Added local contacts

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

@@ -0,0 +1,58 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail 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.
+
+    FairEmail 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 FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2019 by Marcel Bokhorst (M66B)
+*/
+
+import android.database.Cursor;
+
+import java.util.List;
+
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.Query;
+import androidx.room.Update;
+
+@Dao
+public interface DaoContact {
+    @Query("SELECT * FROM contact")
+    List<EntityContact> getContacts();
+
+    @Query("SELECT *" +
+            " FROM contact" +
+            " WHERE email = :email" +
+            " AND (:type IS NULL OR type = :type)")
+    List<EntityContact> getContacts(Integer type, String email);
+
+    @Query("SELECT id AS _id, name, email" +
+            ", CASE type" +
+            "  WHEN " + EntityContact.TYPE_TO + " THEN '>'" +
+            "  WHEN " + EntityContact.TYPE_FROM + " THEN '<'" +
+            "  ELSE '?'" +
+            " END AS type" +
+            " FROM contact" +
+            " WHERE name LIKE :name" +
+            " AND (:type IS NULL OR type = :type)")
+    Cursor searchContacts(Integer type, String name);
+
+    @Insert
+    long insertContact(EntityContact contact);
+
+    @Update
+    int updateContact(EntityContact contact);
+}