Initial commit. First pass.

example/main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"fmt"
+	"tea"
+)
+
+type Model int
+
+func main() {
+	p := tea.NewProgram(0, update, view)
+	p.Start()
+}
+
+func update(msg tea.Msg, model tea.Model) (tea.Model, tea.Cmd) {
+	m, _ := model.(Model)
+
+	switch msg := msg.(type) {
+	case tea.KeyPressMsg:
+		switch msg {
+
+		case "j":
+			m += 1
+			if m > 3 {
+				m = 3
+			}
+
+		case "k":
+			m -= 1
+			if m < 0 {
+				m = 0
+			}
+
+		case "q":
+			return m, tea.Quit
+
+		}
+	}
+
+	return m, nil
+}
+
+func view(model tea.Model) string {
+	m, _ := model.(Model)
+
+	choices := fmt.Sprintf(
+		"%s\n%s\n%s\n%s",
+		checkbox("Plant carrots", m == 0),
+		checkbox("Go to the market", m == 1),
+		checkbox("Read something", m == 2),
+		checkbox("See friends", m == 3),
+	)
+
+	return fmt.Sprintf(
+		"What to do today?\n\n%s.\n\n(press j/k to select or q to quit)",
+		choices,
+	)
+}
+
+func checkbox(label string, checked bool) string {
+	check := " "
+	if checked {
+		check = "x"
+	}
+	return fmt.Sprintf("[%s] %s", check, label)
+}