Support displaying show trailer

app/src/main/java/com/battlelancer/seriesguide/movies/details/MovieTrailersLoader.kt

@@ -4,13 +4,8 @@
 package com.battlelancer.seriesguide.movies.details
 
 import android.content.Context
-import com.battlelancer.seriesguide.SgApp
-import com.battlelancer.seriesguide.movies.MoviesSettings.getMoviesLanguage
-import com.battlelancer.seriesguide.util.Errors
+import com.battlelancer.seriesguide.tmdbapi.TmdbTools2
 import com.uwetrottmann.androidutils.GenericSimpleLoader
-import com.uwetrottmann.tmdb2.entities.Videos
-import com.uwetrottmann.tmdb2.enumerations.VideoType
-import timber.log.Timber
 
 /**
  * Loads a YouTube movie trailer from TMDb. Tries to get a local trailer, if not falls back to
@@ -20,48 +15,7 @@ class MovieTrailersLoader(context: Context, private val tmdbId: Int) :
     GenericSimpleLoader<String?>(context) {
 
     override fun loadInBackground(): String? {
-        // try to get a local trailer
-        val trailer = getTrailerVideoId(
-            getMoviesLanguage(context), "get local movie trailer"
-        )
-        if (trailer != null) {
-            return trailer
-        }
-        Timber.d("Did not find a local movie trailer.")
-
-        // fall back to default language trailer
-        return getTrailerVideoId(null, "get default movie trailer")
-    }
-
-    private fun getTrailerVideoId(language: String?, action: String): String? {
-        val moviesService = SgApp.getServicesComponent(context).moviesService()
-        try {
-            val response = moviesService.videos(tmdbId, language).execute()
-            if (response.isSuccessful) {
-                return extractTrailer(response.body())
-            } else {
-                Errors.logAndReport(action, response)
-            }
-        } catch (e: Exception) {
-            Errors.logAndReport(action, e)
-        }
-        return null
+        return TmdbTools2().getMovieTrailerYoutubeId(context, tmdbId)
     }
 
-    private fun extractTrailer(videos: Videos?): String? {
-        val results = videos?.results
-        if (results == null || results.size == 0) {
-            return null
-        }
-
-        // Pick the first YouTube trailer
-        for (video in results) {
-            val videoId = video.key
-            if (video.type == VideoType.TRAILER && "YouTube" == video.site
-                && !videoId.isNullOrEmpty()) {
-                return videoId
-            }
-        }
-        return null
-    }
 }

app/src/main/java/com/battlelancer/seriesguide/shows/overview/ShowFragment.kt

@@ -102,6 +102,7 @@ class ShowFragment() : Fragment() {
         val buttonShortcut: Button
         val buttonLanguage: Button
         val buttonRate: View
+        val buttonTrailer: Button
         val buttonSimilar: Button
         val buttonImdb: Button
         val buttonShowMetacritic: Button
@@ -140,6 +141,7 @@ class ShowFragment() : Fragment() {
             buttonShortcut = view.findViewById(R.id.buttonShowShortcut)
             buttonLanguage = view.findViewById(R.id.buttonShowLanguage)
             buttonRate = view.findViewById(R.id.containerRatings)
+            buttonTrailer = view.findViewById(R.id.buttonShowTrailer)
             buttonSimilar = view.findViewById(R.id.buttonShowSimilar)
             buttonImdb = view.findViewById(R.id.buttonShowImdb)
             buttonShowMetacritic = view.findViewById(R.id.buttonShowMetacritic)
@@ -406,6 +408,19 @@ class ShowFragment() : Fragment() {
         binding.textViewRatingVotes.text = showForUi.traktVotes
         binding.textViewRatingUser.text = showForUi.traktUserRating
 
+        // Trailer button
+        binding.buttonTrailer.apply {
+            if (showForUi.trailerVideoId != null) {
+                setOnClickListener {
+                    ServiceUtils.openYoutube(showForUi.trailerVideoId, requireContext())
+                }
+                isEnabled = true
+            } else {
+                setOnClickListener(null)
+                isEnabled = false
+            }
+        }
+
         // Similar shows button.
         binding.buttonSimilar.setOnClickListener {
             show.tmdbId?.also {

app/src/main/java/com/battlelancer/seriesguide/shows/overview/ShowViewModel.kt

@@ -20,6 +20,7 @@ import com.battlelancer.seriesguide.util.LanguageTools
 import com.battlelancer.seriesguide.util.TextTools
 import com.battlelancer.seriesguide.util.TimeTools
 import com.battlelancer.seriesguide.util.Utils
+import com.github.michaelbull.result.onSuccess
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -45,7 +46,8 @@ class ShowViewModel(application: Application) : AndroidViewModel(application) {
         val genres: String,
         val traktRating: String,
         val traktVotes: String,
-        val traktUserRating: String
+        val traktUserRating: String,
+        val trailerVideoId: String?
     )
 
