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/*
* 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.tv.parental;
import android.content.Context;
import android.media.tv.TvContentRating;
import android.media.tv.TvContentRatingSystemInfo;
import android.media.tv.TvInputManager;
import android.support.annotation.Nullable;
import android.text.TextUtils;
import com.android.tv.R;
import com.android.tv.parental.ContentRatingSystem.Rating;
import com.android.tv.parental.ContentRatingSystem.SubRating;
import java.util.ArrayList;
import java.util.List;
public class ContentRatingsManager {
private final List<ContentRatingSystem> mContentRatingSystems = new ArrayList<>();
private final Context mContext;
public ContentRatingsManager(Context context) {
mContext = context;
}
public void update() {
mContentRatingSystems.clear();
TvInputManager manager =
(TvInputManager) mContext.getSystemService(Context.TV_INPUT_SERVICE);
ContentRatingsParser parser = new ContentRatingsParser(mContext);
List<TvContentRatingSystemInfo> infos = manager.getTvContentRatingSystemList();
for (TvContentRatingSystemInfo info : infos) {
List<ContentRatingSystem> list = parser.parse(info);
if (list != null) {
mContentRatingSystems.addAll(list);
}
}
}
/**
* Returns the content rating system with the give ID.
*/
@Nullable
public ContentRatingSystem getContentRatingSystem(String contentRatingSystemId) {
for (ContentRatingSystem ratingSystem : mContentRatingSystems) {
if (TextUtils.equals(ratingSystem.getId(), contentRatingSystemId)) {
return ratingSystem;
}
}
return null;
}
/**
* Returns a new list of all content rating systems defined.
*/
public List<ContentRatingSystem> getContentRatingSystems() {
return new ArrayList<>(mContentRatingSystems);
}
/**
* Returns the long name of a given content rating including descriptors (sub-ratings) that is
* displayed to the user. For example, "TV-PG (L, S)".
*/
public String getDisplayNameForRating(TvContentRating canonicalRating) {
if (TvContentRating.UNRATED.equals(canonicalRating)) {
return mContext.getResources().getString(R.string.unrated_rating_name);
}
Rating rating = getRating(canonicalRating);
if (rating == null) {
return null;
}
List<SubRating> subRatings = getSubRatings(rating, canonicalRating);
if (!subRatings.isEmpty()) {
StringBuilder builder = new StringBuilder();
for (SubRating subRating : subRatings) {
builder.append(subRating.getTitle());
builder.append(", ");
}
return rating.getTitle() + " (" + builder.substring(0, builder.length() - 2) + ")";
}
return rating.getTitle();
}
private Rating getRating(TvContentRating canonicalRating) {
if (canonicalRating == null || mContentRatingSystems == null) {
return null;
}
for (ContentRatingSystem system : mContentRatingSystems) {
if (system.getDomain().equals(canonicalRating.getDomain())
&& system.getName().equals(canonicalRating.getRatingSystem())) {
for (Rating rating : system.getRatings()) {
if (rating.getName().equals(canonicalRating.getMainRating())) {
return rating;
}
}
}
}
return null;
}
private List<SubRating> getSubRatings(Rating rating, TvContentRating canonicalRating) {
List<SubRating> subRatings = new ArrayList<>();
if (rating == null || rating.getSubRatings() == null
|| canonicalRating == null || canonicalRating.getSubRatings() == null) {
return subRatings;
}
for (String subRatingString : canonicalRating.getSubRatings()) {
for (SubRating subRating : rating.getSubRatings()) {
if (subRating.getName().equals(subRatingString)) {
subRatings.add(subRating);
break;
}
}
}
return subRatings;
}
}
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