/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.dialer.tests.calllog;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.LoaderManager;
import android.app.TimePickerDialog;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.RemoteException;
import android.provider.CallLog.Calls;
import android.provider.VoicemailContract;
import android.provider.VoicemailContract.Status;
import android.provider.VoicemailContract.Voicemails;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.text.Editable;
import android.text.TextWatcher;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;

import com.android.contacts.common.compat.telecom.TelecomManagerCompat;
import com.android.dialer.tests.R;
import com.android.dialer.util.AppCompatConstants;
import com.android.dialer.util.TelecomUtil;

import java.util.Calendar;
import java.util.List;
import java.util.Random;

/**
 * Activity to add entries to the call log for testing.
 */
public class FillCallLogTestActivity extends Activity {
    private static final String TAG = "FillCallLogTestActivity";
    /** Identifier of the loader for querying the call log. */
    private static final int CALLLOG_LOADER_ID = 1;

    private static final Random RNG = new Random();
    private static final int[] CALL_TYPES = new int[] {
        AppCompatConstants.CALLS_INCOMING_TYPE,
        AppCompatConstants.CALLS_OUTGOING_TYPE,
        AppCompatConstants.CALLS_MISSED_TYPE
    };

    private TextView mNumberTextView;
    private Button mAddButton;
    private ProgressBar mProgressBar;
    private CheckBox mUseRandomNumbers;
    private RadioButton mCallTypeIncoming;
    private RadioButton mCallTypeMissed;
    private RadioButton mCallTypeOutgoing;
    private RadioButton mCallTypeVoicemail;
    private RadioButton mCallTypeCustom;
    private EditText mCustomCallTypeTextView;
    private CheckBox mCallTypeVideo;
    private RadioButton mPresentationAllowed;
    private RadioButton mPresentationRestricted;
    private RadioButton mPresentationUnknown;
    private RadioButton mPresentationPayphone;
    private TextView mCallDate;
    private TextView mCallTime;
    private TextView mPhoneNumber;
    private EditText mOffset;

    private int mCallTimeHour;
    private int mCallTimeMinute;
    private int mCallDateYear;
    private int mCallDateMonth;
    private int mCallDateDay;
    private RadioButton mAccount0;
    private RadioButton mAccount1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fill_call_log_test);
        mNumberTextView = (TextView) findViewById(R.id.number);
        mAddButton = (Button) findViewById(R.id.add);
        mProgressBar = (ProgressBar) findViewById(R.id.progress);
        mUseRandomNumbers = (CheckBox) findViewById(R.id.use_random_numbers);

        mAddButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                int count;
                try {
                    count = Integer.parseInt(mNumberTextView.getText().toString());
                    if (count > 100) {
                        throw new RuntimeException("Number too large.  Max=100");
                    }
                } catch (RuntimeException e) {
                    Toast.makeText(FillCallLogTestActivity.this, e.toString(), Toast.LENGTH_LONG)
                            .show();
                    return;
                }
                addEntriesToCallLog(count, mUseRandomNumbers.isChecked());
                mNumberTextView.setEnabled(false);
                mAddButton.setEnabled(false);
                mProgressBar.setProgress(0);
                mProgressBar.setMax(count);
                mProgressBar.setVisibility(View.VISIBLE);
            }
        });

        mCallTypeIncoming = (RadioButton) findViewById(R.id.call_type_incoming);
        mCallTypeMissed = (RadioButton) findViewById(R.id.call_type_missed);
        mCallTypeOutgoing = (RadioButton) findViewById(R.id.call_type_outgoing);
        mCallTypeVoicemail = (RadioButton) findViewById(R.id.call_type_voicemail);
        mCallTypeCustom = (RadioButton) findViewById(R.id.call_type_custom);
        mCustomCallTypeTextView = (EditText) findViewById(R.id.call_type_custom_text);
        mCallTypeVideo = (CheckBox) findViewById(R.id.call_type_video);
        mPresentationAllowed = (RadioButton) findViewById(R.id.presentation_allowed);
        mPresentationPayphone = (RadioButton) findViewById(R.id.presentation_payphone);
        mPresentationUnknown = (RadioButton) findViewById(R.id.presentation_unknown);
        mPresentationRestricted = (RadioButton) findViewById(R.id.presentation_restricted);
        mCallTime = (TextView) findViewById(R.id.call_time);
        mCallDate = (TextView) findViewById(R.id.call_date);
        mPhoneNumber = (TextView) findViewById(R.id.phone_number);
        mOffset = (EditText) findViewById(R.id.delta_after_add);
        mAccount0 = (RadioButton) findViewById(R.id.account0);
        mAccount1 = (RadioButton) findViewById(R.id.account1);

        mCustomCallTypeTextView.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                // Do nothing.
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                // Toggle the custom call type radio button if the text is changed/focused.
                mCallTypeCustom.toggle();
            }

