import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import AccountContext
import TelegramPresentationData
import ItemListUI
import SolidRoundedButtonNode
import AnimatedAvatarSetNode
import ShimmerEffect
import TelegramCore

private func actionButtonImage(color: UIColor) -> UIImage? {
    return generateImage(CGSize(width: 24.0, height: 24.0), contextGenerator: { size, context in
        context.clear(CGRect(origin: CGPoint(), size: size))
        
        context.setFillColor(color.cgColor)
        context.fillEllipse(in: CGRect(origin: CGPoint(), size: size))
        
        context.setBlendMode(.clear)
        context.fillEllipse(in: CGRect(origin: CGPoint(x: 4.0, y: 10.0), size: CGSize(width: 4.0, height: 4.0)))
        context.fillEllipse(in: CGRect(origin: CGPoint(x: 10.0, y: 10.0), size: CGSize(width: 4.0, height: 4.0)))
        context.fillEllipse(in: CGRect(origin: CGPoint(x: 16.0, y: 10.0), size: CGSize(width: 4.0, height: 4.0)))
    })
}

public class ItemListFolderInviteLinkItem: ListViewItem, ItemListItem {
    let context: AccountContext
    let presentationData: ItemListPresentationData
    let invite: ExportedChatFolderLink?
    let count: Int32
    let peers: [EnginePeer]
    let displayButton: Bool
    let enableButton: Bool
    let buttonTitle: String
    let secondaryButtonTitle: String?
    let displayImporters: Bool
    let buttonColor: UIColor?
    public let sectionId: ItemListSectionId
    let style: ItemListStyle
    let copyAction: (() -> Void)?
    let shareAction: (() -> Void)?
    let secondaryAction: (() -> Void)?
    let contextAction: ((ASDisplayNode, ContextGesture?) -> Void)?
    let viewAction: (() -> Void)?
    public let tag: ItemListItemTag?
    
    public init(
        context: AccountContext,
        presentationData: ItemListPresentationData,
        invite: ExportedChatFolderLink?,
        count: Int32,
        peers: [EnginePeer],
        displayButton: Bool,
        enableButton: Bool,
        buttonTitle: String,
        secondaryButtonTitle: String?,
        displayImporters: Bool,
        buttonColor: UIColor?,
        sectionId: ItemListSectionId,
        style: ItemListStyle,
        copyAction: (() -> Void)?,
        shareAction: (() -> Void)?,
        secondaryAction: (() -> Void)?,
        contextAction: ((ASDisplayNode, ContextGesture?) -> Void)?,
        viewAction: (() -> Void)?,
        tag: ItemListItemTag? = nil
    ) {
        self.context = context
        self.presentationData = presentationData
        self.invite = invite
        self.count = count
        self.peers = peers
        self.displayButton = displayButton
        self.enableButton = enableButton
        self.buttonTitle = buttonTitle
        self.secondaryButtonTitle = secondaryButtonTitle
        self.displayImporters = displayImporters
        self.buttonColor = buttonColor
        self.sectionId = sectionId
        self.style = style
        self.copyAction = copyAction
        self.shareAction = shareAction
        self.secondaryAction = secondaryAction
        self.contextAction = contextAction
        self.viewAction = viewAction
        self.tag = tag
    }
    
    public func nodeConfiguredForParams(async: @escaping (@escaping () -> Void) -> Void, params: ListViewItemLayoutParams, synchronousLoads: Bool, previousItem: ListViewItem?, nextItem: ListViewItem?, completion: @escaping (ListViewItemNode, @escaping () -> (Signal<Void, NoError>?, (ListViewItemApply) -> Void)) -> Void) {
        async {
            let node = ItemListFolderInviteLinkItemNode()
            let (layout, apply) = node.asyncLayout()(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem))
            
            node.contentSize = layout.contentSize
            node.insets = layout.insets
            
            Queue.mainQueue().async {
                completion(node, {
                    return (nil, { _ in apply() })
                })
            }
        }
    }
    
