#if arch(arm64) || arch(x86_64)

import UIKit
import NotificationCenter
import BuildConfig
import WidgetItems
import AppLockState
import SwiftUI
import WidgetKit
import Intents

import OpenSSLEncryptionProvider
import SwiftSignalKit
import Postbox
import TelegramCore
import OpenSSLEncryptionProvider
import WidgetItemsUtils

import GeneratedSources

struct ParsedPeer {
    var accountId: Int64
    var accountPeerId: Int64
    var peer: WidgetDataPeer
}

struct ParsedPeers {
    var peers: [ParsedPeer]
    var updateTimestamp: Int32
}

private extension ParsedPeers {
    init(accountId: Int64, peers: WidgetDataPeers) {
        self.init(peers: peers.peers.map { peer -> ParsedPeer in
            return ParsedPeer(
                accountId: accountId,
                accountPeerId: peers.accountPeerId,
                peer: peer
            )
        }, updateTimestamp: peers.updateTimestamp)
    }
}

private var installedSharedLogger = false

private func setupSharedLogger(rootPath: String, path: String) {
    if !installedSharedLogger {
        installedSharedLogger = true
        Logger.setSharedLogger(Logger(rootPath: rootPath, basePath: path))
    }
}

private let accountAuxiliaryMethods = AccountAuxiliaryMethods(fetchResource: { account, resource, ranges, _ in
    return nil
}, fetchResourceMediaReferenceHash: { resource in
    return .single(nil)
}, prepareSecretThumbnailData: { _ in
    return nil
}, backgroundUpload: { _, _, _ in
    return .single(nil)
})

private func rootPathForBasePath(_ appGroupPath: String) -> String {
    return appGroupPath + "/telegram-data"
}

@available(iOS 14.0, *)
private func getCommonTimeline(friends: [Friend]?, in context: TimelineProviderContext, completion: @escaping (Timeline<SimpleEntry>) -> ()) {
    if context.isPreview {
        completion(Timeline(entries: [SimpleEntry(date: Date(), contents: .preview)], policy: .atEnd))
        return
    }
    
    let currentDate = Date()
    let entryDate = Calendar.current.date(byAdding: .hour, value: 0, to: currentDate)!
    
    guard let appBundleIdentifier = Bundle.main.bundleIdentifier, let lastDotRange = appBundleIdentifier.range(of: ".", options: [.backwards]) else {
        completion(Timeline(entries: [SimpleEntry(date: entryDate, contents: .recent)], policy: .atEnd))
        return
    }
    
    let baseAppBundleId = String(appBundleIdentifier[..<lastDotRange.lowerBound])
    
    let appGroupName = "group.\(baseAppBundleId)"
    let maybeAppGroupUrl = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: appGroupName)
    
    guard let appGroupUrl = maybeAppGroupUrl else {
        completion(Timeline(entries: [SimpleEntry(date: entryDate, contents: .recent)], policy: .atEnd))
        return
    }
    
    let rootPath = rootPathForBasePath(appGroupUrl.path)
    
    TempBox.initializeShared(basePath: rootPath, processType: "widget", launchSpecificId: Int64.random(in: Int64.min ... Int64.max))
    
    let logsPath = rootPath + "/logs/widget-logs"
    let _ = try? FileManager.default.createDirectory(atPath: logsPath, withIntermediateDirectories: true, attributes: nil)
    
    setupSharedLogger(rootPath: logsPath, path: logsPath)
    
    initializeAccountManagement()
    
    let deviceSpecificEncryptionParameters = BuildConfig.deviceSpecificEncryptionParameters(rootPath, baseAppBundleId: baseAppBundleId)
    let encryptionParameters = ValueBoxEncryptionParameters(forceEncryptionIfNoSet: false, key: ValueBoxEncryptionParameters.Key(data: deviceSpecificEncryptionParameters.key)!, salt: ValueBoxEncryptionParameters.Salt(data: deviceSpecificEncryptionParameters.salt)!)
    
