import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import Postbox
import TelegramCore
import MobileCoreServices
import TelegramPresentationData
import TextFormat
import AccountContext
import TouchDownGesture
import ActivityIndicator
import Speak
import ObjCRuntimeUtils
import LegacyComponents
import InvisibleInkDustNode
import TextInputMenu
import ChatPresentationInterfaceState
import Pasteboard

private let counterFont = Font.with(size: 14.0, design: .regular, traits: [.monospacedNumbers])
private let minInputFontSize: CGFloat = 5.0

private func calclulateTextFieldMinHeight(_ presentationInterfaceState: ChatPresentationInterfaceState, metrics: LayoutMetrics) -> CGFloat {
    let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
    var result: CGFloat
    if baseFontSize.isEqual(to: 26.0) {
        result = 42.0
    } else if baseFontSize.isEqual(to: 23.0) {
        result = 38.0
    } else if baseFontSize.isEqual(to: 17.0) {
        result = 31.0
    } else if baseFontSize.isEqual(to: 19.0) {
        result = 33.0
    } else if baseFontSize.isEqual(to: 21.0) {
        result = 35.0
    } else {
        result = 31.0
    }
    
    if case .regular = metrics.widthClass {
        result = max(33.0, result)
    }
    
    return result
}

private func calculateTextFieldRealInsets(_ presentationInterfaceState: ChatPresentationInterfaceState) -> UIEdgeInsets {
    let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
    let top: CGFloat
    let bottom: CGFloat
    if baseFontSize.isEqual(to: 14.0) {
        top = 2.0
        bottom = 1.0
    } else if baseFontSize.isEqual(to: 15.0) {
        top = 1.0
        bottom = 1.0
    } else if baseFontSize.isEqual(to: 16.0) {
        top = 0.5
        bottom = 0.0
    } else {
        top = 0.0
        bottom = 0.0
    }
    return UIEdgeInsets(top: 4.5 + top, left: 0.0, bottom: 5.5 + bottom, right: 0.0)
}

private var currentTextInputBackgroundImage: (UIColor, UIColor, CGFloat, UIImage)?
private func textInputBackgroundImage(backgroundColor: UIColor?, inputBackgroundColor: UIColor?, strokeColor: UIColor, diameter: CGFloat, caption: Bool) -> UIImage? {
    if let backgroundColor = backgroundColor, let current = currentTextInputBackgroundImage {
        if current.0.isEqual(backgroundColor) && current.1.isEqual(strokeColor) && current.2.isEqual(to: diameter) {
            return current.3
        }
    }
    
    let image = generateImage(CGSize(width: diameter, height: diameter), rotatedContext: { size, context in
        context.clear(CGRect(x: 0.0, y: 0.0, width: diameter, height: diameter))

        if caption {
            context.setBlendMode(.normal)
            context.setFillColor(strokeColor.cgColor)
        } else if let inputBackgroundColor = inputBackgroundColor {
            context.setBlendMode(.normal)
            context.setFillColor(inputBackgroundColor.cgColor)
        } else {
            context.setBlendMode(.clear)
            context.setFillColor(UIColor.clear.cgColor)
        }
        context.fillEllipse(in: CGRect(x: 0.0, y: 0.0, width: diameter, height: diameter))
            
        if !caption {
            context.setBlendMode(.normal)
            context.setStrokeColor(strokeColor.cgColor)
            let strokeWidth: CGFloat = 1.0
            context.setLineWidth(strokeWidth)
            context.strokeEllipse(in: CGRect(x: strokeWidth / 2.0, y: strokeWidth / 2.0, width: diameter - strokeWidth, height: diameter - strokeWidth))
        }
    })?.stretchableImage(withLeftCapWidth: Int(diameter) / 2, topCapHeight: Int(diameter) / 2)
    if let image = image {
        if let backgroundColor = backgroundColor {
            currentTextInputBackgroundImage = (backgroundColor, strokeColor, diameter, image)
        }
        return image
    } else {
        return nil
    }
}

private class CaptionEditableTextNode: EditableTextNode {
    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
        let previousAlpha = self.alpha
        self.alpha = 1.0
        let result = super.hitTest(point, with: event)
        self.alpha = previousAlpha
        return result
    }
}

public class AttachmentTextInputPanelNode: ASDisplayNode, TGCaptionPanelView, ASEditableTextNodeDelegate {
    private let context: AccountContext
    
    private let isCaption: Bool
    private let isAttachment: Bool
    
    private var textPlaceholderNode: ImmediateTextNode
    private let textInputContainerBackgroundNode: ASImageNode
    private let textInputContainer: ASDisplayNode
    public var textInputNode: EditableTextNode?
    private var dustNode: InvisibleInkDustNode?
    private var oneLineNode: ImmediateTextNode
    private var oneLineDustNode: InvisibleInkDustNode?
    
    let textInputBackgroundNode: ASDisplayNode
    let textInputBackgroundImageNode: ASImageNode
    private var transparentTextInputBackgroundImage: UIImage?
    private let actionButtons: AttachmentTextInputActionButtonsNode
    private let counterTextNode: ImmediateTextNode

    private var validLayout: (CGFloat, CGFloat, CGFloat, UIEdgeInsets, CGFloat, LayoutMetrics, Bool)?
    
    public var sendMessage: (AttachmentTextInputPanelSendMode) -> Void = { _ in }
    public var updateHeight: (Bool) -> Void = { _ in }

    private var updatingInputState = false
    
    private var currentPlaceholder: String?
    
    public var effectivePresentationInterfaceState: (() -> ChatPresentationInterfaceState?)?
    private var presentationInterfaceState: ChatPresentationInterfaceState?
    private var initializedPlaceholder = false
        
    private let inputMenu: TextInputMenu
    
    private var theme: PresentationTheme?
    private var strings: PresentationStrings?
    
    private let hapticFeedback = HapticFeedback()
    
    public var inputTextState: ChatTextInputState {
        if let textInputNode = self.textInputNode {
            let selectionRange: Range<Int> = textInputNode.selectedRange.location ..< (textInputNode.selectedRange.location + textInputNode.selectedRange.length)
            return ChatTextInputState(inputText: stateAttributedStringForText(textInputNode.attributedText ?? NSAttributedString()), selectionRange: selectionRange)
        } else {
            return ChatTextInputState()
        }
    }
    
    var storedInputLanguage: String?
    var effectiveInputLanguage: String? {
        if let textInputNode = textInputNode, textInputNode.isFirstResponder() {
            return textInputNode.textInputMode.primaryLanguage
        } else {
            return self.storedInputLanguage
        }
    }
    
    var enablePredictiveInput: Bool = true {
        didSet {
            if let textInputNode = self.textInputNode {
                textInputNode.textView.autocorrectionType = self.enablePredictiveInput ? .default : .no
            }
        }
    }
    
    public var interfaceInteraction: ChatPanelInterfaceInteraction?
    