    public func updateNode(async: @escaping (@escaping () -> Void) -> Void, node: @escaping () -> ListViewItemNode, params: ListViewItemLayoutParams, previousItem: ListViewItem?, nextItem: ListViewItem?, animation: ListViewItemUpdateAnimation, completion: @escaping (ListViewItemNodeLayout, @escaping (ListViewItemApply) -> Void) -> Void) {
        Queue.mainQueue().async {
            if let nodeValue = node() as? ItemListFolderInviteLinkItemNode {
                let makeLayout = nodeValue.asyncLayout()
                
                async {
                    let (layout, apply) = makeLayout(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem))
                    Queue.mainQueue().async {
                        completion(layout, { _ in
                            apply()
                        })
                    }
                }
            }
        }
    }
    
    public var selectable: Bool = false
}

public class ItemListFolderInviteLinkItemNode: ListViewItemNode, ItemListItemNode {
    private let backgroundNode: ASDisplayNode
    private let topStripeNode: ASDisplayNode
    private let bottomStripeNode: ASDisplayNode
    private let maskNode: ASImageNode
    
    private let fieldNode: ASImageNode
    private let addressNode: TextNode
    private let fieldButtonNode: HighlightTrackingButtonNode
    private let referenceContainerNode: ContextReferenceContentNode
    private let containerNode: ContextControllerSourceNode
    private let addressButtonNode: HighlightTrackingButtonNode
    private let addressButtonIconNode: ASImageNode
    private var addressShimmerNode: ShimmerEffectNode?
    private var shareButtonNode: SolidRoundedButtonNode?
    private var secondaryButtonNode: SolidRoundedButtonNode?
    
    private let avatarsButtonNode: HighlightTrackingButtonNode
    private let avatarsContext: AnimatedAvatarSetContext
    private var avatarsContent: AnimatedAvatarSetContext.Content?
    private let avatarsNode: AnimatedAvatarSetNode
    private let invitedPeersNode: TextNode
    private var shimmerNode: ShimmerEffectNode?
    private var absoluteLocation: (CGRect, CGSize)?
    
    private let activateArea: AccessibilityAreaNode
    
    private var item: ItemListFolderInviteLinkItem?
    
    override public var canBeSelected: Bool {
        return false
    }
    
    public var tag: ItemListItemTag? {
        return self.item?.tag
    }
    
    public init() {
        self.backgroundNode = ASDisplayNode()
        self.backgroundNode.isLayerBacked = true
        self.backgroundNode.backgroundColor = .white
        
        self.maskNode = ASImageNode()
        
        self.topStripeNode = ASDisplayNode()
        self.topStripeNode.isLayerBacked = true
        
        self.bottomStripeNode = ASDisplayNode()
        self.bottomStripeNode.isLayerBacked = true
        
        self.fieldNode = ASImageNode()
        self.fieldNode.displaysAsynchronously = false
        self.fieldNode.displayWithoutProcessing = true
        
        self.addressNode = TextNode()
        self.addressNode.isUserInteractionEnabled = false
        
        self.fieldButtonNode = HighlightTrackingButtonNode()
    
        self.containerNode = ContextControllerSourceNode()
        self.containerNode.animateScale = false
        self.referenceContainerNode = ContextReferenceContentNode()
        
        self.addressButtonNode = HighlightTrackingButtonNode()
        self.addressButtonIconNode = ASImageNode()
        self.addressButtonIconNode.contentMode = .center
        self.addressButtonIconNode.displaysAsynchronously = false
        self.addressButtonIconNode.displayWithoutProcessing = true
        
        self.avatarsButtonNode = HighlightTrackingButtonNode()
        self.avatarsContext = AnimatedAvatarSetContext()
        self.avatarsNode = AnimatedAvatarSetNode()
        self.invitedPeersNode = TextNode()
                
        self.activateArea = AccessibilityAreaNode()
        