    var itemsByAccount: [Int64: [(Int64, Friend)]] = [:]
    var itemOrder: [(Int64, Int64)] = []
    if let friends = friends {
        for item in friends {
            guard let identifier = item.identifier else {
                continue
            }
            guard let index = identifier.firstIndex(of: ":") else {
                continue
            }
            guard let accountId = Int64(identifier[identifier.startIndex ..< index]) else {
                continue
            }
            guard let peerId = Int64(identifier[identifier.index(after: index)...]) else {
                continue
            }
            if itemsByAccount[accountId] == nil {
                itemsByAccount[accountId] = []
            }
            itemsByAccount[accountId]?.append((peerId, item))
            itemOrder.append((accountId, peerId))
        }
    }
    
    var friendsByAccount: [Signal<[ParsedPeer], NoError>] = []
    for (accountId, items) in itemsByAccount {
        friendsByAccount.append(accountTransaction(rootPath: rootPath, id: AccountRecordId(rawValue: accountId), encryptionParameters: encryptionParameters, isReadOnly: true, useCopy: false, transaction: { postbox, transaction -> [ParsedPeer] in
            guard let state = transaction.getState() as? AuthorizedAccountState else {
                return []
            }
            
            var result: [ParsedPeer] = []
            
            for (peerId, _) in items {
                guard let peer = transaction.getPeer(PeerId(peerId)) else {
                    continue
                }
                
                var name: String = ""
                var lastName: String?
                
                if let user = peer as? TelegramUser {
                    if let firstName = user.firstName {
                        name = firstName
                        lastName = user.lastName
                    } else if let lastName = user.lastName {
                        name = lastName
                    } else if let phone = user.phone, !phone.isEmpty {
                        name = phone
                    }
                } else {
                    name = peer.debugDisplayTitle
                }
                
                var badge: WidgetDataPeer.Badge?
                
                if let readState = transaction.getCombinedPeerReadState(peer.id), readState.count > 0 {
                    var isMuted = false
                    if let notificationSettings = transaction.getPeerNotificationSettings(id: peer.id) as? TelegramPeerNotificationSettings {
                        isMuted = notificationSettings.isRemovedFromTotalUnreadCount(default: false)
                    }
                    badge = WidgetDataPeer.Badge(
                        count: Int(readState.count),
                        isMuted: isMuted
                    )
                }
                
                var mappedMessage: WidgetDataPeer.Message?
                if let index = transaction.getTopPeerMessageIndex(peerId: peer.id) {
                    if let message = transaction.getMessage(index.id) {
                        mappedMessage = WidgetDataPeer.Message(accountPeerId: state.peerId, message: EngineMessage(message))
                    }
                }
                
                var isForum = false
                if let peer = peer as? TelegramChannel, peer.flags.contains(.isForum) {
                    isForum = true
                }
                
                let widgetPeer = WidgetDataPeer(id: peer.id.toInt64(), name: name, lastName: lastName, letters: peer.displayLetters, avatarPath: smallestImageRepresentation(peer.profileImageRepresentations).flatMap { representation in
                    return postbox.mediaBox.resourcePath(representation.resource)
                }, badge: badge, message: mappedMessage, isForum: isForum)
                
                result.append(ParsedPeer(accountId: accountId, accountPeerId: state.peerId.toInt64(), peer: widgetPeer))
            }
            
            return result
        })
        |> `catch` { _ -> Signal<[ParsedPeer], NoError> in
            return .single([])
        })
    }
    
    let _ = combineLatest(friendsByAccount).start(next: { allPeers in
        var orderedPeers: [ParsedPeer] = []
        
        outer: for (accountId, peerId) in itemOrder {
            for peerSet in allPeers {
                for peer in peerSet {
                    if peer.accountId == accountId && peer.peer.id == peerId {
                        orderedPeers.append(peer)
                        continue outer
                    }
                }
            }
        }
        
        let result = ParsedPeers(peers: orderedPeers, updateTimestamp: Int32(Date().timeIntervalSince1970))
        completion(Timeline(entries: [SimpleEntry(date: entryDate, contents: .peers(result))], policy: .atEnd))
    })
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct Provider: IntentTimelineProvider {
    public typealias Entry = SimpleEntry
    
    func placeholder(in context: Context) -> SimpleEntry {
        return SimpleEntry(date: Date(), contents: .recent)
    }

