import Foundation
import UIKit
import AsyncDisplayKit
import Display
import Postbox
import TelegramCore
import AccountContext
import LocalizedPeerData
import ContextUI
import ChatListUI
import TelegramPresentationData
import SwiftSignalKit
import ChatControllerInteraction
import ChatMessageItemCommon
import TextFormat

func chatMessageItemLayoutConstants(_ constants: (ChatMessageItemLayoutConstants, ChatMessageItemLayoutConstants), params: ListViewItemLayoutParams, presentationData: ChatPresentationData) -> ChatMessageItemLayoutConstants {
    var result: ChatMessageItemLayoutConstants
    if params.width > 680.0 {
        result = constants.1
    } else {
        result = constants.0
    }
    result.image.defaultCornerRadius = presentationData.chatBubbleCorners.mainRadius
    result.image.mergedCornerRadius = (presentationData.chatBubbleCorners.mergeBubbleCorners && result.image.defaultCornerRadius >= 10.0) ?  presentationData.chatBubbleCorners.auxiliaryRadius : presentationData.chatBubbleCorners.mainRadius
    let minRadius: CGFloat = 4.0
    let maxRadius: CGFloat = 16.0
    let radiusTransition = (presentationData.chatBubbleCorners.mainRadius - minRadius) / (maxRadius - minRadius)
    let minInset: CGFloat = result.text.bubbleInsets.left
    let maxInset: CGFloat = 11.0
    let textInset: CGFloat = min(maxInset, ceil(maxInset * radiusTransition + minInset * (1.0 - radiusTransition)))
    result.text.bubbleInsets.left = textInset
    result.text.bubbleInsets.right = textInset
    result.instantVideo.dimensions = params.width > 320.0 ? constants.1.instantVideo.dimensions : constants.0.instantVideo.dimensions
    return result
}

enum ChatMessageItemBottomNeighbor {
    case none
    case merged(semi: Bool)
}

private let voiceMessageDurationFormatter: DateComponentsFormatter = {
    let formatter = DateComponentsFormatter()
    formatter.unitsStyle = .spellOut
    formatter.allowedUnits = [.minute, .second]
    return formatter
}()

private let musicDurationFormatter: DateComponentsFormatter = {
    let formatter = DateComponentsFormatter()
    formatter.unitsStyle = .spellOut
    formatter.allowedUnits = [.hour, .minute, .second]
    return formatter
}()

private let fileSizeFormatter: ByteCountFormatter = {
    let formatter = ByteCountFormatter()
    formatter.allowsNonnumericFormatting = true
    return formatter
}()

enum ChatMessageAccessibilityCustomActionType {
    case reply
    case options
}

final class ChatMessageAccessibilityCustomAction: UIAccessibilityCustomAction {
    let action: ChatMessageAccessibilityCustomActionType
    
    init(name: String, target: Any?, selector: Selector, action: ChatMessageAccessibilityCustomActionType) {
        self.action = action
        
        super.init(name: name, target: target, selector: selector)
    }
}

final class ChatMessageAccessibilityData {
    let label: String?
    let value: String?
    let hint: String?
    let traits: UIAccessibilityTraits
    let customActions: [ChatMessageAccessibilityCustomAction]?
    let singleUrl: String?
    
    init(item: ChatMessageItem, isSelected: Bool?) {
        var hint: String?
        var traits: UIAccessibilityTraits = []
        var singleUrl: String?
        
