package helpers

import (
	"bufio"
	"os"
	"regexp"
	"strings"

	"git.home.m-and-m.ovh/mderasse/gouick/models"

	log "github.com/sirupsen/logrus"
)

// YesOrNoInput ask user for a yes or no reply and try until we get a possible answer.
func YesOrNoInput() bool {

	scanner := bufio.NewScanner(os.Stdin)
	for {
		scanner.Scan()
		userInput := scanner.Text()

		lUserInput := strings.ToLower(userInput)

		for _, positiveAnswer := range []string{"yes", "y", "1", "true"} {
			if lUserInput == positiveAnswer {
				return true
			}
		}
		for _, negativeAnswer := range []string{"no", "n", "0", "false"} {
			if lUserInput == negativeAnswer {
				return false
			}
		}

		log.Info("Expecting a yes or no answer, Try again")
	}
}

// AlphanumericalInput ask user for a alphanumerical string and try until we get a possible answer.
func AlphanumericalInput() string {

	scanner := bufio.NewScanner(os.Stdin)
	for {

		scanner.Scan()
		userInput := scanner.Text()

		if userInput == "" {
			log.Warn("Empty input, try again")
			continue
		}

		is_alphanumeric := regexp.MustCompile(`^[a-zA-Z0-9\-\_]*$`).MatchString(userInput)

		if !is_alphanumeric {
			log.Warn("Please use a-z, A-Z, 0-9 and - or _ characters only.")
			continue
		}

		return userInput
	}
}

// AlphanumericalAndSpaceInput ask user for a alphanumerical+space string and try until we get a possible answer.
func AlphanumericalAndSpaceInput() string {

	scanner := bufio.NewScanner(os.Stdin)
	for {

		scanner.Scan()
		userInput := scanner.Text()

		if userInput == "" {
			log.Warn("Empty input, try again")
			continue
		}

		is_alphanumeric := regexp.MustCompile(`^[a-zA-Z0-9\-\_\s]*$`).MatchString(userInput)

		if !is_alphanumeric {
			log.Warn("Please use a-z, A-Z, 0-9, - , space or _ characters only.")
			continue
		}

		return userInput
	}
}

// StringInput ask user for a string and try until we get a possible answer.
func StringInput() string {

	scanner := bufio.NewScanner(os.Stdin)
	for {

		scanner.Scan()
		userInput := scanner.Text()

		if userInput == "" {
			log.Warn("Empty input, try again")
			continue
		}

		return userInput
	}
}

// PathInput ask user for a path string and try until we get a possible answer.
func PathInput() string {

	scanner := bufio.NewScanner(os.Stdin)
	for {

		scanner.Scan()
		userInput := scanner.Text()

		if userInput == "" {
			log.Warn("Empty input, try again")
			continue
		}

		_, err := CheckAndCreateDir(userInput)
		if err != nil {
			log.Warnf("please, try again")
			continue
		}

		return userInput
	}
}

// APITypeNameInput ask user for a string that is a valid API Type name and try until we get a possible answer.
func APITypeNameInput() models.APITypeName {

	possibleAPITypes := make([]string, 0)
	for _, apiType := range models.GetListOfAPITypeName() {
		possibleAPITypes = append(possibleAPITypes, string(apiType))
	}

	scanner := bufio.NewScanner(os.Stdin)
	for {

		scanner.Scan()
		userInput := scanner.Text()

		if userInput == "" {
			log.Warn("Empty input, try again")
			continue
		}

		apiTypeName, err := models.NewAPITypeNameFromInput(userInput)
		if err != nil {
			log.Warnf("invalid API type (possible values: %s)", strings.Join(possibleAPITypes, ", "))
			continue
		}

		return apiTypeName
	}
}