PC-1016 Add cleanup task sql script

Plugins/Mineplex.ReportSite/sql/6-cleanup-task.sql

@@ -0,0 +1,52 @@
+-- CASCADE HANDLERS TABLE
+ALTER TABLE Account.reportHandlers DROP FOREIGN KEY reportHandlers_reports_id_fk;
+ALTER TABLE Account.reportHandlers
+  ADD CONSTRAINT reportHandlers_reports_id_fk
+FOREIGN KEY (reportId) REFERENCES reports (id) ON DELETE CASCADE;
+
+-- CASCADE REASONS/REPORTERS TABLE
+ALTER TABLE Account.reportReasons DROP FOREIGN KEY reportReasons_reports_id_fk;
+ALTER TABLE Account.reportReasons
+  ADD CONSTRAINT reportReasons_reports_id_fk
+FOREIGN KEY (reportId) REFERENCES reports (id) ON DELETE CASCADE;
+
+-- CASCADE RESULTS TABLE
+ALTER TABLE Account.reportResults DROP FOREIGN KEY reportResults_reports_id_fk;
+ALTER TABLE Account.reportResults
+  ADD CONSTRAINT reportResults_reports_id_fk
+FOREIGN KEY (reportId) REFERENCES reports (id) ON DELETE CASCADE;
+
+-- CASCADE SNAPSHOT MESSAGE MAP
+ALTER TABLE Account.snapshotMessageMap DROP FOREIGN KEY snapshotMessageMap_snapshots_id_fk;
+ALTER TABLE Account.snapshotMessageMap
+  ADD CONSTRAINT snapshotMessageMap_snapshots_id_fk
+FOREIGN KEY (snapshotId) REFERENCES snapshots (id) ON DELETE CASCADE;
+ALTER TABLE Account.snapshotMessageMap DROP FOREIGN KEY snapshotMessageMap_snapshotMessages_id_fk;
+ALTER TABLE Account.snapshotMessageMap
+  ADD CONSTRAINT snapshotMessageMap_snapshotMessages_id_fk
+FOREIGN KEY (messageId) REFERENCES snapshotMessages (id) ON DELETE CASCADE;
+
+-- CASCADE SNAPSHOT RECIPIENTS TABLE
+ALTER TABLE Account.snapshotRecipients DROP FOREIGN KEY snapshotRecipients_snapshotMessages_id_fk;
+ALTER TABLE Account.snapshotRecipients
+  ADD CONSTRAINT snapshotRecipients_snapshotMessages_id_fk
+FOREIGN KEY (messageId) REFERENCES snapshotMessages (id) ON DELETE CASCADE;
+
+-- CREATE CLEANUP TASK
+DELIMITER //
+
+CREATE EVENT `report_cleanup`
+  ON SCHEDULE EVERY 1 MONTH
+  ON COMPLETION PRESERVE
+DO BEGIN
+  -- DELETE REPORTS (AND ASSOCIATED SNAPSHOT IF ANY) CLOSED > 30 DAYS AGO
+  DELETE reports, snapshots FROM reports, snapshots
+    LEFT JOIN reportResults ON reports.id = reportResults.reportId
+    LEFT JOIN snapshots ON reports.snapshotId = snapshots.id
+  WHERE reportResults.closedTime NOT BETWEEN NOW() - INTERVAL 30 DAY AND NOW();
+
+  -- DELETE ORPHANED SNAPSHOT MESSAGES
+  DELETE snapshotMessages FROM snapshotMessages
+    LEFT JOIN snapshotMessageMap ON snapshotMessages.id = snapshotMessageMap.messageId
+  WHERE snapshotMessageMap.snapshotId IS NULL;
+END//