package com.example.myapplication;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;


public class AddPhoneContactActivity extends AppCompatActivity {

    private EditText displayNameEditor;

    private EditText phoneNumberEditor;
    public int contentView;

    void onCreate() {
        onCreate();
    }

    void onCreate(Bundle savedInstanceState, SpinnerAdapter phoneTypeSpinnerAdaptor) {
        super.onCreate(savedInstanceState);
        setContentView();

        displayNameEditor = (EditText) findViewById(R.id.add_phone_contact_display_name);

        phoneNumberEditor = (EditText) findViewById(R.id.add_phone_contact_number);

        // Initialize phone type dropdown spinner.
        final Spinner phoneTypeSpinner = (Spinner) findViewById(R.id.add_phone_contact_type);
        String[] phoneTypeArr = {"Mobile", "Home", "Work"};
        ArrayAdapter<String> listAdapter = new ArrayAdapter<String>(AddPhoneContactActivity.this, R.layout.support_simple_spinner_dropdown_item, phoneTypeArr);
        phoneTypeSpinner.setAdapter(phoneTypeSpinnerAdaptor);

        // Click this button to save user input phone contact info.
        Button savePhoneContactButton = (Button)findViewById(R.id.add_phone_contact_save_button);
        savePhoneContactButton.setOnClickListener(new View.OnClickListener() {


            @Override
            public void onClick(View view) {
                // Get android phone contact content provider uri.
                //Uri addContactsUri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
                // Below uri can avoid java.lang.UnsupportedOperationException: URI: content://com.android.contacts/data/phones error.
                Uri addContactsUri = ContactsContract.Data.CONTENT_URI;

                // Add an empty contact and get the generated id.
                long rowContactId = getRawContactId();

                // Add contact name data.
                String displayName = displayNameEditor.getText().toString();
                insertContactDisplayName(addContactsUri, rowContactId, displayName);

                // Add contact phone data.
                String phoneNumber = phoneNumberEditor.getText().toString();
                String phoneTypeStr = (String) phoneTypeSpinner.getSelectedItem();
                insertContactPhoneNumber(addContactsUri, rowContactId, phoneNumber, phoneTypeStr);

                Toast.makeText(getApplicationContext(), "New contact has been added, go back to previous page to see it in contacts list.", Toast.LENGTH_LONG).show();

                finish();
            }

            private void finish() {
            }
        });
    }

    // This method will only insert an empty data to RawContacts.CONTENT_URI
    // The purpose is to get a system generated raw contact id.
    private long getRawContactId() {
        // Inser an empty contact.
        ContentValues contentValues = new ContentValues();
        Uri rawContactUri = null;
        if (null == getContentResolver()) {
        } else {
            rawContactUri = getContentResolver().insert(ContactsContract.RawContacts.CONTENT_URI, contentValues);
        }
        // Get the newly created contact raw id.
        long ret = ContentUris.parseId(rawContactUri);
        return ret;
    }


    // Insert newly created contact display name.
    private void insertContactDisplayName(Uri addContactsUri, long rawContactId, String displayName) {
        ContentValues contentValues = new ContentValues();

        contentValues.put(ContactsContract.Data.RAW_CONTACT_ID, rawContactId);

        // Each contact must has an mime type to avoid java.lang.IllegalArgumentException: mimetype is required error.
        contentValues.put(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE);

        // Put contact display name value.
        contentValues.put(ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME, displayName);

        getContentResolver().insert(addContactsUri, contentValues);

    }

    private void insertContactPhoneNumber(Uri addContactsUri, long rawContactId, String phoneNumber, String phoneTypeStr) {
        // Create a ContentValues object.
        ContentValues contentValues = new ContentValues();

        // Each contact must has an id to avoid java.lang.IllegalArgumentException: raw_contact_id is required error.
        contentValues.put(ContactsContract.Data.RAW_CONTACT_ID, rawContactId);

        // Each contact must has an mime type to avoid java.lang.IllegalArgumentException: mimetype is required error.
        contentValues.put(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE);

        // Put phone number value.
        contentValues.put(ContactsContract.CommonDataKinds.Phone.NUMBER, phoneNumber);

        // Calculate phone type by user selection.
        int phoneContactType = ContactsContract.CommonDataKinds.Phone.TYPE_HOME;

        if ("home".equalsIgnoreCase(phoneTypeStr)) {
            phoneContactType = ContactsContract.CommonDataKinds.Phone.TYPE_HOME;
        } else if ("mobile".equalsIgnoreCase(phoneTypeStr)) {
            phoneContactType = ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE;
        } else if ("work".equalsIgnoreCase(phoneTypeStr)) {
            phoneContactType = ContactsContract.CommonDataKinds.Phone.TYPE_WORK;
        }
        // Put phone type value.
        contentValues.put(ContactsContract.CommonDataKinds.Phone.TYPE, phoneContactType);

        // Insert new contact data into phone contact list.
        getContentResolver().insert(addContactsUri, contentValues);

    }


    public ContentResolver getContentResolver() {
        return null;
    }

    // ListPhoneContactsActivity use this method to start this activity.
    public static void start(Context context) {
        Intent intent = new Intent(context, AddPhoneContactActivity.class);
        context.startActivity(intent);
    }

    private void setContentView() {
        this.contentView = R.layout.activity_add_phone_contact;
    }


}