From 1ecdb93139ccf9dca793ebdc9380db2ac7db5aad Mon Sep 17 00:00:00 2001
From: Alex Ning <chineseperson5@gmail.com>
Date: Tue, 9 Mar 2021 23:20:06 +0800
Subject: [PATCH] Fix crash when subscribing in anonymous mode.

---
 .../infinityforreddit/account/AccountDao.java         |  3 +++
 .../subreddit/SubredditSubscription.java              | 11 +++++++++++
 2 files changed, 14 insertions(+)

diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/account/AccountDao.java b/app/src/main/java/ml/docilealligator/infinityforreddit/account/AccountDao.java
index d2895479..fcd824a1 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/account/AccountDao.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/account/AccountDao.java
@@ -13,6 +13,9 @@ public interface AccountDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     void insert(Account account);
 
+    @Query("SELECT EXISTS (SELECT 1 FROM accounts WHERE username = '-')")
+    boolean isAnonymousAccountInserted();
+
     @Query("SELECT * FROM accounts WHERE username != '-'")
     List<Account> getAllAccounts();
 
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/subreddit/SubredditSubscription.java b/app/src/main/java/ml/docilealligator/infinityforreddit/subreddit/SubredditSubscription.java
index eab9957d..296e319b 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/subreddit/SubredditSubscription.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/subreddit/SubredditSubscription.java
@@ -9,6 +9,7 @@ import java.util.Map;
 import java.util.concurrent.Executor;
 
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+import ml.docilealligator.infinityforreddit.account.Account;
 import ml.docilealligator.infinityforreddit.apis.RedditAPI;
 import ml.docilealligator.infinityforreddit.subscribedsubreddit.SubscribedSubredditData;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
@@ -127,6 +128,11 @@ public class SubredditSubscription {
         executor.execute(() -> {
             SubscribedSubredditData subscribedSubredditData = new SubscribedSubredditData(subredditData.getId(), subredditData.getName(),
                     subredditData.getIconUrl(), accountName, false);
+            if (accountName.equals("-")) {
+                if (!redditDataRoomDatabase.accountDao().isAnonymousAccountInserted()) {
+                    redditDataRoomDatabase.accountDao().insert(new Account("-", null, null, null, null, null, 0, false));
+                }
+            }
             redditDataRoomDatabase.subscribedSubredditDao().insert(subscribedSubredditData);
             handler.post(subredditSubscriptionListener::onSubredditSubscriptionSuccess);
         });
@@ -137,6 +143,11 @@ public class SubredditSubscription {
                                            String subredditName, String accountName,
                                            SubredditSubscriptionListener subredditSubscriptionListener) {
         executor.execute(() -> {
+            if (accountName.equals("-")) {
+                if (!redditDataRoomDatabase.accountDao().isAnonymousAccountInserted()) {
+                    redditDataRoomDatabase.accountDao().insert(new Account("-", null, null, null, null, null, 0, false));
+                }
+            }
             redditDataRoomDatabase.subscribedSubredditDao().deleteSubscribedSubreddit(subredditName, accountName);
             handler.post(subredditSubscriptionListener::onSubredditSubscriptionSuccess);
         });