/*
 * 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.app.calllog;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.graphics.Typeface;
import android.net.Uri;
import android.provider.CallLog.Calls;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.support.v4.content.ContextCompat;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.text.method.LinkMovementMethod;
import android.text.style.TextAppearanceSpan;
import android.text.style.URLSpan;
import android.text.util.Linkify;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.android.dialer.app.R;
import com.android.dialer.app.calllog.calllogcache.CallLogCache;
import com.android.dialer.calllogutils.PhoneCallDetails;
import com.android.dialer.common.LogUtil;
import com.android.dialer.compat.android.provider.VoicemailCompat;
import com.android.dialer.compat.telephony.TelephonyManagerCompat;
import com.android.dialer.logging.ContactSource;
import com.android.dialer.oem.MotorolaUtils;
import com.android.dialer.phonenumberutil.PhoneNumberHelper;
import com.android.dialer.storage.StorageComponent;
import com.android.dialer.util.DialerUtils;
import com.android.voicemail.VoicemailClient;
import com.android.voicemail.VoicemailComponent;
import com.android.voicemail.impl.transcribe.TranscriptionRatingHelper;
import com.google.internal.communications.voicemailtranscription.v1.TranscriptionRatingValue;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.concurrent.TimeUnit;

/** Helper class to fill in the views in {@link PhoneCallDetailsViews}. */
public class PhoneCallDetailsHelper
    implements TranscriptionRatingHelper.SuccessListener,
        TranscriptionRatingHelper.FailureListener {
  /** The maximum number of icons will be shown to represent the call types in a group. */
  private static final int MAX_CALL_TYPE_ICONS = 3;

  private static final String PREF_VOICEMAIL_DONATION_PROMO_SHOWN_KEY =
      "pref_voicemail_donation_promo_shown_key";

  private final Context context;
  private final Resources resources;
  private final CallLogCache callLogCache;
  /** Calendar used to construct dates */
  private final Calendar calendar;
  /** The injected current time in milliseconds since the epoch. Used only by tests. */
  private Long currentTimeMillisForTest;

  private CharSequence phoneTypeLabelForTest;
  /** List of items to be concatenated together for accessibility descriptions */
  private ArrayList<CharSequence> descriptionItems = new ArrayList<>();

  /**
   * Creates a new instance of the helper.
   *
   * <p>Generally you should have a single instance of this helper in any context.
   *
   * @param resources used to look up strings
   */
  public PhoneCallDetailsHelper(Context context, Resources resources, CallLogCache callLogCache) {
    this.context = context;
    this.resources = resources;
    this.callLogCache = callLogCache;
    calendar = Calendar.getInstance();
  }

  /** Fills the call details views with content. */
  public void setPhoneCallDetails(PhoneCallDetailsViews views, PhoneCallDetails details) {
    // Display up to a given number of icons.
    views.callTypeIcons.clear();
    int count = details.callTypes.length;
    boolean isVoicemail = false;
    for (int index = 0; index < count && index < MAX_CALL_TYPE_ICONS; ++index) {
      views.callTypeIcons.add(details.callTypes[index]);
      if (index == 0) {
        isVoicemail = details.callTypes[index] == Calls.VOICEMAIL_TYPE;
      }
    }

    // Show the video icon if the call had video enabled.
    views.callTypeIcons.setShowVideo(
        (details.features & Calls.FEATURES_VIDEO) == Calls.FEATURES_VIDEO);
    views.callTypeIcons.setShowHd(
        (details.features & Calls.FEATURES_HD_CALL) == Calls.FEATURES_HD_CALL);
    views.callTypeIcons.setShowWifi(
        MotorolaUtils.shouldShowWifiIconInCallLog(context, details.features));
    views.callTypeIcons.setShowAssistedDialed(
        (details.features & TelephonyManagerCompat.FEATURES_ASSISTED_DIALING)
            == TelephonyManagerCompat.FEATURES_ASSISTED_DIALING);
    views.callTypeIcons.requestLayout();
    views.callTypeIcons.setVisibility(View.VISIBLE);

