import Foundation
import UIKit
import Display

struct PasscodeKeyboardLayout {
    let buttonSize: CGFloat
    let horizontalSecond: CGFloat
    let horizontalThird: CGFloat
    let verticalSecond: CGFloat
    let verticalThird: CGFloat
    let verticalFourth: CGFloat
    let size: CGSize
    let topOffset: CGFloat
    let biometricsOffset: CGFloat
    let deleteOffset: CGFloat
    
    fileprivate init(layout: ContainerViewLayout, metrics: DeviceMetrics?) {
        if let metrics = metrics {
            switch metrics {
                case .iPhone4:
                    self.buttonSize = 75.0
                    self.horizontalSecond = 95.0
                    self.horizontalThird = 190.0
                    self.verticalSecond = 88.0
                    self.verticalThird = 176.0
                    self.verticalFourth = 264.0
                    self.size = CGSize(width: 265.0, height: 339.0)
                    self.topOffset = 122.0
                    self.biometricsOffset = 0.0
                    self.deleteOffset = 45.0
                case .iPhone5:
                    self.buttonSize = 75.0
                    self.horizontalSecond = 95.0
                    self.horizontalThird = 190.0
                    self.verticalSecond = 88.0
                    self.verticalThird = 176.0
                    self.verticalFourth = 264.0
                    self.size = CGSize(width: 265.0, height: 339.0)
                    self.topOffset = 155.0
                    self.biometricsOffset = 23.0
                    self.deleteOffset = 20.0
                case .iPhone6:
                    self.buttonSize = 75.0
                    self.horizontalSecond = 103.0
                    self.horizontalThird = 206.0
                    self.verticalSecond = 90.0
                    self.verticalThird = 180.0
                    self.verticalFourth = 270.0
                    self.size = CGSize(width: 281.0, height: 348.0)
                    self.topOffset = 221.0
                    self.biometricsOffset = 30.0
                    self.deleteOffset = 20.0
                case .iPhone6Plus:
                    self.buttonSize = 85.0
                    self.horizontalSecond = 115.0
                    self.horizontalThird = 230.0
                    self.verticalSecond = 100.0
                    self.verticalThird = 200.0
                    self.verticalFourth = 300.0
                    self.size = CGSize(width: 315.0, height: 385.0)
                    self.topOffset = 226.0
                    self.biometricsOffset = 30.0
                    self.deleteOffset = 20.0
                case .iPhoneX:
                    self.buttonSize = 75.0
                    self.horizontalSecond = 103.0
                    self.horizontalThird = 206.0
                    self.verticalSecond = 91.0
                    self.verticalThird = 182.0
                    self.verticalFourth = 273.0
                    self.size = CGSize(width: 281.0, height: 348.0)
                    self.topOffset = 294.0
                    self.biometricsOffset = 30.0
                    self.deleteOffset = 20.0
                case .iPhoneXSMax:
                    self.buttonSize = 85.0
                    self.horizontalSecond = 115.0
                    self.horizontalThird = 230.0
                    self.verticalSecond = 100.0
                    self.verticalThird = 200.0
                    self.verticalFourth = 300.0
                    self.size = CGSize(width: 315.0, height: 385.0)
                    self.topOffset = 329.0
                    self.biometricsOffset = 30.0
                    self.deleteOffset = 20.0
                case .iPad, .iPadPro10Inch, .iPadPro11Inch, .iPadPro, .iPadPro3rdGen:
                    self.buttonSize = 81.0
                    self.horizontalSecond = 106.0
                    self.horizontalThird = 212.0
                    self.verticalSecond = 101.0
                    self.verticalThird = 202.0
                    self.verticalFourth = 303.0
                    self.size = CGSize(width: 293.0, height: 384.0)
                    self.topOffset = 120.0 + (layout.size.height - self.size.height - 120.0) / 2.0
                    self.biometricsOffset = 30.0
                    self.deleteOffset = 80.0
            }
        } else {
            self.buttonSize = 75.0
            self.horizontalSecond = 95.0
            self.horizontalThird = 190.0
            self.verticalSecond = 88.0
            self.verticalThird = 176.0
            self.verticalFourth = 264.0
            self.size = CGSize(width: 265.0, height: 339.0)
            self.topOffset = 0.0
            self.biometricsOffset = 30.0
            self.deleteOffset = 20.0
        }
    }
}

struct PasscodeLayout {
    let layout: ContainerViewLayout
    let keyboard: PasscodeKeyboardLayout
    let titleOffset: CGFloat
    let subtitleOffset: CGFloat
    let inputFieldOffset: CGFloat
    
    init(layout: ContainerViewLayout) {
        self.layout = layout
        
        let metrics = DeviceMetrics.forScreenSize(layout.size)
        self.keyboard = PasscodeKeyboardLayout(layout: layout, metrics: metrics)
        if let metrics = metrics {
            switch metrics {
                case .iPhone4:
                    self.titleOffset = 30.0
                    self.subtitleOffset = -13.0
                    self.inputFieldOffset = 70.0
                case .iPhone5:
                    self.titleOffset = 50.0
                    self.subtitleOffset = -7.0
                    self.inputFieldOffset = 90.0
                case .iPhone6:
                    self.titleOffset = 100.0
                    self.subtitleOffset = -3.0
                    self.inputFieldOffset = 144.0
                case .iPhone6Plus:
                    self.titleOffset = 112.0
                    self.subtitleOffset = -6.0
                    self.inputFieldOffset = 156.0
                case .iPhoneX:
                    self.titleOffset = 162.0
                    self.subtitleOffset = 0.0
                    self.inputFieldOffset = 206.0
                case .iPhoneXSMax:
                    self.titleOffset = 180.0
                    self.subtitleOffset = 0.0
                    self.inputFieldOffset = 226.0
                case .iPad, .iPadPro10Inch, .iPadPro11Inch, .iPadPro, .iPadPro3rdGen:
                    self.titleOffset = self.keyboard.topOffset - 120.0
                    self.subtitleOffset = -2.0
                    self.inputFieldOffset = self.keyboard.topOffset - 76.0
            }
        } else {
            self.titleOffset = 100.0
            self.subtitleOffset = 0.0
            self.inputFieldOffset = 140.0
        }
    }
    
    init(layout: ContainerViewLayout, titleOffset: CGFloat, subtitleOffset: CGFloat, inputFieldOffset: CGFloat) {
        self.layout = layout
        
        let metrics = DeviceMetrics.forScreenSize(layout.size)
        self.keyboard = PasscodeKeyboardLayout(layout: layout, metrics: metrics)
        self.titleOffset = titleOffset
        self.subtitleOffset = subtitleOffset
        self.inputFieldOffset = inputFieldOffset
    }
}