        super.init(layerBacked: false, dynamicBounce: false)
        
        self.addSubnode(self.fieldNode)
        self.addSubnode(self.addressNode)
        self.addSubnode(self.fieldButtonNode)
        self.addSubnode(self.avatarsNode)
        self.addSubnode(self.invitedPeersNode)
        self.addSubnode(self.avatarsButtonNode)
        
        self.containerNode.addSubnode(self.referenceContainerNode)
        self.referenceContainerNode.addSubnode(self.addressButtonIconNode)
        self.referenceContainerNode.addSubnode(self.addressButtonNode)
        self.addSubnode(self.containerNode)
        
        self.addSubnode(self.activateArea)
        
        self.containerNode.activated = { [weak self] gesture, _ in
            if let strongSelf = self, let item = strongSelf.item {
                item.contextAction?(strongSelf.referenceContainerNode, gesture)
            }
        }
        
        self.fieldButtonNode.highligthedChanged = { [weak self] highlighted in
            if let strongSelf = self {
                if highlighted {
                    strongSelf.addressNode.layer.removeAnimation(forKey: "opacity")
                    strongSelf.addressNode.alpha = 0.4
                } else {
                    strongSelf.addressNode.alpha = 1.0
                    strongSelf.addressNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                }
            }
        }
        self.fieldButtonNode.addTarget(self, action: #selector(self.fieldButtonPressed), forControlEvents: .touchUpInside)
        
        self.addressButtonNode.addTarget(self, action: #selector(self.addressButtonPressed), forControlEvents: .touchUpInside)
        self.addressButtonNode.highligthedChanged = { [weak self] highlighted in
            if let strongSelf = self {
                if highlighted {
                    strongSelf.addressButtonIconNode.layer.removeAnimation(forKey: "opacity")
                    strongSelf.addressButtonIconNode.alpha = 0.4
                } else {
                    strongSelf.addressButtonIconNode.alpha = 1.0
                    strongSelf.addressButtonIconNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                }
            }
        }
        self.shareButtonNode?.pressed = { [weak self] in
            if let strongSelf = self, let item = strongSelf.item {
                item.shareAction?()
            }
        }
        self.avatarsButtonNode.highligthedChanged = { [weak self] highlighted in
            if let strongSelf = self {
                if highlighted {
                    strongSelf.avatarsNode.layer.removeAnimation(forKey: "opacity")
                    strongSelf.invitedPeersNode.layer.removeAnimation(forKey: "opacity")
                    strongSelf.avatarsNode.alpha = 0.4
                    strongSelf.invitedPeersNode.alpha = 0.4
                } else {
                    strongSelf.avatarsNode.alpha = 1.0
                    strongSelf.invitedPeersNode.alpha = 1.0
                    strongSelf.avatarsNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                    strongSelf.invitedPeersNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                }
            }
        }
        self.avatarsButtonNode.addTarget(self, action: #selector(self.avatarsButtonPressed), forControlEvents: .touchUpInside)
    }
    
    @objc private func fieldButtonPressed() {
        if let item = self.item {
            item.copyAction?()
        }
    }
    
    @objc private func addressButtonPressed() {
        if let item = self.item {
            item.contextAction?(self.referenceContainerNode, nil)
        }
    }
    
    @objc private func avatarsButtonPressed() {
        if let item = self.item {
            item.viewAction?()
        }
    }
    
    public func asyncLayout() -> (_ item: ItemListFolderInviteLinkItem, _ params: ListViewItemLayoutParams, _ insets: ItemListNeighbors) -> (ListViewItemNodeLayout, () -> Void) {
        let makeAddressLayout = TextNode.asyncLayout(self.addressNode)
        let makeInvitedPeersLayout = TextNode.asyncLayout(self.invitedPeersNode)
        
        let currentItem = self.item
        let avatarsContext = self.avatarsContext
        
        return { item, params, neighbors in
            var updatedTheme: PresentationTheme?
            if currentItem?.presentationData.theme !== item.presentationData.theme {
                updatedTheme = item.presentationData.theme
            }
            
