//
// Copyright 2019, 2021, Optimizely, Inc. and contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

import Foundation

/// Simple DataStore using key value.  This abstracts away the datastore layer. The datastore should take into account synchronization.
public protocol OPTDataStore {
    
    /// getItem - get an item by key.
    /// - Parameter forKey: key to lookup datastore value.
    /// - Returns: the value saved or nil
    func getItem(forKey: String) -> Any?
    /// saveItem - save the item to the datastore.
    /// - Parameter forKey: key to save value
    /// - Parameter value: value to save.
    func saveItem(forKey: String, value: Any)
    /// removeItem - remove the item to the datastore.
    /// - Parameter forKey: key to save value
    func removeItem(forKey: String)
}
