got month grid going

main.go

@@ -1,73 +1,86 @@
-// main.go
 package main
 
-// A simple program demonstrating the spinner component from the Bubbles
-// component library.
-
 import (
 	"fmt"
-	"github.com/charmbracelet/bubbles/spinner"
+	"os"
+
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/lipgloss"
-	"os"
 )
 
-type errMsg error
+const (
+	numRows = 5
+	numCols = 7
+	cellW   = 10
+	cellH   = 1
+)
+
+var (
+	cellStyle      = lipgloss.NewStyle().Width(cellW).Height(cellH).Align(lipgloss.Center)
+	selectedStyle  = cellStyle.Copy().Bold(true).Background(lipgloss.Color("12")).Foreground(lipgloss.Color("15"))
+	unselectedStyle = cellStyle.Copy().Background(lipgloss.Color("236")).Foreground(lipgloss.Color("250"))
+)
 
 type model struct {
-	spinner  spinner.Model
-	quitting bool
-	err      error
-}
-
-func initialModel() model {
-	s := spinner.New()
-	s.Spinner = spinner.Dot
-	s.Style = lipgloss.NewStyle().Foreground(lipgloss.Color("205"))
-	return model{spinner: s}
+	cursorRow int
+	cursorCol int
 }
 
 func (m model) Init() tea.Cmd {
-	return m.spinner.Tick
+	return nil
 }
 
 func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	switch msg := msg.(type) {
 	case tea.KeyMsg:
 		switch msg.String() {
-		case "q", "esc", "ctrl+c":
-			m.quitting = true
+		case "ctrl+c", "q":
 			return m, tea.Quit
-		default:
-			return m, nil
+		case "up":
+			if m.cursorRow > 0 {
+				m.cursorRow--
+			}
+		case "down":
+			if m.cursorRow < numRows-1 {
+				m.cursorRow++
+			}
+		case "left":
+			if m.cursorCol > 0 {
+				m.cursorCol--
+			}
+		case "right":
+			if m.cursorCol < numCols-1 {
+				m.cursorCol++
+			}
 		}
-
-	case errMsg:
-		m.err = msg
-		return m, nil
-
-	default:
-		var cmd tea.Cmd
-		m.spinner, cmd = m.spinner.Update(msg)
-		return m, cmd
 	}
+	return m, nil
 }
 
 func (m model) View() string {
-	if m.err != nil {
-		return m.err.Error()
+	var out string
+	count := 1
+	for r := 0; r < numRows; r++ {
+		for c := 0; c < numCols; c++ {
+			label := fmt.Sprintf("Cell %02d", count)
+			if r == m.cursorRow && c == m.cursorCol {
+				out += selectedStyle.Render(label)
+			} else {
+				out += unselectedStyle.Render(label)
+			}
+			count++
+		}
+		out += "\n"
 	}
-	str := fmt.Sprintf("\n\n   %s Loading forever...press q to quit\n\n", m.spinner.View())
-	if m.quitting {
-		return str + "\n"
-	}
-	return str
+	out += "\nUse arrow keys to move, q to quit."
+	return out
 }
 
 func main() {
-	p := tea.NewProgram(initialModel())
-	if _, err := p.Run(); err != nil {
-		fmt.Println(err)
+	p := tea.NewProgram(model{})
+	if err := p.Start(); err != nil {
+		fmt.Fprintf(os.Stderr, "error: %v", err)
 		os.Exit(1)
 	}
 }
+