import TwilioVoice from 'react-native-twilio-programmable-voice'

// ...

// initialize the Programmable Voice SDK passing an access token obtained from the server.
// Listen to deviceReady and deviceNotReady events to see whether the initialization succeeded.
async function initTelephony() {
    try {
        const accessToken = await getAccessTokenFromServer()
        const success = await TwilioVoice.initWithToken(accessToken)
    } catch (err) {
        console.err(err)
    }
}

function initTelephonyWithToken(token) {
    TwilioVoice.initWithAccessToken(token)

    // iOS only, configure CallKit
    try {
        TwilioVoice.configureCallKit({
            appName:       'TwilioVoiceExample',                  // Required param
            imageName:     'my_image_name_in_bundle',             // OPTIONAL
            ringtoneSound: 'my_ringtone_sound_filename_in_bundle' // OPTIONAL
        })
    } catch (err) {
        console.err(err)
    }
}

// add listeners (flowtype notation)
TwilioVoice.addEventListener('deviceReady', function() {
    // no data
})
TwilioVoice.addEventListener('deviceNotReady', function(data) {
    // {
    //     err: string
    // }
})
TwilioVoice.addEventListener('connectionDidConnect', function(data) {
    // {
    //     call_sid: string,  // Twilio call sid
    //     call_state: 'CONNECTED' | 'ACCEPTED' | 'CONNECTING' | 'RINGING' | 'DISCONNECTED' | 'CANCELLED',
    //     call_from: string, // "+441234567890"
    //     call_to: string,   // "client:bob"
    // }
})
TwilioVoice.addEventListener('connectionIsReconnecting', function(data) {
    // {
    //     call_sid: string,  // Twilio call sid
    //     call_from: string, // "+441234567890"
    //     call_to: string,   // "client:bob"
    // }
})
TwilioVoice.addEventListener('connectionDidReconnect', function(data) {
    // {
    //     call_sid: string,  // Twilio call sid
    //     call_from: string, // "+441234567890"
    //     call_to: string,   // "client:bob"
    // }
})
TwilioVoice.addEventListener('connectionDidDisconnect', function(data: mixed) {
    //   | null
    //   | {
    //       err: string
    //     }
    //   | {
    //         call_sid: string,  // Twilio call sid
    //         call_state: 'CONNECTED' | 'ACCEPTED' | 'CONNECTING' | 'RINGING' | 'DISCONNECTED' | 'CANCELLED',
    //         call_from: string, // "+441234567890"
    //         call_to: string,   // "client:bob"
    //         err?: string,
    //     }
})
TwilioVoice.addEventListener('callStateRinging', function(data: mixed) {
    //   {
    //       call_sid: string,  // Twilio call sid
    //       call_state: 'CONNECTED' | 'ACCEPTED' | 'CONNECTING' | 'RINGING' | 'DISCONNECTED' | 'CANCELLED',
    //       call_from: string, // "+441234567890"
    //       call_to: string,   // "client:bob"
    //   }
})
TwilioVoice.addEventListener('callInviteCancelled', function(data: mixed) {
    //   {
    //       call_sid: string,  // Twilio call sid
    //       call_from: string, // "+441234567890"
    //       call_to: string,   // "client:bob"
    //   }
})

// iOS Only
TwilioVoice.addEventListener('callRejected', function(value: 'callRejected') {})

TwilioVoice.addEventListener('deviceDidReceiveIncoming', function(data) {
    // {
    //     call_sid: string,  // Twilio call sid
    //     call_from: string, // "+441234567890"
    //     call_to: string,   // "client:bob"
    // }
})

// Android Only
TwilioVoice.addEventListener('proximity', function(data) {
    // {
    //     isNear: boolean
    // }
})

// Android Only
TwilioVoice.addEventListener('wiredHeadset', function(data) {
    // {
    //     isPlugged: boolean,
    //     hasMic: boolean,
    //     deviceName: string
    // }
})

// ...

// start a call
TwilioVoice.connect({To: '+61234567890'})

// hangup
TwilioVoice.disconnect()

// accept an incoming call (Android only, in iOS CallKit provides the UI for this)
TwilioVoice.accept()

// reject an incoming call (Android only, in iOS CallKit provides the UI for this)
TwilioVoice.reject()

// ignore an incoming call (Android only)
TwilioVoice.ignore()

// mute or un-mute the call
// mutedValue must be a boolean
TwilioVoice.setMuted(mutedValue)

// put a call on hold
TwilioVoice.hold(holdValue)

// send digits
TwilioVoice.sendDigits(digits)

// Ensure that an active call is displayed when the app comes to foreground
TwilioVoice.getActiveCall()
    .then(activeCall => {
        if (activeCall){
            _displayActiveCall(activeCall)
        }
    })

// Ensure that call invites are displayed when the app comes to foreground
TwilioVoice.getCallInvite()
    .then(callInvite => {
        if (callInvite){
            _handleCallInvite(callInvite)
        }
    })

// Unregister device with Twilio (iOS only)
TwilioVoice.unregister()