            let contentSize: CGSize
            let insets: UIEdgeInsets
            let separatorHeight = UIScreenPixel
            let itemBackgroundColor: UIColor
            let itemSeparatorColor: UIColor
            
            let leftInset = 16.0 + params.leftInset
            let rightInset = 16.0 + params.rightInset
            
            let titleColor: UIColor
            titleColor = item.presentationData.theme.list.itemInputField.primaryColor
            
            let alignCentrally = !"".isEmpty//!(item.invite?.link?.contains("joinchat") ?? true)
            
            let addressFont = Font.regular(!alignCentrally && params.width == 320 ? floor(item.presentationData.fontSize.itemListBaseFontSize * 15.0 / 17.0) : item.presentationData.fontSize.itemListBaseFontSize)
            let titleFont = Font.regular(item.presentationData.fontSize.itemListBaseFontSize)
            
            let constrainedWidth = alignCentrally ? params.width - leftInset - rightInset - 90.0 : params.width - leftInset - rightInset - 60.0
            
            let (addressLayout, addressApply) = makeAddressLayout(TextNodeLayoutArguments(attributedString: NSAttributedString(string: item.invite.flatMap({ $0.link.replacingOccurrences(of: "https://", with: "") }) ?? "", font: addressFont, textColor: titleColor), backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .middle, constrainedSize: CGSize(width: constrainedWidth, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
            
            let subtitle: String
            let subtitleColor: UIColor
            if item.count > 0 {
                subtitle = item.presentationData.strings.InviteLink_PeopleJoined(item.count)
                subtitleColor = item.presentationData.theme.list.itemAccentColor
            } else {
                subtitle = item.presentationData.strings.InviteLink_PeopleJoinedNone
                subtitleColor = item.presentationData.theme.list.itemSecondaryTextColor
            }
            
            let (invitedPeersLayout, invitedPeersApply) = makeInvitedPeersLayout(TextNodeLayoutArguments(attributedString: NSAttributedString(string: subtitle, font: titleFont, textColor: subtitleColor), backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: CGSize(width: params.width - params.rightInset - 20.0 - leftInset - rightInset, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
            
            let avatarsContent = avatarsContext.update(peers: item.peers, animated: false)
            
            let verticalInset: CGFloat = 16.0
            let fieldHeight: CGFloat = 52.0
            let fieldSpacing: CGFloat = 16.0
            let buttonHeight: CGFloat = 50.0
            
            var height = verticalInset * 2.0 + fieldHeight + fieldSpacing + buttonHeight + 54.0
            
            switch item.style {
            case .plain:
                itemBackgroundColor = item.presentationData.theme.list.plainBackgroundColor
                itemSeparatorColor = .clear
                insets = UIEdgeInsets()
            case .blocks:
                itemBackgroundColor = item.presentationData.theme.list.itemBlocksBackgroundColor
                itemSeparatorColor = item.presentationData.theme.list.itemBlocksSeparatorColor
                insets = itemListNeighborsGroupedInsets(neighbors, params)
            }
            
            if !item.displayImporters {
                height -= 57.0
            }
            if !item.displayButton {
                height -= 63.0
            }
            
            contentSize = CGSize(width: params.width, height: height)
            
            let layout = ListViewItemNodeLayout(contentSize: contentSize, insets: insets)
            
            return (ListViewItemNodeLayout(contentSize: contentSize, insets: insets), { [weak self] in
                if let strongSelf = self {
                    strongSelf.item = item
                    strongSelf.avatarsContent = avatarsContent
                    
                    strongSelf.activateArea.frame = CGRect(origin: CGPoint(x: params.leftInset, y: 0.0), size: CGSize(width: params.width - params.leftInset - params.rightInset, height: layout.contentSize.height))
//                    strongSelf.activateArea.accessibilityLabel = item.title
//                    strongSelf.activateArea.accessibilityValue = item.label
                    strongSelf.activateArea.accessibilityTraits = []
                    
