CallViewModel.swift 12.8 KB
Newer Older
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/*
 *  Copyright (C) 2017 Savoir-faire Linux Inc.
 *
 *  Author: Silbino Gonçalves Matado <silbino.gmatado@savoirfairelinux.com>
 *  Author: Kateryna Kostiuk <kateryna.kostiuk@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
 */

import RxSwift
import SwiftyBeaver
import Contacts
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
25
import RxCocoa
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
26 27 28 29 30 31 32 33 34 35 36 37

class CallViewModel: Stateable, ViewModel {

    //stateable
    private let stateSubject = PublishSubject<State>()
    lazy var state: Observable<State> = {
        return self.stateSubject.asObservable()
    }()

    fileprivate let callService: CallsService
    fileprivate let contactsService: ContactsService
    fileprivate let accountService: AccountsService
38
    fileprivate let videoService: VideoService
39 40
    fileprivate let audioService: AudioService

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
41 42 43
    private let disposeBag = DisposeBag()
    fileprivate let log = SwiftyBeaver.self

44 45 46
    var isHeadsetConnected = false
    var isAudioOnly = false

47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
    var call: CallModel? {
        didSet {
            guard let call = self.call else {
                return
            }
            self.contactsService.getProfileForUri(uri: call.participantRingId)
                .subscribe(onNext: { [unowned self] profile in
                    self.profileUpdated(profile: profile)
                })
                .disposed(by: self.disposeBag)

            self.callService
                .sharedResponseStream
                .filter({ (event) in
                    if let uri: String = event.getEventInput(ServiceEventInput.uri) {
                        return event.eventType == ServiceEventType.profileUpdated
                            && uri == call.participantRingId
                    }
                    return false
                })
                .subscribe(onNext: { [unowned self] _ in
                    self.contactsService.getProfileForUri(uri: call.participantRingId)
                        .subscribe(onNext: { profile in
                            self.profileUpdated(profile: profile)
                        })
                        .disposed(by: self.disposeBag)
                })
                .disposed(by: disposeBag)
75 76 77

            isHeadsetConnected = self.audioService.isHeadsetConnected.value
            isAudioOnly = call.isAudioOnly
78 79
        }
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
80 81 82

    // data for ViewCintroller binding

83 84
    var contactImageData = Variable<Data?>(nil)

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
85 86 87 88 89 90 91 92 93 94 95
    lazy var incomingFrame: Observable<UIImage?> = {
        return videoService.incomingVideoFrame.asObservable().map({ frame in
            return frame
        })
    }()
    lazy var capturedFrame: Observable<UIImage?> = {
        return videoService.capturedVideoFrame.asObservable().map({ frame in
            return frame
        })
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
96 97 98 99 100 101 102 103
    lazy var dismisVC: Observable<Bool> = {
        return callService.currentCall.map({[weak self] call in
            return call.state == .over || call.state == .failure && call.callId == self?.call?.callId
        }).map({ hide in
            return hide
        })
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
104
    lazy var contactName: Driver<String> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
105 106 107 108 109 110 111 112 113 114
        return callService.currentCall.filter({ [weak self] call in
            return call.state != .over && call.state != .inactive && call.callId == self?.call?.callId
        }).map({ call in
            if !call.displayName.isEmpty {
                return call.displayName
            } else if !call.registeredName.isEmpty {
                return call.registeredName
            } else {
                return L10n.Calls.unknown
            }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
115
        }).asDriver(onErrorJustReturn: "")
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
116 117
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
118 119
    //let timer: Observable<String>

