82 lines
3.6 KiB
Swift
82 lines
3.6 KiB
Swift
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@objc(SNContact)
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public class Contact : NSObject, NSCoding { // NSObject/NSCoding conformance is needed for YapDatabase compatibility
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@objc public let sessionID: String
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/// The display name of the contact.
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///
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/// - Note: In open groups use `openGroupDisplayName`.
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@objc public var displayName: String?
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/// The URL from which to fetch the contact's profile picture.
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@objc public var profilePictureURL: String?
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/// The file name of the contact's profile picture on local storage.
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@objc public var profilePictureFileName: String?
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/// The key with which the profile picture is encrypted.
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@objc public var profilePictureEncryptionKey: OWSAES256Key?
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/// The ID of the thread associated with this contact.
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@objc public var threadID: String?
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/// In open groups, where it's more likely that multiple users have the same name, we display a bit of the Session ID after
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/// a user's display name for added context.
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public var openGroupDisplayName: String? {
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guard let displayName = displayName else { return nil }
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let endIndex = sessionID.endIndex
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let cutoffIndex = sessionID.index(endIndex, offsetBy: -8)
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return "\(displayName) (...\(sessionID[cutoffIndex..<endIndex]))"
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}
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// MARK: Initialization
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@objc public init(sessionID: String) {
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self.sessionID = sessionID
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super.init()
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}
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private override init() { preconditionFailure("Use init(sessionID:) instead.") }
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// MARK: Validation
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public var isValid: Bool {
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if profilePictureURL != nil { return (profilePictureEncryptionKey != nil) }
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if profilePictureEncryptionKey != nil { return (profilePictureURL != nil) }
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return true
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}
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// MARK: Coding
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public required init?(coder: NSCoder) {
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guard let sessionID = coder.decodeObject(forKey: "sessionID") as! String? else { return nil }
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self.sessionID = sessionID
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if let displayName = coder.decodeObject(forKey: "displayName") as! String? { self.displayName = displayName }
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if let profilePictureURL = coder.decodeObject(forKey: "profilePictureURL") as! String? { self.profilePictureURL = profilePictureURL }
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if let profilePictureFileName = coder.decodeObject(forKey: "profilePictureFileName") as! String? { self.profilePictureFileName = profilePictureFileName }
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if let profilePictureEncryptionKey = coder.decodeObject(forKey: "profilePictureEncryptionKey") as! OWSAES256Key? { self.profilePictureEncryptionKey = profilePictureEncryptionKey }
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if let threadID = coder.decodeObject(forKey: "threadID") as! String? { self.threadID = threadID }
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}
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public func encode(with coder: NSCoder) {
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coder.encode(sessionID, forKey: "sessionID")
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coder.encode(displayName, forKey: "displayName")
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coder.encode(profilePictureURL, forKey: "profilePictureURL")
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coder.encode(profilePictureFileName, forKey: "profilePictureFileName")
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coder.encode(profilePictureEncryptionKey, forKey: "profilePictureEncryptionKey")
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coder.encode(threadID, forKey: "threadID")
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}
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// MARK: Equality
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override public func isEqual(_ other: Any?) -> Bool {
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guard let other = other as? Contact else { return false }
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return sessionID == other.sessionID
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}
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// MARK: Hashing
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override public var hash: Int { // Override NSObject.hash and not Hashable.hashValue or Hashable.hash(into:)
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return sessionID.hash
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}
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// MARK: Description
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override public var description: String {
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if let displayName = displayName {
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return displayName
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} else {
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return sessionID
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}
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}
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}
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