    // Show the total call count only if there are more than the maximum number of icons.
    final Integer callCount;
    if (count > MAX_CALL_TYPE_ICONS) {
      callCount = count;
    } else {
      callCount = null;
    }

    // Set the call count, location, date and if voicemail, set the duration.
    setDetailText(views, callCount, details);

    // Set the account label if it exists.
    String accountLabel = callLogCache.getAccountLabel(details.accountHandle);
    if (!TextUtils.isEmpty(details.viaNumber)) {
      if (!TextUtils.isEmpty(accountLabel)) {
        accountLabel =
            resources.getString(
                R.string.call_log_via_number_phone_account, accountLabel, details.viaNumber);
      } else {
        accountLabel = resources.getString(R.string.call_log_via_number, details.viaNumber);
      }
    }
    if (!TextUtils.isEmpty(accountLabel)) {
      views.callAccountLabel.setVisibility(View.VISIBLE);
      views.callAccountLabel.setText(accountLabel);
      int color = callLogCache.getAccountColor(details.accountHandle);
      if (color == PhoneAccount.NO_HIGHLIGHT_COLOR) {
        int defaultColor = R.color.dialer_secondary_text_color;
        views.callAccountLabel.setTextColor(context.getResources().getColor(defaultColor));
      } else {
        views.callAccountLabel.setTextColor(color);
      }
    } else {
      views.callAccountLabel.setVisibility(View.GONE);
    }

    final CharSequence nameText;
    final CharSequence displayNumber = details.displayNumber;
    if (TextUtils.isEmpty(details.getPreferredName())) {
      nameText = displayNumber;
      // We have a real phone number as "nameView" so make it always LTR
      views.nameView.setTextDirection(View.TEXT_DIRECTION_LTR);
    } else {
      nameText = details.getPreferredName();
      // "nameView" is updated from phone number to contact name after number matching.
      // Since TextDirection remains at View.TEXT_DIRECTION_LTR, initialize it.
      views.nameView.setTextDirection(View.TEXT_DIRECTION_INHERIT);
    }

    views.nameView.setText(nameText);

    if (isVoicemail) {
      int relevantLinkTypes = Linkify.EMAIL_ADDRESSES | Linkify.PHONE_NUMBERS | Linkify.WEB_URLS;
      views.voicemailTranscriptionView.setAutoLinkMask(relevantLinkTypes);

      String transcript = "";
      String branding = "";
      if (!TextUtils.isEmpty(details.transcription)) {
        transcript = details.transcription;

        if (details.transcriptionState == VoicemailCompat.TRANSCRIPTION_AVAILABLE
            || details.transcriptionState == VoicemailCompat.TRANSCRIPTION_AVAILABLE_AND_RATED) {
          branding = resources.getString(R.string.voicemail_transcription_branding_text);
        }
      } else {
        switch (details.transcriptionState) {
          case VoicemailCompat.TRANSCRIPTION_IN_PROGRESS:
            branding = resources.getString(R.string.voicemail_transcription_in_progress);
            break;
          case VoicemailCompat.TRANSCRIPTION_FAILED_NO_SPEECH_DETECTED:
            branding = resources.getString(R.string.voicemail_transcription_failed_no_speech);
            break;
          case VoicemailCompat.TRANSCRIPTION_FAILED_LANGUAGE_NOT_SUPPORTED:
            branding =
                resources.getString(R.string.voicemail_transcription_failed_language_not_supported);
            break;
          case VoicemailCompat.TRANSCRIPTION_FAILED:
            branding = resources.getString(R.string.voicemail_transcription_failed);
            break;
          default:
            break; // Fall through
        }
      }

      views.voicemailTranscriptionView.setText(transcript);
      views.voicemailTranscriptionBrandingView.setText(branding);