                    if let _ = updatedTheme {
                        strongSelf.topStripeNode.backgroundColor = itemSeparatorColor
                        strongSelf.bottomStripeNode.backgroundColor = itemSeparatorColor
                        strongSelf.backgroundNode.backgroundColor = itemBackgroundColor
                        strongSelf.fieldNode.image = generateStretchableFilledCircleImage(diameter: 18.0, color: item.presentationData.theme.list.itemInputField.backgroundColor)
                        strongSelf.addressButtonIconNode.image = actionButtonImage(color: item.presentationData.theme.list.itemInputField.controlColor)
                    }
                                        
                    let _ = addressApply()
                    let _ = invitedPeersApply()
                    
                    switch item.style {
                    case .plain:
                        if strongSelf.backgroundNode.supernode != nil {
                            strongSelf.backgroundNode.removeFromSupernode()
                        }
                        if strongSelf.topStripeNode.supernode != nil {
                            strongSelf.topStripeNode.removeFromSupernode()
                        }
                        if strongSelf.bottomStripeNode.supernode == nil {
                            strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 0)
                        }
                        if strongSelf.maskNode.supernode != nil {
                            strongSelf.maskNode.removeFromSupernode()
                        }
                        strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: leftInset, y: contentSize.height - separatorHeight), size: CGSize(width: params.width - leftInset, height: separatorHeight))
                    case .blocks:
                        if strongSelf.backgroundNode.supernode == nil {
                            strongSelf.insertSubnode(strongSelf.backgroundNode, at: 0)
                        }
                        if strongSelf.topStripeNode.supernode == nil {
                            strongSelf.insertSubnode(strongSelf.topStripeNode, at: 1)
                        }
                        if strongSelf.bottomStripeNode.supernode == nil {
                            strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 2)
                        }
                        if strongSelf.maskNode.supernode == nil {
                            strongSelf.insertSubnode(strongSelf.maskNode, at: 3)
                        }
                        
                        let hasCorners = itemListHasRoundedBlockLayout(params)
                        var hasTopCorners = false
                        var hasBottomCorners = false
                        switch neighbors.top {
                            case .sameSection(false):
                                strongSelf.topStripeNode.isHidden = true
                            default:
                                hasTopCorners = true
                                strongSelf.topStripeNode.isHidden = hasCorners
                        }
                        let bottomStripeInset: CGFloat
                        switch neighbors.bottom {
                            case .sameSection(false):
                                bottomStripeInset = leftInset
                                strongSelf.bottomStripeNode.isHidden = false
                            default:
                                bottomStripeInset = 0.0
                                hasBottomCorners = true
                                strongSelf.bottomStripeNode.isHidden = hasCorners
                        }
                        
                        strongSelf.maskNode.image = hasCorners ? PresentationResourcesItemList.cornersImage(item.presentationData.theme, top: hasTopCorners, bottom: hasBottomCorners) : nil
                        
                        strongSelf.backgroundNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: contentSize.height + min(insets.top, separatorHeight) + min(insets.bottom, separatorHeight)))
                        strongSelf.maskNode.frame = strongSelf.backgroundNode.frame.insetBy(dx: params.leftInset, dy: 0.0)
                        strongSelf.topStripeNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: separatorHeight))
                        strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: bottomStripeInset, y: contentSize.height - separatorHeight), size: CGSize(width: params.width - bottomStripeInset, height: separatorHeight))
                    }
                    
                    let fieldFrame = CGRect(origin: CGPoint(x: leftInset, y: verticalInset), size: CGSize(width: params.width - leftInset - rightInset, height: fieldHeight))
                    strongSelf.fieldNode.frame = fieldFrame
                    strongSelf.fieldButtonNode.frame = fieldFrame
                    
