//
//  Copyright (c) 2022 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.
//

import WebKit

public protocol WebViewModel: WKScriptMessageHandler {
    var injector: WebViewUrlInjector { get }
    var navigator: WebViewNavigator { get }
    var errorHandler: WebViewErrorHandler { get }

    func makeUrlInjection(into webView: WKWebView)
    func shouldNavigate(to url: URL) -> WKNavigationActionPolicy
    func handleError(_ error: Error, url: URL?)
}

public extension WebViewModel {

    func makeUrlInjection(into webView: WKWebView) {
        injector.inject(into: webView)
    }

    func shouldNavigate(to url: URL) -> WKNavigationActionPolicy {
        navigator.shouldNavigate(to: url)
    }

    func handleError(_ error: Error, url: URL?) {
        let errorModel = WebViewLoadingError(sourceURL: url, innerError: error)
        errorHandler.didReceiveError(errorModel)
    }
}