reifydb-catalog 0.4.13

// SPDX-License-Identifier: Apache-2.0
// Copyright (c) 2025 ReifyDB

use reifydb_core::{
	interface::catalog::policy::PolicyId,
	key::{EncodableKey, policy::PolicyKey, policy_op::PolicyOpKey},
};
use reifydb_transaction::transaction::admin::AdminTransaction;

use crate::{CatalogStore, Result};

impl CatalogStore {
	pub(crate) fn drop_policy(txn: &mut AdminTransaction, policy: PolicyId) -> Result<()> {
		// Remove all operation rows for this policy
		{
			let range = PolicyOpKey::policy_scan(policy);
			let mut stream = txn.range(range, 1024)?;
			let mut keys_to_remove = Vec::new();
			for entry in stream.by_ref() {
				let entry = entry?;
				if let Some(key) = PolicyOpKey::decode(&entry.key) {
					keys_to_remove.push(key);
				}
			}
			drop(stream);
			for key in keys_to_remove {
				txn.remove(&PolicyOpKey::encoded(key.policy, key.op_index))?;
			}
		}

		txn.remove(&PolicyKey::encoded(policy))?;
		Ok(())
	}
}

#[cfg(test)]
mod tests {
	use reifydb_core::interface::catalog::policy::{PolicyTargetType, PolicyToCreate};
	use reifydb_engine::test_harness::create_test_admin_transaction;
	use reifydb_transaction::transaction::Transaction;

	use crate::CatalogStore;

	#[test]
	fn test_drop_policy() {
		let mut txn = create_test_admin_transaction();
		let to_create = PolicyToCreate {
			name: Some("test_policy".to_string()),
			target_type: PolicyTargetType::Table,
			target_namespace: None,
			target_shape: None,
			operations: vec![],
		};
		let (def, _) = CatalogStore::create_policy(&mut txn, to_create).unwrap();
		CatalogStore::drop_policy(&mut txn, def.id).unwrap();
		let found = CatalogStore::find_policy(&mut Transaction::Admin(&mut txn), def.id).unwrap();
		assert!(found.is_none());
	}
}