    func getSnapshot(for configuration: SelectFriendsIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry = SimpleEntry(date: Date(), contents: context.isPreview ? .preview : .peers(ParsedPeers(accountId: 0, peers: WidgetDataPeers(accountPeerId: 0, peers: [], updateTimestamp: 0))))
        completion(entry)
    }

    func getTimeline(for configuration: SelectFriendsIntent, in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        getCommonTimeline(friends: configuration.friends, in: context, completion: completion)
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct AvatarsProvider: IntentTimelineProvider {
    public typealias Entry = SimpleEntry
    
    func placeholder(in context: Context) -> SimpleEntry {
        return SimpleEntry(date: Date(), contents: .recent)
    }

    func getSnapshot(for configuration: SelectAvatarFriendsIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry = SimpleEntry(date: Date(), contents: context.isPreview ? .preview : .peers(ParsedPeers(accountId: 0, peers: WidgetDataPeers(accountPeerId: 0, peers: [], updateTimestamp: 0))))
        completion(entry)
    }

    func getTimeline(for configuration: SelectAvatarFriendsIntent, in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        getCommonTimeline(friends: configuration.friends, in: context, completion: completion)
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct SimpleEntry: TimelineEntry {
    enum Contents {
        case recent
        case preview
        case peers(ParsedPeers)
    }
    
    let date: Date
    let contents: Contents
}

enum PeersWidgetData {
    case empty
    case preview
    case peers(ParsedPeers)
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct AvatarItemView: View {
    var peer: ParsedPeer?
    var itemSize: CGFloat
    var placeholderColor: Color
    
    var body: some View {
        return ZStack {
            if let peer = peer {
                Image(uiImage: avatarImage(accountPeerId: peer.accountPeerId, peer: peer.peer, size: CGSize(width: itemSize, height: itemSize), style: peer.peer.isForum ? .roundedRect : .round))
                    .mask(peer.peer.isForum ? AnyView(RoundedRectangle(cornerRadius: itemSize * 0.25)) : AnyView(Circle()))
            } else {
                Circle()
                    .fill(placeholderColor)
                    .frame(width: itemSize, height: itemSize)
            }
        }
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct WidgetView: View {
    @Environment(\.widgetFamily) private var widgetFamily
    @Environment(\.colorScheme) private var colorScheme
    let data: PeersWidgetData
    let presentationData: WidgetPresentationData
    
    private func linkForPeer(accountId: Int64, id: Int64) -> String {
        switch self.widgetFamily {
        case .systemSmall:
            return "\(buildConfig.appSpecificUrlScheme)://"
        default:
            return "\(buildConfig.appSpecificUrlScheme)://localpeer?id=\(id)&accountId=\(accountId)"
        }
    }
    
    func chatTopLine(_ content: ChatContent) -> some View {
        let dateText: String
        
        let chatTitle: AnyView
        let date: Text
        var isPlaceholder = false
        
        switch content {
        case let .peer(peer):
            if let message = peer.peer.message {
                dateText = DateFormatter.localizedString(from: Date(timeIntervalSince1970: Double(message.timestamp)), dateStyle: .none, timeStyle: .short)
            } else {
                dateText = ""
            }
            var formattedName = peer.peer.name
            if peer.accountPeerId == peer.peer.id {
                formattedName = self.presentationData.chatSavedMessages
            } else if let lastName = peer.peer.lastName {
                formattedName.append(" \(lastName)")
            }
            chatTitle = AnyView(Text(formattedName)
                .lineLimit(1)
                .font(Font.system(size: 16.0, weight: .medium, design: .default))
                .foregroundColor(.primary))
            date = Text(dateText)
            .font(Font.system(size: 14.0, weight: .regular, design: .default)).foregroundColor(.secondary)
        case let .preview(index):
            let titleText = index == 0 ? "News Channel" : "Duck"
            dateText = index == 0 ? "9:00" : "8:42"
            chatTitle = AnyView(Text(titleText)
                .lineLimit(1)
                .font(Font.system(size: 16.0, weight: .medium, design: .default))
                .foregroundColor(.primary))
            date = Text(dateText)
            .font(Font.system(size: 14.0, weight: .regular, design: .default)).foregroundColor(.secondary)
        case .placeholder:
            isPlaceholder = true
            dateText = "         "
            chatTitle = AnyView(Text(" ").font(Font.system(size: 16.0, weight: .medium, design: .default)).foregroundColor(.primary))
            date = Text(dateText)
            .font(Font.system(size: 16.0, weight: .regular, design: .default)).foregroundColor(.secondary)
        }
        return HStack(alignment: .center, spacing: 0.0, content: {
            if !isPlaceholder {
                chatTitle
            } else {
                chatTitle
                    .frame(minWidth: 48.0)
                    .background(GeometryReader { geometry in
                        RoundedRectangle(cornerRadius: 4.0)
                            .fill(getPlaceholderColor())
                            .frame(width: geometry.size.width, height: 8.0, alignment: .center)
                            .offset(x: 0.0, y: (geometry.size.height - 8.0) / 2.0 + 1.0)
                        }
                    )
            }
            Spacer()
            if !isPlaceholder {
                date
            } else {
                date
                    .background(GeometryReader { geometry in
                        RoundedRectangle(cornerRadius: 4.0)
                            .fill(getPlaceholderColor())
                            .frame(width: geometry.size.width, height: 8.0, alignment: .center)
                            .offset(x: 0.0, y: (geometry.size.height - 8.0) / 2.0)
                        }
                    )
            }
        })
        .padding(0.0)
    }
    
