Files
bundesmessenger-ios/bwi/ServerMaintenance/ServerDowntimeDefaultService.swift
2023-09-19 11:21:12 +00:00

417 lines
17 KiB
Swift

//
/*
* Copyright (c) 2021 BWI GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import Foundation
import UIKit
import MatrixSDK
import SwiftUI
fileprivate let BWI_ServerDowntimes = "BWI_ServerDowntimes"
fileprivate let BWI_ValidAppVersions = "BWI_ValidAppVersions"
fileprivate let exampleFile = "exampleDowntime"
fileprivate let maintenanceURL = "/_matrix/cmaintenance"
@objcMembers class ServerDowntimeDefaultService : NSObject {
var isCurrentDowntime: ServerDowntimeStatus = .none
static var manuallyIgnored: Bool = false
/// Find the next relevant downtime
/// - Returns: ServerDowntime or nil, if there is no downtime in the future or the warning date is still in the future
func nextDowntime() -> ServerDowntime? {
guard let encodedDowntimes = UserDefaults.standard.object(forKey: BWI_ServerDowntimes) as? [Data] else {
return nil
}
let serverDowntimes = encodedDowntimes
.compactMap { try? JSONDecoder().decode(ServerDowntime.self, from: $0) }
.filter {
// remove downtimes that are already done
guard let downtimeEndDate = $0.endTime.iso8601Date else {
return false
}
return downtimeEndDate.timeIntervalSinceNow >= 0
}
.filter {
// remove downtimes where the warning time is still in the future
guard let warningStartDate = $0.warningStartTime.iso8601Date else {
return false
}
return warningStartDate.timeIntervalSinceNow <= 0
}
.filter {
// remove downtimes with invalid formed start or end times
return $0.startTime.iso8601Date != nil && $0.endTime.iso8601Date != nil
}
.sorted {
// sort downtimes be startTime
guard let downtimeStartDate1 = $0.startTime.iso8601Date, let downtimeStartDate2 = $1.startTime.iso8601Date else {
return false
}
return downtimeStartDate1 < downtimeStartDate2
}
return serverDowntimes.first
}
/// Check the state of the next downtime
/// - Returns: ongoing, warning or none
func nextDowntimeStatus() -> ServerDowntimeStatus {
guard let downTime = self.nextDowntime() else {
return .none
}
if let startDate = downTime.startTime.iso8601Date {
if startDate.timeIntervalSinceNow < 0 {
return .ongoing
}
}
return .warning
}
private func loadTestMaintanceJSON(forName name: String) -> Data? {
if let path = Bundle.main.path(forResource: name, ofType: "json") {
do {
let jsonString = try String(contentsOfFile: path)
return jsonString.data(using: .utf8)
} catch {
print(error.localizedDescription)
}
}
return nil
}
// MARK: - Handle Server Response
func copyFetchResultToUserDefaults(fetchResult: [String : Any]) throws {
if let downtimes = fetchResult["downtime"] as? [[String : Any]] {
try copyServerDowntimesToUserDefaults(downtimes: downtimes)
}
if let versions = fetchResult["versions"] as? [String : Any] {
try copyValidAppVersionsToUserDefaults(versions: versions)
}
}
private func copyServerDowntimesToUserDefaults(downtimes: [[String : Any]]) throws {
var encodedDowntimes: [Data] = []
for downtimeDict in downtimes {
if let serverDowntime = try? ServerDowntime(dict: downtimeDict) {
let data = try JSONEncoder().encode(serverDowntime)
encodedDowntimes.append(data)
}
}
UserDefaults.standard.set(encodedDowntimes, forKey: BWI_ServerDowntimes)
}
private func copyValidAppVersionsToUserDefaults(versions: [String : Any]) throws {
if let iosVersionsDict = versions["ios"] as? [String : Any] {
if let validAppVersions = try? ValidAppVersions(dict: iosVersionsDict) {
let data = try JSONEncoder().encode(validAppVersions)
UserDefaults.standard.set(data, forKey: BWI_ValidAppVersions)
}
}
}
// MARK: - Mockup Fetch
func fetchDowntimes(completion: @escaping () -> Void) {
if let exampleFetch = loadTestMaintanceJSON(forName: exampleFile) {
do {
if let fetchResult = try JSONSerialization.jsonObject(with: exampleFetch, options: []) as? [String: Any] {
try copyFetchResultToUserDefaults(fetchResult: fetchResult)
}
} catch {
print(error.localizedDescription)