        var customActions: [ChatMessageAccessibilityCustomAction] = []
        
        let isIncoming = item.message.effectivelyIncoming(item.context.account.peerId)
        var announceIncomingAuthors = false
        if let peer = item.message.peers[item.message.id.peerId] {
            if peer is TelegramGroup {
                announceIncomingAuthors = true
            } else if let channel = peer as? TelegramChannel, case .group = channel.info {
                announceIncomingAuthors = true
            }
        }
        
        let dataForMessage: (Message, Bool) -> (String, String) = { message, isReply -> (String, String) in
            var label: String = ""
            var value: String = ""
            
            if let chatPeer = message.peers[item.message.id.peerId] {
                let authorName = message.author.flatMap(EnginePeer.init)?.displayTitle(strings: item.presentationData.strings, displayOrder: item.presentationData.nameDisplayOrder)
                
                let (_, _, messageText, _, _) = chatListItemStrings(strings: item.presentationData.strings, nameDisplayOrder: item.presentationData.nameDisplayOrder, dateTimeFormat: item.presentationData.dateTimeFormat, contentSettings: item.context.currentContentSettings.with { $0 }, messages: [EngineMessage(message)], chatPeer: EngineRenderedPeer(peer: EnginePeer(chatPeer)), accountPeerId: item.context.account.peerId)
                
                var text = messageText
                
                loop: for media in message.media {
                    if let _ = media as? TelegramMediaImage {
                        traits.insert(.image)
                        if isIncoming {
                            if announceIncomingAuthors, let authorName = authorName {
                                label = item.presentationData.strings.VoiceOver_Chat_PhotoFrom(authorName).string
                            } else {
                                label = item.presentationData.strings.VoiceOver_Chat_Photo
                            }
                        } else {
                            label = item.presentationData.strings.VoiceOver_Chat_YourPhoto
                        }
                        text = ""
                        if !message.text.isEmpty {
                            text.append("\n")
                            
                            text.append(item.presentationData.strings.VoiceOver_Chat_Caption(message.text).string)
                        }
                    } else if let file = media as? TelegramMediaFile {
                        var isSpecialFile = false
                        
                        let isVideo = file.isInstantVideo
                        
                        for attribute in file.attributes {
                            switch attribute {
                                case let .Sticker(displayText, _, _):
                                    isSpecialFile = true
                                    text = displayText
                                    if file.mimeType == "application/x-tgsticker" {
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_AnimatedStickerFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_AnimatedSticker
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourAnimatedSticker
                                        }
                                    } else {
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_StickerFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_Sticker
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourSticker
                                        }
                                    }
                                case let .Audio(isVoice, duration, title, performer, _):
                                    if isVideo {
                                        continue
                                    }
                                    isSpecialFile = true
                                    if isSelected == nil {
                                        hint = item.presentationData.strings.VoiceOver_Chat_PlayHint
                                    }
                                    traits.insert(.startsMediaSession)
                                    if isVoice {
                                        let durationString = voiceMessageDurationFormatter.string(from: Double(duration)) ?? ""
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_VoiceMessageFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_VoiceMessage
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourVoiceMessage
                                        }
                                        text = item.presentationData.strings.VoiceOver_Chat_Duration(durationString).string
                                    } else {
                                        let durationString = musicDurationFormatter.string(from: Double(duration)) ?? ""
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_MusicFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_Music
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourMusic
                                        }
                                        let performer = performer ?? "Unknown"
                                        let title = title ?? "Unknown"
                                        
