package com.eventyay.organizer.utils;

import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;

import com.eventyay.organizer.common.Function;
import com.google.android.material.textfield.TextInputLayout;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public final class ValidateUtils {

    private static final Pattern VALID_EMAIL_ADDRESS_REGEX =
        Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);

    private static final Pattern VALID_URL_REGEX =
        Pattern.compile("^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]");

    private ValidateUtils() {
    }

    public static boolean validateEmail(String emailStr) {
        Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(emailStr);
        return matcher.find();
    }

    public static boolean validateUrl(String urlStr) {
        Matcher matcher = VALID_URL_REGEX.matcher(urlStr);
        return matcher.find();
    }

    public static void validate(TextInputLayout textInputLayout, Function<String, Boolean> validationReference, String errorResponse) {
        textInputLayout.getEditText().addTextChangedListener(new TextWatcher() {

            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                // Nothing here
            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                if (validationReference.apply(charSequence.toString())) {
                    textInputLayout.setError(null);
                    textInputLayout.setErrorEnabled(false);
                } else {
                    textInputLayout.setErrorEnabled(true);
                    textInputLayout.setError(errorResponse);
                }
                if (TextUtils.isEmpty(charSequence)) {
                    textInputLayout.setError(null);
                    textInputLayout.setErrorEnabled(false);
                }
            }

            @Override
            public void afterTextChanged(Editable editable) {
                // Nothing here
            }
        });
    }
}