    public func updateSendButtonEnabled(_ enabled: Bool, animated: Bool) {
        self.actionButtons.isUserInteractionEnabled = enabled
        
        let transition: ContainedViewLayoutTransition = animated ? .animated(duration: 0.2, curve: .easeInOut) : .immediate
        transition.updateAlpha(node: self.actionButtons, alpha: enabled ? 1.0 : 0.3)
    }
        
    public func updateInputTextState(_ state: ChatTextInputState, animated: Bool) {
        if state.inputText.length != 0 && self.textInputNode == nil {
            self.loadTextInputNode()
        }
        
        if let textInputNode = self.textInputNode, let _ = self.presentationInterfaceState, !self.skipUpdate {
            self.updatingInputState = true
            
            var textColor: UIColor = .black
            var accentTextColor: UIColor = .blue
            var baseFontSize: CGFloat = 17.0
            if let presentationInterfaceState = self.presentationInterfaceState {
                textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
                accentTextColor = presentationInterfaceState.theme.chat.inputPanel.panelControlAccentColor
                baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            }
            textInputNode.attributedText = textAttributedStringForStateText(state.inputText, fontSize: baseFontSize, textColor: textColor, accentTextColor: accentTextColor, writingDirection: nil, spoilersRevealed: self.spoilersRevealed)
            textInputNode.selectedRange = NSMakeRange(state.selectionRange.lowerBound, state.selectionRange.count)
            self.updatingInputState = false
            self.updateTextNodeText(animated: animated)
            self.updateSpoiler()
        }
    }
    
    public var text: String {
        get {
            return self.textInputNode?.attributedText?.string ?? ""
        } set(value) {
            if let textInputNode = self.textInputNode {
                var textColor: UIColor = .black
                var baseFontSize: CGFloat = 17.0
                if let presentationInterfaceState = self.presentationInterfaceState {
                    textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
                    baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
                }
                textInputNode.attributedText = NSAttributedString(string: value, font: Font.regular(baseFontSize), textColor: textColor)
                self.editableTextNodeDidUpdateText(textInputNode)
            }
        }
    }
    
    public func caption() -> NSAttributedString {
        return self.textInputNode?.attributedText ?? NSAttributedString()
    }
    
    private let textInputViewInternalInsets = UIEdgeInsets(top: 1.0, left: 13.0, bottom: 1.0, right: 13.0)
    
    private var spoilersRevealed = false
    
    public init(context: AccountContext, presentationInterfaceState: ChatPresentationInterfaceState, isCaption: Bool = false, isAttachment: Bool = false, presentController: @escaping (ViewController) -> Void) {
        self.context = context
        self.presentationInterfaceState = presentationInterfaceState
        self.isCaption = isCaption
        self.isAttachment = isAttachment
        
        var hasSpoilers = true
        if presentationInterfaceState.chatLocation.peerId?.namespace == Namespaces.Peer.SecretChat {
            hasSpoilers = false
        }
        self.inputMenu = TextInputMenu(hasSpoilers: hasSpoilers)
        
        self.textInputContainerBackgroundNode = ASImageNode()
        self.textInputContainerBackgroundNode.isUserInteractionEnabled = false
        self.textInputContainerBackgroundNode.displaysAsynchronously = false
        
        self.textInputContainer = ASDisplayNode()
        if !isCaption {
            self.textInputContainer.addSubnode(self.textInputContainerBackgroundNode)
        }
        self.textInputContainer.clipsToBounds = true
        
        self.textInputBackgroundNode = ASDisplayNode()
        self.textInputBackgroundImageNode = ASImageNode()
        self.textInputBackgroundImageNode.displaysAsynchronously = false
        self.textInputBackgroundImageNode.displayWithoutProcessing = true
        self.textPlaceholderNode = ImmediateTextNode()
        self.textPlaceholderNode.maximumNumberOfLines = 1
        self.textPlaceholderNode.isUserInteractionEnabled = false
        
        self.oneLineNode = ImmediateTextNode()
        self.oneLineNode.maximumNumberOfLines = 1
        self.oneLineNode.isUserInteractionEnabled = false
        
        self.actionButtons = AttachmentTextInputActionButtonsNode(presentationInterfaceState: presentationInterfaceState, presentController: presentController)
        self.counterTextNode = ImmediateTextNode()
        self.counterTextNode.textAlignment = .center
        
        super.init()
        
        self.actionButtons.sendButtonLongPressed = { [weak self] node, gesture in
            self?.interfaceInteraction?.displaySendMessageOptions(node, gesture)
        }
        
        self.actionButtons.sendButton.addTarget(self, action: #selector(self.sendButtonPressed), forControlEvents: .touchUpInside)
        self.actionButtons.sendButton.alpha = 1.0
        self.actionButtons.updateAccessibility()
        
        self.addSubnode(self.textInputContainer)
        self.addSubnode(self.textInputBackgroundNode)
        self.textInputBackgroundNode.addSubnode(self.textInputBackgroundImageNode)
        
        self.addSubnode(self.textPlaceholderNode)
        
        self.addSubnode(self.actionButtons)
        self.addSubnode(self.counterTextNode)
        
        if isCaption {
            self.addSubnode(self.oneLineNode)
        }
                
        self.textInputBackgroundImageNode.clipsToBounds = true
        let recognizer = TouchDownGestureRecognizer(target: self, action: #selector(self.textInputBackgroundViewTap(_:)))
        recognizer.touchDown = { [weak self] in
            if let strongSelf = self {
                strongSelf.ensureFocused()
            }
        }
        self.textInputBackgroundNode.view.addGestureRecognizer(recognizer)
        
        self.updateSendButtonEnabled(isCaption || isAttachment, animated: false)
    }
    
    public var sendPressed: ((NSAttributedString?) -> Void)?
    public var focusUpdated: ((Bool) -> Void)?
    public var heightUpdated: ((Bool) -> Void)?
    
    public func updateLayoutSize(_ size: CGSize, sideInset: CGFloat) -> CGFloat {
        guard let presentationInterfaceState = self.presentationInterfaceState else {
            return 0.0
        }
        return self.updateLayout(width: size.width, leftInset: sideInset, rightInset: sideInset, additionalSideInsets: UIEdgeInsets(), maxHeight: size.height, isSecondary: false, transition: .immediate, interfaceState: presentationInterfaceState, metrics: LayoutMetrics(widthClass: .compact, heightClass: .compact))
    }
    
    public func setCaption(_ caption: NSAttributedString?) {
        self.interfaceInteraction?.updateTextInputStateAndMode { state, inputMode in
            return (ChatTextInputState(inputText: caption ?? NSAttributedString()), inputMode)
        }
    }
    
    public func dismissInput() {
        self.ensureUnfocused()
    }
    
    public func baseHeight() -> CGFloat {
        return 45.0
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    public func loadTextInputNodeIfNeeded() {
        if self.textInputNode == nil {
            self.loadTextInputNode()
        }
    }
    
    private func loadTextInputNode() {
        let textInputNode = CaptionEditableTextNode()
        textInputNode.initialPrimaryLanguage = self.presentationInterfaceState?.interfaceState.inputLanguage
        var textColor: UIColor = .black
        var tintColor: UIColor = .blue
        var baseFontSize: CGFloat = 17.0
        var keyboardAppearance: UIKeyboardAppearance = UIKeyboardAppearance.default
        if let presentationInterfaceState = self.presentationInterfaceState {
            textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
            tintColor = presentationInterfaceState.theme.list.itemAccentColor
            baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            keyboardAppearance = presentationInterfaceState.theme.rootController.keyboardColor.keyboardAppearance
        }
        
        let paragraphStyle = NSMutableParagraphStyle()
        paragraphStyle.lineSpacing = 1.0
        paragraphStyle.lineHeightMultiple = 1.0
        paragraphStyle.paragraphSpacing = 1.0
        paragraphStyle.maximumLineHeight = 20.0
        paragraphStyle.minimumLineHeight = 20.0
        
        textInputNode.typingAttributes = [NSAttributedString.Key.font.rawValue: Font.regular(max(minInputFontSize, baseFontSize)), NSAttributedString.Key.foregroundColor.rawValue: textColor, NSAttributedString.Key.paragraphStyle.rawValue: paragraphStyle]
        textInputNode.clipsToBounds = false
        textInputNode.textView.clipsToBounds = false
        textInputNode.delegate = self
        textInputNode.hitTestSlop = UIEdgeInsets(top: -5.0, left: -5.0, bottom: -5.0, right: -5.0)
        textInputNode.keyboardAppearance = keyboardAppearance
        textInputNode.tintColor = tintColor
        textInputNode.textView.scrollIndicatorInsets = UIEdgeInsets(top: 9.0, left: 0.0, bottom: 9.0, right: -13.0)
        self.textInputContainer.addSubnode(textInputNode)
        textInputNode.view.disablesInteractiveTransitionGestureRecognizer = true
        self.textInputNode = textInputNode
        
        if let presentationInterfaceState = self.presentationInterfaceState {
            refreshChatTextInputTypingAttributes(textInputNode, theme: presentationInterfaceState.theme, baseFontSize: baseFontSize)
            textInputNode.textContainerInset = calculateTextFieldRealInsets(presentationInterfaceState)
        }
        