                                        text = item.presentationData.strings.VoiceOver_Chat_MusicTitle(title, performer).string
                                        text.append(item.presentationData.strings.VoiceOver_Chat_Duration(durationString).string)
                                    }
                                case let .Video(duration, _, flags, _):
                                    isSpecialFile = true
                                    if isSelected == nil {
                                        hint = item.presentationData.strings.VoiceOver_Chat_PlayHint
                                    }
                                    traits.insert(.startsMediaSession)
                                    let durationString = voiceMessageDurationFormatter.string(from: Double(duration)) ?? ""
                                    if flags.contains(.instantRoundVideo) {
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_VideoMessageFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_VideoMessage
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourVideoMessage
                                        }
                                    } else {
                                        if isIncoming {
                                            if announceIncomingAuthors, let authorName = authorName {
                                                label = item.presentationData.strings.VoiceOver_Chat_VideoFrom(authorName).string
                                            } else {
                                                label = item.presentationData.strings.VoiceOver_Chat_Video
                                            }
                                        } else {
                                            label = item.presentationData.strings.VoiceOver_Chat_YourVideo
                                        }
                                    }
                                    text = item.presentationData.strings.VoiceOver_Chat_Duration(durationString).string
                                default:
                                    break
                            }
                        }
                        if !isSpecialFile {
                            if isSelected == nil {
                                hint = item.presentationData.strings.VoiceOver_Chat_OpenHint
                            }
                            let sizeString = fileSizeFormatter.string(fromByteCount: Int64(file.size ?? 0))
                            if isIncoming {
                                if announceIncomingAuthors, let authorName = authorName {
                                    label = item.presentationData.strings.VoiceOver_Chat_FileFrom(authorName).string
                                } else {
                                    label = item.presentationData.strings.VoiceOver_Chat_File
                                }
                            } else {
                                label = item.presentationData.strings.VoiceOver_Chat_YourFile
                            }
                            text = "\(file.fileName ?? ""). "
                            text.append(item.presentationData.strings.VoiceOver_Chat_Size(sizeString).string)
                        }
                        if !message.text.isEmpty {
                            text.append("\n")
                            text.append(item.presentationData.strings.VoiceOver_Chat_Caption(message.text).string)
                        }
                        break loop
                    } else if let webpage = media as? TelegramMediaWebpage, case let .Loaded(content) = webpage.content {
                        var contentText = item.presentationData.strings.VoiceOver_Chat_PagePreview + ". "
                        if let title = content.title, !title.isEmpty {
                            contentText.append(item.presentationData.strings.VoiceOver_Chat_Title(title).string)
                            contentText.append(". ")
                        }
                        if let text = content.text, !text.isEmpty {
                            contentText.append(text)
                        }
                        text = "\(message.text)\n\(contentText)"
                    } else if let contact = media as? TelegramMediaContact {
                        if isIncoming {
                            if announceIncomingAuthors, let authorName = authorName {
                                label = item.presentationData.strings.VoiceOver_Chat_ContactFrom(authorName).string
                            } else {
                                label = item.presentationData.strings.VoiceOver_Chat_Contact
                            }
                        } else {
                            label = item.presentationData.strings.VoiceOver_Chat_YourContact
                        }
                        var displayName = ""
                        if !contact.firstName.isEmpty {
                            displayName.append(contact.firstName)
                        }
                        if !contact.lastName.isEmpty {
                            if !displayName.isEmpty {
                                displayName.append(" ")
                            }
                            displayName.append(contact.lastName)
                        }
                        var phoneNumbersString = ""
                        var phoneNumberCount = 0
                        var emailAddressesString = ""
                        var emailAddressCount = 0
                        var organizationString = ""
                        if let vCard = contact.vCardData, let vCardData = vCard.data(using: .utf8), let contactData = DeviceContactExtendedData(vcard: vCardData) {
                            if displayName.isEmpty && !contactData.organization.isEmpty {
                                displayName = contactData.organization
                            }
                            if !contactData.basicData.phoneNumbers.isEmpty {
                                for phone in contactData.basicData.phoneNumbers {
                                    if !phoneNumbersString.isEmpty {
                                        phoneNumbersString.append(", ")
                                    }
                                    for c in phone.value {
                                        phoneNumbersString.append(c)
                                        phoneNumbersString.append(" ")
                                    }
                                    phoneNumberCount += 1
                                }
                            } else {
                                for c in contact.phoneNumber {
                                    phoneNumbersString.append(c)
                                    phoneNumbersString.append(" ")
                                }
                                phoneNumberCount += 1
                            }
                            