            @Override
            public void afterTextChanged(Editable s) {
                // Do nothing.
            }
        });

        // Use the current time as the default values for the picker
        final Calendar c = Calendar.getInstance();
        mCallTimeHour = c.get(Calendar.HOUR_OF_DAY);
        mCallTimeMinute = c.get(Calendar.MINUTE);
        mCallDateYear = c.get(Calendar.YEAR);
        mCallDateMonth = c.get(Calendar.MONTH);
        mCallDateDay = c.get(Calendar.DAY_OF_MONTH);
        setDisplayDate();
        setDisplayTime();
    }

    /**
     * Adds a number of entries to the call log. The content of the entries is based on existing
     * entries.
     *
     * @param count the number of entries to add
     */
    private void addEntriesToCallLog(final int count, boolean useRandomNumbers) {
        if (useRandomNumbers) {
            addRandomNumbers(count);
        } else {
            getLoaderManager().initLoader(CALLLOG_LOADER_ID, null,
                    new CallLogLoaderListener(count));
        }
    }

    /**
     * Calls when the insertion has completed.
     *
     * @param message the message to show in a toast to the user
     */
    private void insertCompleted(String message) {
        // Hide the progress bar.
        mProgressBar.setVisibility(View.GONE);
        // Re-enable the add button.
        mNumberTextView.setEnabled(true);
        mAddButton.setEnabled(true);
        mNumberTextView.setText("");
        Toast.makeText(this, message, Toast.LENGTH_LONG).show();
    }


    /**
     * Creates a {@link ContentValues} object containing values corresponding to the given cursor.
     *
     * @param cursor the cursor from which to get the values
     * @return a newly created content values object
     */
    private ContentValues createContentValuesFromCursor(Cursor cursor) {
        ContentValues values = new ContentValues();
        for (int column = 0; column < cursor.getColumnCount();
                ++column) {
            String name = cursor.getColumnName(column);
            switch (cursor.getType(column)) {
                case Cursor.FIELD_TYPE_STRING:
                    values.put(name, cursor.getString(column));
                    break;
                case Cursor.FIELD_TYPE_INTEGER:
                    values.put(name, cursor.getLong(column));
                    break;
                case Cursor.FIELD_TYPE_FLOAT:
                    values.put(name, cursor.getDouble(column));
                    break;
                case Cursor.FIELD_TYPE_BLOB:
                    values.put(name, cursor.getBlob(column));
                    break;
                case Cursor.FIELD_TYPE_NULL:
                    values.putNull(name);
                    break;
                default:
                    Log.d(TAG, "Invalid value in cursor: " + cursor.getType(column));
                    break;
            }
        }
        return values;
    }

    private void addRandomNumbers(int count) {
        ContentValues[] values = new ContentValues[count];
        for (int i = 0; i < count; i++) {
            values[i] = new ContentValues();
            values[i].put(Calls.NUMBER, generateRandomNumber());
            values[i].put(Calls.NUMBER_PRESENTATION, Calls.PRESENTATION_ALLOWED);
            values[i].put(Calls.DATE, System.currentTimeMillis()); // Will be randomized later
            values[i].put(Calls.DURATION, 1); // Will be overwritten later
        }
        new AsyncCallLogInserter(values).execute(new Void[0]);
    }

    private static String generateRandomNumber() {
        return String.format("5%09d", RNG.nextInt(1000000000));
    }

    /** Invokes {@link AsyncCallLogInserter} when the call log has loaded. */
    private final class CallLogLoaderListener implements LoaderManager.LoaderCallbacks<Cursor> {
        /** The number of items to insert when done. */
        private final int mCount;

        private CallLogLoaderListener(int count) {
            mCount = count;
        }

        @Override
        public Loader<Cursor> onCreateLoader(int id, Bundle args) {
            Log.d(TAG, "onCreateLoader");
            return new CursorLoader(FillCallLogTestActivity.this, Calls.CONTENT_URI,
                    null, null, null, null);
        }

