feat: getting starting with a tui

internal/tui/main.go

@@ -0,0 +1,59 @@
+package tui
+
+import (
+	tea "github.com/charmbracelet/bubbletea/v2"
+)
+
+type page int
+
+const (
+	pageList = iota + 1
+)
+
+type mainModel struct {
+	page       page
+	listPage   listModel
+	isQuitting bool
+}
+
+func newMainModel() mainModel {
+	return mainModel{
+		page:     pageList,
+		listPage: newListModel(),
+	}
+}
+
+func (m mainModel) Init() tea.Cmd {
+	return m.listPage.Init()
+}
+
+func (m mainModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "ctrl+c", "ctrl+q":
+			m.isQuitting = true
+			return m, tea.Quit
+		}
+	}
+
+	switch m.page {
+	case pageList:
+		model, cmd := m.listPage.Update(msg)
+		m.listPage = model.(listModel)
+		return m, cmd
+	}
+
+	return m, nil
+}
+
+func (m mainModel) View() string {
+	switch {
+	case m.isQuitting:
+		return "Quitting..."
+	case m.page == pageList:
+		return m.listPage.View()
+	default:
+		return "..."
+	}
+}