}
}
completion()
}
}
// MARK: -
extension ServerDowntimeDefaultService : ServerDowntimeService {
func alert(alertType: ServerMaintenanceAlertType, completion: @escaping () -> Void) -> Alert {
switch alertType {
case .showInvalidAppVersionAlert:
return Alert(title: Text(BWIL10n.bwiOutdatedVersionWarningTitle),
message: Text(BWIL10n.bwiOutdatedVersionWarningMessage(AppInfo.current.displayName)),
dismissButton: .destructive(Text(BWIL10n.bwiOutdatedVersionAppstoreButton), action: {
let iTunesLink = BWIBuildSettings.shared.itunesAppLink
UIApplication.shared.open(URL(string: iTunesLink)!, options: [:], completionHandler: nil)
}))
case .showDowntimeTimeAlert:
if BWIBuildSettings.shared.ignoreBlockingMaintenance && isBlocking() {
return Alert( title: Text(""),
message: Text(ServerDowntimeDefaultService().downtimeText()),
primaryButton: .cancel(Text(BWIL10n.blockingDowntimeAlertIgnoreButton)) {
UserDefaults.standard.set(false, forKey: "ServerDownTimeBlockingKey")
self.setManuallyIgnored()
completion()
},
secondaryButton: .destructive(Text(BWIL10n.blockingDowntimeAlertDismissButton))
)
} else {
return Alert(title: Text(BWIL10n.downtimeTitle),
message: Text(ServerDowntimeDefaultService().downtimeText() != "" ? BWIL10n.downtimeDefaultMessage + "\n\n" + ServerDowntimeDefaultService().downtimeText() : BWIL10n.downtimeDefaultMessage),
dismissButton: .destructive(Text(isBlocking() ? BWIL10n.blockingDowntimeAlertDismissButton : BWIL10n.downtimeAlertDismissButton)) {
if self.isBlocking() {
return
} else {
completion()
}
})
}
case .showServerMaintenanceInfoMessageAlert:
if BWIBuildSettings.shared.ignoreBlockingMaintenance && isBlocking() {
return Alert( title: Text(""),
message: Text(ServerDowntimeDefaultService().downtimeText()),
primaryButton: .cancel(Text(BWIL10n.blockingDowntimeAlertIgnoreButton)) {
completion()
},
secondaryButton: .destructive(Text(BWIL10n.blockingDowntimeAlertDismissButton))
)
} else {
return Alert(title: Text(""),
message: Text(ServerDowntimeDefaultService().downtimeText()),
dismissButton: .destructive(Text(isBlocking() ? BWIL10n.blockingDowntimeAlertDismissButton : BWIL10n.downtimeAlertDismissButton)) {
if self.isBlocking() {
return
} else {
completion()
}
})
}
case .showServerMaintenanceDefaultAlert:
return Alert(title: Text(BWIL10n.downtimeTitle),
message: Text(BWIL10n.downtimeDefaultMessage),
dismissButton: .destructive(Text(BWIL10n.downtimeAlertDismissButton)) {
completion()
})
}
}
func showAlert() -> Bool {
return nextDowntimeStatus() == .ongoing
}
func alertType() -> ServerMaintenanceAlertType {
if downtimeType() == .adhocMessage {
return .showServerMaintenanceInfoMessageAlert
} else {
return .showDowntimeTimeAlert
}
}
func fetchDowntimes(session: MXSession, completion: @escaping () -> Void) {
session.matrixRestClient.getDowntime(completion: { (jsonResponse, error) in
do {
if let fetchResult = jsonResponse as? [String : Any] {
try self.copyFetchResultToUserDefaults(fetchResult: fetchResult)
}
} catch {
print(error.localizedDescription)
}
completion()
})
}
func fetchDowntimesWithDirectRequest(localUrlString: String? = nil, completion: @escaping (Bool) -> Void) {
var urlString = AppConfigService.shared.serverUrl()
if let localUrlString = localUrlString {
urlString = localUrlString
}
guard let url = URL(string: urlString + maintenanceURL) else {
completion(false)
return
}
let config = URLSessionConfiguration.default
config.httpAdditionalHeaders = ["User-Agent": UserAgentService().bwiUserAgent]
let session : URLSession = URLSession(configuration: config)
session.configuration.requestCachePolicy = .reloadIgnoringLocalAndRemoteCacheData
let task = session.dataTask(with: url) { data, response, error in
guard let response = response as? HTTPURLResponse, response.statusCode == 200 else {
completion(false)
return
}
do {
if let data = data, let fetchResult = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] {