        @Override
        public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
            try {
                Log.d(TAG, "onLoadFinished");

                if (data.getCount() == 0) {
                    // If there are no entries in the call log, we cannot generate new ones.
                    insertCompleted(getString(R.string.noLogEntriesToast));
                    return;
                }

                data.moveToPosition(-1);

                ContentValues[] values = new ContentValues[mCount];
                for (int index = 0; index < mCount; ++index) {
                    if (!data.moveToNext()) {
                        data.moveToFirst();
                    }
                    values[index] = createContentValuesFromCursor(data);
                }
                new AsyncCallLogInserter(values).execute(new Void[0]);
            } finally {
                // This is a one shot loader.
                getLoaderManager().destroyLoader(CALLLOG_LOADER_ID);
            }
        }

        @Override
        public void onLoaderReset(Loader<Cursor> loader) {}
    }

    /** Inserts a given number of entries in the call log based on the values given. */
    private final class AsyncCallLogInserter extends AsyncTask<Void, Integer, Integer> {
        /** The number of items to insert. */
        private final ContentValues[] mValues;

        public AsyncCallLogInserter(ContentValues[] values) {
            mValues = values;
        }

        @Override
        protected Integer doInBackground(Void... params) {
            Log.d(TAG, "doInBackground");
            return insertIntoCallLog();
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            Log.d(TAG, "onProgressUpdate");
            updateCount(values[0]);
        }

        @Override
        protected void onPostExecute(Integer count) {
            Log.d(TAG, "onPostExecute");
            insertCompleted(getString(R.string.addedLogEntriesToast, count));
        }

        /**
         * Inserts a number of entries in the call log based on the given templates.
         *
         * @return the number of inserted entries
         */
        private Integer insertIntoCallLog() {
            int inserted = 0;

            for (int index = 0; index < mValues.length; ++index) {
                ContentValues values = mValues[index];
                // These should not be set.
                values.putNull(Calls._ID);
                // Add some randomness to the date. For each new entry being added, add an extra
                // day to the maximum possible offset from the original.
                values.put(Calls.DATE,
                        values.getAsLong(Calls.DATE)
                        - RNG.nextInt(24 * 60 * 60 * (index + 1)) * 1000L);
                // Add some randomness to the duration.
                if (values.getAsLong(Calls.DURATION) > 0) {
                    values.put(Calls.DURATION, RNG.nextInt(30 * 60 * 60 * 1000));
                }

                // Overwrite type.
                values.put(Calls.TYPE, CALL_TYPES[RNG.nextInt(CALL_TYPES.length)]);

                // Clear cached columns.
                values.putNull(Calls.CACHED_FORMATTED_NUMBER);
                values.putNull(Calls.CACHED_LOOKUP_URI);
                values.putNull(Calls.CACHED_MATCHED_NUMBER);
                values.putNull(Calls.CACHED_NAME);
                values.putNull(Calls.CACHED_NORMALIZED_NUMBER);
                values.putNull(Calls.CACHED_NUMBER_LABEL);
                values.putNull(Calls.CACHED_NUMBER_TYPE);
                values.putNull(Calls.CACHED_PHOTO_ID);

                // Insert into the call log the newly generated entry.
                ContentProviderClient contentProvider =
                        getContentResolver().acquireContentProviderClient(
                                Calls.CONTENT_URI);
                try {
                    Log.d(TAG, "adding entry to call log");
                    contentProvider.insert(Calls.CONTENT_URI, values);
                    ++inserted;
                    this.publishProgress(inserted);
                } catch (RemoteException e) {
                    Log.d(TAG, "insert failed", e);
                }
            }
            return inserted;
        }
    }

    /**
     * Updates the count shown to the user corresponding to the number of entries added.
     *
     * @param count the number of entries inserted so far
     */
    public void updateCount(Integer count) {
        mProgressBar.setProgress(count);
    }

    /**
     * Determines the call type for a manually entered call.
     *
     * @return Call type.
     */
    private int getManualCallType() {
        if (mCallTypeIncoming.isChecked()) {
            return AppCompatConstants.CALLS_INCOMING_TYPE;
        } else if (mCallTypeOutgoing.isChecked()) {
            return AppCompatConstants.CALLS_OUTGOING_TYPE;
        } else if (mCallTypeVoicemail.isChecked()) {
            return AppCompatConstants.CALLS_VOICEMAIL_TYPE;
        } else if (mCallTypeCustom.isChecked()) {
            return Integer.parseInt(mCustomCallTypeTextView.getText().toString());
        } else {
            return AppCompatConstants.CALLS_MISSED_TYPE;
        }
    }