        if !self.textInputContainer.bounds.size.width.isZero {
            let textInputFrame = self.textInputContainer.frame
            
            textInputNode.frame = CGRect(origin: CGPoint(x: self.textInputViewInternalInsets.left, y: self.textInputViewInternalInsets.top), size: CGSize(width: textInputFrame.size.width - (self.textInputViewInternalInsets.left + self.textInputViewInternalInsets.right), height: textInputFrame.size.height - self.textInputViewInternalInsets.top - self.textInputViewInternalInsets.bottom))
            textInputNode.view.layoutIfNeeded()
            self.updateSpoiler()
        }
        
        self.textInputBackgroundNode.isUserInteractionEnabled = false
        self.textInputBackgroundNode.view.removeGestureRecognizer(self.textInputBackgroundNode.view.gestureRecognizers![0])
        
        let recognizer = TouchDownGestureRecognizer(target: self, action: #selector(self.textInputBackgroundViewTap(_:)))
        recognizer.touchDown = { [weak self] in
            if let strongSelf = self {
                strongSelf.ensureFocused()
            }
        }
        textInputNode.view.addGestureRecognizer(recognizer)
        
        textInputNode.textView.accessibilityHint = self.textPlaceholderNode.attributedText?.string
    }
    
    private func textFieldMaxHeight(_ maxHeight: CGFloat, metrics: LayoutMetrics) -> CGFloat {
        let textFieldInsets = self.textFieldInsets(metrics: metrics)
        return max(33.0, maxHeight - (textFieldInsets.top + textFieldInsets.bottom + self.textInputViewInternalInsets.top + self.textInputViewInternalInsets.bottom))
    }
    
    private func calculateTextFieldMetrics(width: CGFloat, maxHeight: CGFloat, metrics: LayoutMetrics) -> (accessoryButtonsWidth: CGFloat, textFieldHeight: CGFloat) {
        let textFieldInsets = self.textFieldInsets(metrics: metrics)
        
        let fieldMaxHeight = textFieldMaxHeight(maxHeight, metrics: metrics)
        
        var textFieldMinHeight: CGFloat = 35.0
        if let presentationInterfaceState = self.presentationInterfaceState {
            textFieldMinHeight = calclulateTextFieldMinHeight(presentationInterfaceState, metrics: metrics)
        }
        
        let textFieldHeight: CGFloat
        if let textInputNode = self.textInputNode {
            let maxTextWidth = width - textFieldInsets.left - textFieldInsets.right - self.textInputViewInternalInsets.left - self.textInputViewInternalInsets.right
            let measuredHeight = textInputNode.measure(CGSize(width: maxTextWidth, height: CGFloat.greatestFiniteMagnitude))
            let unboundTextFieldHeight = max(textFieldMinHeight, ceil(measuredHeight.height))
            
            let maxNumberOfLines = min(12, (Int(fieldMaxHeight - 11.0) - 33) / 22)
            
            let updatedMaxHeight = (CGFloat(maxNumberOfLines) * (22.0 + 2.0) + 10.0)
            
            textFieldHeight = max(textFieldMinHeight, min(updatedMaxHeight, unboundTextFieldHeight))
        } else {
            textFieldHeight = textFieldMinHeight
        }
        
        return (0.0, textFieldHeight)
    }
    
    private func textFieldInsets(metrics: LayoutMetrics) -> UIEdgeInsets {
        var insets = UIEdgeInsets(top: 6.0, left: 6.0, bottom: 6.0, right: 42.0)
        if case .regular = metrics.widthClass, case .regular = metrics.heightClass {
            insets.top += 1.0
            insets.bottom += 1.0
        }
        return insets
    }
    
    private func panelHeight(textFieldHeight: CGFloat, metrics: LayoutMetrics) -> CGFloat {
        let textFieldInsets = self.textFieldInsets(metrics: metrics)
        let result = textFieldHeight + textFieldInsets.top + textFieldInsets.bottom + self.textInputViewInternalInsets.top + self.textInputViewInternalInsets.bottom
        return result
    }
    
    func minimalHeight(interfaceState: ChatPresentationInterfaceState, metrics: LayoutMetrics) -> CGFloat {
        let textFieldMinHeight = calclulateTextFieldMinHeight(interfaceState, metrics: metrics)
        var minimalHeight: CGFloat = 14.0 + textFieldMinHeight
        if case .regular = metrics.widthClass, case .regular = metrics.heightClass {
            minimalHeight += 2.0
        }
        return minimalHeight
    }
    
    public func updateLayout(width: CGFloat, leftInset: CGFloat, rightInset: CGFloat, additionalSideInsets: UIEdgeInsets, maxHeight: CGFloat, isSecondary: Bool, transition: ContainedViewLayoutTransition, interfaceState: ChatPresentationInterfaceState, metrics: LayoutMetrics) -> CGFloat {
        let hadLayout = self.validLayout != nil
        let previousAdditionalSideInsets = self.validLayout?.3
        self.validLayout = (width, leftInset, rightInset, additionalSideInsets, maxHeight, metrics, isSecondary)
    
        var transition = transition
        if let previousAdditionalSideInsets = previousAdditionalSideInsets, previousAdditionalSideInsets.right != additionalSideInsets.right {
            if case .animated = transition {
                transition = .animated(duration: 0.2, curve: .easeInOut)
            }
        }
                                
        if self.presentationInterfaceState != interfaceState || !hadLayout {
            let previousState = self.presentationInterfaceState
            self.presentationInterfaceState = interfaceState
            
            let themeUpdated = previousState?.theme !== interfaceState.theme
            
            var updateSendButtonIcon = false
            if (previousState?.interfaceState.editMessage != nil) != (interfaceState.interfaceState.editMessage != nil) {
                updateSendButtonIcon = true
            }
            if self.theme !== interfaceState.theme {
                updateSendButtonIcon = true
                
                if self.theme == nil || !self.theme!.chat.inputPanel.inputTextColor.isEqual(interfaceState.theme.chat.inputPanel.inputTextColor) {
                    let textColor = interfaceState.theme.chat.inputPanel.inputTextColor
                    let baseFontSize = max(minInputFontSize, interfaceState.fontSize.baseDisplaySize)

                    if let textInputNode = self.textInputNode {
                        if let text = textInputNode.attributedText {
                            let selectedRange = textInputNode.selectedRange
                            let textRange =  NSMakeRange(0, (text.string as NSString).length)
                            let updatedText = NSMutableAttributedString(attributedString: text)
                            updatedText.removeAttribute(.foregroundColor, range: textRange)
                            updatedText.addAttribute(.foregroundColor, value: textColor, range: textRange)
                            
                            textInputNode.attributedText = updatedText
                            textInputNode.selectedRange = selectedRange
                        }
                        textInputNode.typingAttributes = [NSAttributedString.Key.font.rawValue: Font.regular(baseFontSize), NSAttributedString.Key.foregroundColor.rawValue: textColor]
                        
