import Foundation

struct SubBanner: Decodable, Hashable, Identifiable {
    enum Placement: String, Decodable {
        case homeRecommendation = "HOME_RECOMMENDATION"
        case contentRecommendation = "CONTENT_RECOMMENDATION"
    }

    let id: Int
    let placement: Placement
    let imageUrl: String
    let webUrl: String?
    let androidDeepLink: String?
    let iosDeepLink: String?

    var imageURL: URL? { Self.webURL(imageUrl) }
    var webURL: URL? { Self.webURL(webUrl) }
    var iosURL: URL? {
        guard let url = Self.absoluteURL(iosDeepLink),
              let scheme = url.scheme?.lowercased(),
              !["javascript", "data", "file", "content"].contains(scheme) else { return nil }
        return url
    }

    var isEligible: Bool {
        imageURL != nil && (iosURL != nil || webURL != nil)
    }

    private static func absoluteURL(_ raw: String?) -> URL? {
        guard let raw, let url = URL(string: raw),
              url.scheme != nil, url.absoluteString == raw else { return nil }
        return url
    }

    private static func webURL(_ raw: String?) -> URL? {
        guard let url = absoluteURL(raw),
              let scheme = url.scheme?.lowercased(),
              scheme == "http" || scheme == "https",
              let host = url.host, !host.isEmpty else { return nil }
        return url
    }
}