    func chatBottomLine(_ content: ChatContent) -> AnyView {
        var text = ""
        var isPlaceholder = false
        switch content {
        case let .peer(peer):
            if let message = peer.peer.message {
                text = message.text
                switch message.content {
                case .text:
                    break
                case .image:
                    if !message.text.isEmpty {
                        text = "🖼 \(message.text)"
                    } else {
                        text = "🖼 \(self.presentationData.messagePhoto)"
                    }
                case .video:
                    if !message.text.isEmpty {
                        text = "📹 \(message.text)"
                    } else {
                        text = "📹 \(self.presentationData.messageVideo)"
                    }
                case .gif:
                    if !message.text.isEmpty {
                        text = "\(message.text)"
                    } else {
                        text = "\(self.presentationData.messageAnimation)"
                    }
                case let .file(file):
                    if !message.text.isEmpty {
                        text = "📹 \(message.text)"
                    } else {
                        text = "📎 \(file.name)"
                    }
                case let .music(music):
                    if !music.title.isEmpty && !music.artist.isEmpty {
                        text = "\(music.artist) — \(music.title)"
                    } else if !music.title.isEmpty {
                        text = music.title
                    } else if !music.artist.isEmpty {
                        text = music.artist
                    } else {
                        text = "Unknown Artist"
                    }
                case .voiceMessage:
                    text = "🎤 \(self.presentationData.messageVoice)"
                case .videoMessage:
                    text = "\(self.presentationData.messageVideoMessage)"
                case let .sticker(sticker):
                    text = "\(sticker.altText) \(presentationData.messageSticker)"
                case let .call(call):
                    if call.isVideo {
                        text = "\(self.presentationData.messageVideoCall)"
                    } else {
                        text = "\(self.presentationData.messageVoiceCall)"
                    }
                case .mapLocation:
                    text = "\(self.presentationData.messageLocation)"
                case let .game(game):
                    text = "🎮 \(game.title)"
                case let .poll(poll):
                    text = "📊 \(poll.title)"
                case let .autodeleteTimer(value):
                    if value.value != nil {
                        text = self.presentationData.autodeleteTimerUpdated
                    } else {
                        text = self.presentationData.autodeleteTimerRemoved
                    }
                }
                
                if let author = message.author {
                    if author.isMe {
                        text = "\(presentationData.messageAuthorYou): \(text)"
                    } else {
                        text = "\(author.title): \(text)"
                    }
                }
            }
            text += "\n"
        case let .preview(index):
            if index == 0 {
                text = "☀️ 23 °C\n☁️ Passing Clouds"
            } else {
                text = "😂 \(presentationData.messageSticker)"
                text += "\n"
            }
        case .placeholder:
            isPlaceholder = true
        }
        
        let textView = Text(text)
            .lineLimit(2)
            .font(Font.system(size: 15.0, weight: .regular, design: .default))
            .foregroundColor(.secondary)
            .multilineTextAlignment(.leading)
            .padding(0.0)
        