                    strongSelf.addressNode.frame = CGRect(origin: CGPoint(x: fieldFrame.minX + (alignCentrally ? floorToScreenPixels((fieldFrame.width - addressLayout.size.width) / 2.0) : 14.0), y: fieldFrame.minY + floorToScreenPixels((fieldFrame.height - addressLayout.size.height) / 2.0) + 1.0), size: addressLayout.size)
                    
                    strongSelf.containerNode.frame = CGRect(origin: CGPoint(x: params.width - rightInset - 38.0 - 14.0, y: verticalInset), size: CGSize(width: 52.0, height: 52.0))
                    strongSelf.addressButtonNode.frame = strongSelf.containerNode.bounds
                    strongSelf.referenceContainerNode.frame =  strongSelf.containerNode.bounds
                    strongSelf.addressButtonIconNode.frame = strongSelf.containerNode.bounds
                                        
                    let shareButtonNode: SolidRoundedButtonNode
                    if let currentShareButtonNode = strongSelf.shareButtonNode {
                        shareButtonNode = currentShareButtonNode
                    } else {
                        let buttonTheme: SolidRoundedButtonTheme
                        if let buttonColor = item.buttonColor {
                            buttonTheme = SolidRoundedButtonTheme(backgroundColor: buttonColor, foregroundColor: item.presentationData.theme.list.itemCheckColors.foregroundColor)
                        } else {
                            buttonTheme = SolidRoundedButtonTheme(theme: item.presentationData.theme)
                        }
                        shareButtonNode = SolidRoundedButtonNode(theme: buttonTheme, height: 50.0, cornerRadius: 11.0)
                        shareButtonNode.pressed = { [weak self] in
                            self?.item?.shareAction?()
                        }
                        strongSelf.addSubnode(shareButtonNode)
                        strongSelf.shareButtonNode = shareButtonNode
                    }
                    shareButtonNode.title = item.buttonTitle
                    
                    if let secondaryButtonTitle = item.secondaryButtonTitle {
                        let secondaryButtonNode: SolidRoundedButtonNode
                        if let current = strongSelf.secondaryButtonNode {
                            secondaryButtonNode = current
                        } else {
                            let buttonTheme: SolidRoundedButtonTheme
                            if let buttonColor = item.buttonColor {
                                buttonTheme = SolidRoundedButtonTheme(backgroundColor: buttonColor, foregroundColor: item.presentationData.theme.list.itemCheckColors.foregroundColor)
                            } else {
                                buttonTheme = SolidRoundedButtonTheme(theme: item.presentationData.theme)
                            }
                            secondaryButtonNode = SolidRoundedButtonNode(theme: buttonTheme, height: 50.0, cornerRadius: 11.0)
                            secondaryButtonNode.pressed = { [weak self] in
                                self?.item?.secondaryAction?()
                            }
                            strongSelf.addSubnode(secondaryButtonNode)
                            strongSelf.secondaryButtonNode = secondaryButtonNode
                        }
                        secondaryButtonNode.title = secondaryButtonTitle
                    } else {
                        if let secondaryButtonNode = strongSelf.secondaryButtonNode {
                            strongSelf.secondaryButtonNode = nil
                            secondaryButtonNode.removeFromSupernode()
                        }
                    }
                    
                    var buttonWidth = contentSize.width - leftInset - rightInset
                    let totalButtonWidth = buttonWidth
                    let buttonSpacing: CGFloat = 8.0
                    if strongSelf.secondaryButtonNode != nil {
                        buttonWidth = floor((buttonWidth - 8.0) / 2.0)
                    }
                    
                    let _ = shareButtonNode.updateLayout(width: buttonWidth, transition: .immediate)
                    shareButtonNode.frame = CGRect(x: leftInset, y: verticalInset + fieldHeight + fieldSpacing, width: buttonWidth, height: buttonHeight)
                    
