Auto-create account in both MySQL and PG

src/main/java/service/AccountService.java

@@ -0,0 +1,44 @@
+package service;
+
+import database.account.Account;
+import database.account.AccountRepository;
+import lombok.extern.slf4j.Slf4j;
+import tools.BCrypt;
+
+import java.time.LocalDate;
+import java.util.Optional;
+
+@Slf4j
+public class AccountService {
+    private static final int PASSWORD_HASH_SALT_LOG_ROUNDS = 12;
+    private static final LocalDate GMS_RELEASE = LocalDate.of(2005, 5, 11);
+
+    private final AccountRepository accountRepository;
+
+    public AccountService(AccountRepository accountRepository) {
+        this.accountRepository = accountRepository;
+    }
+
+    public int createNew(String name, String password) {
+        Account newAccount = Account.builder()
+                .name(name)
+                .password(hashPassword(password))
+                .birthdate(GMS_RELEASE)
+                .build();
+
+        Integer accountId;
+        try {
+            accountId = accountRepository.insert(newAccount);
+        } catch (Exception e) {
+            log.error("Failed to create new account", e);
+            throw new RuntimeException("Failed to create new account");
+        }
+
+        return Optional.ofNullable(accountId)
+                .orElseThrow(() -> new RuntimeException("Failed to create new account - missing id"));
+    }
+
+    private String hashPassword(String password) {
+        return BCrypt.hashpw(password, BCrypt.gensalt(PASSWORD_HASH_SALT_LOG_ROUNDS));
+    }
+}