//
//  Copyright (c) 2023 Touch Instinct
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the Software), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

public typealias DefaultAppFirstRunCheckStorage = BoolValueDefaultsStorage

open class AppInstallLifetimeSingleValueStorage<Storage: SingleValueStorage, AppFirstRunCheckStorage: SingleValueStorage>: SingleValueStorage
where Storage.ErrorType == StorageError,
      AppFirstRunCheckStorage.ErrorType == Storage.ErrorType,
      AppFirstRunCheckStorage.ValueType == Bool {

    public let appFirstRunCheckStorage: AppFirstRunCheckStorage
    public let wrappedStorage: Storage

    public init(storage: Storage,
                appFirstRunCheckStorage: AppFirstRunCheckStorage) {

        self.wrappedStorage = storage
        self.appFirstRunCheckStorage = appFirstRunCheckStorage
    }

    // MARK: - SingleValueStorage

    open func hasStoredValue() -> Bool {
        guard appFirstRunCheckStorage.hasStoredValue() else {
            return false
        }

        return wrappedStorage.hasStoredValue()
    }

    open func getValue() -> Result<Storage.ValueType, Storage.ErrorType> {
        guard hasStoredValue() else {
            return deleteValue()
                .flatMap {
                    appFirstRunCheckStorage.store(value: false)
                }
                .flatMap { .failure(.valueNotFound) }
        }

        return wrappedStorage.getValue()
    }

    open func store(value: Storage.ValueType) -> Result<Void, Storage.ErrorType> {
        wrappedStorage.store(value: value)
            .flatMap {
                appFirstRunCheckStorage.store(value: false)
            }
    }

    public func deleteValue() -> Result<Void, Storage.ErrorType> {
        wrappedStorage.deleteValue()
    }
}

public extension SingleValueStorage {
    func appInstallLifetimeStorage<FirstRunCheckStorage: SingleValueStorage>(appFirstRunCheckStorage: FirstRunCheckStorage) -> AppInstallLifetimeSingleValueStorage<Self, FirstRunCheckStorage>
    where Self.ErrorType == ErrorType,
          FirstRunCheckStorage.ErrorType == ErrorType,
          FirstRunCheckStorage.ValueType == Bool {

        AppInstallLifetimeSingleValueStorage(storage: self,
                                             appFirstRunCheckStorage: appFirstRunCheckStorage)
    }
}