        if !isPlaceholder {
            return AnyView(textView)
        } else {
            return AnyView(
                VStack(alignment: .leading, spacing: 0.0, content: {
                    Text(" ")
                        .lineLimit(1)
                        .font(Font.system(size: 15.0, weight: .regular, design: .default))
                        .foregroundColor(.secondary)
                        .multilineTextAlignment(.leading)
                        .padding(0.0)
                        .frame(minWidth: 182.0)
                    .background(GeometryReader { geometry in
                        RoundedRectangle(cornerRadius: 4.0)
                            .fill(getPlaceholderColor())
                            .frame(width: geometry.size.width, height: 8.0, alignment: .center)
                            .offset(x: 0.0, y: (geometry.size.height - 8.0) / 2.0 - 1.0)
                        }
                    )
                    Text(" ")
                        .lineLimit(1)
                        .font(Font.system(size: 15.0, weight: .regular, design: .default))
                        .foregroundColor(.secondary)
                        .multilineTextAlignment(.leading)
                        .padding(0.0)
                        .frame(minWidth: 96.0)
                    .background(GeometryReader { geometry in
                        RoundedRectangle(cornerRadius: 4.0)
                            .fill(getPlaceholderColor())
                            .frame(width: geometry.size.width, height: 8.0, alignment: .center)
                            .offset(x: 0.0, y: (geometry.size.height - 8.0) / 2.0 - 1.0)
                        }
                    )
                })
            )
        }
    }
    
    enum ChatContent {
        case peer(ParsedPeer)
        case preview(Int)
        case placeholder
    }
    
    func chatContent(_ content: ChatContent) -> some View {
        return VStack(alignment: .leading, spacing: 0.0, content: {
            chatTopLine(content)
            chatBottomLine(content)
        })
    }
    
    func chatContentView(_ index: Int, size: CGSize) -> AnyView {
        let peers: ParsedPeers?
        var isPlaceholder = false
        var isPreview = false
        switch data {
        case let .peers(peersValue):
            if peersValue.peers.count <= index {
                isPlaceholder = peersValue.peers.count != 0
                peers = nil
            } else {
                peers = peersValue
            }
        case .preview:
            peers = nil
            isPreview = true
        default:
            peers = nil
        }
        
        let itemHeight = (size.height - 22.0) / 2.0
        
        if isPlaceholder {
            return AnyView(Spacer()
                .frame(width: size.width, height: itemHeight, alignment: .leading)
            )
        }
        
        if isPreview {
            return AnyView(
                HStack(alignment: .center, spacing: 0.0, content: {
                    Image("Widget/Avatar\(index == 0 ? "Channel" : "1")")
                        .aspectRatio(1.0, contentMode: .fit)
                        .clipShape(Circle())
                        .frame(width: 54.0, height: 54.0, alignment: .leading)
                        .padding(EdgeInsets(top: 0.0, leading: 10.0, bottom: 0.0, trailing: 10.0))
                    chatContent(.preview(index)).frame(maxWidth: .infinity).padding(EdgeInsets(top: 0.0, leading: 0.0, bottom: 0.0, trailing: 10.0))
                })
                .frame(width: size.width, height: itemHeight, alignment: .leading)
            )
        }
        
        let url: URL
        if let peers = peers {
            url = URL(string: linkForPeer(accountId: peers.peers[index].accountId, id: peers.peers[index].peer.id))!
        } else {
            url = URL(string: "\(buildConfig.appSpecificUrlScheme)://")!
        }
        
        let content: ChatContent
        if let peer = peers?.peers[index] {
            content = .peer(peer)
        } else {
            content = .placeholder
        }
        
        let avatarView: AvatarItemView
        avatarView = AvatarItemView(peer: peers?.peers[index], itemSize: 54.0, placeholderColor: getPlaceholderColor())
        
        return AnyView(
            Link(destination: url, label: {
                HStack(alignment: .center, spacing: 0.0, content: {
                    avatarView
                        .frame(width: 54.0, height: 54.0, alignment: .leading)
                        .padding(EdgeInsets(top: 0.0, leading: 10.0, bottom: 0.0, trailing: 10.0))
                    chatContent(content).frame(maxWidth: .infinity).padding(EdgeInsets(top: 0.0, leading: 0.0, bottom: 0.0, trailing: 10.0))
                })
            })
            .frame(width: size.width, height: itemHeight, alignment: .leading)
        )
    }
    
