/*
 * Copyright (C) 2015 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.logging;

import android.text.TextUtils;

import com.android.contacts.common.dialog.ClearFrequentsDialog;
import com.android.contacts.common.interactions.ImportExportDialogFragment;
import com.android.dialer.calllog.CallLogFragment;
import com.android.dialer.dialpad.DialpadFragment;
import com.android.dialer.filterednumber.BlockedNumbersFragment;
import com.android.dialer.list.AllContactsFragment;
import com.android.dialer.list.BlockedListSearchFragment;
import com.android.dialer.list.RegularSearchFragment;
import com.android.dialer.list.SmartDialSearchFragment;
import com.android.dialer.list.SpeedDialFragment;
import com.android.dialer.settings.DialerSettingsActivity;
import com.android.incallui.AnswerFragment;
import com.android.incallui.CallCardFragment;
import com.android.incallui.ConferenceManagerFragment;
import com.android.incallui.InCallActivity;

import java.util.HashMap;
import java.util.Map;

/**
 * Stores constants identifying individual screens/dialogs/fragments in the application, and also
 * provides a mapping of integer id -> screen name mappings for analytics purposes.
 */
public class ScreenEvent {
    private static final Map<Integer, String> sScreenNameMap = new HashMap<>();

    public static final String FRAGMENT_TAG_SEPARATOR = "#";

    public static final int UNKNOWN = 0;

    // The dialpad in the main Dialer activity
    public static final int DIALPAD = 1;

    // The speed dial tab in the main Dialer activity
    public static final int SPEED_DIAL = 2;

    // The recents tab in the main Dialer activity
    public static final int CALL_LOG = 3;

    // The voicemail tab in the main Dialer activity
    public static final int VOICEMAIL_LOG = 4;

    // The all contacts tab in the main Dialer activity
    public static final int ALL_CONTACTS = 5;

    // List of search results returned by typing into the search box.
    public static final int REGULAR_SEARCH = 6;

    // List of search results returned by typing into the dialpad.
    public static final int SMART_DIAL_SEARCH = 7;

    // The All and Missed call log tabs in CallLogActivity
    public static final int CALL_LOG_FILTER = 8;

    // Dialer settings screen.
    public static final int SETTINGS = 9;

    // The "Import/export contacts" dialog launched via the overflow menu.
    public static final int IMPORT_EXPORT_CONTACTS = 10;

    // The "Clear frequents" dialog launched via the overflow menu.
    public static final int CLEAR_FREQUENTS = 11;

    // The "Send feedback" dialog launched via the overflow menu.
    public static final int SEND_FEEDBACK = 12;

    // The main in call screen that displays caller details and contact photos
    public static final int INCALL = 13;

    // The screen that displays the glowpad widget (slide right to answer,
    // slide left to dismiss).
    public static final int INCOMING_CALL = 14;

    // Conference management fragment displayed for conferences that support
    // management of individual calls within the conference.
    public static final int CONFERENCE_MANAGEMENT = 15;

    // The dialpad displayed in-call that is used to send dtmf tones.
    public static final int INCALL_DIALPAD = 16;

    // Menu options displayed when long pressing on a call log entry.
    public static final int CALL_LOG_CONTEXT_MENU = 17;

    // Screen displayed to allow the user to see an overview of all blocked
    // numbers.
    public static final int BLOCKED_NUMBER_MANAGEMENT = 18;

    // Screen displayed to allow the user to add a new blocked number.
    public static final int BLOCKED_NUMBER_ADD_NUMBER = 19;

    static {
        sScreenNameMap.put(ScreenEvent.DIALPAD,
                getScreenNameWithTag(DialpadFragment.class.getSimpleName(), "Dialer"));
        sScreenNameMap.put(ScreenEvent.SPEED_DIAL, SpeedDialFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.CALL_LOG,
                getScreenNameWithTag(CallLogFragment.class.getSimpleName(), "History"));
        sScreenNameMap.put(ScreenEvent.VOICEMAIL_LOG,
                getScreenNameWithTag(CallLogFragment.class.getSimpleName(), "Voicemail"));
        sScreenNameMap.put(ScreenEvent.ALL_CONTACTS, AllContactsFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.REGULAR_SEARCH,
                RegularSearchFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.SMART_DIAL_SEARCH,
                SmartDialSearchFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.CALL_LOG_FILTER,
                getScreenNameWithTag(CallLogFragment.class.getSimpleName(), "Filtered"));
        sScreenNameMap.put(ScreenEvent.SETTINGS,
                DialerSettingsActivity.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.IMPORT_EXPORT_CONTACTS,
                ImportExportDialogFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.CLEAR_FREQUENTS,
                ClearFrequentsDialog.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.SEND_FEEDBACK, "SendFeedback");
        sScreenNameMap.put(ScreenEvent.INCALL, InCallActivity.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.INCOMING_CALL, AnswerFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.CONFERENCE_MANAGEMENT,
                ConferenceManagerFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.INCALL_DIALPAD,
                getScreenNameWithTag(DialpadFragment.class.getSimpleName(), "InCall"));
        sScreenNameMap.put(ScreenEvent.CALL_LOG_CONTEXT_MENU, "CallLogContextMenu");
        sScreenNameMap.put(ScreenEvent.BLOCKED_NUMBER_MANAGEMENT,
                BlockedNumbersFragment.class.getSimpleName());
        sScreenNameMap.put(ScreenEvent.BLOCKED_NUMBER_ADD_NUMBER,
                BlockedListSearchFragment.class.getSimpleName());
    }

    /**
     * For a given screen type, returns the actual screen name that is used for logging/analytics
     * purposes.
     *
     * @param screenType unique ID of a type of screen
     *
     * @return the tagged version of the screen name corresponding to the provided screenType,
     *         or {@null} if the provided screenType is unknown.
     */
    public static String getScreenName(int screenType) {
        return sScreenNameMap.get(screenType);
    }

    /**
     * Build a tagged version of the provided screenName if the tag is non-empty.
     *
     * @param screenName Name of the screen.
     * @param tag Optional tag describing the screen.
     * @return the unchanged screenName if the tag is {@code null} or empty, the tagged version of
     *         the screenName otherwise.
     */
    public static String getScreenNameWithTag(String screenName, String tag) {
        if (TextUtils.isEmpty(tag)) {
            return screenName;
        }
        return screenName + FRAGMENT_TAG_SEPARATOR + tag;
    }
}