import Foundation
import UIKit
import AsyncDisplayKit
import Display
import SwiftSignalKit
import TelegramPresentationData
import TelegramStringFormatting
private let purple = UIColor(rgb: 0x3252ef)
private let pink = UIColor(rgb: 0xef436c)
private let latePurple = UIColor(rgb: 0x974aa9)
private let latePink = UIColor(rgb: 0xf0436c)
final class VoiceChatTimerNode: ASDisplayNode {
private let strings: PresentationStrings
private let dateTimeFormat: PresentationDateTimeFormat
private let titleNode: ImmediateTextNode
private let subtitleNode: ImmediateTextNode
private let timerNode: ImmediateTextNode
private let foregroundView = UIView()
private let foregroundGradientLayer = CAGradientLayer()
private let maskView = UIView()
private var validLayout: CGSize?
private var updateTimer: SwiftSignalKit.Timer?
private let hierarchyTrackingNode: HierarchyTrackingNode
private var isCurrentlyInHierarchy = false
private var isLate = false
init(strings: PresentationStrings, dateTimeFormat: PresentationDateTimeFormat) {
self.strings = strings
self.dateTimeFormat = dateTimeFormat
var updateInHierarchy: ((Bool) -> Void)?
self.hierarchyTrackingNode = HierarchyTrackingNode({ value in
updateInHierarchy?(value)
})
self.titleNode = ImmediateTextNode()
self.subtitleNode = ImmediateTextNode()
self.timerNode = ImmediateTextNode()
super.init()
self.addSubnode(self.hierarchyTrackingNode)
self.allowsGroupOpacity = true
self.isUserInteractionEnabled = false
self.foregroundGradientLayer.type = .radial
self.foregroundGradientLayer.colors = [pink.cgColor, purple.cgColor, purple.cgColor]
self.foregroundGradientLayer.locations = [0.0, 0.85, 1.0]
self.foregroundGradientLayer.startPoint = CGPoint(x: 1.0, y: 0.0)
self.foregroundGradientLayer.endPoint = CGPoint(x: 0.0, y: 1.0)
self.foregroundView.mask = self.maskView
self.foregroundView.layer.addSublayer(self.foregroundGradientLayer)
self.view.addSubview(self.foregroundView)
self.addSubnode(self.titleNode)
self.addSubnode(self.subtitleNode)
self.maskView.addSubnode(self.timerNode)
updateInHierarchy = { [weak self] value in
if let strongSelf = self {
strongSelf.isCurrentlyInHierarchy = value
strongSelf.updateAnimations()
}
}
}
deinit {
self.updateTimer?.invalidate()
}
func animateIn() {
self.foregroundView.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: 0.6, damping: 100.0)
}
private func updateAnimations() {
if self.isInHierarchy {
self.setupGradientAnimations()
} else {
self.foregroundGradientLayer.removeAllAnimations()
}
}
private func setupGradientAnimations() {
if let _ = self.foregroundGradientLayer.animation(forKey: "movement") {
} else {
let previousValue = self.foregroundGradientLayer.startPoint
let newValue = CGPoint(x: CGFloat.random(in: 0.65 ..< 0.85), y: CGFloat.random(in: 0.1 ..< 0.45))
self.foregroundGradientLayer.startPoint = newValue
CATransaction.begin()
let animation = CABasicAnimation(keyPath: "startPoint")
animation.duration = Double.random(in: 0.8 ..< 1.4)
animation.fromValue = previousValue
animation.toValue = newValue
CATransaction.setCompletionBlock { [weak self] in
if let isCurrentlyInHierarchy = self?.isCurrentlyInHierarchy, isCurrentlyInHierarchy {
self?.setupGradientAnimations()
}
}
self.foregroundGradientLayer.add(animation, forKey: "movement")
CATransaction.commit()
}
}
func update(size: CGSize, participants: Int32, groupingSeparator: String, transition: ContainedViewLayoutTransition) {
if self.validLayout == nil {
self.updateAnimations()
}
self.validLayout = size
self.foregroundView.frame = CGRect(origin: CGPoint(), size: size)
self.foregroundGradientLayer.frame = self.foregroundView.bounds
self.maskView.frame = self.foregroundView.bounds
let text: String = presentationStringsFormattedNumber(participants, groupingSeparator)
let subtitle = "listening"
self.titleNode.attributedText = NSAttributedString(string: "", font: Font.with(size: 23.0, design: .round, weight: .semibold, traits: []), textColor: .white)
let titleSize = self.titleNode.updateLayout(size)
self.titleNode.frame = CGRect(x: floor((size.width - titleSize.width) / 2.0), y: 48.0, width: titleSize.width, height: titleSize.height)