                        self.updateSpoiler()
                    }
                }
                
                let keyboardAppearance = interfaceState.theme.rootController.keyboardColor.keyboardAppearance
                if let textInputNode = self.textInputNode, textInputNode.keyboardAppearance != keyboardAppearance, textInputNode.isFirstResponder() {
                    if textInputNode.isCurrentlyEmoji() {
                        textInputNode.initialPrimaryLanguage = "emoji"
                        textInputNode.resetInitialPrimaryLanguage()
                    }
                    textInputNode.keyboardAppearance = keyboardAppearance
                }
                
                self.theme = interfaceState.theme

                self.actionButtons.updateTheme(theme: interfaceState.theme, wallpaper: interfaceState.chatWallpaper)
                
                let textFieldMinHeight = calclulateTextFieldMinHeight(interfaceState, metrics: metrics)
                let minimalInputHeight: CGFloat = 2.0 + textFieldMinHeight
                
                let backgroundColor: UIColor
                if case let .color(color) = interfaceState.chatWallpaper, UIColor(rgb: color).isEqual(interfaceState.theme.chat.inputPanel.panelBackgroundColorNoWallpaper) {
                    backgroundColor = interfaceState.theme.chat.inputPanel.panelBackgroundColorNoWallpaper
                } else {
                    backgroundColor = interfaceState.theme.chat.inputPanel.panelBackgroundColor
                }
                
                self.textInputBackgroundImageNode.image = textInputBackgroundImage(backgroundColor: backgroundColor, inputBackgroundColor: nil, strokeColor: interfaceState.theme.chat.inputPanel.inputStrokeColor, diameter: minimalInputHeight, caption: self.isCaption)
                self.transparentTextInputBackgroundImage = textInputBackgroundImage(backgroundColor: nil, inputBackgroundColor: interfaceState.theme.chat.inputPanel.inputBackgroundColor, strokeColor: interfaceState.theme.chat.inputPanel.inputStrokeColor, diameter: minimalInputHeight, caption: self.isCaption)
                self.textInputContainerBackgroundNode.image = generateStretchableFilledCircleImage(diameter: minimalInputHeight, color: interfaceState.theme.chat.inputPanel.inputBackgroundColor)
            } else {
                if self.strings !== interfaceState.strings {
                    self.strings = interfaceState.strings
                    self.inputMenu.updateStrings(interfaceState.strings)
                }
            }
  
            if themeUpdated || !self.initializedPlaceholder {
                self.initializedPlaceholder = true
                
                let placeholder = self.isCaption || self.isAttachment ? interfaceState.strings.MediaPicker_AddCaption : interfaceState.strings.Conversation_InputTextPlaceholder
               
                if self.currentPlaceholder != placeholder || themeUpdated {
                    self.currentPlaceholder = placeholder
                    let baseFontSize = max(minInputFontSize, interfaceState.fontSize.baseDisplaySize)
                    self.textPlaceholderNode.attributedText = NSAttributedString(string: placeholder, font: Font.regular(baseFontSize), textColor: interfaceState.theme.chat.inputPanel.inputPlaceholderColor)
                    self.textInputNode?.textView.accessibilityHint = placeholder
                    let placeholderSize = self.textPlaceholderNode.updateLayout(CGSize(width: 320.0, height: CGFloat.greatestFiniteMagnitude))
                    if transition.isAnimated, let snapshotLayer = self.textPlaceholderNode.layer.snapshotContentTree() {
                        self.textPlaceholderNode.supernode?.layer.insertSublayer(snapshotLayer, above: self.textPlaceholderNode.layer)
                        snapshotLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.22, removeOnCompletion: false, completion: { [weak snapshotLayer] _ in
                            snapshotLayer?.removeFromSuperlayer()
                        })
                        self.textPlaceholderNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.18)
                    }
                    self.textPlaceholderNode.frame = CGRect(origin: self.textPlaceholderNode.frame.origin, size: placeholderSize)
                }
                
                self.actionButtons.sendButtonLongPressEnabled = true
            }
            
            let sendButtonHasApplyIcon = self.isCaption || interfaceState.interfaceState.editMessage != nil
            
            if updateSendButtonIcon {
                if !self.actionButtons.animatingSendButton {
                    let imageNode = self.actionButtons.sendButton.imageNode
                    
                    if transition.isAnimated && !self.actionButtons.sendButton.alpha.isZero && self.actionButtons.sendButton.layer.animation(forKey: "opacity") == nil, let previousImage = imageNode.image {
                        let tempView = UIImageView(image: previousImage)
                        self.actionButtons.sendButton.view.addSubview(tempView)
                        tempView.frame = imageNode.frame
                        tempView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, removeOnCompletion: false, completion: { [weak tempView] _ in
                            tempView?.removeFromSuperview()
                        })
                        tempView.layer.animateScale(from: 1.0, to: 0.2, duration: 0.2, removeOnCompletion: false)
                        
                        imageNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2)
                        imageNode.layer.animateScale(from: 0.2, to: 1.0, duration: 0.2)
                    }
                    self.actionButtons.sendButtonHasApplyIcon = sendButtonHasApplyIcon
                    if self.actionButtons.sendButtonHasApplyIcon {
                        self.actionButtons.sendButton.setImage(PresentationResourcesChat.chatInputPanelApplyIconImage(interfaceState.theme), for: [])
                    } else {
                        self.actionButtons.sendButton.setImage(PresentationResourcesChat.chatInputPanelSendIconImage(interfaceState.theme), for: [])
                    }
                }
            }
        }
        
        var textFieldMinHeight: CGFloat = 33.0
        if let presentationInterfaceState = self.presentationInterfaceState {
            textFieldMinHeight = calclulateTextFieldMinHeight(presentationInterfaceState, metrics: metrics)
        }
        let minimalHeight: CGFloat = 14.0 + textFieldMinHeight
        
        let baseWidth = width - leftInset - rightInset
        let (_, textFieldHeight) = self.calculateTextFieldMetrics(width: baseWidth, maxHeight: maxHeight, metrics: metrics)
        var panelHeight = self.panelHeight(textFieldHeight: textFieldHeight, metrics: metrics)
        
        self.updateCounterTextNode(transition: transition)
        
        var inputHasText = false
        if let textInputNode = self.textInputNode, let attributedText = textInputNode.attributedText, attributedText.length != 0 {
            inputHasText = true
        }
        
        var textFieldInsets = self.textFieldInsets(metrics: metrics)
        if additionalSideInsets.right > 0.0 {
            textFieldInsets.right += additionalSideInsets.right / 3.0
        }
        
        var textInputViewRealInsets = UIEdgeInsets()
        if let presentationInterfaceState = self.presentationInterfaceState {
            textInputViewRealInsets = calculateTextFieldRealInsets(presentationInterfaceState)
        }
        
        if self.isCaption {
            if self.isFocused {
                self.oneLineNode.alpha = 0.0
                self.oneLineDustNode?.alpha = 0.0
                self.textInputNode?.alpha = 1.0
                
                transition.updateAlpha(node: self.actionButtons, alpha: 1.0)
                transition.updateTransformScale(node: self.actionButtons, scale: 1.0)
                transition.updateAlpha(node: self.textInputBackgroundImageNode, alpha: 1.0)
            } else {
                panelHeight = minimalHeight
                
                transition.updateAlpha(node: self.oneLineNode, alpha: inputHasText ? 1.0 : 0.0)
                if let oneLineDustNode = self.oneLineDustNode {
                    transition.updateAlpha(node: oneLineDustNode, alpha: inputHasText ? 1.0 : 0.0)
                }
                if let textInputNode = self.textInputNode {
                    transition.updateAlpha(node: textInputNode, alpha: inputHasText ? 0.0 : 1.0)
                }
                
                transition.updateAlpha(node: self.actionButtons, alpha: 0.0)
                transition.updateTransformScale(node: self.actionButtons, scale: 0.001)
                transition.updateAlpha(node: self.textInputBackgroundImageNode, alpha: inputHasText ? 1.0 : 0.0)
            }

            let oneLineSize = self.oneLineNode.updateLayout(CGSize(width: baseWidth - textFieldInsets.left - textFieldInsets.right, height: CGFloat.greatestFiniteMagnitude))
            let oneLineFrame = CGRect(origin: CGPoint(x: leftInset + textFieldInsets.left + self.textInputViewInternalInsets.left, y: textFieldInsets.top + self.textInputViewInternalInsets.top + textInputViewRealInsets.top + UIScreenPixel), size: oneLineSize)
            self.oneLineNode.frame = oneLineFrame
            
            self.updateOneLineSpoiler()
        }
        self.textPlaceholderNode.isHidden = inputHasText
          
        let textInputFrame = CGRect(x: leftInset + textFieldInsets.left, y: textFieldInsets.top, width: baseWidth - textFieldInsets.left - textFieldInsets.right, height: panelHeight - textFieldInsets.top - textFieldInsets.bottom)
        transition.updateFrame(node: self.textInputContainer, frame: textInputFrame)
        
