103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
package menus
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/* ---------------------------------------------------------------- *
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* IMPORTS
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* ---------------------------------------------------------------- */
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import (
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"fmt"
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"strconv"
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"strings"
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"ads/internal/core/logging"
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)
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/* ---------------------------------------------------------------- *
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* METHOD show menu
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* ---------------------------------------------------------------- */
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func (menu Menu) ShowMenu() (bool, error) {
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var (
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choice string
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index int
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meta bool
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quit bool
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)
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var promptMessages []string
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var options [][2]string
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var defaultOption string
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var breaks []int
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// Headline einfügen
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promptMessages = make([]string, len(menu.PromptMessages))
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copy(promptMessages, menu.PromptMessages)
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head := fmt.Sprintf("\033[2m%s\033[0m", strings.Join(menu.Path, " > "))
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promptMessages = append([]string{head}, promptMessages...)
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// Zurück-Option einfügen
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defaultOption = fmt.Sprintf("%v", menu.DefaultOption)
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options = []([2]string){}
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for i, opt := range menu.Options {
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key := fmt.Sprintf("%v", i+1)
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subLabel := opt.SubLabel
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label := opt.Label
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if !(subLabel == "") {
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label = fmt.Sprintf("%v (\033[2m%v\033[0m)", opt.Label, subLabel)
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}
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options = append(options, [2]string{key, label})
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}
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breaks = []int{len(menu.Options) - 1}
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if !menu.IsRoot {
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options = append(options, [2]string{"z", "Zurück zum vorherigen Menü"})
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}
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options = append(options, [2]string{"q", "Programm schließen"})
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// User Response immer abfragen und abarbeiten, bis quit/return.
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performClearScreen := !menu.IsRoot
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for {
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if performClearScreen {
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logging.ClearScreen()
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}
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performClearScreen = true
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choice, meta = PromptListOfOptions(promptMessages, options, breaks, defaultOption)
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// Falls quit wählt, -> quit:
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if (menu.IsRoot && meta) || choice == "q" {
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return true, nil
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}
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// Falls User back wählt, -> return:
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if (!menu.IsRoot && meta) || choice == "z" {
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return false, nil
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}
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// sonst führe die assoziierte Methode aus
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index64, _ := strconv.ParseInt(choice, 10, 64)
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index = int(index64) - 1
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if 0 <= index && index < len(menu.Options) {
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opt := menu.Options[index]
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// Entweder Untermenü öffnen oder Action ausführen
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if opt.Submenu != nil {
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quit, _ = opt.Submenu.ShowMenu()
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if quit {
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return true, nil
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}
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} else if opt.Action != nil {
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opt.Action()
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quit := logging.PromptAnyKeyToContinue()
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// Falls während der Action der User Meta+D klickt, -> quit:
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if quit {
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return true, nil
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}
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} else {
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logging.LogWarn("Option noch nicht implementiert.")
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quit := logging.PromptAnyKeyToContinue()
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if quit {
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return true, nil
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}
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}
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}
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}
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}
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