroupMode int
+
+const (
+	GroupModeSelect GroupMode = iota
+	GroupModeAdd
+	GroupModeRename
+	GroupModeConfirmDelete
+)
+
+// GroupPicker handles the group selection and management UI.
+type GroupPicker struct {
+	groups   []string
+	cursor   int
+	width    int
+	height   int
+	mode     GroupMode
+	input    textinput.Model
+	editName string // Original name when renaming
+}
+
+// NewGroupPicker creates a new group picker.
+func NewGroupPicker() *GroupPicker {
+	input := textinput.New()
+	input.Placeholder = "group-name"
+	input.CharLimit = 63
+
+	return &GroupPicker{
+		input: input,
+		mode:  GroupModeSelect,
+	}
+}
+
+// SetGroups updates the available groups.
+func (g *GroupPicker) SetGroups(groups []string) {
+	g.groups = groups
+	if g.cursor >= len(groups) {
+		g.cursor = max(0, len(groups)-1)
+	}
+}
+
+// SetSize sets the picker dimensions.
+func (g *GroupPicker) SetSize(width, height int) {
+	g.width = width
+	g.height = height
+	g.input.Width = min(50, width-10)
+}
+
+// MoveUp moves the cursor up.
+func (g *GroupPicker) MoveUp() {
+	if g.cursor > 0 {
+		g.cursor--
+	}
+}
+
+// MoveDown moves the cursor down.
+func (g *GroupPicker) MoveDown() {
+	if g.cursor < len(g.groups)-1 {
+		g.cursor++
+	}
+}
+
+// Selected returns the currently selected group.
+func (g *GroupPicker) Selected() string {
+	if g.cursor >= 0 && g.cursor < len(g.groups) {
+		return g.groups[g.cursor]
+	}
+	return ""
+}
+
+// Len returns the number of groups.
+func (g *GroupPicker) Len() int {
+	return len(g.groups)
+}
+
+// Mode returns the current mode.
+func (g *GroupPicker) Mode() GroupMode {
+	return g.mode
+}
+
+// InitAdd initializes the form for adding a new group.
+func (g *GroupPicker) InitAdd() {
+	g.mode = GroupModeAdd
+	g.editName = ""
+	g.input.Reset()
+	g.input.Focus()
+}
+
+// InitRename initializes the form for renaming an existing group.
+func (g *GroupPicker) InitRename() {
+	selected := g.Selected()
+	if selected == "" {
+		return
+	}
+
+	g.mode = GroupModeRename
+	g.editName = selected
+	g.input.SetValue(selected)
+	g.input.Focus()
+}
+
+// InitDelete starts delete confirmation.
+func (g *GroupPicker) InitDelete() {
+	if g.Selected() == "" {
+		return
+	}
+	g.mode = GroupModeConfirmDelete
+}
+
+// CancelForm cancels the current form operation.
+func (g *GroupPicker) CancelForm() {
+	g.mode = GroupModeSelect
+	g.editName = ""
+	g.input.Reset()
+	g.input.Blur()
+}
+
+// Update handles input events for form mode.
+func (g *GroupPicker) Update(msg tea.KeyMsg) tea.Cmd {
+	var cmd tea.Cmd
+	g.input, cmd = g.input.Update(msg)
+	return cmd
+}
+
+// FormValue returns the form input value.
+func (g *GroupPicker) FormValue() string {
+	return strings.TrimSpace(g.input.Value())
+}
+
+// EditName returns the original name when renaming.
+func (g *GroupPicker) EditName() string {
+	return g.editName
+}
+
+// IsRename returns true if in rename mode.
+func (g *GroupPicker) IsRename() bool {
+	return g.mode == GroupModeRename
+}
+
+// ValidateForm validates the form value.
+func (g *GroupPicker) ValidateForm() string {
+	value := g.FormValue()
+	if value == "" {
+		return "Group name is required"
+	}
+	return ""
+}
+
+// View renders the group picker.
+func (g *GroupPicker) View() string {
+	switch g.mode {
+	case GroupModeAdd, GroupModeRename:
+		return g.formView()
+	case GroupModeConfirmDelete:
+		return g.deleteView()
+	default:
+		return g.selectView()
+	}
+}
+
+func (g *GroupPicker) selectView() string {
+	var sb strings.Builder
+
+	sb.WriteString(titleStyle.Render("Groups"))
+	sb.WriteString("\n\n")
+
+	if len(g.groups) == 0 {
+		sb.WriteString(helpDescStyle.Render("No groups configured."))
+		sb.WriteString("\n\n")
+		sb.WriteString(helpDescStyle.Render("Press 'n' to create one"))
+	} else {
+		for i, group := range g.groups {
+			if i == g.cursor {
+				sb.WriteString(presetSelectedStyle.Render("▸ " + group))
+			} else {
+				sb.WriteString(presetItemStyle.Render("  " + group))
+			}
+			sb.WriteString("\n")
+		}
+	}
+
+	sb.WriteString("\n\n")
+	sb.WriteString(helpDescStyle.Render("↑↓ navigate • n new • r rename • d delete • Esc back"))
+
+	return dialogStyle.Render(sb.String())
+}
+
+func (g *GroupPicker) formView() string {
+	var sb strings.Builder
+
+	title := "Add New Group"
+	if g.mode == GroupModeRename {
+		title = "Rename Group"
+	}
+
+	sb.WriteString(titleStyle.Render(title))
+	sb.WriteString("\n\n")
+
+	sb.WriteString(inputLabelStyle.Render("Name:"))
+	sb.WriteString("\n")
+	sb.WriteString(inputFocusStyle.Render(g.input.View()))
+	sb.WriteString("\n\n")
+	sb.WriteString(helpDescStyle.Render("Enter save • Esc cancel"))
+
+	return dialogStyle.Render(sb.String())
+}
+
+func (g *GroupPicker) deleteView() string {
+	var sb strings.Builder
+
+	groupName := g.Selected()
+
+	sb.WriteString(titleStyle.Render("Delete Group"))
+	sb.WriteString("\n\n")
+	sb.WriteString(errorMsgStyle.Render("Are you sure you want to delete group '" + groupName + "'?"))
+	sb.WriteString("\n")
+	sb.WriteString(helpDescStyle.Render("This will remove all hosts in this group!"))
+	sb.WriteString("\n\n")
+	sb.WriteString(helpDescStyle.Render("y confirm • n/Esc cancel"))
+
+	return dialogStyle.Render(sb.String())
+}