ads1_2021/code/golang/internal/menus/menus_prompt.go

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package menus
/* ---------------------------------------------------------------- *
* IMPORTS
* ---------------------------------------------------------------- */
import (
"fmt"
"strings"
"ads/internal/core/logging"
"ads/internal/core/utils"
)
/* ---------------------------------------------------------------- *
* METHOD prompt options
* ---------------------------------------------------------------- */
// Zeigt Prompt mit Liste von Optionen an
func promptListOfOptions(messages []string, options [][2]string, breaks []int, defaultChoice string) (string, bool) {
var n = len(options)
var (
choice string
cancel bool
err error
)
var lines []interface{}
var optionsMap = map[string]string{}
// Erzeuge Messages
lines = []interface{}{}
for _, message := range messages {
lines = append(lines, message)
}
lines = append(lines, "")
textbar := fmt.Sprintf(" \033[93m+%s+\033[0m", strings.Repeat("-", 40))
lines = append(lines, textbar)
for i, obj := range options {
key := obj[0]
label := obj[1]
optionsMap[key] = label
if key == defaultChoice {
lines = append(lines, fmt.Sprintf("\033[91m*\033[0m\033[93;1m%v)\033[0m %v", key, label))
} else {
lines = append(lines, fmt.Sprintf(" \033[93;1m%v)\033[0m %v", key, label))
}
if i < n-1 && utils.ArrayContains(breaks, i) {
lines = append(lines, " \033[93m+----\033[0m")
}
i++
}
lines = append(lines, textbar)
if !(defaultChoice == "") {
lines = append(lines, "")
lines = append(lines, " \033[91;2m*\033[0m\033[2m = Default\033[0m")
}
// Wiederhole Prompt, bis gültige Eingabe erreicht
for {
choice, cancel, err = logging.Prompt(lines...)
if cancel {
return "", true
}
if err != nil {
logging.ClearScreen()
logging.Error(err)
continue
}
if choice == "" {
choice = defaultChoice
break
}
if _, ok := optionsMap[choice]; !ok {
logging.ClearScreen()
logging.Error("Ungültige eingabe")
continue
}
break
}
return choice, false
}