        if let textInputNode = self.textInputNode {
            let textFieldFrame = CGRect(origin: CGPoint(x: self.textInputViewInternalInsets.left, y: self.textInputViewInternalInsets.top), size: CGSize(width: textInputFrame.size.width - (self.textInputViewInternalInsets.left + self.textInputViewInternalInsets.right), height: textInputFrame.size.height - self.textInputViewInternalInsets.top - textInputViewInternalInsets.bottom))
            let shouldUpdateLayout = textFieldFrame.size != textInputNode.frame.size
            transition.updateFrame(node: textInputNode, frame: textFieldFrame)
            if shouldUpdateLayout {
                textInputNode.layout()
            }
        }
        
        self.updateFieldAndButtonsLayout(inputHasText: inputHasText, panelHeight: panelHeight, transition: transition)
        
        self.actionButtons.updateAccessibility()
        
        return panelHeight
    }
    
    private func updateFieldAndButtonsLayout(inputHasText: Bool, panelHeight: CGFloat, transition: ContainedViewLayoutTransition) {
        guard let (width, leftInset, rightInset, additionalSideInsets, _, metrics, _) = self.validLayout else {
            return
        }
        var textFieldMinHeight: CGFloat = 33.0
        if let presentationInterfaceState = self.presentationInterfaceState {
            textFieldMinHeight = calclulateTextFieldMinHeight(presentationInterfaceState, metrics: metrics)
        }
        let minimalHeight: CGFloat = 14.0 + textFieldMinHeight
        
        var panelHeight = panelHeight
        var composeButtonsOffset: CGFloat = 0.0
        if self.isCaption {
            if self.isFocused {
                composeButtonsOffset = 0.0
            } else {
                composeButtonsOffset = 36.0
                panelHeight = minimalHeight
            }
        }
        
        let baseWidth = width - leftInset - rightInset
        let textInputFrame = self.textInputContainer.frame
        
        var textBackgroundInset: CGFloat = 0.0
        let actionButtonsSize: CGSize
        if let presentationInterfaceState = self.presentationInterfaceState {
            actionButtonsSize = self.actionButtons.updateLayout(size: CGSize(width: 44.0, height: minimalHeight), transition: transition, minimized: !self.isAttachment || inputHasText, interfaceState: presentationInterfaceState)
            textBackgroundInset = 44.0 - actionButtonsSize.width
        } else {
            actionButtonsSize = CGSize(width: 44.0, height: minimalHeight)
        }
        
        var textFieldInsets = self.textFieldInsets(metrics: metrics)
        if additionalSideInsets.right > 0.0 {
            textFieldInsets.right += additionalSideInsets.right / 3.0
        }
        
        let actionButtonsFrame = CGRect(origin: CGPoint(x: width - rightInset - actionButtonsSize.width + 1.0 - UIScreenPixel + composeButtonsOffset, y: panelHeight - minimalHeight), size: actionButtonsSize)
        transition.updateFrame(node: self.actionButtons, frame: actionButtonsFrame)
        
        let textInputBackgroundFrame = CGRect(origin: CGPoint(), size: CGSize(width: textInputFrame.size.width + composeButtonsOffset + textBackgroundInset, height: textInputFrame.size.height))
        transition.updateFrame(node: self.textInputContainerBackgroundNode, frame: textInputBackgroundFrame)
        
        transition.updateFrame(layer: self.textInputBackgroundNode.layer, frame: CGRect(x: leftInset + textFieldInsets.left, y: textFieldInsets.top, width: baseWidth - textFieldInsets.left - textFieldInsets.right + composeButtonsOffset + textBackgroundInset, height: panelHeight - textFieldInsets.top - textFieldInsets.bottom))
        transition.updateFrame(layer: self.textInputBackgroundImageNode.layer, frame: CGRect(x: 0.0, y: 0.0, width: baseWidth - textFieldInsets.left - textFieldInsets.right + composeButtonsOffset + textBackgroundInset, height: panelHeight - textFieldInsets.top - textFieldInsets.bottom))
        
        var textInputViewRealInsets = UIEdgeInsets()
        if let presentationInterfaceState = self.presentationInterfaceState {
            textInputViewRealInsets = calculateTextFieldRealInsets(presentationInterfaceState)
        }
        
        let placeholderFrame: CGRect
        if self.isCaption && !self.isFocused {
            placeholderFrame = CGRect(origin: CGPoint(x: textInputFrame.minX + floorToScreenPixels((textInputBackgroundFrame.width - self.textPlaceholderNode.frame.width) / 2.0), y: textFieldInsets.top + self.textInputViewInternalInsets.top + textInputViewRealInsets.top + UIScreenPixel), size: self.textPlaceholderNode.frame.size)
        } else {
            placeholderFrame = CGRect(origin: CGPoint(x: leftInset + textFieldInsets.left + self.textInputViewInternalInsets.left, y: textFieldInsets.top + self.textInputViewInternalInsets.top + textInputViewRealInsets.top + UIScreenPixel), size: self.textPlaceholderNode.frame.size)
        }
        transition.updateFrame(node: self.textPlaceholderNode, frame: placeholderFrame)
    }
        
    private var skipUpdate = false
    @objc public func editableTextNodeDidUpdateText(_ editableTextNode: ASEditableTextNode) {
        if let textInputNode = self.textInputNode, let presentationInterfaceState = self.presentationInterfaceState {
            let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            refreshChatTextInputAttributes(textInputNode, theme: presentationInterfaceState.theme, baseFontSize: baseFontSize, spoilersRevealed: self.spoilersRevealed)
            refreshChatTextInputTypingAttributes(textInputNode, theme: presentationInterfaceState.theme, baseFontSize: baseFontSize)
            
            self.updateSpoiler()
            
            let inputTextState = self.inputTextState
            
            self.skipUpdate = true
            
            self.interfaceInteraction?.updateTextInputStateAndMode({ _, inputMode in return (inputTextState, inputMode) })
            self.interfaceInteraction?.updateInputLanguage({ _ in return textInputNode.textInputMode.primaryLanguage })
            if self.isCaption, let presentationInterfaceState = self.presentationInterfaceState {
                self.presentationInterfaceState = presentationInterfaceState.updatedInterfaceState({
                    return $0.withUpdatedComposeInputState(inputTextState)
                })
                
            }
            self.updateTextNodeText(animated: true)
            
            self.updateCounterTextNode(transition: .immediate)
            
            self.skipUpdate = false
        }
    }
    
    private func updateSpoiler() {
        guard let textInputNode = self.textInputNode, let presentationInterfaceState = self.presentationInterfaceState else {
            return
        }
        
        let textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
        
        var rects: [CGRect] = []
        
        if let attributedText = textInputNode.attributedText {
            let beginning = textInputNode.textView.beginningOfDocument
            attributedText.enumerateAttributes(in: NSMakeRange(0, attributedText.length), options: [], using: { attributes, range, _ in
                if let _ = attributes[ChatTextInputAttributes.spoiler] {
                    func addSpoiler(startIndex: Int, endIndex: Int) {
                        if let start = textInputNode.textView.position(from: beginning, offset: startIndex), let end = textInputNode.textView.position(from: start, offset: endIndex - startIndex), let textRange = textInputNode.textView.textRange(from: start, to: end) {
                            let textRects = textInputNode.textView.selectionRects(for: textRange)
                            for textRect in textRects {
                                rects.append(textRect.rect.insetBy(dx: 1.0, dy: 1.0).offsetBy(dx: 0.0, dy: 1.0))
                            }
                        }
                    }
                    
                    var startIndex: Int?
                    var currentIndex: Int?
                    
