//
// Swiftfin is subject to the terms of the Mozilla Public
// License, v2.0. If a copy of the MPL was not distributed with this
// file, you can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2024 Jellyfin & Jellyfin Contributors
//

import SwiftUI

struct Backport<Content> {

    let content: Content
}

extension Backport where Content: View {

    @ViewBuilder
    func lineLimit(_ limit: Int, reservesSpace: Bool = false) -> some View {
        if #available(iOS 16, tvOS 16, *) {
            content
                .lineLimit(limit, reservesSpace: reservesSpace)
        } else {
            ZStack(alignment: .top) {
                Text(String(repeating: "\n", count: limit - 1))

                content
                    .lineLimit(limit)
            }
        }
    }

    #if os(iOS)

    // TODO: - remove comment when migrated away from Stinsen
    //
    // This doesn't seem to work on device, but does in the simulator.
    // It is assumed that because Stinsen adds a lot of views that the
    // PreferencesView isn't in the right place in the VC chain so that
    // it can apply the settings, even SwiftUI's deferment.
    @available(iOS 15.0, *)
    @ViewBuilder
    func defersSystemGestures(on edges: Edge.Set) -> some View {
        if #available(iOS 16, *) {
            content
                .defersSystemGestures(on: edges)
        } else {
            content
                .preferredScreenEdgesDeferringSystemGestures(edges.asUIRectEdge)
        }
    }

    @ViewBuilder
    func persistentSystemOverlays(_ visibility: Visibility) -> some View {
        if #available(iOS 16, *) {
            content
                .persistentSystemOverlays(visibility)
        } else {
            content
                .prefersHomeIndicatorAutoHidden(visibility == .hidden ? true : false)
        }
    }
    #endif
}