      View ratingView = views.voicemailTranscriptionRatingView;
      if (shouldShowTranscriptionRating(details.transcriptionState, details.accountHandle)) {
        ratingView.setVisibility(View.VISIBLE);
        ratingView
            .findViewById(R.id.voicemail_transcription_rating_good)
            .setOnClickListener(
                view ->
                    recordTranscriptionRating(
                        TranscriptionRatingValue.GOOD_TRANSCRIPTION, details, ratingView));
        ratingView
            .findViewById(R.id.voicemail_transcription_rating_bad)
            .setOnClickListener(
                view ->
                    recordTranscriptionRating(
                        TranscriptionRatingValue.BAD_TRANSCRIPTION, details, ratingView));
      } else {
        ratingView.setVisibility(View.GONE);
      }
    }

    // Bold if not read
    Typeface typeface = details.isRead ? Typeface.SANS_SERIF : Typeface.DEFAULT_BOLD;
    views.nameView.setTypeface(typeface);
    views.voicemailTranscriptionView.setTypeface(typeface);
    views.voicemailTranscriptionBrandingView.setTypeface(typeface);
    views.callLocationAndDate.setTypeface(typeface);
    views.callLocationAndDate.setTextColor(
        ContextCompat.getColor(
            context,
            details.isRead ? R.color.call_log_detail_color : R.color.call_log_unread_text_color));
  }

  private boolean shouldShowTranscriptionRating(
      int transcriptionState, PhoneAccountHandle account) {
    if (transcriptionState != VoicemailCompat.TRANSCRIPTION_AVAILABLE) {
      return false;
    }

    VoicemailClient client = VoicemailComponent.get(context).getVoicemailClient();
    if (client.isVoicemailDonationEnabled(context, account)) {
      return true;
    }

    // Also show the rating option if voicemail transcription is available (but not enabled)
    // and the donation promo has not yet been shown.
    if (client.isVoicemailDonationAvailable(context) && !hasSeenVoicemailDonationPromo(context)) {
      return true;
    }

    return false;
  }

  private void recordTranscriptionRating(
      TranscriptionRatingValue ratingValue, PhoneCallDetails details, View ratingView) {
    LogUtil.enterBlock("PhoneCallDetailsHelper.recordTranscriptionRating");

    if (shouldShowVoicemailDonationPromo(context)) {
      showVoicemailDonationPromo(ratingValue, details, ratingView);
    } else {
      TranscriptionRatingHelper.sendRating(
          context,
          ratingValue,
          Uri.parse(details.voicemailUri),
          this::onRatingSuccess,
          this::onRatingFailure);
    }
  }

  static boolean shouldShowVoicemailDonationPromo(Context context) {
    VoicemailClient client = VoicemailComponent.get(context).getVoicemailClient();
    return client.isVoicemailTranscriptionAvailable(context)
        && client.isVoicemailDonationAvailable(context)
        && !hasSeenVoicemailDonationPromo(context);
  }

  static boolean hasSeenVoicemailDonationPromo(Context context) {
    return StorageComponent.get(context.getApplicationContext())
        .unencryptedSharedPrefs()
        .getBoolean(PREF_VOICEMAIL_DONATION_PROMO_SHOWN_KEY, false);
  }

  private void showVoicemailDonationPromo(
      TranscriptionRatingValue ratingValue, PhoneCallDetails details, View ratingView) {
    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setMessage(getVoicemailDonationPromoContent());
    builder.setPositiveButton(
        R.string.voicemail_donation_promo_opt_in,
        new DialogInterface.OnClickListener() {
          @Override
          public void onClick(final DialogInterface dialog, final int button) {
            LogUtil.i("PhoneCallDetailsHelper.showVoicemailDonationPromo", "onClick");
            dialog.cancel();
            recordPromoShown(context);
            VoicemailComponent.get(context)
                .getVoicemailClient()
                .setVoicemailDonationEnabled(context, details.accountHandle, true);
            TranscriptionRatingHelper.sendRating(
                context,
                ratingValue,
                Uri.parse(details.voicemailUri),
                PhoneCallDetailsHelper.this::onRatingSuccess,
                PhoneCallDetailsHelper.this::onRatingFailure);
            ratingView.setVisibility(View.GONE);
          }
        });
    builder.setNegativeButton(
        R.string.voicemail_donation_promo_opt_out,
        new DialogInterface.OnClickListener() {
          @Override
          public void onClick(final DialogInterface dialog, final int button) {
            dialog.cancel();
            recordPromoShown(context);
            ratingView.setVisibility(View.GONE);
          }
        });
    builder.setCancelable(true);
    AlertDialog dialog = builder.create();

