import Foundation
import UIKit
import AsyncDisplayKit
import Display
import TelegramCore
import Postbox
import SwiftSignalKit
import TelegramStringFormatting
import ChatPresentationInterfaceState
import TelegramPresentationData
import ChatInputPanelNode
import AccountContext
import GlassBackgroundComponent
import ComponentFlow
import ComponentDisplayAdapters

final class ChatRestrictedInputPanelNode: ChatInputPanelNode {
    private let backgroundView: GlassBackgroundView
    private let buttonNode: HighlightTrackingButtonNode
    private let textNode: ImmediateTextNode
    private let tintTextNode: ImmediateTextNode
    private let subtitleNode: ImmediateTextNode
    private let tintSubtitleNode: ImmediateTextNode
    private var iconView: UIImageView?
    
    private var presentationInterfaceState: ChatPresentationInterfaceState?
    
    override init() {
        self.backgroundView = GlassBackgroundView()
        
        self.textNode = ImmediateTextNode()
        self.textNode.maximumNumberOfLines = 2
        self.textNode.textAlignment = .center
        self.tintTextNode = ImmediateTextNode()
        self.tintTextNode.maximumNumberOfLines = 2
        self.tintTextNode.textAlignment = .center
        
        self.subtitleNode = ImmediateTextNode()
        self.subtitleNode.maximumNumberOfLines = 1
        self.subtitleNode.textAlignment = .center
        self.tintSubtitleNode = ImmediateTextNode()
        self.tintSubtitleNode.maximumNumberOfLines = 1
        self.tintSubtitleNode.textAlignment = .center
        
        self.buttonNode = HighlightTrackingButtonNode()
        self.buttonNode.isUserInteractionEnabled = false
        
        super.init()
        
        self.backgroundView.contentView.addSubview(self.textNode.view)
        self.backgroundView.maskContentView.addSubview(self.tintTextNode.view)
        self.backgroundView.contentView.addSubview(self.subtitleNode.view)
        self.backgroundView.maskContentView.addSubview(self.tintSubtitleNode.view)
        
        self.view.addSubview(self.backgroundView)
        self.addSubnode(self.buttonNode)
        
        self.buttonNode.highligthedChanged = { [weak self] highlighted in
            if let self {
                if highlighted {
                    self.iconView?.layer.removeAnimation(forKey: "opacity")
                    self.iconView?.alpha = 0.4
                    self.textNode.layer.removeAnimation(forKey: "opacity")
                    self.textNode.alpha = 0.4
                    self.subtitleNode.layer.removeAnimation(forKey: "opacity")
                    self.subtitleNode.alpha = 0.4
                } else {
                    self.iconView?.alpha = 1.0
                    self.iconView?.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                    self.textNode.alpha = 1.0
                    self.textNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                    self.subtitleNode.alpha = 1.0
                    self.subtitleNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
                }
            }
        }
        self.buttonNode.addTarget(self, action: #selector(self.buttonPressed), forControlEvents: .touchUpInside)
    }
    
    @objc private func buttonPressed() {
        self.interfaceInteraction?.openBoostToUnrestrict()
    }
    
    override func updateLayout(width: CGFloat, leftInset: CGFloat, rightInset: CGFloat, bottomInset: CGFloat, additionalSideInsets: UIEdgeInsets, maxHeight: CGFloat, maxOverlayHeight: CGFloat, isSecondary: Bool, transition: ContainedViewLayoutTransition, interfaceState: ChatPresentationInterfaceState, metrics: LayoutMetrics, isMediaInputExpanded: Bool) -> CGFloat {
        if self.presentationInterfaceState != interfaceState {
            self.presentationInterfaceState = interfaceState
        }
        
        var bannedPermission: (Int32, Bool)?
        if let channel = interfaceState.renderedPeer?.peer as? TelegramChannel {
            if let value = channel.hasBannedPermission(.banSendText) {
                bannedPermission = value
            } else if !channel.hasPermission(.sendSomething) {
                bannedPermission = (Int32.max, false)
            }
        } else if let group = interfaceState.renderedPeer?.peer as? TelegramGroup {
            if !group.hasPermission(.sendSomething) {
                bannedPermission = (Int32.max, false)
            }
        }
        
        var iconImage: UIImage?
        var iconSpacing: CGFloat = 4.0
        var isUserInteractionEnabled = false
        