                    if let secondaryButtonNode = strongSelf.secondaryButtonNode {
                        let _ = secondaryButtonNode.updateLayout(width: totalButtonWidth - buttonWidth - buttonSpacing, transition: .immediate)
                        secondaryButtonNode.frame = CGRect(x: leftInset + buttonWidth + buttonSpacing, y: verticalInset + fieldHeight + fieldSpacing, width: totalButtonWidth - buttonWidth - buttonSpacing, height: buttonHeight)
                    }
                    
                    var totalWidth = invitedPeersLayout.size.width
                    var leftOrigin: CGFloat = floorToScreenPixels((params.width - invitedPeersLayout.size.width) / 2.0)
                    let avatarSpacing: CGFloat = 21.0
                    if let avatarsContent = strongSelf.avatarsContent {
                        let avatarsSize = strongSelf.avatarsNode.update(context: item.context, content: avatarsContent, itemSize: CGSize(width: 32.0, height: 32.0), animated: true, synchronousLoad: true)
                        
                        if !avatarsSize.width.isZero {
                            totalWidth += avatarsSize.width + avatarSpacing
                        }
                        
                        let avatarsNodeFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((params.width - totalWidth) / 2.0), y: fieldFrame.maxY + 87.0), size: avatarsSize)
                        strongSelf.avatarsNode.frame = avatarsNodeFrame
                        if !avatarsSize.width.isZero {
                            leftOrigin = avatarsNodeFrame.maxX + avatarSpacing
                        }
                    }
                    
                    strongSelf.invitedPeersNode.frame = CGRect(origin: CGPoint(x: leftOrigin, y: fieldFrame.maxY + 92.0), size: invitedPeersLayout.size)
                    
                    strongSelf.avatarsButtonNode.frame = CGRect(x: floorToScreenPixels((params.width - totalWidth) / 2.0), y: fieldFrame.maxY + 87.0, width: totalWidth, height: 32.0)
                    strongSelf.avatarsButtonNode.isUserInteractionEnabled = !item.peers.isEmpty && item.invite != nil
                    
                    strongSelf.addressButtonNode.isUserInteractionEnabled = item.invite != nil
                    strongSelf.fieldButtonNode.isUserInteractionEnabled = item.invite != nil
                    strongSelf.addressButtonIconNode.alpha = item.invite != nil ? 1.0 : 0.0
                    
                    strongSelf.shareButtonNode?.isUserInteractionEnabled = item.enableButton
                    strongSelf.shareButtonNode?.alpha = item.enableButton ? 1.0 : 0.4
                    strongSelf.shareButtonNode?.isHidden = !item.displayButton
                    strongSelf.avatarsButtonNode.isHidden = !item.displayImporters
                    strongSelf.avatarsNode.isHidden = !item.displayImporters || item.invite == nil
                    strongSelf.invitedPeersNode.isHidden = !item.displayImporters || item.invite == nil
                    
                    if item.invite == nil {
                        let shimmerNode: ShimmerEffectNode
                        if let current = strongSelf.shimmerNode {
                            shimmerNode = current
                        } else {
                            shimmerNode = ShimmerEffectNode()
                            strongSelf.shimmerNode = shimmerNode
                            strongSelf.insertSubnode(shimmerNode, belowSubnode: strongSelf.fieldNode)
                        }
                        shimmerNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
                        if let (rect, size) = strongSelf.absoluteLocation {
                            shimmerNode.updateAbsoluteRect(rect, within: size)
                        }
                        
                        if itemListHasRoundedBlockLayout(params) {
                            shimmerNode.clipsToBounds = true
                            shimmerNode.cornerRadius = 11.0
                        } else {
                            shimmerNode.cornerRadius = 0.0
                        }
                        
                        let lineWidth: CGFloat = 180.0
                        let lineDiameter: CGFloat = 12.0
                        let titleFrame = strongSelf.invitedPeersNode.frame
                        