    // Use a custom title to prevent truncation, sigh
    TextView title = new TextView(context);
    title.setText(R.string.voicemail_donation_promo_title);

    title.setTypeface(Typeface.create("sans-serif-medium", Typeface.NORMAL));
    title.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
    title.setTextColor(ContextCompat.getColor(context, R.color.dialer_primary_text_color));
    title.setPadding(
        dpsToPixels(context, 24), /* left */
        dpsToPixels(context, 10), /* top */
        dpsToPixels(context, 24), /* right */
        dpsToPixels(context, 0)); /* bottom */
    dialog.setCustomTitle(title);

    dialog.show();

    // Make the message link clickable and adjust the appearance of the message and buttons
    TextView textView = (TextView) dialog.findViewById(android.R.id.message);
    textView.setLineSpacing(0, 1.2f);
    textView.setMovementMethod(LinkMovementMethod.getInstance());
    Button positiveButton = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
    if (positiveButton != null) {
      positiveButton.setTextColor(
          context
              .getResources()
              .getColor(R.color.voicemail_donation_promo_positive_button_text_color));
    }
    Button negativeButton = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
    if (negativeButton != null) {
      negativeButton.setTextColor(
          context
              .getResources()
              .getColor(R.color.voicemail_donation_promo_negative_button_text_color));
    }
  }

  private static int dpsToPixels(Context context, int dps) {
    return (int)
        (TypedValue.applyDimension(
            TypedValue.COMPLEX_UNIT_DIP, dps, context.getResources().getDisplayMetrics()));
  }

  private static void recordPromoShown(Context context) {
    StorageComponent.get(context.getApplicationContext())
        .unencryptedSharedPrefs()
        .edit()
        .putBoolean(PREF_VOICEMAIL_DONATION_PROMO_SHOWN_KEY, true)
        .apply();
  }

  private SpannableString getVoicemailDonationPromoContent() {
    CharSequence content = context.getString(R.string.voicemail_donation_promo_content);
    CharSequence learnMore = context.getString(R.string.voicemail_donation_promo_learn_more);
    String learnMoreUrl = context.getString(R.string.voicemail_donation_promo_learn_more_url);
    SpannableString span = new SpannableString(content + " " + learnMore);
    int end = span.length();
    int start = end - learnMore.length();
    span.setSpan(new URLSpan(learnMoreUrl), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    span.setSpan(
        new TextAppearanceSpan(context, R.style.PromoLinkStyle),
        start,
        end,
        Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    return span;
  }

  @Override
  public void onRatingSuccess(Uri voicemailUri) {
    LogUtil.enterBlock("PhoneCallDetailsHelper.onRatingSuccess");
    Toast toast =
        Toast.makeText(context, R.string.voicemail_transcription_rating_thanks, Toast.LENGTH_LONG);
    toast.setGravity(Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, 50);
    toast.show();
  }

  @Override
  public void onRatingFailure(Throwable t) {
    LogUtil.e("PhoneCallDetailsHelper.onRatingFailure", "failed to send rating", t);
  }