                    let nsString = (attributedText.string as NSString)
                    nsString.enumerateSubstrings(in: range, options: .byComposedCharacterSequences) { substring, range, _, _ in
                        if let substring = substring, substring.rangeOfCharacter(from: .whitespacesAndNewlines) != nil {
                            if let currentStartIndex = startIndex {
                                startIndex = nil
                                let endIndex = range.location
                                addSpoiler(startIndex: currentStartIndex, endIndex: endIndex)
                            }
                        } else if startIndex == nil {
                            startIndex = range.location
                        }
                        currentIndex = range.location + range.length
                    }
                    
                    if let currentStartIndex = startIndex, let currentIndex = currentIndex {
                        startIndex = nil
                        let endIndex = currentIndex
                        addSpoiler(startIndex: currentStartIndex, endIndex: endIndex)
                    }
                }
            })
        }
        
        if !rects.isEmpty {
            let dustNode: InvisibleInkDustNode
            if let current = self.dustNode {
                dustNode = current
            } else {
                dustNode = InvisibleInkDustNode(textNode: nil)
                dustNode.alpha = self.spoilersRevealed ? 0.0 : 1.0
                dustNode.isUserInteractionEnabled = false
                textInputNode.textView.addSubview(dustNode.view)
                self.dustNode = dustNode
            }
            dustNode.frame = CGRect(origin: CGPoint(), size: textInputNode.textView.contentSize)
            dustNode.update(size: textInputNode.textView.contentSize, color: textColor, textColor: textColor, rects: rects, wordRects: rects)
        } else if let dustNode = self.dustNode {
            dustNode.removeFromSupernode()
            self.dustNode = nil
        }
    }
    
    private func updateSpoilersRevealed(animated: Bool = true) {
        guard let textInputNode = self.textInputNode else {
            return
        }
        
        let selectionRange = textInputNode.textView.selectedRange
        
        var revealed = false
        if let attributedText = textInputNode.attributedText {
            attributedText.enumerateAttributes(in: NSMakeRange(0, attributedText.length), options: [], using: { attributes, range, _ in
                if let _ = attributes[ChatTextInputAttributes.spoiler] {
                    if let _ = selectionRange.intersection(range) {
                        revealed = true
                    }
                }
            })
        }
            
        guard self.spoilersRevealed != revealed else {
            return
        }
        self.spoilersRevealed = revealed
        
        if revealed {
            self.updateInternalSpoilersRevealed(true, animated: animated)
        } else {
            Queue.mainQueue().after(1.5, {
                self.updateInternalSpoilersRevealed(false, animated: true)
            })
        }
    }
    
    private func updateInternalSpoilersRevealed(_ revealed: Bool, animated: Bool) {
        guard self.spoilersRevealed == revealed, let textInputNode = self.textInputNode, let presentationInterfaceState = self.presentationInterfaceState else {
            return
        }
        
        let textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
        let accentTextColor = presentationInterfaceState.theme.chat.inputPanel.panelControlAccentColor
        let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
        
        textInputNode.textView.isScrollEnabled = false
        
        refreshChatTextInputAttributes(textInputNode, theme: presentationInterfaceState.theme, baseFontSize: baseFontSize, spoilersRevealed: self.spoilersRevealed)
        
        textInputNode.attributedText = textAttributedStringForStateText(self.inputTextState.inputText, fontSize: baseFontSize, textColor: textColor, accentTextColor: accentTextColor, writingDirection: nil, spoilersRevealed: self.spoilersRevealed)
        
        if textInputNode.textView.subviews.count > 1, animated {
            let containerView = textInputNode.textView.subviews[1]
            if let canvasView = containerView.subviews.first {
                if let snapshotView = canvasView.snapshotView(afterScreenUpdates: false) {
                    snapshotView.frame = canvasView.frame.offsetBy(dx: 0.0, dy: -textInputNode.textView.contentOffset.y)
                    textInputNode.view.insertSubview(snapshotView, at: 0)
                    canvasView.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3)
                    snapshotView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.3, removeOnCompletion: false, completion: { [weak snapshotView, weak textInputNode] _ in
                        textInputNode?.textView.isScrollEnabled = false
                        snapshotView?.removeFromSuperview()
                        Queue.mainQueue().after(0.1) {
                            textInputNode?.textView.isScrollEnabled = true
                        }
                    })
                }
            }
        }
        Queue.mainQueue().after(0.1) {
            textInputNode.textView.isScrollEnabled = true
        }
    
        if animated {
            if revealed {
                let transition = ContainedViewLayoutTransition.animated(duration: 0.3, curve: .linear)
                if let dustNode = self.dustNode {
                    transition.updateAlpha(node: dustNode, alpha: 0.0)
                }
            } else {
                let transition = ContainedViewLayoutTransition.animated(duration: 0.3, curve: .linear)
                if let dustNode = self.dustNode {
                    transition.updateAlpha(node: dustNode, alpha: 1.0)
                }
            }
        } else if let dustNode = self.dustNode {
            dustNode.alpha = revealed ? 0.0 : 1.0
        }
    }
    
    private func updateCounterTextNode(transition: ContainedViewLayoutTransition) {
        let inputTextMaxLength: Int32?
        if self.isCaption || self.isAttachment {
            inputTextMaxLength = self.context.currentLimitsConfiguration.with { $0 }.maxMediaCaptionLength
        } else {
            inputTextMaxLength = nil
        }
        if let textInputNode = self.textInputNode, let presentationInterfaceState = self.presentationInterfaceState, let inputTextMaxLength = inputTextMaxLength {
            let textCount = Int32(textInputNode.textView.text.count)
            let counterColor: UIColor = textCount > inputTextMaxLength ? presentationInterfaceState.theme.chat.inputPanel.panelControlDestructiveColor : presentationInterfaceState.theme.chat.inputPanel.panelControlColor
            
            let remainingCount = max(-999, inputTextMaxLength - textCount)
            let counterText = remainingCount >= 5 ? "" : "\(remainingCount)"
            self.counterTextNode.attributedText = NSAttributedString(string: counterText, font: counterFont, textColor: counterColor)
        } else {
            self.counterTextNode.attributedText = NSAttributedString(string: "", font: counterFont, textColor: .black)
        }
        
        if let (width, leftInset, rightInset, _, maxHeight, metrics, _) = self.validLayout {
            let composeButtonsOffset: CGFloat = 0.0
            
            let (_, textFieldHeight) = self.calculateTextFieldMetrics(width: width - leftInset - rightInset, maxHeight: maxHeight, metrics: metrics)
            let panelHeight = self.panelHeight(textFieldHeight: textFieldHeight, metrics: metrics)
            var textFieldMinHeight: CGFloat = 33.0
            if let presentationInterfaceState = self.presentationInterfaceState {
                textFieldMinHeight = calclulateTextFieldMinHeight(presentationInterfaceState, metrics: metrics)
            }
            let minimalHeight: CGFloat = 14.0 + textFieldMinHeight
            
            let counterSize = self.counterTextNode.updateLayout(CGSize(width: 44.0, height: 44.0))
            let actionButtonsOriginX = width - rightInset - 43.0 - UIScreenPixel + composeButtonsOffset
            let counterFrame = CGRect(origin: CGPoint(x: actionButtonsOriginX, y: panelHeight - minimalHeight - counterSize.height + 3.0), size: CGSize(width: width - actionButtonsOriginX - rightInset, height: counterSize.height))
            transition.updateFrame(node: self.counterTextNode, frame: counterFrame)
        }
    }
    
    private func updateTextNodeText(animated: Bool) {
        var inputHasText = false
        if let textInputNode = self.textInputNode, let attributedText = textInputNode.attributedText, attributedText.length != 0 {
            inputHasText = true
        }
        
        if let presentationInterfaceState = self.presentationInterfaceState {
            self.textPlaceholderNode.isHidden = inputHasText
            
            let textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
            let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            let textFont = Font.regular(baseFontSize)
            let accentTextColor = presentationInterfaceState.theme.chat.inputPanel.panelControlAccentColor
                    
            let attributedText = textAttributedStringForStateText(self.inputTextState.inputText, fontSize: baseFontSize, textColor: textColor, accentTextColor: accentTextColor, writingDirection: nil, spoilersRevealed: false)
            
            let range = (attributedText.string as NSString).range(of: "\n")
            if range.location != NSNotFound {
                let trimmedText = NSMutableAttributedString(attributedString: attributedText.attributedSubstring(from: NSMakeRange(0, range.location)))
                trimmedText.append(NSAttributedString(string: "\u{2026}", font: textFont, textColor: textColor))
                
                self.oneLineNode.attributedText = trimmedText
            } else {
                self.oneLineNode.attributedText = attributedText
            }
        } else {
            self.oneLineNode.attributedText = nil
        }
        
        let panelHeight = self.updateTextHeight(animated: animated)
        if self.isAttachment, let panelHeight = panelHeight {
            self.updateFieldAndButtonsLayout(inputHasText: inputHasText, panelHeight: panelHeight, transition: .animated(duration: 0.2, curve: .easeInOut))
        }
    }
    
    private func updateOneLineSpoiler() {
        if let textLayout = self.oneLineNode.cachedLayout, !textLayout.spoilers.isEmpty {
            if self.oneLineDustNode == nil {
                let oneLineDustNode = InvisibleInkDustNode(textNode: nil)
                self.oneLineDustNode = oneLineDustNode
                self.oneLineNode.supernode?.insertSubnode(oneLineDustNode, aboveSubnode: self.oneLineNode)
                