                            for email in contactData.emailAddresses {
                                if !emailAddressesString.isEmpty {
                                    emailAddressesString.append(", ")
                                }
                                emailAddressesString.append("\(email.value)")
                                emailAddressCount += 1
                            }
                            if !contactData.organization.isEmpty && displayName != contactData.organization {
                                organizationString = contactData.organization
                            }
                        } else {
                            phoneNumbersString.append("\(contact.phoneNumber)")
                        }
                        text = "\(displayName)."
                        if !phoneNumbersString.isEmpty {
                            if phoneNumberCount > 1 {
                                text.append(item.presentationData.strings.VoiceOver_Chat_ContactPhoneNumberCount(Int32(phoneNumberCount)))
                                text.append(": ")
                            } else {
                                text.append(item.presentationData.strings.VoiceOver_Chat_ContactPhoneNumber)
                            }
                            text.append("\(phoneNumbersString). ")
                        }
                        if !emailAddressesString.isEmpty {
                            if emailAddressCount > 1 {
                                text.append(item.presentationData.strings.VoiceOver_Chat_ContactEmailCount(Int32(emailAddressCount)))
                                text.append(": ")
                            } else {
                                text.append(item.presentationData.strings.VoiceOver_Chat_ContactEmail)
                                text.append(": ")
                            }
                            text.append("\(emailAddressesString). ")
                        }
                        if !organizationString.isEmpty {
                            text.append(item.presentationData.strings.VoiceOver_Chat_ContactOrganization(organizationString).string)
                            text.append(".")
                        }
                    } else if let poll = media as? TelegramMediaPoll {
                        if isIncoming {
                            if announceIncomingAuthors, let authorName = authorName {
                                label = item.presentationData.strings.VoiceOver_Chat_AnonymousPollFrom(authorName).string
                            } else {
                                label = item.presentationData.strings.VoiceOver_Chat_AnonymousPoll
                            }
                        } else {
                            label = item.presentationData.strings.VoiceOver_Chat_YourAnonymousPoll
                        }
                        
                        var optionVoterCount: [Int: Int32] = [:]
                        var maxOptionVoterCount: Int32 = 0
                        var totalVoterCount: Int32 = 0
                        let voters: [TelegramMediaPollOptionVoters]?
                        if poll.isClosed {
                            voters = poll.results.voters ?? []
                        } else {
                            voters = poll.results.voters
                        }
                        var selectedOptionId: Data?
                        if let voters = voters, let totalVoters = poll.results.totalVoters {
                            var didVote = false
                            for voter in voters {
                                if voter.selected {
                                    didVote = true
                                    selectedOptionId = voter.opaqueIdentifier
                                }
                            }
                            totalVoterCount = totalVoters
                            if didVote || poll.isClosed {
                                for i in 0 ..< poll.options.count {
                                    inner: for optionVoters in voters {
                                        if optionVoters.opaqueIdentifier == poll.options[i].opaqueIdentifier {
                                            optionVoterCount[i] = optionVoters.count
                                            maxOptionVoterCount = max(maxOptionVoterCount, optionVoters.count)
                                            break inner
                                        }
                                    }
                                }
                            }
                        }
                        
                        var optionVoterCounts: [Int]
                        if totalVoterCount != 0 {
                            optionVoterCounts = countNicePercent(votes: (0 ..< poll.options.count).map({ Int(optionVoterCount[$0] ?? 0) }), total: Int(totalVoterCount))
                        } else {
                            optionVoterCounts = Array(repeating: 0, count: poll.options.count)
                        }
                        
                        text = item.presentationData.strings.VoiceOver_Chat_Title(poll.text).string
                        text.append(". ")
                        
                        text.append(item.presentationData.strings.VoiceOver_Chat_PollOptionCount(Int32(poll.options.count)))
                        text.append(": ")
                        var optionsText = ""
                        for i in 0 ..< poll.options.count {
                            let option = poll.options[i]
                            
                            if !optionsText.isEmpty {
                                optionsText.append(", ")
                            }
                            optionsText.append(option.text)
                            if let selectedOptionId = selectedOptionId, selectedOptionId == option.opaqueIdentifier {
                                optionsText.append(", ")
                                optionsText.append(item.presentationData.strings.VoiceOver_Chat_OptionSelected)
                            }
                            
