1 files changed, 71 insertions, 0 deletions
diff --git a/src/main/java/com/juick/service/MessengerServiceImpl.java b/src/main/java/com/juick/service/MessengerServiceImpl.java
new file mode 100644
index 00000000..57101ffe
--- /dev/null
+++ b/src/main/java/com/juick/service/MessengerServiceImpl.java
@@ -0,0 +1,71 @@
+package com.juick.service;
+
+import com.juick.User;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+@Repository
+public class MessengerServiceImpl extends BaseJdbcService implements MessengerService {
+
+    @Transactional(readOnly = true)
+    @Override
+    public Integer getUserId(String senderId) {
+        List<Integer> list = getJdbcTemplate().queryForList(
+                "SELECT id FROM users INNER JOIN messenger " +
+                        "ON messenger.user_id = users.id WHERE messenger.sender_id=?", Integer.class, senderId);
+
+        return list.isEmpty() ? 0 : list.get(0);
+    }
+    @Transactional(readOnly = true)
+    @Override
+    public Optional<String> getSenderId(User user) {
+        List<String> list = getJdbcTemplate().queryForList(
+                "SELECT sender_id FROM messenger " +
+                        "WHERE user_id=?", String.class, user.getUid());
+
+        return list.isEmpty() ? Optional.empty() : Optional.of(list.get(0));
+    }
+
+    @Transactional
+    @Override
+    public boolean createMessengerUser(String senderId, String displayName) {
+        return getJdbcTemplate().update(
+                "INSERT INTO messenger(sender_id, display_name, loginhash) VALUES(?,?,?)",
+                senderId, displayName, UUID.randomUUID().toString()) > 0;
+    }
+    @Transactional(readOnly = true)
+    @Override
+    public String getDisplayName(String hash) {
+        try {
+            return getJdbcTemplate().queryForObject("SELECT display_name FROM messenger WHERE loginhash=?", String.class, hash);
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+    @Transactional
+    @Override
+    public String getSignUpHash(final String senderId, final String username) {
+        List<String> list = getJdbcTemplate().queryForList(
+                "SELECT loginhash FROM messenger WHERE sender_id = ? AND user_id IS NULL",
+                String.class,
+                senderId);
+
+        if (list.isEmpty()) {
+            String hash = UUID.randomUUID().toString();
+            getJdbcTemplate().update(
+                    "INSERT INTO messenger(sender_id, loginhash, display_name) VALUES (?, ?, ?)", senderId, hash, username);
+            return hash;
+        }
+        return list.get(0);
+    }
+    @Transactional
+    @Override
+    public boolean linkMessengerUser(String hash, int uid) {
+        return getJdbcTemplate().update("UPDATE messenger SET user_id=?, loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
+    }
+}