Full search on device

app/src/main/java/eu/faircode/email/DaoFolder.java

@@ -51,9 +51,9 @@ public interface DaoFolder {
 
     @Query("SELECT folder.* FROM folder" +
             " JOIN account ON account.id = folder.account" +
-            " WHERE ((:folder IS NULL AND unified) OR (NOT :folder is NULL AND folder.id = :folder))" +
+            " WHERE folder.id = :folder" +
             " AND (:search OR (account.synchronize AND account.browse))")
-    List<EntityFolder> getBrowsableFolders(Long folder, boolean search);
+    EntityFolder getBrowsableFolder(long folder, boolean search);
 
     @Query("SELECT folder.*, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +

app/src/main/java/eu/faircode/email/DaoMessage.java

@@ -56,7 +56,7 @@ public interface DaoMessage {
             ", SUM(CASE WHEN folder.type = '" + EntityFolder.DRAFTS + "' THEN 1 ELSE 0 END) AS drafts" +
             ", 0 AS duplicate" +
             ", COUNT(DISTINCT message.msgid) AS visible" +
-            ", MAX(CASE WHEN folder.unified THEN message.received ELSE 0 END) AS dummy" +
+            ", MAX(CASE WHEN :found OR folder.unified THEN message.received ELSE 0 END) AS dummy" +
             " FROM message" +
             " JOIN account ON account.id = message.account" +
             " LEFT JOIN identity ON identity.id = message.identity" +
@@ -66,7 +66,7 @@ public interface DaoMessage {
             " AND (:snoozed OR :found OR ui_snoozed IS NULL)" +
             " AND (NOT :found OR ui_found = :found)" +
             " GROUP BY account.id, CASE WHEN message.thread IS NULL OR NOT :threading THEN message.id ELSE message.thread END" +
-            " HAVING SUM(unified) > 0" +
+            " HAVING :found OR SUM(unified) > 0" +
             " ORDER BY" +
             " CASE WHEN 'sender' = :sort THEN message.sender ELSE '' END," +
             " CASE" +
@@ -175,10 +175,10 @@ public interface DaoMessage {
 
     @Query("SELECT id" +
             " FROM message" +
-            " WHERE folder IN (:folders)" +
+            " WHERE (:folder IS NULL OR folder = :folder)" +
             " AND NOT ui_hide" +
             " ORDER BY message.received DESC")
-    List<Long> getMessageByFolders(List<Long> folders);
+    List<Long> getMessageIdsByFolder(Long folder);
 
     @Query("SELECT *" +
             " FROM message" +

app/src/main/java/eu/faircode/email/ViewModelBrowse.java

@@ -59,7 +59,7 @@ public class ViewModelBrowse extends ViewModel {
 
     private class State {
         private Context context;
-        private long fid;
+        private Long fid;
         private String search;
         private int pageSize;
 
@@ -76,7 +76,7 @@ public class ViewModelBrowse extends ViewModel {
     void set(Context context, long folder, String search, int pageSize) {
         currentState = new State();
         currentState.context = context;
-        currentState.fid = folder;
+        currentState.fid = (folder < 0 ? null : folder);
         currentState.search = search;
         currentState.pageSize = pageSize;
         currentState.index = -1;
@@ -94,21 +94,13 @@ public class ViewModelBrowse extends ViewModel {
             return;
 
         DB db = DB.getInstance(state.context);
-        final List<EntityFolder> folders = db.folder().getBrowsableFolders(
-                state.fid < 0 ? null : state.fid, state.search != null);
-        Log.i("Search fid=" + (state.fid < 0 ? null : state.fid) + " search=" + (state.search == null) + " count=" + folders.size());
-        if (folders.size() == 0)
-            return;
 
         if (state.search != null)
             try {
                 db.beginTransaction();
 
                 if (state.messages == null) {
-                    List<Long> fids = new ArrayList<>();
+                    state.messages = db.message().getMessageIdsByFolder(state.fid);
-                    for (EntityFolder folder : folders)
-                        fids.add(folder.id);
-                    state.messages = db.message().getMessageByFolders(fids);
                     Log.i("Messages=" + state.messages.size());
                 }
 
@@ -153,10 +145,13 @@ public class ViewModelBrowse extends ViewModel {
                 db.endTransaction();
             }
 
-        if (folders.size() > 1)
+        if (state.fid == null)
+            return;
+
+        final EntityFolder folder = db.folder().getBrowsableFolder(state.fid, state.search != null);
+        if (folder == null)
             return;
 
-        final EntityFolder folder = folders.get(0);
         if (state.imessages == null) {
             EntityAccount account = db.account().getAccount(folder.account);