                            if let _ = optionVoterCount[i] {
                                if maxOptionVoterCount != 0 && totalVoterCount != 0 {
                                    optionsText.append(", \(optionVoterCounts[i])%")
                                }
                            }
                        }
                        text.append("\(optionsText). ")
                        if totalVoterCount != 0 {
                            text.append(item.presentationData.strings.VoiceOver_Chat_PollVotes(Int32(totalVoterCount)))
                        } else {
                            text.append(item.presentationData.strings.VoiceOver_Chat_PollNoVotes)
                        }
                        if poll.isClosed {
                            text.append(item.presentationData.strings.VoiceOver_Chat_PollFinalResults)
                        }
                    }
                }
                
                var result = ""
                
                if let isSelected = isSelected {
                    if isSelected {
                        result += item.presentationData.strings.VoiceOver_Chat_Selected
                        result += "\n"
                    }
                    traits.insert(.startsMediaSession)
                }
                
                result += "\(text)"
                
                let dateString = DateFormatter.localizedString(from: Date(timeIntervalSince1970: Double(message.timestamp)), dateStyle: .medium, timeStyle: .short)
                
                result += "\n\(dateString)"
                if !isIncoming && !isReply {
                    result += "\n"
                    if item.sending {
                        result += item.presentationData.strings.VoiceOver_Chat_Sending
                    } else if item.failed {
                        result += item.presentationData.strings.VoiceOver_Chat_Failed
                    } else {
                        if item.read {
                            if announceIncomingAuthors {
                                result += item.presentationData.strings.VoiceOver_Chat_SeenByRecipients
                            } else {
                                result += item.presentationData.strings.VoiceOver_Chat_SeenByRecipient
                            }
                        }
                        for attribute in message.attributes {
                            if let attribute = attribute as? ConsumableContentMessageAttribute {
                                if !attribute.consumed {
                                    if announceIncomingAuthors {
                                        result += item.presentationData.strings.VoiceOver_Chat_NotPlayedByRecipients
                                    } else {
                                        result += item.presentationData.strings.VoiceOver_Chat_NotPlayedByRecipient
                                    }
                                } else {
                                    if announceIncomingAuthors {
                                        result += item.presentationData.strings.VoiceOver_Chat_PlayedByRecipients
                                    } else {
                                        result += item.presentationData.strings.VoiceOver_Chat_PlayedByRecipient
                                    }
                                }
                            }
                        }
                    }
                }
                value = result
            } else {
                value = ""
            }
            
            if label.isEmpty {
                if let author = message.author {
                    if isIncoming {
                        label = EnginePeer(author).displayTitle(strings: item.presentationData.strings, displayOrder: item.presentationData.nameDisplayOrder)
                    } else {
                        label = item.presentationData.strings.VoiceOver_Chat_YourMessage
                    }
                } else {
                    label = item.presentationData.strings.VoiceOver_Chat_Message
                }
            }
            
            return (label, value)
        }
        
        var (label, value) = dataForMessage(item.message, false)
        var replyValue: String?
        
        for attribute in item.message.attributes {
            if let attribute = attribute as? TextEntitiesMessageAttribute {
                var hasUrls = false
                loop: for entity in attribute.entities {
                    switch entity.type {
                        case .Url:
                            if hasUrls {
                                singleUrl = nil
                                break loop
                            } else {
                                if let range = Range<String.Index>(NSRange(location: entity.range.lowerBound, length: entity.range.count), in: item.message.text) {
                                    singleUrl = String(item.message.text[range])
                                    hasUrls = true
                                }
                            }
                        case let .TextUrl(url):
                            if hasUrls {
                                singleUrl = nil
                                break loop
                            } else {
                                singleUrl = url
                                hasUrls = true
                            }
                        default:
                            break
                    }
                }
            } else if let attribute = attribute as? ReplyMessageAttribute, let replyMessage = item.message.associatedMessages[attribute.messageId] {
                var replyLabel: String
                if replyMessage.flags.contains(.Incoming) {
                    if let author = replyMessage.author {
                        replyLabel = item.presentationData.strings.VoiceOver_Chat_ReplyFrom(EnginePeer(author).displayTitle(strings: item.presentationData.strings, displayOrder: item.presentationData.nameDisplayOrder)).string
                    } else {
                        replyLabel = item.presentationData.strings.VoiceOver_Chat_Reply
                    }
                } else {
                    replyLabel = item.presentationData.strings.VoiceOver_Chat_ReplyToYourMessage
                }
                
