//
//  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 Foundation
import enum WebKit.WKNavigationActionPolicy

open class RegexNavigationPolicy: AlwaysAllowNavigationPolicy {

    public var regex: NSRegularExpression

    // MARK: - Init

    public init(regex: NSRegularExpression) {
        self.regex = regex

        super.init()
    }

    public convenience init?(stringRegex: String) {
        guard let regex = try? NSRegularExpression(pattern: stringRegex) else {
            return nil
        }

        self.init(regex: regex)
    }

    // MARK: - NavigationPolicy

    open override func policy(for url: URL) -> WKNavigationActionPolicy {
        url.matches(regex) ? .allow : .cancel
    }
}