-- یک‌بار روی دیتابیس زنده (مثلاً kh_goldarvin) در Navicat اجرا شود.
-- سفارش / کیف / مشتری را پاک نمی‌کند؛ فقط لاگ ورودی مانده و سند.
-- بعد از اجرا دوباره دامپ بگیر؛ حجم باید از حدود ۲۳۰MB به حدود ۱۰–۲۰MB برسد.

-- ایندکس برای حذف سریع
SET @db = DATABASE();
SET @sql = IF(
    (SELECT COUNT(*) FROM information_schema.STATISTICS
        WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'pargar_sync_logs'
          AND INDEX_NAME = 'pargar_sync_logs_type_status_index') = 0
    AND (SELECT COUNT(*) FROM information_schema.TABLES
        WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'pargar_sync_logs') > 0,
    'ALTER TABLE `pargar_sync_logs` ADD INDEX `pargar_sync_logs_type_status_index` (`type`, `sync_status`)',
    'SELECT ''skip pargar_sync_logs_type_status_index'' AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- نگه داشتن ۲۰۰۰ سند ورودی تازه
DELETE FROM `pargar_sync_logs`
WHERE `type` = 'document' AND `sync_status` = 'success'
  AND `id` <= (
    SELECT `cutoff` FROM (
      SELECT `id` AS `cutoff` FROM `pargar_sync_logs`
      WHERE `type` = 'document' AND `sync_status` = 'success'
      ORDER BY `id` DESC
      LIMIT 1 OFFSET 2000
    ) AS `keep`
  );

-- نگه داشتن ۲۰۰۰ مانده تازه
DELETE FROM `pargar_sync_logs`
WHERE `type` = 'mande' AND `sync_status` = 'success'
  AND `id` <= (
    SELECT `cutoff` FROM (
      SELECT `id` AS `cutoff` FROM `pargar_sync_logs`
      WHERE `type` = 'mande' AND `sync_status` = 'success'
      ORDER BY `id` DESC
      LIMIT 1 OFFSET 2000
    ) AS `keep`
  );

-- Event داخل خود MySQL — بدون کرون سیستم (Navicat → Events)
DROP EVENT IF EXISTS `khanegi_prune_pargar_inbound_docs`;
DROP EVENT IF EXISTS `khanegi_prune_pargar_inbound_mande`;

CREATE EVENT `khanegi_prune_pargar_inbound_docs`
ON SCHEDULE EVERY 1 HOUR
STARTS CURRENT_TIMESTAMP
ON COMPLETION PRESERVE
ENABLE
DO
DELETE FROM `pargar_sync_logs`
WHERE `type` = 'document' AND `sync_status` = 'success'
  AND `id` <= (
    SELECT `cutoff` FROM (
      SELECT `id` AS `cutoff` FROM `pargar_sync_logs`
      WHERE `type` = 'document' AND `sync_status` = 'success'
      ORDER BY `id` DESC
      LIMIT 1 OFFSET 2000
    ) AS `keep`
  )
LIMIT 4000;

CREATE EVENT `khanegi_prune_pargar_inbound_mande`
ON SCHEDULE EVERY 1 HOUR
STARTS CURRENT_TIMESTAMP
ON COMPLETION PRESERVE
ENABLE
DO
DELETE FROM `pargar_sync_logs`
WHERE `type` = 'mande' AND `sync_status` = 'success'
  AND `id` <= (
    SELECT `cutoff` FROM (
      SELECT `id` AS `cutoff` FROM `pargar_sync_logs`
      WHERE `type` = 'mande' AND `sync_status` = 'success'
      ORDER BY `id` DESC
      LIMIT 1 OFFSET 2000
    ) AS `keep`
  )
LIMIT 4000;

-- اگر دسترسی SUPER داری:
-- SET GLOBAL event_scheduler = ON;
-- SHOW VARIABLES LIKE 'event_scheduler';
-- SHOW EVENTS;