                let (_, replyMessageValue) = dataForMessage(replyMessage, true)
                replyValue = replyMessageValue
                
                label = "\(replyLabel) . \(label)"
            }
        }
        
        if hint == nil && singleUrl != nil {
            hint = item.presentationData.strings.VoiceOver_Chat_OpenLinkHint
        }
        
        if let forwardInfo = item.message.forwardInfo {
            let forwardLabel: String
            if let author = forwardInfo.author, author.id == item.context.account.peerId {
                forwardLabel = item.presentationData.strings.VoiceOver_Chat_ForwardedFromYou
            } else {
                let peerString: String
                if let peer = forwardInfo.author {
                    if let authorName = forwardInfo.authorSignature {
                        peerString = "\(EnginePeer(peer).displayTitle(strings: item.presentationData.strings, displayOrder: item.presentationData.nameDisplayOrder)) (\(authorName))"
                    } else {
                        peerString = EnginePeer(peer).displayTitle(strings: item.presentationData.strings, displayOrder: item.presentationData.nameDisplayOrder)
                    }
                } else if let authorName = forwardInfo.authorSignature {
                    peerString = authorName
                } else {
                    peerString = ""
                }
                forwardLabel = item.presentationData.strings.VoiceOver_Chat_ForwardedFrom(peerString).string
            }
            label = "\(forwardLabel). \(label)"
        }
        
        if isSelected == nil {
            var canReply = item.controllerInteraction.canSetupReply(item.message) == .reply
            for media in item.content.firstMessage.media {
                if let _ = media as? TelegramMediaExpiredContent {
                    canReply = false
                }
                else if let media = media as? TelegramMediaAction {
                    if case .phoneCall = media.action {
                    } else {
                        canReply = false
                    }
                }
            }
            
            if canReply {
                customActions.append(ChatMessageAccessibilityCustomAction(name: item.presentationData.strings.VoiceOver_MessageContextReply, target: nil, selector: #selector(self.noop), action: .reply))
            }
            customActions.append(ChatMessageAccessibilityCustomAction(name: item.presentationData.strings.VoiceOver_MessageContextOpenMessageMenu, target: nil, selector: #selector(self.noop), action: .options))
        }
        
        if let replyValue {
            value = "\(value). \(item.presentationData.strings.VoiceOver_Chat_ReplyingToMessage(replyValue).string)"
        }
        
        self.label = label
        self.value = value
        self.hint = hint
        self.traits = traits
        self.customActions = customActions.isEmpty ? nil : customActions
        self.singleUrl = singleUrl
    }
    
    @objc private func noop() {
    }
}

public class ChatMessageItemView: ListViewItemNode, ChatMessageItemNodeProtocol {
    let layoutConstants = (ChatMessageItemLayoutConstants.compact, ChatMessageItemLayoutConstants.regular)
    
    var item: ChatMessageItem?
    var accessibilityData: ChatMessageAccessibilityData?
    var safeInsets = UIEdgeInsets()
    
    var awaitingAppliedReaction: (MessageReaction.Reaction?, () -> Void)?
    