        var accountFreezeConfiguration: AccountFreezeConfiguration?
        if let context = self.context {
            accountFreezeConfiguration = AccountFreezeConfiguration.with(appConfiguration: context.currentAppConfiguration.with { $0 })
        }
        if let channel = interfaceState.renderedPeer?.chatMainPeer as? TelegramChannel, channel.isMonoForum {
            self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelForumModeReplyText, font: Font.regular(15.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
        } else if let _ = accountFreezeConfiguration?.freezeUntilDate {
            self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelFrozenAccount_Title, font: Font.semibold(15.0), textColor: interfaceState.theme.list.itemDestructiveColor)
            self.subtitleNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelFrozenAccount_Text, font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
            isUserInteractionEnabled = true
        } else if case let .replyThread(message) = interfaceState.chatLocation, message.peerId == self.context?.account.peerId {
            self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelStatusAuthorHidden, font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
        } else if let threadData = interfaceState.threadData, threadData.isClosed {
            iconImage = PresentationResourcesChat.chatPanelLockIcon(interfaceState.theme)
            self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelTopicClosedText, font: Font.regular(15.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
        } else if let channel = interfaceState.renderedPeer?.peer as? TelegramChannel, channel.isForumOrMonoForum, case .peer = interfaceState.chatLocation {
            if let replyMessage = interfaceState.replyMessage, let threadInfo = replyMessage.associatedThreadInfo {
                self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_TopicIsClosedLabel(threadInfo.title).string, font: Font.regular(15.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
            } else {
                self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_PanelForumModeReplyText, font: Font.regular(15.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
            }
        } else if let (untilDate, personal) = bannedPermission {
            if personal && untilDate != 0 && untilDate != Int32.max {
                self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Conversation_RestrictedTextTimed(stringForFullDate(timestamp: untilDate, strings: interfaceState.strings, dateTimeFormat: interfaceState.dateTimeFormat)).string, font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
            } else if personal {
                self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Conversation_RestrictedText, font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
            } else {
                if (self.presentationInterfaceState?.boostsToUnrestrict ?? 0) > 0 {
                    iconSpacing = 0.0
                    iconImage = PresentationResourcesChat.chatPanelBoostIcon(interfaceState.theme)
                    self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Conversation_BoostToUnrestrictText, font: Font.regular(15.0), textColor: interfaceState.theme.chat.inputPanel.panelControlAccentColor)
                    isUserInteractionEnabled = true
                } else {
                    self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Conversation_DefaultRestrictedText, font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
                }
            }
        } else if case let .customChatContents(customChatContents) = interfaceState.subject {
            let displayCount: Int
            switch customChatContents.kind {
            case .hashTagSearch:
                displayCount = 0
            case .quickReplyMessageInput:
                displayCount = customChatContents.messageLimit ?? 20
            case .businessLinkSetup:
                displayCount = 0
            }
            self.textNode.attributedText = NSAttributedString(string: interfaceState.strings.Chat_QuickReplyMessageLimitReachedText(Int32(displayCount)), font: Font.regular(13.0), textColor: interfaceState.theme.chat.inputPanel.secondaryTextColor)
        }
        self.buttonNode.isUserInteractionEnabled = isUserInteractionEnabled
        
        self.tintTextNode.attributedText = NSAttributedString(string: self.textNode.attributedText?.string ?? "", font: Font.regular(15.0), textColor: .black)
        self.tintSubtitleNode.attributedText = NSAttributedString(string: self.subtitleNode.attributedText?.string ?? "", font: Font.regular(13.0), textColor: .black)
        
        let panelHeight = defaultHeight(metrics: metrics)
        let textSize = self.textNode.updateLayout(CGSize(width: width - leftInset - rightInset - 8.0 * 2.0, height: panelHeight))
        let subtitleSize = self.subtitleNode.updateLayout(CGSize(width: width - leftInset - rightInset - 8.0 * 2.0, height: panelHeight))
        
        var originX: CGFloat = leftInset + floor((width - leftInset - rightInset - textSize.width) / 2.0)
        
        if let iconImage {
            let iconView: UIImageView
            if let current = self.iconView {
                iconView = current
            } else {
                iconView = UIImageView()
                self.iconView = iconView
                self.view.addSubview(iconView)
            }
            iconView.image = iconImage
            
            let totalWidth = textSize.width + iconImage.size.width + iconSpacing
            iconView.frame = CGRect(origin: CGPoint(x: leftInset + floor((width - leftInset - rightInset - totalWidth) / 2.0), y: floor((panelHeight - textSize.height) / 2.0) + UIScreenPixel + floorToScreenPixels((textSize.height - iconImage.size.height) / 2.0)), size: iconImage.size)
            
            originX += iconImage.size.width + iconSpacing
        } else if let iconView = self.iconView {
            self.iconView = nil
            iconView.removeFromSuperview()
        }
        
        var combinedHeight: CGFloat = textSize.height
        if subtitleSize.height > 0.0 {
            combinedHeight += subtitleSize.height + 2.0
        }
        let textFrame = CGRect(origin: CGPoint(x: originX, y: floor((panelHeight - combinedHeight) / 2.0)), size: textSize)
        
        let subtitleFrame = CGRect(origin: CGPoint(x: leftInset + floor((width - leftInset - rightInset - subtitleSize.width) / 2.0), y: floor((panelHeight + combinedHeight) / 2.0) - subtitleSize.height), size: subtitleSize)
        
        var combinedFrame = textFrame.union(subtitleFrame).insetBy(dx: -12.0, dy: -6.0)
        combinedFrame.origin.y += 1.0
        
        self.textNode.frame = textFrame.offsetBy(dx: -combinedFrame.minX, dy: -combinedFrame.minY)
        self.tintTextNode.frame = self.textNode.frame
        
        self.subtitleNode.frame = subtitleFrame.offsetBy(dx: -combinedFrame.minX, dy: -combinedFrame.minY)
        self.tintSubtitleNode.frame = self.subtitleNode.frame
        
        self.backgroundView.frame = combinedFrame
        self.backgroundView.update(size: combinedFrame.size, cornerRadius: combinedFrame.height * 0.5, isDark: interfaceState.theme.overallDarkAppearance, tintColor: .init(kind: .panel, color: interfaceState.theme.chat.inputPanel.inputBackgroundColor.withMultipliedAlpha(0.7)), transition: ComponentTransition(transition))
        
        self.buttonNode.frame = combinedFrame
        
        return panelHeight
    }
    
    override func minimalHeight(interfaceState: ChatPresentationInterfaceState, metrics: LayoutMetrics) -> CGFloat {
        return defaultHeight(metrics: metrics)
    }
}