     // Mediator to compute some additional data for the UI in the background.
@@ -99,20 +101,38 @@ class ShowViewModel(application: Application) : AndroidViewModel(application) {
                     val traktUserRating =
                         TraktTools.buildUserRatingString(application, show.ratingUser)
 
+                    val databaseValues = ShowForUi(
+                        show,
+                        timeOrNull,
+                        baseInfo,
+                        overviewStyled,
+                        languageData,
+                        country,
+                        releaseYear,
+                        lastUpdated,
+                        genres,
+                        traktRating, traktVotes, traktUserRating,
+                        null
+                    )
+
                     withContext(Dispatchers.Main) {
-                        showForUi.value =
-                            ShowForUi(
-                                show,
-                                timeOrNull,
-                                baseInfo,
-                                overviewStyled,
-                                languageData,
-                                country,
-                                releaseYear,
-                                lastUpdated,
-                                genres,
-                                traktRating, traktVotes, traktUserRating
-                            )
+                        showForUi.value = databaseValues
+                    }
+
+                    // Do network request after returning data from the database
+                    val showTmdbId = show.tmdbId
+                    if (showTmdbId != null && languageData != null) {
+                        TmdbTools2().getShowTrailerYoutubeId(
+                            application,
+                            show.tmdbId,
+                            languageData.languageCode
+                        ).onSuccess {
+                            if (it != null) {
+                                withContext(Dispatchers.Main) {
+                                    showForUi.value = databaseValues.copy(trailerVideoId = it)
+                                }
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/com/battlelancer/seriesguide/shows/search/discover/AddShowDialogFragment.kt

@@ -26,6 +26,7 @@ import com.battlelancer.seriesguide.ui.OverviewActivity
 import com.battlelancer.seriesguide.ui.dialogs.L10nDialogFragment
 import com.battlelancer.seriesguide.util.ImageTools
 import com.battlelancer.seriesguide.util.LanguageTools
+import com.battlelancer.seriesguide.util.ServiceUtils
 import com.battlelancer.seriesguide.util.TextTools
 import com.battlelancer.seriesguide.util.TimeTools
 import com.battlelancer.seriesguide.util.ViewTools
@@ -152,6 +153,17 @@ class AddShowDialogFragment : AppCompatDialogFragment() {
                 this.binding?.textViewAddDescription?.isGone = false
                 populateShowViews(show)
             }
+            model.trailer.observe(this) { videoId ->
+                this.binding?.buttonAddTrailer?.apply {
+                    if (videoId != null) {
+                        setOnClickListener { ServiceUtils.openYoutube(videoId, requireContext()) }
+                        isEnabled = true
+                    } else {
+                        setOnClickListener(null)
+                        isEnabled = false
+                    }
+                }
+            }
             model.watchProvider.observe(this) { watchInfo ->
                 this.binding?.buttonAddStreamingSearch?.let {
                     val providerInfo = StreamingSearch.configureButton(it, watchInfo, false)

app/src/main/java/com/battlelancer/seriesguide/shows/search/discover/AddShowDialogViewModel.kt

@@ -17,6 +17,7 @@ import com.battlelancer.seriesguide.SgApp
 import com.battlelancer.seriesguide.shows.database.SgShow2
 import com.battlelancer.seriesguide.shows.tools.GetShowTools.GetShowError.GetShowDoesNotExist
 import com.battlelancer.seriesguide.streaming.StreamingSearch
+import com.battlelancer.seriesguide.tmdbapi.TmdbTools2
 import com.github.michaelbull.result.onFailure
 import com.github.michaelbull.result.onSuccess
 import kotlinx.coroutines.Dispatchers
@@ -35,6 +36,7 @@ class AddShowDialogViewModel(
 
     val languageCode = MutableLiveData<String>()
     val showDetails: LiveData<ShowDetails>
+    val trailer: LiveData<String?>
 
     init {
         // Set original value for region.
@@ -66,6 +68,12 @@ class AddShowDialogViewModel(
                     }
             }
         }
+        this.trailer = languageCode.switchMap { languageCode ->
+            liveData(context = viewModelScope.coroutineContext + Dispatchers.IO) {
+                TmdbTools2().getShowTrailerYoutubeId(application, showTmdbId, languageCode)
+                    .onSuccess { emit(it) }
+            }
+        }
     }
 
     private val watchInfoMediator = MediatorLiveData<StreamingSearch.WatchInfo>().apply {

