zephinzer/dev

package config

import (
    "io"
    "os"
    "sort"

    "github.com/zephinzer/dev/internal/prompt"
    "github.com/zephinzer/dev/pkg/utils/defaults"
)

// PromptSelectLoadedConfiguration does a cli prompt to ask the user
// to select a loaded configuration for changes to be made
func PromptSelectLoadedConfiguration(promptMessage string, useOtherReader ...io.Reader) (string, error) {
    loadedIndex := 0
    loadedConfigs := []string{}
    for configPath := range Loaded {
        loadedConfigs = append(loadedConfigs, configPath)
        loadedIndex++
    }
    // TODO: add case where there are no loaded configs
    if len(loadedConfigs) == 1 {
        return loadedConfigs[0], nil
    }
    sort.Strings(loadedConfigs)
    reader := defaults.GetIoReader(os.Stdin, useOtherReader...)
    indexToUse, promptToSelectErr := prompt.ToSelect(prompt.InputOptions{
        BeforeMessage:     promptMessage,
        SerializedOptions: loadedConfigs,
        Reader:            reader,
    })
    if promptToSelectErr != nil {
        return "", promptToSelectErr
    }
    if indexToUse == int(prompt.ErrorSkipped) {
        return "", nil
    }
    return loadedConfigs[indexToUse], nil
}