    /**
     * Determines the presentation for a manually entered call.
     *
     * @return Presentation.
     */
    private int getManualPresentation() {
        if (mPresentationAllowed.isChecked()) {
            return Calls.PRESENTATION_ALLOWED;
        } else if (mPresentationPayphone.isChecked()) {
            return Calls.PRESENTATION_PAYPHONE;
        } else if (mPresentationRestricted.isChecked()) {
            return Calls.PRESENTATION_RESTRICTED;
        } else {
            return Calls.PRESENTATION_UNKNOWN;
        }
    }

    private PhoneAccountHandle getManualAccount() {
        List <PhoneAccountHandle> accountHandles = TelecomUtil.getCallCapablePhoneAccounts(this);
        //TODO: hide the corresponding radio buttons if no accounts are available.
        if (mAccount0.isChecked()) {
            return accountHandles.get(0);
        } else if (mAccount1.isChecked()){
            return accountHandles.get(1);
        } else {
            return null;
        }
    }

    /**
     * Shows a time picker dialog, storing the results in the time field.
     */
    public void showTimePickerDialog(View v) {
        DialogFragment newFragment = new TimePickerFragment();
        newFragment.show(getFragmentManager(),"timePicker");
    }

    /**
     * Helper class to display time picker and store the hour/minute.
     */
    public class TimePickerFragment extends DialogFragment
            implements TimePickerDialog.OnTimeSetListener {

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Create a new instance of TimePickerDialog and return it
            return new TimePickerDialog(getActivity(), this, mCallTimeHour, mCallTimeMinute,
                    DateFormat.is24HourFormat(getActivity()));
        }

        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            mCallTimeHour = hourOfDay;
            mCallTimeMinute = minute;
            setDisplayTime();
        }
    }

    /**
     * Sets the call time TextView to the current selected time.
     */
    private void setDisplayTime() {
        mCallTime.setText(String.format("%02d:%02d", mCallTimeHour, mCallTimeMinute));
    }

    /**
     * Sets the call date Textview to the current selected date
     */
    private void setDisplayDate() {
        mCallDate.setText(String.format("%04d-%02d-%02d", mCallDateYear, mCallDateMonth,
                mCallDateDay));
    }

    /**
     * Shows a date picker dialog.
     */
    public void showDatePickerDialog(View v) {
        DialogFragment newFragment = new DatePickerFragment();
        newFragment.show(getFragmentManager(),"datePicker");
    }

    /**
     * Helper class to show a date picker.
     */
    public class DatePickerFragment extends DialogFragment
            implements DatePickerDialog.OnDateSetListener {

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Create a new instance of DatePickerDialog and return it
            return new DatePickerDialog(getActivity(), this, mCallDateYear, mCallDateMonth,
                    mCallDateDay);
        }

        public void onDateSet(DatePicker view, int year, int month, int day) {
            mCallDateYear = year;
            mCallDateMonth = month;
            mCallDateDay = day;
            setDisplayDate();
        }
    }

    /**
     * OnClick handler for the button that adds a manual call log entry to the call log.
     *
     * @param v Calling view.
     */
    public void addManualEntry(View v) {
        Calendar dateTime = Calendar.getInstance();
        dateTime.set(mCallDateYear, mCallDateMonth, mCallDateDay, mCallTimeHour, mCallTimeMinute);

        int features = mCallTypeVideo.isChecked() ? Calls.FEATURES_VIDEO : 0;
        Long dataUsage = null;
        if (mCallTypeVideo.isChecked()) {
            // Some random data usage up to 50MB.
            dataUsage = (long) RNG.nextInt(52428800);
        }

        if (getManualCallType() == AppCompatConstants.CALLS_VOICEMAIL_TYPE) {
            addManualVoicemail(dateTime.getTimeInMillis());
        } else {
            addCall(mPhoneNumber.getText().toString(), getManualPresentation(),
                    getManualCallType(), features, getManualAccount(),
                    dateTime.getTimeInMillis(), RNG.nextInt(60 * 60), dataUsage);
        }

        // Subtract offset from the call date/time and store as new date/time
        int offset = Integer.parseInt(mOffset.getText().toString());

        dateTime.add(Calendar.MINUTE, offset);
        mCallDateYear = dateTime.get(Calendar.YEAR);
        mCallDateMonth = dateTime.get(Calendar.MONTH);
        mCallDateDay = dateTime.get(Calendar.DAY_OF_MONTH);
        mCallTimeHour = dateTime.get(Calendar.HOUR_OF_DAY);
        mCallTimeMinute = dateTime.get(Calendar.MINUTE);
        setDisplayDate();
        setDisplayTime();
    }