  /**
   * Builds a string containing the call location and date. For voicemail logs only the call date is
   * returned because location information is displayed in the call action button
   *
   * @param details The call details.
   * @return The call location and date string.
   */
  public CharSequence getCallLocationAndDate(PhoneCallDetails details) {
    descriptionItems.clear();

    if (details.callTypes[0] != Calls.VOICEMAIL_TYPE) {
      // Get type of call (ie mobile, home, etc) if known, or the caller's location.
      CharSequence callTypeOrLocation = getCallTypeOrLocation(details);

      // Only add the call type or location if its not empty.  It will be empty for unknown
      // callers.
      if (!TextUtils.isEmpty(callTypeOrLocation)) {
        descriptionItems.add(callTypeOrLocation);
      }
    }

    // The date of this call
    descriptionItems.add(getCallDate(details));

    // Create a comma separated list from the call type or location, and call date.
    return DialerUtils.join(descriptionItems);
  }

  /**
   * For a call, if there is an associated contact for the caller, return the known call type (e.g.
   * mobile, home, work). If there is no associated contact, attempt to use the caller's location if
   * known.
   *
   * @param details Call details to use.
   * @return Type of call (mobile/home) if known, or the location of the caller (if known).
   */
  public CharSequence getCallTypeOrLocation(PhoneCallDetails details) {
    if (details.isSpam) {
      return resources.getString(R.string.spam_number_call_log_label);
    } else if (details.isBlocked) {
      return resources.getString(R.string.blocked_number_call_log_label);
    }

    CharSequence numberFormattedLabel = null;
    // Only show a label if the number is shown and it is not a SIP address.
    if (!TextUtils.isEmpty(details.number)
        && !PhoneNumberHelper.isUriNumber(details.number.toString())
        && !callLogCache.isVoicemailNumber(details.accountHandle, details.number)) {

      if (shouldShowLocation(details)) {
        numberFormattedLabel = details.geocode;
      } else if (!(details.numberType == Phone.TYPE_CUSTOM
          && TextUtils.isEmpty(details.numberLabel))) {
        // Get type label only if it will not be "Custom" because of an empty number label.
        numberFormattedLabel =
            phoneTypeLabelForTest != null
                ? phoneTypeLabelForTest
                : Phone.getTypeLabel(resources, details.numberType, details.numberLabel);
      }
    }

    if (!TextUtils.isEmpty(details.namePrimary) && TextUtils.isEmpty(numberFormattedLabel)) {
      numberFormattedLabel = details.displayNumber;
    }
    return numberFormattedLabel;
  }

  /** Returns true if primary name is empty or the data is from Cequint Caller ID. */
  private static boolean shouldShowLocation(PhoneCallDetails details) {
    if (TextUtils.isEmpty(details.geocode)) {
      return false;
    }
    // For caller ID provided by Cequint we want to show the geo location.
    if (details.sourceType == ContactSource.Type.SOURCE_TYPE_CEQUINT_CALLER_ID) {
      return true;
    }
    // Don't bother showing geo location for contacts.
    if (!TextUtils.isEmpty(details.namePrimary)) {
      return false;
    }
    return true;
  }

  public void setPhoneTypeLabelForTest(CharSequence phoneTypeLabel) {
    this.phoneTypeLabelForTest = phoneTypeLabel;
  }

  /**
   * Get the call date/time of the call. For the call log this is relative to the current time. e.g.
   * 3 minutes ago. For voicemail, see {@link #getGranularDateTime(PhoneCallDetails)}
   *
   * @param details Call details to use.
   * @return String representing when the call occurred.
   */
  public CharSequence getCallDate(PhoneCallDetails details) {
    if (details.callTypes[0] == Calls.VOICEMAIL_TYPE) {
      return getGranularDateTime(details);
    }

    return DateUtils.getRelativeTimeSpanString(
        details.date,
        getCurrentTimeMillis(),
        DateUtils.MINUTE_IN_MILLIS,
        DateUtils.FORMAT_ABBREV_RELATIVE);
  }

