-- Rollback script to undo all SSO integration changes
-- WARNING: This will delete all user data, API keys, and audit logs

-- Drop foreign keys first
ALTER TABLE ticket_comments DROP FOREIGN KEY IF EXISTS fk_comments_user_id;
ALTER TABLE tickets DROP FOREIGN KEY IF EXISTS fk_tickets_created_by;
ALTER TABLE tickets DROP FOREIGN KEY IF EXISTS fk_tickets_updated_by;
ALTER TABLE api_keys DROP FOREIGN KEY IF EXISTS api_keys_ibfk_1;
ALTER TABLE audit_log DROP FOREIGN KEY IF EXISTS audit_log_ibfk_1;

-- Drop columns from existing tables
ALTER TABLE ticket_comments DROP COLUMN IF EXISTS user_id;
ALTER TABLE tickets DROP COLUMN IF EXISTS created_by;
ALTER TABLE tickets DROP COLUMN IF EXISTS updated_by;
ALTER TABLE tickets DROP COLUMN IF EXISTS updated_at;

-- Drop new tables
DROP TABLE IF EXISTS audit_log;
DROP TABLE IF EXISTS api_keys;
DROP TABLE IF EXISTS users;

-- Drop indexes
DROP INDEX IF EXISTS idx_status ON tickets;
DROP INDEX IF EXISTS idx_priority ON tickets;
DROP INDEX IF EXISTS idx_tickets_created_at ON tickets;