package quiztmleornando.quiztm;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import quiztmleornando.quiztm.model.User;

public class RegisterActivity extends AppCompatActivity {

    Button btnLogin;
    Button btnSubmit;
    EditText txtName, txtEmail, txtPassword, txtPhoneNumber;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        btnLogin = findViewById(R.id.btnLogin);
        btnSubmit = findViewById(R.id.btnSubmit);
        txtName = findViewById(R.id.editName);
        txtEmail = findViewById(R.id.editEmail);
        txtPassword = findViewById(R.id.editPassword);
        txtPhoneNumber = findViewById(R.id.editPhoneNumber);

        database.getInstance().userList.add(new User("test", "test", "test", "test", "test"));

        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(RegisterActivity. this,LoginActivity.class);
                startActivity(intent);
            }
        });

        btnSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                String name = txtName.getText().toString();
                String email = txtEmail.getText().toString();
                String password = txtPassword.getText().toString();
                String phoneNumber = txtPhoneNumber.getText().toString();

                String id = String.format("US%03d", database.getInstance().userList.size()+1);

                User newUser = new User(id, name, email, password, phoneNumber);

                database.getInstance().userList.add(newUser);

                if(name.indexOf(" ") == -1){
                    Toast.makeText(RegisterActivity.this,"Name must be 2 words", Toast.LENGTH_SHORT).show();
                }
                else if(email.indexOf("@") == -1 || email.indexOf(".") == -1 || email.indexOf("@") != email.lastIndexOf("@")){
                    Toast.makeText(RegisterActivity.this, "Email must have one ‘@’ & at least one ‘.’", Toast.LENGTH_SHORT).show();
                }
                else if(!isAlphaNumeric(email) || email.indexOf("_") == -1){
                    Toast.makeText(RegisterActivity.this, "Email must be in alphanumeric format and contain ‘.’, ‘@’ & ‘_’ symbol", Toast.LENGTH_SHORT).show();
                }
                else if(!validateSymbol(email)){
                    Toast.makeText(RegisterActivity.this, "Every symbol cannot be placed beside each other", Toast.LENGTH_SHORT).show();
                }
                else if(!valiPassword(password)){
                    Toast.makeText(RegisterActivity.this, "Password must contain 1 uppercase letter, 1 lowercase letter, & 1 symbol", Toast.LENGTH_SHORT).show();
                }
                else if(phoneNumber.length() < 10 || phoneNumber.length() > 14){
                    Toast.makeText(RegisterActivity.this, "Phone number length must be between 10 & 14 digits", Toast.LENGTH_SHORT).show();
                }
                else if(!phoneNumber.startsWith("0") && !phoneNumber.startsWith("+62")){
                    Toast.makeText(RegisterActivity.this, "Phone number starts with ‘0’ or ‘+62’", Toast.LENGTH_SHORT).show();
                }
                else if(!validPhoneNumber(phoneNumber)){
                    Toast.makeText(RegisterActivity.this, "Phone number contains only digits, except ‘+’ for phone number that is written in country code format (‘+62’)", Toast.LENGTH_SHORT).show();
                }
                else{
                    Intent intent = new Intent(RegisterActivity.this, LoginActivity.class);
                    startActivity(intent);
                    Toast.makeText(RegisterActivity.this, "Submit success", Toast.LENGTH_SHORT).show(); }
                }
            }
        );
    }

    private boolean valiPassword(String text){
        boolean isSymbol = false;
        boolean isUpper = false;
        boolean isLower = false;
        for(int i=0 ; i<text.length() ; i++){
            char c = text.charAt(i);
            if(!Character.isDigit(c) && !Character.isAlphabetic(c))
                isSymbol = true;
            if(Character.isUpperCase(c))
                isUpper = true;
            if(Character.isLowerCase(c))
                isLower = true;
        }
        return isSymbol && isUpper && isLower; }

    private boolean isAlphaNumeric(String text){
        boolean isAlpha = false;
        boolean isNum = false;
        for(int i=0 ; i<text.length() ; i++){
            if(Character.isDigit(text.charAt(i))) isNum = true;
            else if(Character.isAlphabetic(text.charAt(i))) isAlpha = true;
        }
        return isAlpha && isNum; }

    private boolean validateSymbol(String text){
        for(int i=0 ; i<text.length()-1 ; i++){
            char c = text.charAt(i);
            char cc = text.charAt(i+1);
            if(isSymbol(c) && isSymbol(cc))
                return false;
        }
        return true;
    }

    private boolean isSymbol(char c){
        return c == '@' || c == '.' || c == '_';
    }

    private boolean validPhoneNumber(String text){
        for(int i=0 ; i<text.length() ; i++){
            char c = text.charAt(i);
            if(!Character.isDigit(c) && ((i != 0) || (i == 0 && !text.startsWith("+62"))))
                return false;
        }
        return true; }
}