  /**
   * Get the granular version of the call date/time of the call. The result is always in the form
   * 'DATE at TIME'. The date value changes based on when the call was created.
   *
   * <p>If created today, DATE is 'Today' If created this year, DATE is 'MMM dd' Otherwise, DATE is
   * 'MMM dd, yyyy'
   *
   * <p>TIME is the localized time format, e.g. 'hh:mm a' or 'HH:mm'
   *
   * @param details Call details to use
   * @return String representing when the call occurred
   */
  public CharSequence getGranularDateTime(PhoneCallDetails details) {
    return resources.getString(
        R.string.voicemailCallLogDateTimeFormat,
        getGranularDate(details.date),
        DateUtils.formatDateTime(context, details.date, DateUtils.FORMAT_SHOW_TIME));
  }

  /**
   * Get the granular version of the call date. See {@link #getGranularDateTime(PhoneCallDetails)}
   */
  private String getGranularDate(long date) {
    if (DateUtils.isToday(date)) {
      return resources.getString(R.string.voicemailCallLogToday);
    }
    return DateUtils.formatDateTime(
        context,
        date,
        DateUtils.FORMAT_SHOW_DATE
            | DateUtils.FORMAT_ABBREV_MONTH
            | (shouldShowYear(date) ? DateUtils.FORMAT_SHOW_YEAR : DateUtils.FORMAT_NO_YEAR));
  }

  /**
   * Determines whether the year should be shown for the given date
   *
   * @return {@code true} if date is within the current year, {@code false} otherwise
   */
  private boolean shouldShowYear(long date) {
    calendar.setTimeInMillis(getCurrentTimeMillis());
    int currentYear = calendar.get(Calendar.YEAR);
    calendar.setTimeInMillis(date);
    return currentYear != calendar.get(Calendar.YEAR);
  }

  /** Sets the text of the header view for the details page of a phone call. */
  public void setCallDetailsHeader(TextView nameView, PhoneCallDetails details) {
    final CharSequence nameText;
    if (!TextUtils.isEmpty(details.namePrimary)) {
      nameText = details.namePrimary;
    } else if (!TextUtils.isEmpty(details.displayNumber)) {
      nameText = details.displayNumber;
    } else {
      nameText = resources.getString(R.string.unknown);
    }

    nameView.setText(nameText);
  }

  public void setCurrentTimeForTest(long currentTimeMillis) {
    currentTimeMillisForTest = currentTimeMillis;
  }

  /**
   * Returns the current time in milliseconds since the epoch.
   *
   * <p>It can be injected in tests using {@link #setCurrentTimeForTest(long)}.
   */
  private long getCurrentTimeMillis() {
    if (currentTimeMillisForTest == null) {
      return System.currentTimeMillis();
    } else {
      return currentTimeMillisForTest;
    }
  }

  /** Sets the call count, date, and if it is a voicemail, sets the duration. */
  private void setDetailText(
      PhoneCallDetailsViews views, Integer callCount, PhoneCallDetails details) {
    // Combine the count (if present) and the date.
    CharSequence dateText = details.callLocationAndDate;
    final CharSequence text;
    if (callCount != null) {
      text = resources.getString(R.string.call_log_item_count_and_date, callCount, dateText);
    } else {
      text = dateText;
    }

    if (details.callTypes[0] == Calls.VOICEMAIL_TYPE && details.duration > 0) {
      views.callLocationAndDate.setText(
          resources.getString(
              R.string.voicemailCallLogDateTimeFormatWithDuration,
              text,
              getVoicemailDuration(details)));
    } else {
      views.callLocationAndDate.setText(text);
    }
  }

  private String getVoicemailDuration(PhoneCallDetails details) {
    long minutes = TimeUnit.SECONDS.toMinutes(details.duration);
    long seconds = details.duration - TimeUnit.MINUTES.toSeconds(minutes);
    if (minutes > 99) {
      minutes = 99;
    }
    return resources.getString(R.string.voicemailDurationFormat, minutes, seconds);
  }
}