implemented new DB core, referal system

src/main/resources/application.yml

@@ -46,6 +46,12 @@ app:
       # Maximum number of batches to process per cleanup run
       max-batches-per-run: ${APP_SESSION_CLEANUP_MAX_BATCHES:20}
 
+# GeoIP configuration
+# Set GEOIP_DB_PATH environment variable to use external file (recommended for production)
+# If not set, falls back to classpath:geoip/GeoLite2-Country.mmdb
+geoip:
+  db-path: ${GEOIP_DB_PATH:}
+
 logging:
   level:
     root: INFO

src/main/resources/db/migration/V3__replace_users_with_sharded_tables.sql

@@ -0,0 +1,107 @@
+-- Drop foreign key constraint from sessions table if it exists
+-- Find the foreign key name dynamically (MySQL auto-generates names like sessions_ibfk_1)
+SET @fk_name = NULL;
+SELECT CONSTRAINT_NAME INTO @fk_name
+FROM information_schema.TABLE_CONSTRAINTS
+WHERE CONSTRAINT_SCHEMA = DATABASE()
+AND TABLE_NAME = 'sessions'
+AND CONSTRAINT_TYPE = 'FOREIGN KEY'
+LIMIT 1;
+
+SET @sql = IF(@fk_name IS NOT NULL,
+    CONCAT('ALTER TABLE sessions DROP FOREIGN KEY ', @fk_name),
+    'DO 1');
+
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- Drop old users table
+DROP TABLE IF EXISTS users;
+
+-- Create db_users_a table
+CREATE TABLE `db_users_a` (
+  `id` int NOT NULL,
+  `screen_name` varchar(75) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL DEFAULT '-',
+  `telegram_id` bigint UNSIGNED DEFAULT NULL,
+  `telegram_name` varchar(33) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL DEFAULT '-',
+  `is_premium` int NOT NULL DEFAULT '0',
+  `language_code` varchar(2) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL DEFAULT 'XX',
+  `country_code` varchar(2) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL DEFAULT 'XX',
+  `device_code` varchar(5) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL DEFAULT 'XX',
+  `ip` varbinary(16) DEFAULT NULL,
+  `date_reg` int NOT NULL DEFAULT '0',
+  `date_login` int NOT NULL DEFAULT '0',
+  `banned` int NOT NULL DEFAULT '0'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+-- Create db_users_b table
+CREATE TABLE `db_users_b` (
+  `id` int NOT NULL DEFAULT '0',
+  `balance_a` bigint UNSIGNED NOT NULL DEFAULT '0',
+  `balance_b` bigint UNSIGNED NOT NULL DEFAULT '0',
+  `deposit_total` bigint NOT NULL DEFAULT '0',
+  `deposit_count` int NOT NULL DEFAULT '0',
+  `withdraw_total` bigint NOT NULL DEFAULT '0',
+  `withdraw_count` int NOT NULL DEFAULT '0'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+-- Create db_users_d table
+CREATE TABLE `db_users_d` (
+  `id` int NOT NULL DEFAULT '0',
+  `referer_id_1` int NOT NULL DEFAULT '0',
+  `referer_id_2` int NOT NULL DEFAULT '0',
+  `referer_id_3` int NOT NULL DEFAULT '0',
+  `referer_id_4` int NOT NULL DEFAULT '0',
+  `referer_id_5` int NOT NULL DEFAULT '0',
+  `master_id` int NOT NULL DEFAULT '0',
+  `referals_1` int NOT NULL DEFAULT '0',
+  `referals_2` int NOT NULL DEFAULT '0',
+  `referals_3` int NOT NULL DEFAULT '0',
+  `referals_4` int NOT NULL DEFAULT '0',
+  `referals_5` int NOT NULL DEFAULT '0',
+  `from_referals_1` bigint NOT NULL DEFAULT '0',
+  `from_referals_2` bigint NOT NULL DEFAULT '0',
+  `from_referals_3` bigint NOT NULL DEFAULT '0',
+  `from_referals_4` bigint NOT NULL DEFAULT '0',
+  `from_referals_5` bigint NOT NULL DEFAULT '0',
+  `to_referer_1` bigint NOT NULL DEFAULT '0',
+  `to_referer_2` bigint NOT NULL DEFAULT '0',
+  `to_referer_3` bigint NOT NULL DEFAULT '0',
+  `to_referer_4` bigint NOT NULL DEFAULT '0',
+  `to_referer_5` bigint NOT NULL DEFAULT '0'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+-- Add indexes for db_users_a
+ALTER TABLE `db_users_a`
+  ADD PRIMARY KEY (`id`),
+  ADD UNIQUE KEY `telegram_id` (`telegram_id`),
+  ADD KEY `telegram_name` (`telegram_name`),
+  ADD KEY `ip` (`ip`);
+
+-- Add indexes for db_users_b
+ALTER TABLE `db_users_b`
+  ADD KEY `id` (`id`);
+
+-- Add indexes for db_users_d
+ALTER TABLE `db_users_d`
+  ADD KEY `id` (`id`),
+  ADD KEY `referer_id_1` (`referer_id_1`),
+  ADD KEY `referer_id_2` (`referer_id_2`),
+  ADD KEY `referer_id_3` (`referer_id_3`),
+  ADD KEY `referer_id_4` (`referer_id_4`),
+  ADD KEY `referer_id_5` (`referer_id_5`),
+  ADD KEY `master_id` (`master_id`);
+
+-- Set auto increment for db_users_a
+ALTER TABLE `db_users_a`
+  MODIFY `id` int NOT NULL AUTO_INCREMENT;
+
+-- Update sessions table: change user_id from BIGINT to INT to match db_users_a.id
+ALTER TABLE `sessions`
+  MODIFY `user_id` int NOT NULL;
+
+-- Add foreign key constraint from sessions to db_users_a
+ALTER TABLE `sessions`
+  ADD CONSTRAINT `fk_sessions_user_id` FOREIGN KEY (`user_id`) REFERENCES `db_users_a`(`id`) ON DELETE CASCADE;
+