                        var shapes: [ShimmerEffectNode.Shape] = []
                        shapes.append(.roundedRectLine(startPoint: CGPoint(x: floor(titleFrame.center.x - lineWidth / 2.0), y: titleFrame.minY + floor((titleFrame.height - lineDiameter) / 2.0)), width: lineWidth, diameter: lineDiameter))
                        shimmerNode.update(backgroundColor: item.presentationData.theme.list.itemBlocksBackgroundColor, foregroundColor: item.presentationData.theme.list.mediaPlaceholderColor, shimmeringColor: item.presentationData.theme.list.itemBlocksBackgroundColor.withAlphaComponent(0.4), shapes: shapes, size: layout.contentSize)
                        
                        let addressShimmerNode: ShimmerEffectNode
                        if let current = strongSelf.addressShimmerNode {
                            addressShimmerNode = current
                        } else {
                            addressShimmerNode = ShimmerEffectNode()
                            strongSelf.addressShimmerNode = addressShimmerNode
                            strongSelf.insertSubnode(addressShimmerNode, aboveSubnode: strongSelf.fieldNode)
                        }
                        addressShimmerNode.frame = strongSelf.fieldNode.frame.insetBy(dx: 18.0, dy: 0.0)
                        if let (rect, size) = strongSelf.absoluteLocation {
                            addressShimmerNode.updateAbsoluteRect(CGRect(x: rect.minX + strongSelf.fieldNode.frame.minX + 18.0, y: rect.minY + strongSelf.fieldNode.frame.minY, width: strongSelf.fieldNode.frame.width - 18.0 * 2.0, height: strongSelf.fieldNode.frame.height), within: size)
                        }
                        
                        let addressLineWidth: CGFloat = strongSelf.fieldNode.frame.width - 100.0
                        var addressShapes: [ShimmerEffectNode.Shape] = []
                        addressShapes.append(.roundedRectLine(startPoint: CGPoint(x: floor(addressShimmerNode.frame.width / 2.0 - addressLineWidth / 2.0), y: 16.0 + floor((22.0 - lineDiameter) / 2.0)), width: addressLineWidth, diameter: lineDiameter))
                        addressShimmerNode.update(backgroundColor: item.presentationData.theme.list.itemInputField.backgroundColor, foregroundColor: item.presentationData.theme.list.itemInputField.controlColor.mixedWith(item.presentationData.theme.list.itemInputField.backgroundColor, alpha: 0.7), shimmeringColor: item.presentationData.theme.list.itemBlocksBackgroundColor.withAlphaComponent(0.4), shapes: addressShapes, size: addressShimmerNode.frame.size)

                    } else {
                        if let shimmerNode = strongSelf.shimmerNode {
                            strongSelf.shimmerNode = nil
                            shimmerNode.removeFromSupernode()
                        }
                        if let shimmerNode = strongSelf.addressShimmerNode {
                            strongSelf.shimmerNode = nil
                            shimmerNode.removeFromSupernode()
                        }
                    }
                }
            })
        }
    }
    
    override public func animateInsertion(_ currentTimestamp: Double, duration: Double, options: ListViewItemAnimationOptions) {
        self.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.4)
    }
    
    override public func animateAdded(_ currentTimestamp: Double, duration: Double) {
        self.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2)
    }
    
    override public func animateRemoved(_ currentTimestamp: Double, duration: Double) {
        self.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false)
    }
    
    override public func updateAbsoluteRect(_ rect: CGRect, within containerSize: CGSize) {
        var rect = rect
        rect.origin.y += self.insets.top
        self.absoluteLocation = (rect, containerSize)
        if let shimmerNode = self.addressShimmerNode {
            shimmerNode.updateAbsoluteRect(CGRect(x: rect.minX + self.fieldNode.frame.minX + 18.0, y: rect.minY + self.fieldNode.frame.minY, width: self.fieldNode.frame.width - 18.0 * 2.0, height: self.fieldNode.frame.height), within: containerSize)
        }
        if let shimmerNode = self.shimmerNode {
            shimmerNode.updateAbsoluteRect(rect, within: containerSize)
        }
    }
}