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
120
    lazy var callDuration: Driver<String> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
121 122 123 124 125 126 127 128
        let timer = Observable<Int>.interval(1, scheduler: MainScheduler.instance)
            .takeUntil(self.callService.currentCall
                .filter { [weak self] call in
                    call.state == .over &&
                        call.callId == self?.call?.callId
            })
            .map({ elapsed in
                return CallViewModel.formattedDurationFrom(interval: elapsed)
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
129 130 131 132
            }).share()
        return self.callService.currentCall.filter({ [weak self] call in
            return call.state == .current &&
                call.callId == self?.call?.callId
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
133 134
        }).flatMap({ _ in
            return timer
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
135
        }).asDriver(onErrorJustReturn: "")
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
136 137 138 139
    }()

    lazy var bottomInfo: Observable<String> = {
        return callService.currentCall.map({ [weak self] call in
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
140 141 142
            if call.state == .connecting || call.state == .ringing &&
                call.callType == .outgoing &&
                call.callId == self?.call?.callId {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
143 144 145 146 147 148 149 150
                return L10n.Calls.calling
            } else if call.state == .over {
                return L10n.Calls.callFinished
            } else {
                return ""
            }
        })
    }()
151

152 153 154 155 156 157 158 159 160
    lazy var showCallOptions: Observable<Bool> = {
        return Observable.combineLatest(self.screenTapped.asObservable(), callPaused) { (tapped, paused) in
            if self.isAudioOnly {
                return false
            }
            if tapped && !paused {
                return true
            }
            return false
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
161 162 163
        }
    }()

164 165 166
    lazy var showCancelOption: Observable<Bool> = {
        return self.callService.currentCall.map({ call in
            return call.state == .connecting || call.state == .ringing
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
167 168 169 170 171
        })
    }()

    var screenTapped = BehaviorSubject(value: false)

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
172 173 174 175
    lazy var videoButtonState: Observable<UIImage?> = {
        let onImage = UIImage(asset: Asset.videoRunning)
        let offImage = UIImage(asset: Asset.videoMuted)

176 177 178
        return self.videoMuted.map({ [unowned self] muted in
            let audioOnly = self.call?.isAudioOnly ?? false
            if audioOnly || muted {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205
                return offImage
            }
            return onImage
        })
    }()

    lazy var videoMuted: Observable<Bool> = {
        return self.callService.currentCall.filter({ call in
            call.callId == self.call?.callId &&
                call.state == .current
        }).map({call in
            return call.videoMuted
        })
    }()

    lazy var audioButtonState: Observable<UIImage?> = {
        let onImage = UIImage(asset: Asset.audioRunning)
        let offImage = UIImage(asset: Asset.audioMuted)

        return self.audioMuted.map({ muted in
            if muted {
                return offImage
            }
            return onImage
        })
    }()

206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227
    lazy var speakerButtonState: Observable<UIImage?> = {
        let offImage = UIImage(asset: Asset.disableSpeakerphone)
        let onImage = UIImage(asset: Asset.enableSpeakerphone)

        return self.isOutputToSpeaker
            .map({ speaker in
                if speaker {
                    return onImage
                }
                return offImage
            })
    }()

    lazy var isOutputToSpeaker: Observable<Bool> = {
        return self.audioService.isOutputToSpeaker.asObservable()
    }()

    lazy var speakerSwitchable: Observable<Bool> = {
        return self.audioService.isHeadsetConnected.asObservable()
            .map { value in return !value }
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
228 229 230 231 232 233 234 235 236
    lazy var audioMuted: Observable<Bool> = {
        return self.callService.currentCall.filter({ call in
            call.callId == self.call?.callId &&
                call.state == .current
        }).map({call in
            return call.audioMuted
        })
    }()

237
    lazy var pauseCallButtonState: Observable<UIImage?> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263
        let unpauseCall = UIImage(asset: Asset.unpauseCall)
        let pauseCall = UIImage(asset: Asset.pauseCall)

        return self.callPaused.map({ muted in
            if muted {
                return unpauseCall
            }
            return pauseCall
        })
    }()

    lazy var callPaused: Observable<Bool> = {
        return self.callService.currentCall.filter({ call in
            call.callId == self.call?.callId &&
                (call.state == .hold ||
                    call.state == .unhold ||
                    call.state == .current)
        }).map({call in
            if  call.state == .hold ||
                (call.state == .current && call.peerHolding) {
                return true
            }
            return false
        })
    }()

