func onStateChanged()

in AzureCommunicationUI/sdk/AzureCommunicationUICalling/Sources/Service/Calling/AzureCommunicationCalling/CallingSDKEventsHandler.swift [236:285]
47 lines of code
9 McCabe index (conditional complexity)

    func onStateChanged(call: Call) {
        callIdSubject.send(call.id)
        let currentStatus = call.state.toCallingStatus()
        let internalError = call.callEndReason.toCompositeInternalError(wasCallConnected())
        if internalError != nil {
            let code = call.callEndReason.code
            let subcode = call.callEndReason.subcode
            logger.error("Receive vaildate CallEndReason:\(code), subcode:\(subcode)")
        }
        if currentStatus == .connected {
            self.captionsFeature = call.feature(Features.captions)
            self.captionsFeature?.getCaptions {(value, error) in
                if let error = error {
                    self.logger.error("Can not get the captions with error:\(error)")
                } else {
                    if value?.type == CaptionsType.communicationCaptions {
                        // communication captions
                        self.communicationCaptions = value as? CommunicationCaptions
                        self.communicationCaptions?.delegate = self.communicationCaptionsHandler
                        self.captionsSupportedSpokenLanguages.send(self.communicationCaptions?
                            .supportedSpokenLanguages ?? [])
                        self.captionsTypeChanged.send(.communication)
                    }

                    if value?.type == CaptionsType.teamsCaptions {
                        // teams captions
                        self.teamsCaptions = value as? TeamsCaptions
                        self.teamsCaptions?.delegate = self.teamsCaptionsHandler
                        self.captionsSupportedSpokenLanguages.send(self.teamsCaptions?.supportedSpokenLanguages ?? [])
                        self.captionsSupportedCaptionLanguages.send(self.teamsCaptions?.supportedCaptionLanguages ?? [])
                        self.captionsTypeChanged.send(.teams)
                    }
                }
            }
        }
        let callInfoModel = CallInfoModel(status: currentStatus,
                                          internalError: internalError,
                                          callEndReasonCode: Int(call.callEndReason.code),
                                          callEndReasonSubCode: Int(call.callEndReason.subcode))
        logger.debug( "callInfoModel \(callInfoModel.status)")
        logger.debug( "remoteParticipants \(call.remoteParticipants.count)")
        callInfoSubject.send(callInfoModel)
        if currentStatus == .connected || currentStatus == .connecting {
            addRemoteParticipants(call.remoteParticipants)
        }
        if currentStatus == .disconnected {
            call.delegate = nil
        }
        self.previousCallingStatus = currentStatus
    }