//
// 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 JellyfinAPI
import SwiftUI

extension VideoPlayer.Overlay {

    struct ChapterTrack: View {

        @EnvironmentObject
        private var viewModel: VideoPlayerViewModel

        @State
        private var width: CGFloat = 0

        private func maxWidth(for chapter: ChapterInfo.FullInfo) -> CGFloat {
            width * CGFloat(chapter.secondsRange.count) / CGFloat(viewModel.item.runTimeSeconds)
        }

        var body: some View {
            HStack(spacing: 0) {
                ForEach(viewModel.chapters, id: \.self) { chapter in
                    HStack(spacing: 0) {
                        if chapter != viewModel.chapters.first {
                            Color.clear
                                .frame(width: 1.5)
                        }

                        Color.white
                    }
                    .frame(maxWidth: maxWidth(for: chapter))
                }
            }
            .frame(maxWidth: .infinity)
            .onSizeChanged { newSize in
                width = newSize.width
            }
        }
    }
}