import AVKit
import MapKit
import QuickLook
import SwiftUI

struct ConversationMessageContainer: View {
    let message: Message

    var body: some View {
        // fmodf: for now only text
        Text(message.body)
            .font(.body2)
            .foregroundColor(.Material.Text.main)
            .multilineTextAlignment(.leading)
            .padding(10)

        // if let msgText = message.body, msgText.isLocation {
        //     EmbededMapView(location: msgText.getLatLon)
        // } else if let msgText = message.body, msgText.isContact {
        //     ContactView(message: message)
        // } else if case .attachment(let attachment) = message.contentType {
        //     AttachmentView(message: message, attachment: attachment)
        // } else {
        //     Text(message.body ?? "...")
        //         .font(.body2)
        //         .foregroundColor(.Material.Text.main)
        //         .multilineTextAlignment(.leading)
        //         .padding(10)
        // }
    }
}

struct MessageAttr: View {
    let message: Message

    var body: some View {
        VStack(alignment: .trailing, spacing: 0) {
            HStack(spacing: 2) {
                if !message.isInbound && message.encrypted {
                    Image(systemName: "lock")
                        .font(.sub1)
                        .foregroundColor(.Material.Shape.separator)
                }
                Text(message.timestamp, style: .time)
                    .font(.sub1)
                    .foregroundColor(.Material.Shape.separator)
                if message.isInbound && message.encrypted {
                    Image(systemName: "lock")
                        .font(.sub1)
                        .foregroundColor(.Material.Shape.separator)
                }
            }
            Spacer()

            switch message.status {
            case .sent:
                Image(systemName: "checkmark")
                    .font(.sub1)
                    .foregroundColor(.Material.Shape.separator)

            case .delivered:
                let img = Image(systemName: "checkmark")
                Text("\(img)\(img)")
                    .font(.sub1)
                    .foregroundColor(.Material.Shape.separator)

            case .error:
                Image(systemName: "exclamationmark.circle")
                    .font(.sub1)
                    .foregroundColor(.Rainbow.red500)

            case .pending:
                Image(systemName: "clock")
                    .font(.sub1)
                    .foregroundColor(.Material.Shape.separator)

            default:
                EmptyView()
            }
        }
    }
}

private struct EmbededMapView: View {
    let location: CLLocationCoordinate2D

    var body: some View {
        Map(
            coordinateRegion: .constant(MKCoordinateRegion(center: location, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))),
            interactionModes: [],
            showsUserLocation: false,
            userTrackingMode: .none,
            annotationItems: [location],
            annotationContent: { _ in
                MapMarker(coordinate: location, tint: .blue)
            }
        )
        .frame(width: Const.mapPreviewSize, height: Const.mapPreviewSize)
        .onTapGesture {
            let mapItem = MKMapItem(placemark: MKPlacemark(coordinate: location))
            mapItem.name = "Location"
            mapItem.openInMaps(launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving])
        }
    }
}

private struct ContactView: View {
    // let message: Message

    var body: some View {
        VStack {
            ZStack {
                Circle()
                    .frame(width: 44, height: 44)
                    .foregroundColor(contactName.firstLetterColor)
                Text(contactName.firstLetter)
                    .foregroundColor(.white)
                    .font(.body1)
            }
            // Text(message.body?.getContactJid ?? "...")
            //     .font(.body2)
            //     .foregroundColor(.Material.Text.main)
            //     .multilineTextAlignment(.leading)
        }
        .padding()
        .onTapGesture {
            // TODO: Jump to add roster from here
        }
    }

    private var contactName: String {
        "dumb"
        // message.body?.getContactJid ?? "?"
    }
}

// private struct AttachmentView: View {
//     @EnvironmentObject var attachments: AttachmentsStore
//
//     let message: Message
//     let attachment: Attachment
//
//     var body: some View {
//         if message.status == .error {
//             failed
//         } else {
//             switch attachment.type {
//             case .image:
//                 AsyncImage(url: attachment.thumbnailPath) { image in
//                     image
//                         .resizable()
//                         .aspectRatio(contentMode: .fit)
//                         .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//                 } placeholder: {
//                     placeholder
//                 }
//                 .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//
//             case .video:
//                 if let file = attachment.localPath {
//                     VideoPlayerView(url: file)
//                         .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//                 } else {
//                     placeholder
//                 }
//
//             case .file:
//                 if let file = attachment.localPath {
//                     DocumentPreview(url: file)
//                         .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//                 } else {
//                     placeholder
//                 }
//
//             default:
//                 placeholder
//             }
//         }
//     }
//
//     @ViewBuilder private var placeholder: some View {
//         Rectangle()
//             .foregroundColor(.Material.Background.dark)
//             .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//             .overlay {
//                 ZStack {
//                     ProgressView()
//                         .scaleEffect(1.5)
//                         .progressViewStyle(CircularProgressViewStyle(tint: .Material.Elements.active))
//                     let imageName = progressImageName(attachment.type)
//                     Image(systemName: imageName)
//                         .font(.body1)
//                         .foregroundColor(.Material.Elements.active)
//                 }
//             }
//     }
//
//     @ViewBuilder private var failed: some View {
//         Rectangle()
//             .foregroundColor(.Material.Background.dark)
//             .frame(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
//             .overlay {
//                 ZStack {
//                     VStack {
//                         Text(L10n.Attachment.Downloading.retry)
//                             .font(.body3)
//                             .foregroundColor(.Rainbow.red500)
//                         Image(systemName: "exclamationmark.arrow.triangle.2.circlepath")
//                             .font(.body1)
//                             .foregroundColor(.Rainbow.red500)
//                     }
//                 }
//             }
//             .onTapGesture {
//                 Task {
//                     try? await message.setStatus(.pending)
//                 }
//             }
//     }
//
//     private func progressImageName(_ type: AttachmentType) -> String {
//         switch type {
//         case .image:
//             return "photo"
//
//         case .audio:
//             return "music.note"
//
//         case .video:
//             return "film"
//
//         case .file:
//             return "doc"
//         }
//     }
//
//     private func thumbnail() -> Image? {
//         guard let thumbnailPath = attachment.thumbnailPath else { return nil }
//         guard let uiImage = UIImage(contentsOfFile: thumbnailPath.path()) else { return nil }
//         return Image(uiImage: uiImage)
//     }
// }

// TODO: Make video player better!
private struct VideoPlayerView: UIViewControllerRepresentable {
    let url: URL

    func makeUIViewController(context _: Context) -> AVPlayerViewController {
        let controller = AVPlayerViewController()
        controller.player = AVPlayer(url: url)
        controller.allowsPictureInPicturePlayback = true
        return controller
    }

    func updateUIViewController(_: AVPlayerViewController, context _: Context) {
        // Update the controller if needed.
    }
}

struct DocumentPreview: UIViewControllerRepresentable {
    var url: URL

    func makeUIViewController(context: Context) -> QLPreviewController {
        let controller = QLPreviewController()
        controller.dataSource = context.coordinator
        return controller
    }

    func updateUIViewController(_: QLPreviewController, context _: Context) {
        // Update the controller if needed.
    }

    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }

    class Coordinator: NSObject, QLPreviewControllerDataSource {
        var parent: DocumentPreview

        init(_ parent: DocumentPreview) {
            self.parent = parent
        }

        func numberOfPreviewItems(in _: QLPreviewController) -> Int {
            1
        }

        func previewController(_: QLPreviewController, previewItemAt _: Int) -> QLPreviewItem {
            parent.url as QLPreviewItem
        }
    }
}