264 265 266 267
    lazy var containerViewModel: ButtonsContainerViewModel = {
        return ButtonsContainerViewModel(with: self.callService, callID: (self.call?.callId)!)
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
268 269 270 271
    required init(with injectionBag: InjectionBag) {
        self.callService = injectionBag.callService
        self.contactsService = injectionBag.contactsService
        self.accountService = injectionBag.accountService
272
        self.videoService = injectionBag.videoService
273
        self.audioService = injectionBag.audioService
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
274
    }
275

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
    static func formattedDurationFrom(interval: Int) -> String {
        let seconds = interval % 60
        let minutes = (interval / 60) % 60
        let hours = (interval / 3600)
        return String(format: "%02d:%02d:%02d", hours, minutes, seconds)
    }

    func cancelCall() {
        guard let call = self.call else {
            return
        }
        self.callService.hangUp(callId: call.callId)
            .subscribe(onCompleted: { [weak self] in
                self?.log.info("Call canceled")
                }, onError: { [weak self] error in
                    self?.log.error("Failed to cancel the call")
            }).disposed(by: self.disposeBag)
    }

    func answerCall() {
        guard let call = self.call else {
            return
        }
        self.callService.accept(callId: call.callId)
            .subscribe(onCompleted: { [weak self] in
                self?.log.info("Call answered")
                }, onError: { [weak self] error in
                    self?.log.error("Failed to answer the call")
            }).disposed(by: self.disposeBag)
    }

307
    func placeCall(with uri: String, userName: String, isAudioOnly: Bool = false) {
308

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
309 310 311
        guard let account = self.accountService.currentAccount else {
            return
        }
312 313 314 315 316
        if isAudioOnly {
            self.audioService.overrideToReceiver()
        } else {
            self.audioService.overrideToSpeaker()
        }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
317 318
        self.callService.placeCall(withAccount: account,
                                   toRingId: uri,
319 320
                                   userName: userName,
                                   isAudioOnly: isAudioOnly)
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
321 322 323 324
            .subscribe(onSuccess: { [unowned self] callModel in
                self.call = callModel
            }).disposed(by: self.disposeBag)
    }
325 326 327 328 329

    func profileUpdated(profile: Profile) {
        guard let photo = profile.photo else {
            return
        }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
330 331 332
        guard let data = NSData(base64Encoded: photo,
                                options: NSData.Base64DecodingOptions.ignoreUnknownCharacters) as Data? else {
                                    return
333 334 335
        }
        self.contactImageData.value = data
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
336 337 338 339

    func respondOnTap() {
        self.screenTapped.onNext(true)
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
340 341 342

    // MARK: call options

343
    func togglePauseCall() {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
        guard let call = self.call else {
            return
        }
        if call.state == .current {
            self.callService.hold(callId: call.callId)
                .subscribe(onCompleted: { [weak self] in
                    self?.log.info("call paused")
                    }, onError: { [weak self](error) in
                        self?.log.info(error)
                }).disposed(by: self.disposeBag)
        } else if call.state == .hold {
            self.callService.unhold(callId: call.callId)
                .subscribe(onCompleted: { [weak self] in
                    self?.log.info("call unpaused")
                    }, onError: { [weak self](error) in
                        self?.log.info(error)
                }).disposed(by: self.disposeBag)
        }
    }

364
    func toggleMuteAudio() {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
365 366 367 368 369 370 371
        guard let call = self.call else {
            return
        }
        let mute = !call.audioMuted
        self.callService.muteAudio(call: call.callId, mute: mute)
    }

372
    func toggleMuteVideo() {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
373 374 375 376 377 378 379 380 381 382
        guard let call = self.call else {
            return
        }
        let mute = !call.videoMuted
        self.callService.muteVideo(call: call.callId, mute: mute)
    }

    func switchCamera() {
        self.videoService.switchCamera()
    }
383 384 385 386

    func switchSpeaker() {
        self.audioService.switchSpeaker()
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
387
}