import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

public class Vault implements VaultInterface {

    public boolean config;
    public int PWLength;
    public boolean haveCapitals;
    public boolean hasSpecialChars;
    public boolean hasNumbers;
    public String userName;
    InputStream inputS = System.in;
    OutputStream outputS = System.out;

    private void println(String output) {
        try {
            outputS.write((output + "\n").getBytes(StandardCharsets.UTF_8));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void configure(){
        StringBuilder sbcm = new StringBuilder();
        Scanner scan = new Scanner(inputS);
        config = true;

        sbcm.append("Configure:\n");
        sbcm.append("- Password length: l\n");
        sbcm.append("- Have capitals: h\n");
        sbcm.append("- Have special characters: s\n");
        sbcm.append("- Have Numbers: n\n");
        sbcm.append("- exit: e\n");

        println(sbcm.toString());

        String input = scan.nextLine();

        if (input.equals("e")) {
            config = false;
        } else if (input.equals("l")) {
            println("Set PW length:");
            String inputPw = scan.nextLine();
            setPWLength(inputPw);
        } else if (input.equals("h")) {
            println("Should your PW have capitals? Type in yes or no.");
            String inputC = scan.nextLine();
            setCapital(inputC);
        } else if (input.equals("s")){
            println("Should you PW have special characters? Type in yes or no.");
            String inputS = scan.nextLine();
            setSpecialChar(inputS);
        } else if (input.equals("n")) {
            println("Should you PW have numbers? Type in yes or no.");
            String inputN = scan.nextLine();
            setNumbers(input);
        }
    }

    public void setPWLength(String pwLength){
        try {
            PWLength = Integer.parseInt(pwLength);
        } catch (NumberFormatException e) {
            println("Please enter valid number.");
        }

        println("\nNew password length is now: ");
    }


    public void addCredential(){

    }

    public void showCredential(){

    }

    public void getAsJson(){

    }

    public void loadFromJson(){

    }

    public void setCapital(String input) {

        if(input.equals("yes")){
            haveCapitals = true;
            println("Your PWs contain now capitals.");
        }else if(input.equals("no")){
            haveCapitals = false;
            println("Your PWs don´t have capitals anymore.");
        }
    }


    public void setSpecialChar(String input) {

        if(input.equals("yes")){
            hasSpecialChars = true;
            println("Your PWs contain now special characters.");
        }else if(input.equals("no")){
            hasSpecialChars = false;
            println("Your PWs don´t have special characters anymore.");
        }
    }

    public void setNumbers(String input) {

        if(input.equals("yes")){
            hasNumbers = true;
            println("Your PWs contains now numbers.");
        }else if(input.equals("no")){
            hasNumbers = false;
            println("Your PWs don´t have numbers anymore.");
        }
    }

    public void credentialMenu() {
        StringBuilder sbcm = new StringBuilder();

        sbcm.append("Configure credentials:\n");
        sbcm.append("- add credential: a\n");
        sbcm.append("- show credential: c\n");
        sbcm.append("- exit: e\n");

        println(sbcm.toString());
    }
}