    func chatSeparatorView(size: CGSize) -> some View {
        return HStack(alignment: .center, spacing: 0.0, content: {
            Spacer()
            Rectangle()
                .foregroundColor(getSeparatorColor())
                .frame(width: size.width - 54.0 - 20.0, height: 0.5, alignment: .leading)
        })
        .frame(width: size.width, height: 1.0, alignment: .leading)
    }
    
    func chatsUpdateBackgroundView(size: CGSize) -> some View {
        return Rectangle().foregroundColor(getUpdatedBackgroundColor())
            //.position(x: size.width / 2.0, y: size.height - 11.0)
            .frame(width: size.width, height: 22.0, alignment: .center)
    }
    
    func chatUpdateView(size: CGSize) -> some View {
        return ZStack(alignment: Alignment(horizontal: .center, vertical: .center), content: {
            Rectangle().foregroundColor(getUpdatedBackgroundColor())
            chatsUpdateTimestampView(size: size)
        })
        .frame(width: size.width, height: 22.0 - 1.0, alignment: .center)
    }
    
    func chatsUpdateTimestampView(size: CGSize) -> some View {
        let text: String
        switch data {
        case let .peers(peersValue):
            if peersValue.peers.isEmpty {
                text = self.presentationData.widgetLongTapToEdit
            } else {
                let date = Date(timeIntervalSince1970: Double(peersValue.updateTimestamp))
                let calendar = Calendar.current
                if !calendar.isDate(Date(), inSameDayAs: date) {
                    let formatter = DateFormatter()
                    formatter.dateStyle = .short
                    formatter.timeStyle = .none
                    text = self.presentationData.widgetUpdatedAt.replacingOccurrences(of: "{}", with: formatter.string(from: date))
                } else {
                    let formatter = DateFormatter()
                    formatter.dateStyle = .none
                    formatter.timeStyle = .short
                    text = self.presentationData.widgetUpdatedTodayAt.replacingOccurrences(of: "{}", with: formatter.string(from: date))
                }
            }
        case .preview:
            let date = Date()
            let calendar = Calendar.current
            if !calendar.isDate(Date(), inSameDayAs: date) {
                let formatter = DateFormatter()
                formatter.dateStyle = .short
                formatter.timeStyle = .none
                text = self.presentationData.widgetUpdatedAt.replacingOccurrences(of: "{}", with: formatter.string(from: date))
            } else {
                let formatter = DateFormatter()
                formatter.dateStyle = .none
                formatter.timeStyle = .short
                text = self.presentationData.widgetUpdatedTodayAt.replacingOccurrences(of: "{}", with: formatter.string(from: date))
            }
        default:
            text = self.presentationData.widgetLongTapToEdit
        }
        
        return Text(text)
            .font(Font.system(size: 12.0))
            .foregroundColor(getUpdatedTextColor())
    }
    