    public required convenience init() {
        self.init(layerBacked: false)
    }
    
    public init(layerBacked: Bool) {
        super.init(layerBacked: layerBacked, dynamicBounce: true, rotated: true)
        self.transform = CATransform3DMakeRotation(CGFloat.pi, 0.0, 0.0, 1.0)
    }

    required public init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override public func reuse() {
        super.reuse()
        
        self.item = nil
        self.frame = CGRect()
    }
    
    func setupItem(_ item: ChatMessageItem, synchronousLoad: Bool) {
        self.item = item
    }
    
    func updateAccessibilityData(_ accessibilityData: ChatMessageAccessibilityData) {
        self.accessibilityData = accessibilityData
    }
    
    override public func layoutForParams(_ params: ListViewItemLayoutParams, item: ListViewItem, previousItem: ListViewItem?, nextItem: ListViewItem?) {
        if let item = item as? ChatMessageItem {
            let doLayout = self.asyncLayout()
            let merged = item.mergedWithItems(top: previousItem, bottom: nextItem)
            let (layout, apply) = doLayout(item, params, merged.top, merged.bottom, merged.dateAtBottom)
            self.contentSize = layout.contentSize
            self.insets = layout.insets
            apply(.None, ListViewItemApply(isOnScreen: false), false)
        }
    }
    
    func cancelInsertionAnimations() {
    }
    
    override public func animateInsertion(_ currentTimestamp: Double, duration: Double, short: Bool) {
        if short {
            //self.layer.animateBoundsOriginYAdditive(from: -self.bounds.size.height, to: 0.0, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring)
        } else {
            self.transitionOffset = -self.bounds.size.height * 1.6
            self.addTransitionOffsetAnimation(0.0, duration: duration, beginAt: currentTimestamp)
        }
    }
    
    func asyncLayout() -> (_ item: ChatMessageItem, _ params: ListViewItemLayoutParams, _ mergedTop: ChatMessageMerge, _ mergedBottom: ChatMessageMerge, _ dateHeaderAtBottom: Bool) -> (ListViewItemNodeLayout, (ListViewItemUpdateAnimation, ListViewItemApply, Bool) -> Void) {
        return { _, _, _, _, _ in
            return (ListViewItemNodeLayout(contentSize: CGSize(width: 32.0, height: 32.0), insets: UIEdgeInsets()), { _, _, _ in
                
            })
        }
    }
    
    func transitionNode(id: MessageId, media: Media, adjustRect: Bool) -> (ASDisplayNode, CGRect, () -> (UIView?, UIView?))? {
        return nil
    }
    
    func getMessageContextSourceNode(stableId: UInt32?) -> ContextExtractedContentContainingNode? {
        return nil
    }
    
    func updateHiddenMedia() {
    }
    
    func updateSelectionState(animated: Bool) {
    }
    
    func updateSearchTextHighlightState() {
    }
    
    func updateHighlightedState(animated: Bool) {
        var isHighlightedInOverlay = false
        if let item = self.item, let contextHighlightedState = item.controllerInteraction.contextHighlightedState {
            switch item.content {
                case let .message(message, _, _, _, _):
                    if contextHighlightedState.messageStableId == message.stableId {
                        isHighlightedInOverlay = true
                    }
                case let .group(messages):
                    for (message, _, _, _, _) in messages {
                        if contextHighlightedState.messageStableId == message.stableId {
                            isHighlightedInOverlay = true
                            break
                        }
                    }
            }
        }
        self.isHighlightedInOverlay = isHighlightedInOverlay
    }
    
    func updateAutomaticMediaDownloadSettings() {
    }
    
    func updateStickerSettings(forceStopAnimations: Bool) {
    }
    
    func playMediaWithSound() -> ((Double?) -> Void, Bool, Bool, Bool, ASDisplayNode?)? {
        return nil
    }
    
    override public func headers() -> [ListViewItemHeader]? {
        if let item = self.item {
            return item.headers
        } else {
            return nil
        }
    }
    
