133 lines
3.9 KiB
Swift
Executable File
133 lines
3.9 KiB
Swift
Executable File
import Vapor
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private var eventLogHandle: FileHandle?
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private var registeredGuests = Set<String>()
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private var declinedGuests = Set<String>()
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private var guestListPath: URL!
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private var declinedListPath: URL!
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let df: DateFormatter = {
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let df = DateFormatter()
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df.dateFormat = "dd.MM. HH:mm"
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return df
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}()
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func add(guest: String) -> String {
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registeredGuests.insert(guest)
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declinedGuests.remove(guest)
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defer { saveLists() }
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return log(event: "\(guest) registered")
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}
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func remove(guest: String) -> String {
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registeredGuests.remove(guest)
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declinedGuests.insert(guest)
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defer { saveLists() }
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return log(event: "\(guest) declined")
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}
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private func saveLists() {
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saveList(registeredGuests, named: "guest", to: guestListPath)
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saveList(declinedGuests, named: "declined", to: declinedListPath)
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}
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private func saveList(_ set: Set<String>, named name: String, to url: URL) {
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guard let list = set.sorted().joined(separator: "\n").data(using: .utf8) else {
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print("Failed to save \(name) list, no data")
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return
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}
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do {
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try list.write(to: url)
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print("Saved \(name) list with \(set.count) entries")
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} catch {
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print("Failed to write \(name) list: \(error)")
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}
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}
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private func loadList(from url: URL) throws -> Set<String> {
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let users = try String(contentsOf: url)
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.split(separator: "\n")
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.map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
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.filter { !$0.isEmpty }
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print("Loaded list \(url.path) (\(users.count) entries)")
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return .init(users)
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}
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private func log(event: String) -> String {
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guard let handle = eventLogHandle else {
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return "No handle"
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}
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let date = Date()
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let dateString = df.string(from: date)
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guard let entry = "[\(dateString)] \(event)\n".data(using: .utf8) else {
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return "Invalid name"
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}
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guard #available(macOS 10.15.4, *) else {
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handle.write(entry)
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handle.synchronizeFile()
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return "Success"
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}
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do {
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try handle.write(contentsOf: entry)
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handle.synchronizeFile()
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return "Success"
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} catch {
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return "Save failed"
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}
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}
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private func createFileIfNeeded(at path: URL) throws {
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guard !FileManager.default.fileExists(atPath: path.path) else {
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return
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}
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try Data().write(to: path)
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}
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// configures your application
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public func configure(_ app: Application) throws {
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// uncomment to serve files from /Public folder
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// app.middleware.use(FileMiddleware(publicDirectory: app.directory.publicDirectory))
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app.http.server.configuration.port = 9001
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// let eventLog = app.directory.publicDirectory + "events.txt"
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// let guestList = app.directory.publicDirectory + "registered.txt"
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// let declinedList = app.directory.publicDirectory + "declined.txt"
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let eventLog = "/blog/site/lists/events.txt"
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let guestList = "/blog/site/lists/registered.txt"
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let declinedList = "/blog/site/lists/declined.txt"
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let eventLogPath = URL(fileURLWithPath: eventLog)
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guestListPath = URL(fileURLWithPath: guestList)
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declinedListPath = URL(fileURLWithPath: declinedList)
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// Create the files
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try createFileIfNeeded(at: eventLogPath)
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try createFileIfNeeded(at: guestListPath)
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try createFileIfNeeded(at: declinedListPath)
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// Create handle to write events
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eventLogHandle = FileHandle(forWritingAtPath: eventLog)
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if #available(macOS 10.15.4, *) {
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try eventLogHandle?.seekToEnd()
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} else {
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// Fallback on earlier versions
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eventLogHandle?.seekToEndOfFile()
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}
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registeredGuests = try loadList(from: guestListPath)
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declinedGuests = try loadList(from: declinedListPath)
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// register routes
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try routes(app)
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let date = Date()
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let dateString = df.string(from: date)
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print("[\(dateString)] Server started: \(registeredGuests.count) registered, \(declinedGuests.count) declined, event log open: \(eventLogHandle != nil)")
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}
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