    func getBackgroundColor() -> Color {
        switch colorScheme {
        case .light:
            return .white
        case .dark:
            return Color(.sRGB, red: 28.0 / 255.0, green: 28.0 / 255.0, blue: 30.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func getSeparatorColor() -> Color {
        switch colorScheme {
        case .light:
            return Color(.sRGB, red: 216.0 / 255.0, green: 216.0 / 255.0, blue: 216.0 / 255.0, opacity: 1.0)
        case .dark:
            return Color(.sRGB, red: 0.0 / 255.0, green: 0.0 / 255.0, blue: 0.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func getUpdatedBackgroundColor() -> Color {
        switch colorScheme {
        case .light:
            return Color(.sRGB, red: 242.0 / 255.0, green: 242.0 / 255.0, blue: 247.0 / 255.0, opacity: 1.0)
        case .dark:
            return Color(.sRGB, red: 21.0 / 255.0, green: 21.0 / 255.0, blue: 21.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func getUpdatedTextColor() -> Color {
        switch colorScheme {
        case .light:
            return Color(.sRGB, red: 142.0 / 255.0, green: 142.0 / 255.0, blue: 146.0 / 255.0, opacity: 1.0)
        case .dark:
            return Color(.sRGB, red: 142.0 / 255.0, green: 142.0 / 255.0, blue: 146.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func getPlaceholderColor() -> Color {
        switch colorScheme {
        case .light:
            return Color(.sRGB, red: 235.0 / 255.0, green: 235.0 / 255.0, blue: 241.0 / 255.0, opacity: 1.0)
        case .dark:
            return Color(.sRGB, red: 38.0 / 255.0, green: 38.0 / 255.0, blue: 41.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    var body: some View {
        GeometryReader(content: { geometry in
            return VStack(alignment: .center, spacing: 0.0, content: {
                chatContentView(0, size: geometry.size)
                chatSeparatorView(size: geometry.size)
                chatContentView(1, size: geometry.size)
                chatUpdateView(size: geometry.size)
            })
        })
        .padding(0.0)
        .unredacted()
        .widgetBackground(Rectangle().foregroundColor(getBackgroundColor()))
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
extension View {
    func widgetBackground(_ backgroundView: some View) -> some View {
        if #available(iOSApplicationExtension 17.0, iOS 17.0, *) {
            return containerBackground(for: .widget) {
                backgroundView
            }
        } else {
            return background(backgroundView)
        }
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct AvatarsWidgetView: View {
    @Environment(\.widgetFamily) private var widgetFamily
    @Environment(\.colorScheme) private var colorScheme
    let data: PeersWidgetData
    let presentationData: WidgetPresentationData
    
    func placeholder(geometry: GeometryProxy) -> some View {
        return Spacer()
    }
    
    private func linkForPeer(accountId: Int64, id: Int64) -> String {
        switch self.widgetFamily {
        case .systemSmall:
            return "\(buildConfig.appSpecificUrlScheme)://"
        default:
            return "\(buildConfig.appSpecificUrlScheme)://localpeer?id=\(id)&accountId=\(accountId)"
        }
    }
    
    func getPlaceholderColor() -> Color {
        switch colorScheme {
        case .light:
            return Color(.sRGB, red: 235.0 / 255.0, green: 235.0 / 255.0, blue: 241.0 / 255.0, opacity: 1.0)
        case .dark:
            return Color(.sRGB, red: 38.0 / 255.0, green: 38.0 / 255.0, blue: 41.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func getBackgroundColor() -> Color {
        switch colorScheme {
        case .light:
            return .white
        case .dark:
            return Color(.sRGB, red: 28.0 / 255.0, green: 28.0 / 255.0, blue: 30.0 / 255.0, opacity: 1.0)
        @unknown default:
            return .secondary
        }
    }
    
    func itemView(index: Int) -> some View {
        let peers: ParsedPeers?
        var isPlaceholder = false
        var isPreview = false
        switch data {
        case let .peers(peersValue):
            if peersValue.peers.count <= index {
                isPlaceholder = peersValue.peers.count != 0
                peers = nil
            } else {
                peers = peersValue
            }
        case .preview:
            peers = nil
            isPreview = true
        default:
            peers = nil
        }
        
        if let peers = peers {
            return AnyView(Link(destination: URL(string: linkForPeer(accountId: peers.peers[index].accountId, id: peers.peers[index].peer.id))!, label: {
                GeometryReader(content: { geometry in
                    AvatarItemView(peer: peers.peers[index], itemSize: geometry.size.height, placeholderColor: getPlaceholderColor())
                })
            }).aspectRatio(1.0, contentMode: .fit))
        } else if isPlaceholder {
            return AnyView(Circle().aspectRatio(1.0, contentMode: .fit).foregroundColor(getPlaceholderColor()))
        } else if isPreview {
            return AnyView(Image("Widget/Avatar\(index + 1)").aspectRatio(1.0, contentMode: .fit).clipShape(Circle()))
        } else {
            return AnyView(Circle().aspectRatio(1.0, contentMode: .fit).foregroundColor(getPlaceholderColor()))
        }
    }
    