    func performMessageButtonAction(button: ReplyMarkupButton) {
        if let item = self.item {
            switch button.action {
                case .text:
                    item.controllerInteraction.sendMessage(button.title)
                case let .url(url):
                    var concealed = true
                    if url.hasPrefix("tg://") {
                        concealed = false
                    }
                    item.controllerInteraction.openUrl(url, concealed, nil, nil)
                case .requestMap:
                    item.controllerInteraction.shareCurrentLocation()
                case .requestPhone:
                    item.controllerInteraction.shareAccountContact()
                case .openWebApp:
                    item.controllerInteraction.requestMessageActionCallback(item.message.id, nil, true, false)
                case let .callback(requiresPassword, data):
                    item.controllerInteraction.requestMessageActionCallback(item.message.id, data, false, requiresPassword)
                case let .switchInline(samePeer, query, peerTypes):
                    var botPeer: Peer?
                    
                    var found = false
                    for attribute in item.message.attributes {
                        if let attribute = attribute as? InlineBotMessageAttribute {
                            if let peerId = attribute.peerId {
                                botPeer = item.message.peers[peerId]
                                found = true
                            }
                        }
                    }
                    if !found {
                        botPeer = item.message.author
                    }
                    
                    var peerId: PeerId?
                    if samePeer {
                        peerId = item.message.id.peerId
                    }
                    if let botPeer = botPeer, let addressName = botPeer.addressName {
                        item.controllerInteraction.activateSwitchInline(peerId, "@\(addressName) \(query)", peerTypes)
                    }
                case .payment:
                    item.controllerInteraction.openCheckoutOrReceipt(item.message.id)
                case let .urlAuth(url, buttonId):
                    item.controllerInteraction.requestMessageActionUrlAuth(url, .message(id: item.message.id, buttonId: buttonId))
                case .setupPoll:
                    break
                case let .openUserProfile(peerId):
                    let _ = (item.context.engine.data.get(TelegramEngine.EngineData.Item.Peer.Peer(id: peerId))
                    |> deliverOnMainQueue).startStandalone(next: { peer in
                        if let peer = peer {
                            item.controllerInteraction.openPeer(peer, .info, nil, .default)
                        }
                    })
                case let .openWebView(url, simple):
                    item.controllerInteraction.openWebView(button.title, url, simple, .generic)
                case .requestPeer:
                    break
            }
        }
    }
    
    func presentMessageButtonContextMenu(button: ReplyMarkupButton) {
        if let item = self.item {
            switch button.action {
                case let .url(url):
                    item.controllerInteraction.longTap(.url(url), item.message)
                default:
                    break
            }
        }
    }
    
    func openMessageContextMenu() {
    }
    
    public func targetReactionView(value: MessageReaction.Reaction) -> UIView? {
        return nil
    }
    
    public func targetForStoryTransition(id: StoryId) -> UIView? {
        return nil
    }
    
    func getStatusNode() -> ASDisplayNode? {
        return nil
    }

    private var attachedAvatarNodeOffset: CGFloat = 0.0

    override public func attachedHeaderNodesUpdated() {
        if !self.attachedAvatarNodeOffset.isZero {
            self.updateAttachedAvatarNodeOffset(offset: self.attachedAvatarNodeOffset, transition: .immediate)
        } else {
            for headerNode in self.attachedHeaderNodes {
                if let headerNode = headerNode as? ChatMessageAvatarHeaderNode {
                    headerNode.updateSelectionState(animated: false)
                }
            }
        }
    }

    func updateAttachedAvatarNodeOffset(offset: CGFloat, transition: ContainedViewLayoutTransition) {
        self.attachedAvatarNodeOffset = offset
        for headerNode in self.attachedHeaderNodes {
            if let headerNode = headerNode as? ChatMessageAvatarHeaderNode {
                transition.updateSublayerTransformOffset(layer: headerNode.layer, offset: CGPoint(x: offset, y: 0.0))
            }
        }
    }
    
    func unreadMessageRangeUpdated() {
    }
    
    public func contentFrame() -> CGRect {
        return self.bounds
    }
}