            }
            if let oneLineDustNode = self.oneLineDustNode {
                let textFrame = self.oneLineNode.frame.insetBy(dx: 0.0, dy: -3.0)
                
                oneLineDustNode.update(size: textFrame.size, color: .white, textColor: .white, rects: textLayout.spoilers.map { $0.1.offsetBy(dx: 0.0, dy: 3.0) }, wordRects: textLayout.spoilerWords.map { $0.1.offsetBy(dx: 0.0, dy: 3.0) })
                oneLineDustNode.frame = textFrame
            }
        } else {
            if let oneLineDustNode = self.oneLineDustNode {
                self.oneLineDustNode = nil
                oneLineDustNode.removeFromSupernode()
            }
        }
    }
    
    private func updateTextHeight(animated: Bool) -> CGFloat? {
        if let (width, leftInset, rightInset, additionalSideInsets, maxHeight, metrics, _) = self.validLayout {
            let (_, textFieldHeight) = self.calculateTextFieldMetrics(width: width - leftInset - rightInset - additionalSideInsets.right, maxHeight: maxHeight, metrics: metrics)
            let panelHeight = self.panelHeight(textFieldHeight: textFieldHeight, metrics: metrics)
            if !self.bounds.size.height.isEqual(to: panelHeight) {
                self.updateHeight(animated)
                self.heightUpdated?(animated)
            }
            return panelHeight
        } else {
            return nil
        }
    }
    
    @objc public func editableTextNodeShouldReturn(_ editableTextNode: ASEditableTextNode) -> Bool {
        if self.actionButtons.sendButton.supernode != nil && !self.actionButtons.sendButton.isHidden && !self.actionButtons.sendButton.alpha.isZero {
            self.sendButtonPressed()
        }
        return false
    }
    
    private func applyUpdateSendButtonIcon() {
        if let interfaceState = self.presentationInterfaceState {
            let sendButtonHasApplyIcon = interfaceState.interfaceState.editMessage != nil
            
            if sendButtonHasApplyIcon != self.actionButtons.sendButtonHasApplyIcon {
                self.actionButtons.sendButtonHasApplyIcon = sendButtonHasApplyIcon
                if self.actionButtons.sendButtonHasApplyIcon {
                    self.actionButtons.sendButton.setImage(PresentationResourcesChat.chatInputPanelApplyIconImage(interfaceState.theme), for: [])
                } else {
                    if case .scheduledMessages = interfaceState.subject {
                        self.actionButtons.sendButton.setImage(PresentationResourcesChat.chatInputPanelScheduleButtonImage(interfaceState.theme), for: [])
                    } else {
                        self.actionButtons.sendButton.setImage(PresentationResourcesChat.chatInputPanelSendIconImage(interfaceState.theme), for: [])
                    }
                }
            }
        }
    }
    
    @objc public func editableTextNodeDidChangeSelection(_ editableTextNode: ASEditableTextNode, fromSelectedRange: NSRange, toSelectedRange: NSRange, dueToEditing: Bool) {
        if !dueToEditing && !self.updatingInputState {
            let inputTextState = self.inputTextState
            self.skipUpdate = true
            self.interfaceInteraction?.updateTextInputStateAndMode({ _, inputMode in return (inputTextState, inputMode) })
            self.skipUpdate = false
        }
        
        if let textInputNode = self.textInputNode, let presentationInterfaceState = self.presentationInterfaceState {
            if case .format = self.inputMenu.state {
                self.inputMenu.hide()
            }
            
            let baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            refreshChatTextInputTypingAttributes(textInputNode, theme: presentationInterfaceState.theme, baseFontSize: baseFontSize)
            
            self.updateSpoilersRevealed()
        }
    }
    
    @objc public func editableTextNodeDidBeginEditing(_ editableTextNode: ASEditableTextNode) {
        self.interfaceInteraction?.updateInputModeAndDismissedButtonKeyboardMessageId({ state in
            return (.text, state.keyboardButtonsMessage?.id)
        })
        self.inputMenu.activate()
        
        self.focusUpdated?(true)
        
        if self.isCaption, let (width, leftInset, rightInset, additionalSideInsets, maxHeight, metrics, isSecondary) = self.validLayout, let presentationInterfaceState = self.presentationInterfaceState {
            let _ = self.updateLayout(width: width, leftInset: leftInset, rightInset: rightInset, additionalSideInsets: additionalSideInsets, maxHeight: maxHeight, isSecondary: isSecondary, transition: .animated(duration: 0.3, curve: .easeInOut), interfaceState: presentationInterfaceState, metrics: metrics)
        }
    }
    
    public func editableTextNodeDidFinishEditing(_ editableTextNode: ASEditableTextNode) {
        self.storedInputLanguage = editableTextNode.textInputMode.primaryLanguage
        self.inputMenu.deactivate()
        
        self.focusUpdated?(false)
        
        if self.isCaption, let (width, leftInset, rightInset, additionalSideInsets, maxHeight, metrics, isSecondary) = self.validLayout, let presentationInterfaceState = self.presentationInterfaceState {
            let _ = self.updateLayout(width: width, leftInset: leftInset, rightInset: rightInset, additionalSideInsets: additionalSideInsets, maxHeight: maxHeight, isSecondary: isSecondary, transition: .animated(duration: 0.3, curve: .easeInOut), interfaceState: presentationInterfaceState, metrics: metrics)
        }
    }
    
    public func editableTextNodeTarget(forAction action: Selector) -> ASEditableTextNodeTargetForAction? {
        if action == makeSelectorFromString("_accessibilitySpeak:") {
            if case .format = self.inputMenu.state {
                return ASEditableTextNodeTargetForAction(target: nil)
            } else if let textInputNode = self.textInputNode, textInputNode.selectedRange.length > 0 {
                return ASEditableTextNodeTargetForAction(target: self)
            } else {
                return ASEditableTextNodeTargetForAction(target: nil)
            }
        } else if action == makeSelectorFromString("_accessibilitySpeakSpellOut:") {
            if case .format = self.inputMenu.state {
                return ASEditableTextNodeTargetForAction(target: nil)
            } else if let textInputNode = self.textInputNode, textInputNode.selectedRange.length > 0 {
                return nil
            } else {
                return ASEditableTextNodeTargetForAction(target: nil)
            }
        }
        else if action == makeSelectorFromString("_accessibilitySpeakLanguageSelection:") || action == makeSelectorFromString("_accessibilityPauseSpeaking:") || action == makeSelectorFromString("_accessibilitySpeakSentence:") {
            return ASEditableTextNodeTargetForAction(target: nil)
        } else if action == makeSelectorFromString("_showTextStyleOptions:") {
            if case .general = self.inputMenu.state {
                if let textInputNode = self.textInputNode, textInputNode.attributedText == nil || textInputNode.attributedText!.length == 0 || textInputNode.selectedRange.length == 0 {
                    return ASEditableTextNodeTargetForAction(target: nil)
                }
                return ASEditableTextNodeTargetForAction(target: self)
            } else {
                return ASEditableTextNodeTargetForAction(target: nil)
            }
        } else if action == #selector(self.formatAttributesBold(_:)) || action == #selector(self.formatAttributesItalic(_:)) || action == #selector(self.formatAttributesMonospace(_:)) || action == #selector(self.formatAttributesLink(_:)) || action == #selector(self.formatAttributesStrikethrough(_:)) || action == #selector(self.formatAttributesUnderline(_:)) || action == #selector(self.formatAttributesSpoiler(_:)) {
            if case .format = self.inputMenu.state {
                return ASEditableTextNodeTargetForAction(target: self)
            } else {
                return ASEditableTextNodeTargetForAction(target: nil)
            }
        }
        if case .format = self.inputMenu.state {
            return ASEditableTextNodeTargetForAction(target: nil)
        }
        return nil
    }
    
