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 boolean credentialM;
    public String userName;
    public String password;
    public int newID;
    public String newString;
    public boolean decision;
    InputStream inputS = System.in;
    OutputStream outputS = System.out;
    private CredentialRepository credentialRepository = new CredentialRepository();

    /*public static void main (String args[]) {
        Vault vault = new Vault();
        vault.credentialMenu();
    }*/


    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();

        switch(input) {
            case "e":
                config = false;
                break;

            case "l":
                println("Set PW length:");
                String inputPw = scan.nextLine();
                setPWLength(inputPw);
                break;

            case "h":
                println("Should your PW have capitals? Type in yes or no.");
                String inputC = scan.nextLine();
                setCapital(inputC);
                break;

            case "s":
                println("Should you PW have special characters? Type in yes or no.");
                String inputS = scan.nextLine();
                setSpecialChar(inputS);
                break;

            case "n":
                println("Should you PW have numbers? Type in yes or no.");
                String inputN = scan.nextLine();
                setNumbers(inputN);
                break;
        }

    }

    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(String userName, String password){
        credentialRepository.createNewCredential(userName, password);
    }

    public void showCredential(String str) {

        if(str.matches("[0-9]+")) {
            println("Getting credential via ID");
            credentialRepository.getCredentialsViaId(Integer.parseInt(str));
        } else {

            println("Getting credential via name");
            credentialRepository.getCredentialsViaName(str);
        }
    }


    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();
        Scanner scan = new Scanner(inputS);
        credentialM = true;

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

        println(sbcm.toString());

        String input = scan.nextLine();

        switch(input) {
            case "e":
                credentialM = false;
                break;

            case "a":
                println("Type in username");
                userName = scan.nextLine();

                println("Type in password");
                password = scan.nextLine();
                addCredential(userName, password);
                break;

            case "c":
                println("Type in ID or username");

                String str = scan.nextLine();
                showCredential(str);
                break;

            case "l":
                println("Type ID to select credential:");
                newID = Integer.parseInt(scan.nextLine());
                println("-change username: u\n-change password: p");

                input = scan.nextLine();

                if (!input.equals("u")) {
                    decision = false;
                }
                println("Type new:");
                newString = scan.nextLine();
                //editCredential(newID, newString, decision);
                break;
        }
    }
}