/*******************************************************************************
* This file is part of RedReader.
*
* RedReader is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RedReader is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RedReader. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package org.quantumbadger.redreader.reddit.url;
import android.content.Context;
import android.net.Uri;
import android.support.annotation.Nullable;
import org.quantumbadger.redreader.R;
import org.quantumbadger.redreader.common.Constants;
import org.quantumbadger.redreader.common.General;
import org.quantumbadger.redreader.reddit.PostSort;
import org.quantumbadger.redreader.reddit.things.RedditSubreddit;
import java.util.ArrayList;
import java.util.List;
public class SubredditPostListURL extends PostListingURL {
public static SubredditPostListURL getFrontPage() {
return new SubredditPostListURL(Type.FRONTPAGE, null, null, null, null, null);
}
public static SubredditPostListURL getAll() {
return new SubredditPostListURL(Type.ALL, null, null, null, null, null);
}
public static RedditURLParser.RedditURL getSubreddit(String subreddit) throws RedditSubreddit.InvalidSubredditNameException {
Uri.Builder builder = new Uri.Builder();
builder.scheme(Constants.Reddit.getScheme()).authority(Constants.Reddit.getDomain());
builder.encodedPath("/r/");
builder.appendPath(RedditSubreddit.stripRPrefix(subreddit));
return RedditURLParser.parse(builder.build());
}
public enum Type {
FRONTPAGE, ALL, SUBREDDIT, SUBREDDIT_COMBINATION, ALL_SUBTRACTION, POPULAR
}
public final Type type;
public final String subreddit;
@Nullable public final PostSort order;
@Nullable public final Integer limit;
@Nullable public final String before, after;
private SubredditPostListURL(
Type type,
String subreddit,
@Nullable PostSort order,
@Nullable Integer limit,
@Nullable String before,
@Nullable String after) {
this.type = type;
this.subreddit = subreddit;
this.order = order;
this.limit = limit;
this.before = before;
this.after = after;
}
public SubredditPostListURL after(String newAfter) {
return new SubredditPostListURL(type, subreddit, order, limit, before, newAfter);
}
public SubredditPostListURL limit(Integer newLimit) {
return new SubredditPostListURL(type, subreddit, order, newLimit, before, after);
}
public SubredditPostListURL sort(PostSort newOrder) {
return new SubredditPostListURL(type, subreddit, newOrder, limit, before, after);
}
public PostSort getOrder() {
return order;
}
@Override
public Uri generateJsonUri() {
Uri.Builder builder = new Uri.Builder();
builder.scheme(Constants.Reddit.getScheme()).authority(Constants.Reddit.getDomain());
switch(type) {
case FRONTPAGE:
builder.encodedPath("/");
break;
case ALL:
builder.encodedPath("/r/all");
break;
case SUBREDDIT:
case SUBREDDIT_COMBINATION:
case ALL_SUBTRACTION:
builder.encodedPath("/r/");
builder.appendPath(subreddit);
break;
case POPULAR:
builder.encodedPath("/r/popular");
break;
}
if(order != null) {
order.addToSubredditListingUri(builder);
}
if(before != null) {
builder.appendQueryParameter("before", before);
}
if(after != null) {
builder.appendQueryParameter("after", after);
}
if(limit != null) {
builder.appendQueryParameter("limit", String.valueOf(limit));
}
builder.appendEncodedPath(".json");
return builder.build();
}
@Override
public @RedditURLParser.PathType int pathType() {
return RedditURLParser.SUBREDDIT_POST_LISTING_URL;
}
public static SubredditPostListURL parse(final Uri uri) {
Integer limit = null;
String before = null, after = null;
for(final String parameterKey : General.getUriQueryParameterNames(uri)) {
if(parameterKey.equalsIgnoreCase("after")) {
