package com.example.contacts;

import android.content.Context;
import android.os.Bundle;

import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.example.contacts.database.ContactDatabase;
import com.example.contacts.models.Contact;

import java.util.regex.Pattern;

public class InsertFragment extends Fragment {

    private EditText editName, editPhone, editEmail, editAddress;
    private Button btnInsert;

    OnContactInsertedListener contactInsertedListener;

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        try {
            contactInsertedListener = (OnContactInsertedListener) context;
        } catch (ClassCastException e) {
            throw new ClassCastException(context.toString() + " must implement OnContactInsertedListener");
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_insert, container, false);
        editName = v.findViewById(R.id.editName);
        editPhone = v.findViewById(R.id.editPhone);
        editEmail = v.findViewById(R.id.editEmail);
        editAddress = v.findViewById(R.id.editAddress);
        btnInsert = v.findViewById(R.id.btnInsert);

        btnInsert.setOnClickListener(view -> {
            String name = editName.getText().toString();
            String phone = editPhone.getText().toString();
            String email = editEmail.getText().toString();

            // Check for empty required fields
            if (name.isEmpty() || phone.isEmpty()) {
                Toast.makeText(getActivity(), "Попълни задължителни полета",
                        Toast.LENGTH_LONG).show();
                return;
            }

            // Validate phone number (10 digits as an example)
            if (!isValidPhone(phone)) {
                Toast.makeText(getActivity(), "Невалиден телефонен номер", Toast.LENGTH_LONG).show();
                return;
            }

            // Validate email address
            if (!email.isEmpty() && !isValidEmail(email)) {
                Toast.makeText(getActivity(), "Невалиден имейл адрес", Toast.LENGTH_LONG).show();
                return;
            }

            // Create and insert the contact
            Contact c = new Contact();
            c.setName(name);
            c.setPhone(phone);
            c.setEmail(email);
            c.setAddress(editAddress.getText().toString());

            Thread t = new Thread(() -> {
                ContactDatabase.getInstance(getActivity())
                        .contactDao().insertContact(c);

                contactInsertedListener.onContactInserted();

                getActivity().runOnUiThread(() -> {
                    editName.setText("");
                    editPhone.setText("");
                    editAddress.setText("");
                    editEmail.setText("");
                });
            });
            t.start();
        });

        return v;
    }

    // Utility method to validate phone number
    private boolean isValidPhone(String phone) {
        // Example: checks if the phone number is 10 digits
        String phonePattern = "^\\d{10}$";
        return Pattern.matches(phonePattern, phone);
    }

    // Utility method to validate email
    private boolean isValidEmail(String email) {
        String emailPattern = "^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$";
        return Pattern.matches(emailPattern, email);
    }
}