    var body: some View {
        return VStack(alignment: .center, spacing: 18.0, content: {
            HStack(alignment: .center, spacing: nil, content: {
                ForEach(0 ..< 4, id: \.self) { index in
                    itemView(index: index)
                    if index != 3 {
                        Spacer()
                    }
                }
            })
            HStack(alignment: .center, spacing: nil, content: {
                ForEach(0 ..< 4, id: \.self) { index in
                    itemView(index: 4 + index)
                    if index != 3 {
                        Spacer()
                    }
                }
            })
        })
        .padding(EdgeInsets(top: 10.0, leading: 10.0, bottom: 10.0, trailing: 10.0))
        .unredacted()
        .widgetBackground(Rectangle().foregroundColor(getBackgroundColor()))
    }
}

private let buildConfig: BuildConfig = {
    let appBundleIdentifier = Bundle.main.bundleIdentifier!
    guard let lastDotRange = appBundleIdentifier.range(of: ".", options: [.backwards]) else {
        preconditionFailure()
    }
    let baseAppBundleId = String(appBundleIdentifier[..<lastDotRange.lowerBound])
    
    let buildConfig = BuildConfig(baseAppBundleId: baseAppBundleId)
    return buildConfig
}()

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
func getWidgetData(contents: SimpleEntry.Contents) -> PeersWidgetData {
    switch contents {
    case .recent:
        return .empty
    case .preview:
        return .preview
    case let .peers(peers):
        return .peers(peers)
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct Static_Widget: Widget {
    private let kind: String = "Static_Widget"

    public var body: some WidgetConfiguration {
        let presentationData = WidgetPresentationData.getForExtension()
        
        if #available(iOSApplicationExtension 15.0, iOS 15.0, *) {
            return IntentConfiguration(kind: kind, intent: SelectFriendsIntent.self, provider: Provider(), content: { entry in
                WidgetView(data: getWidgetData(contents: entry.contents), presentationData: presentationData)
            })
            .supportedFamilies([.systemMedium])
            .configurationDisplayName(presentationData.widgetChatsGalleryTitle)
            .contentMarginsDisabled()
            .description(presentationData.widgetChatsGalleryDescription)
        } else {
            return IntentConfiguration(kind: kind, intent: SelectFriendsIntent.self, provider: Provider(), content: { entry in
                WidgetView(data: getWidgetData(contents: entry.contents), presentationData: presentationData)
            })
            .supportedFamilies([.systemMedium])
            .configurationDisplayName(presentationData.widgetChatsGalleryTitle)
            .description(presentationData.widgetChatsGalleryDescription)
        }
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct Static_AvatarsWidget: Widget {
    private let kind: String = "Static_AvatarsWidget"

    public var body: some WidgetConfiguration {
        let presentationData = WidgetPresentationData.getForExtension()
        
        if #available(iOSApplicationExtension 15.0, iOS 15.0, *) {
            return IntentConfiguration(kind: kind, intent: SelectAvatarFriendsIntent.self, provider: AvatarsProvider(), content: { entry in
                AvatarsWidgetView(data: getWidgetData(contents: entry.contents), presentationData: presentationData)
            })
            .supportedFamilies([.systemMedium])
            .configurationDisplayName(presentationData.widgetShortcutsGalleryTitle)
            .contentMarginsDisabled()
            .description(presentationData.widgetShortcutsGalleryDescription)
        } else {
            return IntentConfiguration(kind: kind, intent: SelectAvatarFriendsIntent.self, provider: AvatarsProvider(), content: { entry in
                AvatarsWidgetView(data: getWidgetData(contents: entry.contents), presentationData: presentationData)
            })
            .supportedFamilies([.systemMedium])
            .configurationDisplayName(presentationData.widgetShortcutsGalleryTitle)
            .description(presentationData.widgetShortcutsGalleryDescription)
        }
    }
}

@main
struct AllWidgetsEntryPoint {
    static func main() {
        if #available(iOS 14.0, *) {
            AllWidgets.main()
        } else {
            preconditionFailure()
        }
    }
}

@available(iOSApplicationExtension 14.0, iOS 14.0, *)
struct AllWidgets: WidgetBundle {
   var body: some Widget {
        Static_Widget()
        Static_AvatarsWidget()
   }
}

#else

@main
class MyApp {
    static func main() {
        preconditionFailure("Not supported")
    }
}

#endif