app/src/main/java/com/battlelancer/seriesguide/tmdbapi/TmdbTools2.kt

@@ -5,6 +5,7 @@ package com.battlelancer.seriesguide.tmdbapi
 
 import android.content.Context
 import com.battlelancer.seriesguide.SgApp
+import com.battlelancer.seriesguide.movies.MoviesSettings
 import com.battlelancer.seriesguide.provider.SgRoomDatabase
 import com.battlelancer.seriesguide.util.Errors
 import com.battlelancer.seriesguide.util.isRetryError
@@ -26,16 +27,19 @@ import com.uwetrottmann.tmdb2.entities.TmdbDate
 import com.uwetrottmann.tmdb2.entities.TvEpisode
 import com.uwetrottmann.tmdb2.entities.TvShow
 import com.uwetrottmann.tmdb2.entities.TvShowResultsPage
+import com.uwetrottmann.tmdb2.entities.Videos
 import com.uwetrottmann.tmdb2.entities.WatchProviders
 import com.uwetrottmann.tmdb2.enumerations.AppendToResponseItem
 import com.uwetrottmann.tmdb2.enumerations.ExternalSource
 import com.uwetrottmann.tmdb2.enumerations.SortBy
+import com.uwetrottmann.tmdb2.enumerations.VideoType
 import com.uwetrottmann.tmdb2.services.PeopleService
 import com.uwetrottmann.tmdb2.services.TvEpisodesService
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import retrofit2.awaitResponse
 import retrofit2.create
+import timber.log.Timber
 import java.util.Calendar
 import java.util.Date
 
@@ -224,6 +228,95 @@ class TmdbTools2 {
         return null
     }
 
+    fun getShowTrailerYoutubeId(
+        context: Context,
+        showTmdbId: Int,
+        languageCode: String
+    ): Result<String?, TmdbError> {
+        val action = "get show trailer"
+        val tmdb = SgApp.getServicesComponent(context.applicationContext).tmdb()
+        return runCatching {
+            tmdb.tvService()
+                .videos(showTmdbId, languageCode)
+                .execute()
+        }.mapError {
+            Errors.logAndReport(action, it)
+            if (it.isRetryError()) TmdbRetry else TmdbStop
+        }.andThen {
+            if (it.isSuccessful) {
+                val results = it.body()?.results
+                if (results != null) {
+                    return@andThen Ok(extractTrailer(it.body()))
+                } else {
+                    Errors.logAndReport(action, it, "results is null")
+                }
+            } else {
+                Errors.logAndReport(action, it)
+            }
+            return@andThen Err(TmdbStop)
+        }
+    }
+
+    /**
+     * Loads a YouTube movie trailer from TMDb. Tries to get a local trailer, if not falls back to
+     * English.
+     */
+    fun getMovieTrailerYoutubeId(
+        context: Context,
+        movieTmdbId: Int
+    ): String? {
+        // try to get a local trailer
+        val trailer = getMovieTrailerYoutubeId(
+            context, movieTmdbId, MoviesSettings.getMoviesLanguage(context), "get local movie trailer"
+        )
+        if (trailer != null) {
+            return trailer
+        }
+        Timber.d("Did not find a local movie trailer.")
+
+        // fall back to default language trailer
+        return getMovieTrailerYoutubeId(
+            context, movieTmdbId, null, "get default movie trailer"
+        )
+    }
+
+    private fun getMovieTrailerYoutubeId(
+        context: Context,
+        movieTmdbId: Int,
+        languageCode: String?,
+        action: String
+    ): String? {
+        val moviesService = SgApp.getServicesComponent(context).moviesService()
+        try {
+            val response = moviesService.videos(movieTmdbId, languageCode).execute()
+            if (response.isSuccessful) {
+                return extractTrailer(response.body())
+            } else {
+                Errors.logAndReport(action, response)
+            }
+        } catch (e: Exception) {
+            Errors.logAndReport(action, e)
+        }
+        return null
+    }
+
+    private fun extractTrailer(videos: Videos?): String? {
+        val results = videos?.results
+        if (results == null || results.size == 0) {
+            return null
+        }
+
+        // Pick the first YouTube trailer
+        for (video in results) {
+            val videoId = video.key
+            if (video.type == VideoType.TRAILER && "YouTube" == video.site
+                && !videoId.isNullOrEmpty()) {
+                return videoId
+            }
+        }
+        return null
+    }
+
     suspend fun getShowWatchProviders(
         tmdb: Tmdb,
         language: String,

app/src/main/java/com/battlelancer/seriesguide/util/LanguageTools.kt

@@ -91,7 +91,7 @@ object LanguageTools {
         return null
     }
 
-    data class LanguageData(val languageCode: String?, val languageString: String)
+    data class LanguageData(val languageCode: String, val languageString: String)
 
     /**
      * Based on the first two letters gets the language display name. Except for