    @objc func _accessibilitySpeak(_ sender: Any) {
        var text = ""
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            text = current.inputText.attributedSubstring(from: NSMakeRange(current.selectionRange.lowerBound, current.selectionRange.count)).string
            return (current, inputMode)
        }
        let _ = speakText(context: self.context, text: text)
        
        if #available(iOS 13.0, *) {
            UIMenuController.shared.hideMenu()
        } else {
            UIMenuController.shared.isMenuVisible = false
            UIMenuController.shared.update()
        }
    }
    
    @objc func _showTextStyleOptions(_ sender: Any) {
        if let textInputNode = self.textInputNode {
            self.inputMenu.format(view: textInputNode.view, rect: textInputNode.selectionRect.offsetBy(dx: 0.0, dy: -textInputNode.textView.contentOffset.y).insetBy(dx: 0.0, dy: -1.0))
        }
    }
    
    @objc func formatAttributesBold(_ sender: Any) {
        self.inputMenu.back()
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.bold), inputMode)
        }
    }
    
    @objc func formatAttributesItalic(_ sender: Any) {
        self.inputMenu.back()
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.italic), inputMode)
        }
    }
    
    @objc func formatAttributesMonospace(_ sender: Any) {
        self.inputMenu.back()
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.monospace), inputMode)
        }
    }
    
    private var imitateFocus = false
    @objc func formatAttributesLink(_ sender: Any) {
        self.inputMenu.back()
        if self.isCaption {
            self.imitateFocus = true
        }
        self.interfaceInteraction?.openLinkEditing()
    }
    
    @objc func formatAttributesStrikethrough(_ sender: Any) {
        self.inputMenu.back()
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.strikethrough), inputMode)
        }
    }
    
    @objc func formatAttributesUnderline(_ sender: Any) {
        self.inputMenu.back()
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.underline), inputMode)
        }
    }
    
    @objc func formatAttributesSpoiler(_ sender: Any) {
        self.inputMenu.back()
        
        var animated = false
        if let attributedText = self.textInputNode?.attributedText {
            attributedText.enumerateAttributes(in: NSMakeRange(0, attributedText.length), options: [], using: { attributes, _, _ in
                if let _ = attributes[ChatTextInputAttributes.spoiler] {
                    animated = true
                }
            })
        }
        
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            return (chatTextInputAddFormattingAttribute(current, attribute: ChatTextInputAttributes.spoiler), inputMode)
        }
        
        self.updateSpoilersRevealed(animated: animated)
    }
    
    @objc public func editableTextNode(_ editableTextNode: ASEditableTextNode, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
        var cleanText = text
        let removeSequences: [String] = ["\u{202d}", "\u{202c}"]
        for sequence in removeSequences {
            inner: while true {
                if let range = cleanText.range(of: sequence) {
                    cleanText.removeSubrange(range)
                } else {
                    break inner
                }
            }
        }
                
        if cleanText != text {
            let string = NSMutableAttributedString(attributedString: editableTextNode.attributedText ?? NSAttributedString())
            var textColor: UIColor = .black
            var accentTextColor: UIColor = .blue
            var baseFontSize: CGFloat = 17.0
            if let presentationInterfaceState = self.presentationInterfaceState {
                textColor = presentationInterfaceState.theme.chat.inputPanel.inputTextColor
                accentTextColor = presentationInterfaceState.theme.chat.inputPanel.panelControlAccentColor
                baseFontSize = max(minInputFontSize, presentationInterfaceState.fontSize.baseDisplaySize)
            }
            let cleanReplacementString = textAttributedStringForStateText(NSAttributedString(string: cleanText), fontSize: baseFontSize, textColor: textColor, accentTextColor: accentTextColor, writingDirection: nil, spoilersRevealed: self.spoilersRevealed)
            string.replaceCharacters(in: range, with: cleanReplacementString)
            self.textInputNode?.attributedText = string
            self.textInputNode?.selectedRange = NSMakeRange(range.lowerBound + cleanReplacementString.length, 0)
            self.updateTextNodeText(animated: true)
            return false
        }
        return true
    }
    
    @objc public func editableTextNodeShouldCopy(_ editableTextNode: ASEditableTextNode) -> Bool {
        self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
            storeInputTextInPasteboard(current.inputText.attributedSubstring(from: NSMakeRange(current.selectionRange.lowerBound, current.selectionRange.count)))
            return (current, inputMode)
        }
        return false
    }
    
    @objc public func editableTextNodeShouldPaste(_ editableTextNode: ASEditableTextNode) -> Bool {
        let pasteboard = UIPasteboard.general
        
        var attributedString: NSAttributedString?
        if let data = pasteboard.data(forPasteboardType: kUTTypeRTF as String) {
            attributedString = chatInputStateStringFromRTF(data, type: NSAttributedString.DocumentType.rtf)
        } else if let data = pasteboard.data(forPasteboardType: "com.apple.flat-rtfd") {
            attributedString = chatInputStateStringFromRTF(data, type: NSAttributedString.DocumentType.rtfd)
        }
        
        if let attributedString = attributedString {
            self.interfaceInteraction?.updateTextInputStateAndMode { current, inputMode in
                if let inputText = current.inputText.mutableCopy() as? NSMutableAttributedString {
                    inputText.replaceCharacters(in: NSMakeRange(current.selectionRange.lowerBound, current.selectionRange.count), with: attributedString)
                    let updatedRange = current.selectionRange.lowerBound + attributedString.length
                    return (ChatTextInputState(inputText: inputText, selectionRange: updatedRange ..< updatedRange), inputMode)
                } else {
                    return (ChatTextInputState(inputText: attributedString), inputMode)
                }
            }
            return false
        }
        return true
    }
    
    @objc func sendButtonPressed() {
        let inputTextMaxLength: Int32?
        if self.isCaption || self.isAttachment {
            inputTextMaxLength = self.context.currentLimitsConfiguration.with { $0 }.maxMediaCaptionLength
        } else {
            inputTextMaxLength = nil
        }
        if let textInputNode = self.textInputNode, let inputTextMaxLength = inputTextMaxLength {
            let textCount = Int32(textInputNode.textView.text.count)
            let remainingCount = inputTextMaxLength - textCount

            if remainingCount < 0 {
                textInputNode.layer.addShakeAnimation()
                self.hapticFeedback.error()
                return
            }
        }
        if let sendPressed = self.sendPressed, let presentationInterfaceState = self.effectivePresentationInterfaceState?() {
            self.dismissInput()
            let effectiveInputText = presentationInterfaceState.interfaceState.composeInputState.inputText
            sendPressed(effectiveInputText)
            return
        }
        self.sendMessage(.generic)
    }
    
    @objc func textInputBackgroundViewTap(_ recognizer: UITapGestureRecognizer) {
        if case .ended = recognizer.state {
            self.ensureFocused()
        }
    }
    
    public var isFocused: Bool {
        if self.imitateFocus {
            return true
        }
        return self.textInputNode?.isFirstResponder() ?? false
    }
    
    public func ensureUnfocused() {
        self.textInputNode?.resignFirstResponder()
    }
    
    public func ensureFocused() {
        self.imitateFocus = false
        
        if self.textInputNode == nil {
            self.loadTextInputNode()
        }
        
        self.textInputNode?.becomeFirstResponder()
    }

    public func frameForInputActionButton() -> CGRect? {
        if !self.actionButtons.alpha.isZero {
            return self.actionButtons.frame.insetBy(dx: 0.0, dy: 6.0).offsetBy(dx: 4.0, dy: 0.0)
        }
        return nil
    }
}