//
// The MIT License (MIT)
//
// Copyright (c) 2015-present Badoo Trading Limited.
//
// 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 protocol LayoutApplicatorProtocol {
    associatedtype View
    associatedtype Layout
    func apply(layout: Layout, to view: View)
}

public typealias AnyLayoutApplicator = BlockLayoutApplicator<Any, Any>
extension BlockLayoutApplicator where View == Any, Layout == Any {
    public init<Base: LayoutApplicatorProtocol>(_ base: Base) {
        self.init { anyLayout, anyView in
            guard let layout = anyLayout as? Base.Layout,
            let view = anyView as? Base.View else {
                fatalError()
            }
            base.apply(layout: layout, to: view)
        }
    }
}

extension BlockLayoutApplicator {
    public static func noop() -> BlockLayoutApplicator<Layout, View> {
        return .init { _, _ in }
    }
}

public struct BlockLayoutApplicator<Layout, View>: LayoutApplicatorProtocol {

    private let block: (Layout, View) -> Void

    public init(_ block: @escaping (Layout, View) -> Void) {
        self.block = block
    }

    public func apply(layout: Layout, to view: View) {
        self.block(layout, view)
    }
}

