//
// 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) 2022 Jellyfin & Jellyfin Contributors
//

import JellyfinAPI
import SwiftUI

extension EpisodeItemView {

    struct ContentView: View {

        @EnvironmentObject
        private var itemRouter: ItemCoordinator.Router
        @ObservedObject
        var viewModel: EpisodeItemViewModel

        var body: some View {
            VStack(alignment: .leading, spacing: 10) {

                VStack(alignment: .center) {
                    ImageView(viewModel.item.imageSource(.primary, maxWidth: 600))
                        .frame(maxHeight: 300)
                        .aspectRatio(1.77, contentMode: .fill)
                        .cornerRadius(10)
                        .padding(.horizontal)

                    ShelfView(viewModel: viewModel)
                }

                // MARK: Overview

                if let itemOverview = viewModel.item.overview {
                    TruncatedTextView(text: itemOverview) {
                        itemRouter.route(to: \.itemOverview, viewModel.item)
                    }
                    .font(.footnote)
                    .lineLimit(5)
                    .padding(.horizontal)
                }

                // MARK: Genres

                if let genres = viewModel.item.genreItems, !genres.isEmpty {
                    ItemView.GenresHStack(genres: genres)

                    Divider()
                }

                // MARK: Studios

                if let studios = viewModel.item.studios, !studios.isEmpty {
                    ItemView.StudiosHStack(studios: studios)

                    Divider()
                }

                // MARK: Cast and Crew

                if let castAndCrew = viewModel.item.people?.filter(\.isDisplayed),
                   !castAndCrew.isEmpty
                {
                    ItemView.CastAndCrewHStack(people: castAndCrew)

                    Divider()
                }

                // MARK: Details

                if let informationItems = viewModel.item.createInformationItems(), !informationItems.isEmpty {
                    ListDetailsView(title: L10n.information, items: informationItems)
                        .padding(.horizontal)
                }
            }
        }
    }
}

extension EpisodeItemView.ContentView {

    struct ShelfView: View {

        @EnvironmentObject
        private var itemRouter: ItemCoordinator.Router
        @ObservedObject
        var viewModel: EpisodeItemViewModel

        var body: some View {
            VStack(alignment: .center, spacing: 10) {
                Text(viewModel.item.seriesName ?? .emptyDash)
                    .font(.headline)
                    .fontWeight(.semibold)
                    .multilineTextAlignment(.center)
                    .lineLimit(2)
                    .padding(.horizontal)
                    .foregroundColor(.secondary)

                Text(viewModel.item.displayName)
                    .font(.title2)
                    .fontWeight(.bold)
                    .multilineTextAlignment(.center)
                    .lineLimit(2)
                    .padding(.horizontal)

                DotHStack {
                    if let episodeLocation = viewModel.item.episodeLocator {
                        Text(episodeLocation)
                    }

                    if let productionYear = viewModel.item.premiereDateYear {
                        Text(productionYear)
                    }

                    if let runtime = viewModel.item.getItemRuntime() {
                        Text(runtime)
                    }
                }
                .font(.caption)
                .foregroundColor(.secondary)
                .padding(.horizontal)

                ItemView.AttributesHStack(viewModel: viewModel)

                ItemView.PlayButton(viewModel: viewModel)
                    .frame(maxWidth: 300)
                    .frame(height: 50)

                ItemView.ActionButtonHStack(viewModel: viewModel)
                    .font(.title)
                    .frame(maxWidth: 300)
            }
        }
    }
}