From cc0a29650d3ba9b848a86cce73fbe6e3ff5d8693 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Thu, 19 May 2016 19:46:31 +0300
Subject: telegram: notify subcribed users

---
 src/main/java/com/juick/api/TelegramBotHook.java | 57 ++++++++++++++++--------
 1 file changed, 39 insertions(+), 18 deletions(-)

(limited to 'src')

diff --git a/src/main/java/com/juick/api/TelegramBotHook.java b/src/main/java/com/juick/api/TelegramBotHook.java
index c68d829a..907898f2 100644
--- a/src/main/java/com/juick/api/TelegramBotHook.java
+++ b/src/main/java/com/juick/api/TelegramBotHook.java
@@ -1,5 +1,6 @@
 package com.juick.api;
 
+import com.juick.User;
 import com.juick.json.MessageSerializer;
 import com.juick.server.UserQueries;
 import com.neovisionaries.ws.client.*;
@@ -13,6 +14,7 @@ import com.pengrad.telegrambot.model.request.InlineKeyboardMarkup;
 import com.pengrad.telegrambot.request.SendMessage;
 import com.pengrad.telegrambot.response.SendResponse;
 import org.json.JSONObject;
+import org.springframework.dao.EmptyResultDataAccessException;
 import org.springframework.jdbc.core.JdbcTemplate;
 
 import javax.servlet.http.HttpServletRequest;
@@ -20,6 +22,7 @@ import java.io.BufferedReader;
 import java.io.IOException;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.UUID;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -66,25 +69,12 @@ public class TelegramBotHook {
                         sb.append(jmsg.getAttachmentURL());
                     }
                     String msg = sb.toString();
+                    List<Long> users = getSubscribers(jmsg.getUser().getUID());
                     List<Long> chats = getChats();
-                    chats.stream().forEach(c -> {
-                        bot.execute(new SendMessage(c, msg).replyMarkup(
-                                new InlineKeyboardMarkup(
-                                        new InlineKeyboardButton[] {
-                                                new InlineKeyboardButton("See on Juick").url("https://juick.com/" + jmsg.getMID())
-                                        }
-                                )), new Callback<SendMessage, SendResponse>() {
-                            @Override
-                            public void onResponse(SendMessage request, SendResponse response) {
-                                logger.info("got response: " + response.message().toString());
-                            }
-
-                            @Override
-                            public void onFailure(SendMessage request, IOException e) {
-                                logger.log(Level.WARNING, "telegram failure", e);
-                            }
-                        });
-                    });
+                    // registered subscribed users
+                    users.stream().forEach(c -> telegramNotify(c, msg, jmsg.getMID()));
+                    // anonymous
+                    chats.stream().filter(u -> !getUser(u).isPresent()).forEach(c -> telegramNotify(c, msg, jmsg.getMID()));
                 }
             });
             ws.connect();
@@ -93,6 +83,25 @@ public class TelegramBotHook {
         }
     }
 
+    private void telegramNotify(Long c, String msg, int mid) {
+        bot.execute(new SendMessage(c, msg).replyMarkup(
+                new InlineKeyboardMarkup(
+                        new InlineKeyboardButton[] {
+                                new InlineKeyboardButton("See on Juick").url("https://juick.com/" + mid)
+                        }
+                )), new Callback<SendMessage, SendResponse>() {
+            @Override
+            public void onResponse(SendMessage request, SendResponse response) {
+                logger.info("got response: " + response.message().toString());
+            }
+
+            @Override
+            public void onFailure(SendMessage request, IOException e) {
+                logger.log(Level.WARNING, "telegram failure", e);
+            }
+        });
+    }
+
     List<Long> getChats() {
         return jdbc.queryForList("SELECT chat_id FROM telegram_chats", Long.class);
     }
@@ -135,4 +144,16 @@ public class TelegramBotHook {
         return jdbc.update("INSERT INTO telegram(tg_id, tg_name, loginhash) VALUES(?,?,?)",
                 tgID, tgName, UUID.randomUUID().toString()) > 0;
     }
+    private Optional<User> getUser(long tgId) {
+        try {
+            return Optional.of(jdbc.queryForObject("SELECT id, name, banned FROM users INNER JOIN telegram" +
+                    "ON telegram.user_id = users.id WHERE telegram.tg_id=?", new UserQueries.UserMapper(), tgId));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+    private List<Long> getSubscribers(int uid) {
+        return jdbc.queryForList("SELECT tg_id FROM telegram INNER JOIN subscr_users " +
+                "ON (subscr_users.user_id=? AND telegram.tg_id=subscr_users.suser_id)", Long.class, uid, uid);
+    }
 }
-- 
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