package main import ( "fmt" "reflect" "strings" "github.com/charmbracelet/bubbles/key" "github.com/charmbracelet/lipgloss" ) func usage(keyMap KeyMap) string { title := lipgloss.NewStyle().Bold(true) pad := lipgloss.NewStyle().PaddingLeft(4) return fmt.Sprintf(` %v Terminal JSON viewer %v fx data.json fx data.json .field curl ... | fx %v -h, --help print help -v, --version print version --themes print themes -r, --raw treat input as a raw string -s, --slurp read all inputs into an array %v %v %v [https://fx.wtf] `, title.Render("fx "+version), title.Render("Usage"), title.Render("Flags"), title.Render("Key Bindings"), strings.Join(keyMapInfo(keyMap, pad), "\n"), title.Render("More info"), ) } func keyMapInfo(keyMap KeyMap, style lipgloss.Style) []string { v := reflect.ValueOf(keyMap) fields := reflect.VisibleFields(v.Type()) keys := make([]string, 0) for i := range fields { k := v.Field(i).Interface().(key.Binding) str := k.Help().Key if len(str) == 0 { str = strings.Join(k.Keys(), ", ") } keys = append(keys, fmt.Sprintf("%v ", str)) } desc := make([]string, 0) for i := range fields { k := v.Field(i).Interface().(key.Binding) desc = append(desc, fmt.Sprintf("%v", k.Help().Desc)) } content := lipgloss.JoinHorizontal( lipgloss.Top, strings.Join(keys, "\n"), strings.Join(desc, "\n"), ) return strings.Split(style.Render(content), "\n") }