try self.copyFetchResultToUserDefaults(fetchResult: fetchResult)
}
} catch {
print(error.localizedDescription)
}
completion(true)
}
task.resume()
}
// MARK: -
@objc func isDowntimePresentable() -> Bool {
return nextDowntimeStatus() != .none
}
@objc func downtimeText() -> String {
guard let downTime = self.nextDowntime() else {
return ""
}
switch downtimeType() {
case .adhocMessage:
return downTime.description
case .maintenance:
guard let startDate = downTime.startTime.iso8601Date, let endDate = downTime.endTime.iso8601Date else {
return ""
}
let dayOfWeekFormatter = DateFormatter()
dayOfWeekFormatter.dateFormat = "EEEE"
dayOfWeekFormatter.timeZone = TimeZone.current
dayOfWeekFormatter.calendar = Calendar.current
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd.MM.yyyy"
dateFormatter.timeZone = TimeZone.current
dateFormatter.calendar = Calendar.current
let dateTimeFormatter = DateFormatter()
dateTimeFormatter.dateFormat = "dd.MM.yyyy HH:mm"
dateTimeFormatter.timeZone = TimeZone.current
dateTimeFormatter.calendar = Calendar.current
let timeFormatter = DateFormatter()
timeFormatter.dateFormat = "HH:mm"
timeFormatter.timeZone = TimeZone.current
timeFormatter.calendar = Calendar.current
let utcFormatter = DateFormatter()
utcFormatter.dateFormat = "ZZZZZ"
utcFormatter.timeZone = TimeZone.current
utcFormatter.calendar = Calendar.current
if self.isSameDay() {
return BWIL10n.settingsDowntimeMessageSameDay(AppInfo.current.displayName,
dayOfWeekFormatter.string(from: startDate),
dateFormatter.string(from: startDate),
timeFormatter.string(from: startDate),
timeFormatter.string(from: endDate),
utcFormatter.string(from: startDate)).appending(BWIBuildSettings.shared.showMaintenanceInfoMessageType ? "\n\n\(downTime.description)" : "")
} else {
return BWIL10n.settingsDowntimeMessageDifferentDays(AppInfo.current.displayName,
dayOfWeekFormatter.string(from: startDate),
dateTimeFormatter.string(from: startDate),
utcFormatter.string(from: startDate),
dayOfWeekFormatter.string(from: endDate),
dateTimeFormatter.string(from: endDate),
utcFormatter.string(from: endDate)).appending(BWIBuildSettings.shared.showMaintenanceInfoMessageType ? "\n\n\(downTime.description)" : "")
}
}
}
@objc func isDowntimeNow() -> Bool {
guard let downTime = self.nextDowntime(), let startDate = downTime.startTime.iso8601Date, let endDate = downTime.endTime.iso8601Date else {
return false
}
return startDate <= Date() && Date() <= endDate
}
@objc func downtimeColor() -> UIColor {
switch nextDowntimeStatus() {
case .warning:
return .yellow
case .ongoing:
if isBlocking() {
return .red
} else {
return .yellow
}
default:
return .clear
}
}
@objc func downtimeTextColor() -> UIColor {
switch nextDowntimeStatus() {
case .warning:
return .black
case .ongoing:
if isBlocking() {
return .white
} else {
return .black
}
default:
return .clear
}
}
func downtimeType() -> ServerDowntimeType {
guard let downTime = self.nextDowntime() else {
return ServerDowntimeType.maintenance
}
if BWIBuildSettings.shared.showMaintenanceInfoMessageType && downTime.type.elementsEqual(ServerDowntimeType.adhocMessage.rawValue) {
return ServerDowntimeType.adhocMessage
} else {
return ServerDowntimeType.maintenance
}
}
@objc func isSameDay() -> Bool {
guard let downTime = self.nextDowntime(), let startDate = downTime.startTime.iso8601Date, let endDate = downTime.endTime.iso8601Date else {
return false
}
return Calendar.current.dateComponents([.day], from: startDate, to: endDate).day == 0
}
@objc func isBlocking() -> Bool {
guard let downTime = self.nextDowntime() else {
return false
}
return downTime.blocking ?? false
}
func setManuallyIgnored() {
guard let downTime = self.nextDowntime(), let blocking = downTime.blocking else {
return
}
if blocking && BWIBuildSettings.shared.ignoreBlockingMaintenance {
ServerDowntimeDefaultService.manuallyIgnored = true
}
}
func isManuallyIgnored() -> Bool {
return ServerDowntimeDefaultService.manuallyIgnored
}
}