GamBannerAdServer.kt

import android.content.Context
import com.google.android.gms.ads.AdListener
import com.google.android.gms.ads.AdSize
import com.google.android.gms.ads.LoadAdError
import com.google.android.gms.ads.admanager.AdManagerAdRequest
import com.google.android.gms.ads.admanager.AdManagerAdView
import com.radio.pocketfm.app.ads.models.SizeModel
import com.radio.pocketfm.app.ads.listeners.AdStatusListener
import com.radio.pocketfm.app.helpers.*


class GamBannerAdServer(private val ctx: Context, val adUnitId: String, private val adSizes: List<AdSize?>, val statusListener: AdStatusListener?) :
    BannerAdServer {
    private lateinit var mAdManagerAdView: AdManagerAdView
    private val adRequest: AdManagerAdRequest = AdManagerAdRequest.Builder().build()

    init {
        initAdAndSetListener(adUnitId)
    }

    override fun initAdAndSetListener(adUnitId: String) {
        mAdManagerAdView = AdManagerAdView(ctx)
        //AdView's AdUnitId and AdSizes must be initialized only once. hence this check to prevent Exception
        if (mAdManagerAdView.adUnitId.isNull()) {
            mAdManagerAdView.adUnitId = adUnitId
            mAdManagerAdView.setAdSizes(*adSizes.toTypedArray())
        }

        mAdManagerAdView.adListener = object : AdListener() {

            // Callback method Notifies that a banner ad successfully loaded
            override fun onAdLoaded() {
                super.onAdLoaded()
                statusListener?.onAdLoaded(mAdManagerAdView, SizeModel(mAdManagerAdView.adSize?.width, mAdManagerAdView.adSize?.height))
            }

            // Callback method Notifies an error occurred while loading and ad
            override fun onAdFailedToLoad(adError: LoadAdError) {
                super.onAdFailedToLoad(adError)
                statusListener?.onAdFailed()
            }

            // Callback method Notifies that the banner ad view closed the modal.
            override fun onAdClosed() {
                super.onAdClosed()
                statusListener?.onAdClosed()
            }
        }
    }

    override fun loadBannerAd() {
        mAdManagerAdView.loadAd(adRequest)
    }

    override fun pauseBannerAd() {
        mAdManagerAdView.pause()
    }

    override fun resumeBannerAd() {
        mAdManagerAdView.resume()
    }

    override fun destroyBannerAd() {
        mAdManagerAdView.destroy()
    }
}