70 lines
1.9 KiB
Swift
70 lines
1.9 KiB
Swift
// Created by Michael Kirk on 12/7/16.
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// Copyright © 2016 Open Whisper Systems. All rights reserved.
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import Foundation
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enum CallState: String {
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case idle
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case dialing
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case answering
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case remoteRinging
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case localRinging
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case connected
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case localFailure // terminal
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case localHangup // terminal
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case remoteHangup // terminal
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case remoteBusy // terminal
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}
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/**
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* Data model for a WebRTC backed voice/video call.
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*/
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@objc class SignalCall: NSObject {
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let TAG = "[SignalCall]"
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var state: CallState {
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didSet {
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Logger.debug("\(TAG) state changed: \(oldValue) -> \(state)")
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stateDidChange?(state)
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}
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}
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let signalingId: UInt64
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let remotePhoneNumber: String
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let localId: UUID
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var hasVideo = false
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var error: CallError?
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var stateDidChange: ((_ newState: CallState) -> Void)?
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init(localId: UUID, signalingId: UInt64, state: CallState, remotePhoneNumber: String) {
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self.localId = localId
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self.signalingId = signalingId
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self.state = state
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self.remotePhoneNumber = remotePhoneNumber
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}
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class func outgoingCall(localId: UUID, remotePhoneNumber: String) -> SignalCall {
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return SignalCall(localId: localId, signalingId: UInt64.ows_random(), state: .dialing, remotePhoneNumber: remotePhoneNumber)
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}
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class func incomingCall(localId: UUID, remotePhoneNumber: String, signalingId: UInt64) -> SignalCall {
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return SignalCall(localId: localId, signalingId: signalingId, state: .answering, remotePhoneNumber: remotePhoneNumber)
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}
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// MARK: Equatable
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static func == (lhs: SignalCall, rhs: SignalCall) -> Bool {
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return lhs.localId == rhs.localId
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}
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}
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fileprivate extension UInt64 {
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static func ows_random() -> UInt64 {
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var random: UInt64 = 0
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arc4random_buf(&random, MemoryLayout.size(ofValue: random))
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return random
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}
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}
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