Add ads limit (#1662)

app/src/main/res/values/strings.xml

@@ -699,6 +699,7 @@
     <string name="pref_ads_privacy_agree">Agree</string>
     <string name="pref_ads_privacy_link">Privacy policy</string>
     <string name="pref_ads_loading">Ad is loading</string>
+    <string name="pref_ads_once_per_visit">Thank you for your support, come back later for more ads</string>
 
     <string name="pref_settings_advanced_title">Advanced</string>
     <string name="pref_settings_appearance_title">Appearance &amp; Behavior</string>

app/src/play/java/io/github/wulkanowy/ui/modules/settings/ads/AdsFragment.kt

@@ -68,6 +68,13 @@ class AdsFragment : PreferenceFragmentCompat(), MainView.TitledView, AdsView {
         }
     }
 
+    override fun showWatchAdOncePerVisit(show: Boolean) {
+        findPreference<Preference>(getString(R.string.pref_key_ads_single_support))?.run {
+            isEnabled = !show
+            summary = if (show) getString(R.string.pref_ads_once_per_visit) else null
+        }
+    }
+
     override fun showError(text: String, error: Throwable) {
         (activity as? BaseActivity<*, *>)?.showError(text, error)
     }

app/src/play/java/io/github/wulkanowy/ui/modules/settings/ads/AdsPresenter.kt

@@ -35,7 +35,10 @@ class AdsPresenter @Inject constructor(
                 .onFailure(errorHandler::dispatch)
                 .onSuccess { it?.let { view?.showAd(it) } }
 
-            view?.showLoadingSupportAd(false)
+            view?.run {
+                showLoadingSupportAd(false)
+                showWatchAdOncePerVisit(true)
+            }
         }
     }
 }

app/src/play/java/io/github/wulkanowy/ui/modules/settings/ads/AdsView.kt

@@ -14,4 +14,6 @@ interface AdsView : BaseView {
     fun openPrivacyPolicy()
 
     fun showLoadingSupportAd(show: Boolean)
+
+    fun showWatchAdOncePerVisit(show: Boolean)
 }