after = uri.getQueryParameter(parameterKey);
} else if(parameterKey.equalsIgnoreCase("before")) {
before = uri.getQueryParameter(parameterKey);
} else if(parameterKey.equalsIgnoreCase("limit")) {
try {
limit = Integer.parseInt(uri.getQueryParameter(parameterKey));
} catch(Throwable ignored) {}
}
}
final String[] pathSegments;
{
final List<String> pathSegmentsList = uri.getPathSegments();
final ArrayList<String> pathSegmentsFiltered = new ArrayList<>(pathSegmentsList.size());
for(String segment : pathSegmentsList) {
while(General.asciiLowercase(segment).endsWith(".json") || General.asciiLowercase(segment).endsWith(".xml")) {
segment = segment.substring(0, segment.lastIndexOf('.'));
}
if(segment.length() > 0) {
pathSegmentsFiltered.add(segment);
}
}
pathSegments = pathSegmentsFiltered.toArray(new String[pathSegmentsFiltered.size()]);
}
final PostSort order;
if(pathSegments.length > 0) {
order = PostSort.parse(pathSegments[pathSegments.length - 1], uri.getQueryParameter("t"));
} else {
order = null;
}
switch(pathSegments.length) {
case 0:
return new SubredditPostListURL(Type.FRONTPAGE, null, null, limit, before, after);
case 1: {
if(order != null) {
return new SubredditPostListURL(Type.FRONTPAGE, null, order, limit, before, after);
} else {
return null;
}
}
case 2:
case 3: {
if(!pathSegments[0].equals("r")) return null;
final String subreddit = pathSegments[1];
if(subreddit.equals("all")) {
if(pathSegments.length == 2) {
return new SubredditPostListURL(Type.ALL, null, null, limit, before, after);
} else if(order != null) {
return new SubredditPostListURL(Type.ALL, null, order, limit, before, after);
} else {
return null;
}
} else if(subreddit.equals("popular")) {
return new SubredditPostListURL(Type.POPULAR, null, order, limit, before, after);
} else if(subreddit.matches("all(\\-[\\w\\.]+)+")) {
if(pathSegments.length == 2) {
return new SubredditPostListURL(Type.ALL_SUBTRACTION, subreddit, null, limit, before, after);
} else if(order != null) {
return new SubredditPostListURL(Type.ALL_SUBTRACTION, subreddit, order, limit, before, after);
} else {
return null;
}
} else if(subreddit.matches("\\w+(\\+[\\w\\.]+)+")) {
if(pathSegments.length == 2) {
return new SubredditPostListURL(Type.SUBREDDIT_COMBINATION, subreddit, null, limit, before, after);
} else if(order != null) {
return new SubredditPostListURL(Type.SUBREDDIT_COMBINATION, subreddit, order, limit, before, after);
} else {
return null;
}
} else if(subreddit.matches("[\\w\\.]+")) {
if(pathSegments.length == 2) {
return new SubredditPostListURL(Type.SUBREDDIT, subreddit, null, limit, before, after);
} else if(order != null) {
return new SubredditPostListURL(Type.SUBREDDIT, subreddit, order, limit, before, after);
} else {
return null;
}
} else {
return null;
}
}
default:
return null;
}
}
@Override
public String humanReadablePath() {
String path = super.humanReadablePath();
if(order == null) {
return path;
}
switch(order) {
case TOP_HOUR:
case TOP_DAY:
case TOP_WEEK:
case TOP_MONTH:
case TOP_YEAR:
case TOP_ALL:
return path + "?t=" + General.asciiLowercase(order.name().split("_")[1]);
default:
return path;
}
}
@Override
public String humanReadableName(Context context, boolean shorter) {
switch(type) {
case FRONTPAGE:
return context.getString(R.string.mainmenu_frontpage);
case ALL:
return context.getString(R.string.mainmenu_all);
case POPULAR:
return context.getString(R.string.mainmenu_popular);
case SUBREDDIT:
try {
return RedditSubreddit.getCanonicalName(subreddit);
} catch(RedditSubreddit.InvalidSubredditNameException e) {
return subreddit;
}
case SUBREDDIT_COMBINATION:
case ALL_SUBTRACTION:
return subreddit;
default:
return super.humanReadableName(context, shorter);
}
}
}