    // Copied and modified to compile unbundled from android.provider.CallLog
    public Uri addCall(String number,
            int presentation, int callType, int features, PhoneAccountHandle accountHandle,
            long start, int duration, Long dataUsage) {
        final ContentResolver resolver = getContentResolver();
        int numberPresentation = Calls.PRESENTATION_ALLOWED;

        String accountAddress = null;
        if (accountHandle != null) {
            PhoneAccount account = TelecomUtil.getPhoneAccount(this, accountHandle);
            if (account != null) {
                Uri address = account.getSubscriptionAddress();
                if (address != null) {
                    accountAddress = address.getSchemeSpecificPart();
                }
            }
        }

        if (numberPresentation != Calls.PRESENTATION_ALLOWED) {
            number = "";
        }

        // accountHandle information
        String accountComponentString = null;
        String accountId = null;
        if (accountHandle != null) {
            accountComponentString = accountHandle.getComponentName().flattenToString();
            accountId = accountHandle.getId();
        }

        ContentValues values = new ContentValues(6);

        values.put(Calls.NUMBER, number);
        values.put(Calls.NUMBER_PRESENTATION, Integer.valueOf(numberPresentation));
        values.put(Calls.TYPE, Integer.valueOf(callType));
        values.put(Calls.FEATURES, features);
        values.put(Calls.DATE, Long.valueOf(start));
        values.put(Calls.DURATION, Long.valueOf(duration));
        if (dataUsage != null) {
            values.put(Calls.DATA_USAGE, dataUsage);
        }
        values.put(Calls.PHONE_ACCOUNT_COMPONENT_NAME, accountComponentString);
        values.put(Calls.PHONE_ACCOUNT_ID, accountId);
        // Calls.PHONE_ACCOUNT_ADDRESS
        values.put("phone_account_address", accountAddress);
        values.put(Calls.NEW, Integer.valueOf(1));

        if (callType == AppCompatConstants.CALLS_MISSED_TYPE) {
            values.put(Calls.IS_READ, 0);
        }

        return addEntryAndRemoveExpiredEntries(this, Calls.CONTENT_URI, values);
    }

    // Copied from android.provider.CallLog
    private static Uri addEntryAndRemoveExpiredEntries(Context context, Uri uri,
            ContentValues values) {
        final ContentResolver resolver = context.getContentResolver();
        Uri result = resolver.insert(uri, values);
        resolver.delete(uri, "_id IN " +
                "(SELECT _id FROM calls ORDER BY " + Calls.DEFAULT_SORT_ORDER
                + " LIMIT -1 OFFSET 500)", null);
        return result;
    }

    private void addManualVoicemail(Long time) {
        final ContentValues contentValues = new ContentValues();
        contentValues.put(Voicemails.DATE, time);
        contentValues.put(Voicemails.NUMBER, mPhoneNumber.getText().toString());
        contentValues.put(Voicemails.DURATION, 5000);
        contentValues.put(Voicemails.SOURCE_PACKAGE, getPackageName());
        contentValues.put(Voicemails.SOURCE_DATA, 500);
        contentValues.put(Voicemails.IS_READ, 0);

        getContentResolver().insert(VoicemailContract.Voicemails.buildSourceUri(getPackageName()),
                contentValues);

        updateVoicemailStatus();
    }

    private void updateVoicemailStatus() {
        ContentResolver contentResolver = getContentResolver();
        Uri statusUri = VoicemailContract.Status.buildSourceUri(getPackageName());
        final PhoneAccountHandle accountHandle = getManualAccount();

        ContentValues values = new ContentValues();
        values.put(Status.PHONE_ACCOUNT_COMPONENT_NAME, getPackageName());
        values.put(Status.PHONE_ACCOUNT_ID, "ACCOUNT_ID");
        values.put(Status.CONFIGURATION_STATE, VoicemailContract.Status.CONFIGURATION_STATE_OK);
        values.put(Status.DATA_CHANNEL_STATE, VoicemailContract.Status.DATA_CHANNEL_STATE_OK);
        values.put(Status.NOTIFICATION_CHANNEL_STATE,
                VoicemailContract.Status.NOTIFICATION_CHANNEL_STATE_OK);

        contentResolver.insert(statusUri, values);
    }
}