From b38edd75f5142da515e46dbbc667162186a77653 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Thu, 17 Feb 2022 10:17:14 +0300
Subject: Do not allow to delete Telegram when it is the only social account

---
 src/main/java/com/juick/service/UserService.java      | 2 ++
 src/main/java/com/juick/service/UserServiceImpl.java  | 6 ++++++
 src/main/java/com/juick/www/controllers/Settings.java | 4 +++-
 src/main/resources/templates/views/settings_main.html | 2 +-
 src/test/java/com/juick/server/tests/ServerTests.java | 5 +++++
 5 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/juick/service/UserService.java b/src/main/java/com/juick/service/UserService.java
index c0428169..06637aee 100644
--- a/src/main/java/com/juick/service/UserService.java
+++ b/src/main/java/com/juick/service/UserService.java
@@ -185,4 +185,6 @@ public interface UserService {
     String getJIDByHash(String hash);
 
     boolean setJIDUser(String hash, int uid);
+
+    boolean canDeleteTelegramUser(User user);
 }
diff --git a/src/main/java/com/juick/service/UserServiceImpl.java b/src/main/java/com/juick/service/UserServiceImpl.java
index e73f4ea3..fd42048c 100644
--- a/src/main/java/com/juick/service/UserServiceImpl.java
+++ b/src/main/java/com/juick/service/UserServiceImpl.java
@@ -914,4 +914,10 @@ public class UserServiceImpl extends BaseJdbcService implements UserService {
     public boolean setJIDUser(String hash, int uid) {
         return getJdbcTemplate().update("UPDATE jids SET user_id=?,loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
     }
+
+    @Transactional(readOnly = true)
+    @Override
+    public boolean canDeleteTelegramUser(User user) {
+        return getEmails(user).size() > 0 || getFbCrossPostStatus(user.getUid()).isConnected() || getVkTokens(user.getUid()).isPresent();
+    }
 }
diff --git a/src/main/java/com/juick/www/controllers/Settings.java b/src/main/java/com/juick/www/controllers/Settings.java
index 8fefadc2..1dc5f1c3 100644
--- a/src/main/java/com/juick/www/controllers/Settings.java
+++ b/src/main/java/com/juick/www/controllers/Settings.java
@@ -248,7 +248,9 @@ public class Settings {
                 result = "<p><a href=\"/settings\">Back</a></p>";
                 break;
             case "telegram-del":
-                telegramService.deleteTelegramUser(visitor.getUid());
+                if (userService.canDeleteTelegramUser(visitor)) {
+                    telegramService.deleteTelegramUser(visitor.getUid());
+                }
                 result = "<p><a href=\"/settings\">Back</a></p>";
                 break;
             case "facebook-disable":
diff --git a/src/main/resources/templates/views/settings_main.html b/src/main/resources/templates/views/settings_main.html
index a6cca7a3..678d4c6f 100644
--- a/src/main/resources/templates/views/settings_main.html
+++ b/src/main/resources/templates/views/settings_main.html
@@ -24,7 +24,7 @@
         <form action="/settings" method="post">
             <div>Telegram: <b>{{ telegram_name }}</b> &mdash;
                 <input type="hidden" name="page" value="telegram-del"/>
-                <input type="submit" value="  Disable  " class="Button" />
+                <input type="submit" value="  Disable  " {% if not beans.userServiceImpl.canDeleteTelegramUser(visitor) %}disabled="disabled"{% endif %} class="Button" />
             </div>
         </form>
         {% else %}
diff --git a/src/test/java/com/juick/server/tests/ServerTests.java b/src/test/java/com/juick/server/tests/ServerTests.java
index 1ef8fe7f..df247b66 100644
--- a/src/test/java/com/juick/server/tests/ServerTests.java
+++ b/src/test/java/com/juick/server/tests/ServerTests.java
@@ -2160,8 +2160,13 @@ public class ServerTests {
     @Test
     public void verifiedUsersTest() {
         assertThat(userService.getUserByName("ugnich").isVerified(), is(false));
+        jdbcTemplate.update("INSERT INTO telegram(user_id, tg_id) VALUES(?, ?)", ugnich.getUid(), "100001866137681");
+        assertThat(userService.canDeleteTelegramUser(userService.getUserByName("ugnich")), is(false));
         jdbcTemplate.update("INSERT INTO facebook(user_id, fb_id) VALUES(?, ?)", ugnich.getUid(), "100001866137681");
         assertThat(userService.getUserByName("ugnich").isVerified(), is(true));
+        assertThat(userService.canDeleteTelegramUser(userService.getUserByName("ugnich")), is(true));
+        jdbcTemplate.update("DELETE FROM facebook");
+        assertThat(userService.canDeleteTelegramUser(userService.getUserByName("ugnich")), is(false));
     }
 
     @Test
-- 
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