CallViewModel.swift 11.3 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
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
39 40 41
    private let disposeBag = DisposeBag()
    fileprivate let log = SwiftyBeaver.self

42 43 44 45 46 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
    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)
        }
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
72 73 74

    // data for ViewCintroller binding

75 76
    var contactImageData = Variable<Data?>(nil)

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
77 78 79 80 81 82 83 84 85 86 87
    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
88 89 90 91 92 93 94 95
    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
96
    lazy var contactName: Driver<String> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
97 98 99 100 101 102 103 104 105 106
        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
107
        }).asDriver(onErrorJustReturn: "")
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
108 109
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
110 111
    //let timer: Observable<String>

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
112
    lazy var callDuration: Driver<String> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
113 114 115 116 117 118 119 120
        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
121 122 123 124
            }).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
125 126
        }).flatMap({ _ in
            return timer
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
127
        }).asDriver(onErrorJustReturn: "")
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
128 129 130 131
    }()

    lazy var bottomInfo: Observable<String> = {
        return callService.currentCall.map({ [weak self] call in
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
132 133 134
            if call.state == .connecting || call.state == .ringing &&
                call.callType == .outgoing &&
                call.callId == self?.call?.callId {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
135 136 137 138 139 140 141 142
                return L10n.Calls.calling
            } else if call.state == .over {
                return L10n.Calls.callFinished
            } else {
                return ""
            }
        })
    }()
143

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
144
    lazy  var showCallOptions: Observable<Bool> = {
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
145 146 147
        return Observable.combineLatest(self.callIsActive,
                                        self.screenTapped.asObservable()) {(active, tapped) -> Bool in
                                            return active && tapped
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
148 149 150 151 152 153 154 155 156 157 158 159 160
        }
    }()

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

    var screenTapped = BehaviorSubject(value: false)

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229
    lazy var videoButtonState: Observable<UIImage?> = {
        let onImage = UIImage(asset: Asset.videoRunning)
        let offImage = UIImage(asset: Asset.videoMuted)

        return self.videoMuted.map({ muted in
            if muted {
                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
        })
    }()

    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
        })
    }()

    lazy var callButtonState: Observable<UIImage?> = {
        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
        })
    }()

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
230 231 232 233
    required init(with injectionBag: InjectionBag) {
        self.callService = injectionBag.callService
        self.contactsService = injectionBag.contactsService
        self.accountService = injectionBag.accountService
234
        self.videoService = injectionBag.videoService
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267
    }
    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)
    }

    func placeCall(with uri: String, userName: String) {
268

Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
269 270 271 272 273 274 275 276 277 278
        guard let account = self.accountService.currentAccount else {
            return
        }
        self.callService.placeCall(withAccount: account,
                                   toRingId: uri,
                                   userName: userName)
            .subscribe(onSuccess: { [unowned self] callModel in
                self.call = callModel
            }).disposed(by: self.disposeBag)
    }
279 280 281 282 283

    func profileUpdated(profile: Profile) {
        guard let photo = profile.photo else {
            return
        }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
284 285 286
        guard let data = NSData(base64Encoded: photo,
                                options: NSData.Base64DecodingOptions.ignoreUnknownCharacters) as Data? else {
                                    return
287 288 289
        }
        self.contactImageData.value = data
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
290 291 292 293

    func respondOnTap() {
        self.screenTapped.onNext(true)
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336

    // MARK: call options

    func pauseCall() {
        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)
        }
    }

    func muteAudio() {
        guard let call = self.call else {
            return
        }
        let mute = !call.audioMuted
        self.callService.muteAudio(call: call.callId, mute: mute)
    }

    func muteVideo() {
        guard let call = self.call else {
            return
        }
        let mute = !call.videoMuted
        self.callService.muteVideo(call: call.callId, mute: mute)
    }

    func switchCamera() {
        self.videoService.switchCamera()
    }
Kateryna Kostiuk's avatar
Kateryna Kostiuk committed
337
}