session-ios/SessionMessagingKit/Messages/Control Messages/DataExtractionNotification....

107 lines
3.7 KiB
Swift

import SessionUtilitiesKit
public final class DataExtractionNotification : ControlMessage {
public var kind: Kind?
// MARK: Kind
public enum Kind : CustomStringConvertible {
case screenshot
case mediaSaved(timestamp: UInt64)
public var description: String {
switch self {
case .screenshot: return "screenshot"
case .mediaSaved: return "mediaSaved"
}
}
}
// MARK: Initialization
public override init() { super.init() }
internal init(kind: Kind) {
super.init()
self.kind = kind
}
// MARK: Validation
public override var isValid: Bool {
guard super.isValid, let kind = kind else { return false }
switch kind {
case .screenshot: return true
case .mediaSaved(let timestamp): return timestamp > 0
}
}
// MARK: Coding
public required init?(coder: NSCoder) {
super.init(coder: coder)
guard let rawKind = coder.decodeObject(forKey: "kind") as? String else { return nil }
switch rawKind {
case "screenshot":
self.kind = .screenshot
case "mediaSaved":
guard let timestamp = coder.decodeObject(forKey: "timestamp") as? UInt64 else { return nil }
self.kind = .mediaSaved(timestamp: timestamp)
default: return nil
}
}
public override func encode(with coder: NSCoder) {
super.encode(with: coder)
guard let kind = kind else { return }
switch kind {
case .screenshot:
coder.encode("screenshot", forKey: "kind")
case .mediaSaved(let timestamp):
coder.encode("mediaSaved", forKey: "kind")
coder.encode(timestamp, forKey: "timestamp")
}
}
// MARK: Proto Conversion
public override class func fromProto(_ proto: SNProtoContent) -> DataExtractionNotification? {
guard let dataExtractionNotification = proto.dataExtractionNotification else { return nil }
let kind: Kind
switch dataExtractionNotification.type {
case .screenshot: kind = .screenshot
case .mediaSaved:
let timestamp = dataExtractionNotification.hasTimestamp ? dataExtractionNotification.timestamp : 0
kind = .mediaSaved(timestamp: timestamp)
}
return DataExtractionNotification(kind: kind)
}
public override func toProto(using transaction: YapDatabaseReadWriteTransaction) -> SNProtoContent? {
guard let kind = kind else {
SNLog("Couldn't construct data extraction notification proto from: \(self).")
return nil
}
do {
let dataExtractionNotification: SNProtoDataExtractionNotification.SNProtoDataExtractionNotificationBuilder
switch kind {
case .screenshot:
dataExtractionNotification = SNProtoDataExtractionNotification.builder(type: .screenshot)
case .mediaSaved(let timestamp):
dataExtractionNotification = SNProtoDataExtractionNotification.builder(type: .mediaSaved)
dataExtractionNotification.setTimestamp(timestamp)
}
let contentProto = SNProtoContent.builder()
contentProto.setDataExtractionNotification(try dataExtractionNotification.build())
return try contentProto.build()
} catch {
SNLog("Couldn't construct data extraction notification proto from: \(self).")
return nil
}
}
// MARK: Description
public override var description: String {
"""
DataExtractionNotification(
kind: \(kind?.description ?? "null")
)
"""
}
}