self.timerNode.attributedText = NSAttributedString(string: text, font: Font.with(size: 68.0, design: .round, weight: .semibold, traits: [.monospacedNumbers]), textColor: .white)
var timerSize = self.timerNode.updateLayout(CGSize(width: size.width + 100.0, height: size.height))
if timerSize.width > size.width - 32.0 {
self.timerNode.attributedText = NSAttributedString(string: text, font: Font.with(size: 60.0, design: .round, weight: .semibold, traits: [.monospacedNumbers]), textColor: .white)
timerSize = self.timerNode.updateLayout(CGSize(width: size.width + 100.0, height: size.height))
}
self.timerNode.frame = CGRect(x: floor((size.width - timerSize.width) / 2.0), y: 78.0, width: timerSize.width, height: timerSize.height)
self.subtitleNode.attributedText = NSAttributedString(string: subtitle, font: Font.with(size: 21.0, design: .round, weight: .semibold, traits: []), textColor: .white)
let subtitleSize = self.subtitleNode.updateLayout(size)
self.subtitleNode.frame = CGRect(x: floor((size.width - subtitleSize.width) / 2.0), y: 164.0, width: subtitleSize.width, height: subtitleSize.height)
self.foregroundView.frame = CGRect(origin: CGPoint(), size: size)
}
func update(size: CGSize, scheduleTime: Int32?, transition: ContainedViewLayoutTransition) {
if self.validLayout == nil {
self.updateAnimations()
}
self.validLayout = size
guard let scheduleTime = scheduleTime else {
return
}
self.foregroundView.frame = CGRect(origin: CGPoint(), size: size)
self.foregroundGradientLayer.frame = self.foregroundView.bounds
self.maskView.frame = self.foregroundView.bounds
let currentTime = Int32(CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970)
let elapsedTime = scheduleTime - currentTime
let timerText: String
if elapsedTime >= 86400 {
timerText = scheduledTimeIntervalString(strings: self.strings, value: elapsedTime)
} else {
timerText = textForTimeout(value: abs(elapsedTime))
if elapsedTime < 0 && !self.isLate {
self.isLate = true
self.foregroundGradientLayer.colors = [latePink.cgColor, latePurple.cgColor, latePurple.cgColor]
}
}
if self.updateTimer == nil {
let timer = SwiftSignalKit.Timer(timeout: 0.5, repeat: true, completion: { [weak self] in
if let strongSelf = self, let size = strongSelf.validLayout {
strongSelf.update(size: size, scheduleTime: scheduleTime, transition: .immediate)
}
}, queue: Queue.mainQueue())
self.updateTimer = timer
timer.start()
}
let subtitle = humanReadableStringForTimestamp(strings: self.strings, dateTimeFormat: self.dateTimeFormat, timestamp: scheduleTime, alwaysShowTime: true).string
self.titleNode.attributedText = NSAttributedString(string: elapsedTime < 0 ? self.strings.VoiceChat_LateBy : self.strings.VoiceChat_StartsIn, font: Font.with(size: 23.0, design: .round, weight: .semibold, traits: []), textColor: .white)
let titleSize = self.titleNode.updateLayout(size)
self.titleNode.frame = CGRect(x: floor((size.width - titleSize.width) / 2.0), y: 48.0, width: titleSize.width, height: titleSize.height)
self.timerNode.attributedText = NSAttributedString(string: timerText, font: Font.with(size: 68.0, design: .round, weight: .semibold, traits: [.monospacedNumbers]), textColor: .white)
var timerSize = self.timerNode.updateLayout(CGSize(width: size.width + 100.0, height: size.height))
if timerSize.width > size.width - 32.0 {
self.timerNode.attributedText = NSAttributedString(string: timerText, font: Font.with(size: 60.0, design: .round, weight: .semibold, traits: [.monospacedNumbers]), textColor: .white)
timerSize = self.timerNode.updateLayout(CGSize(width: size.width + 100.0, height: size.height))
}
self.timerNode.frame = CGRect(x: floor((size.width - timerSize.width) / 2.0), y: 78.0, width: timerSize.width, height: timerSize.height)
self.subtitleNode.attributedText = NSAttributedString(string: subtitle, font: Font.with(size: 21.0, design: .round, weight: .semibold, traits: []), textColor: .white)
let subtitleSize = self.subtitleNode.updateLayout(size)
self.subtitleNode.frame = CGRect(x: floor((size.width - subtitleSize.width) / 2.0), y: 164.0, width: subtitleSize.width, height: subtitleSize.height)
self.foregroundView.frame = CGRect(origin: CGPoint(), size: size)
}
}