Add favourites apps [2/2]

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/com/aurora/store/data/room/favourites/ImportExport.kt

@@ -0,0 +1,8 @@
+package com.aurora.store.data.room.favourites
+
+import com.aurora.store.BuildConfig
+
+data class ImportExport(
+    val favourites: List<Favourite>,
+    val auroraStoreVersion: Int = BuildConfig.VERSION_CODE,
+)

app/src/main/java/com/aurora/store/module/CommonModule.kt

@@ -1,6 +1,7 @@
 package com.aurora.store.module
 
 import com.google.gson.Gson
+import com.google.gson.GsonBuilder
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@@ -14,6 +15,8 @@ object CommonModule {
     @Singleton
     @Provides
     fun providesGsonInstance(): Gson {
-        return Gson()
+        return GsonBuilder()
+            .setPrettyPrinting()
+            .create()
     }
 }

app/src/main/java/com/aurora/store/view/ui/commons/FavouriteFragment.kt

@@ -19,11 +19,14 @@
 
 package com.aurora.store.view.ui.commons
 
+import android.net.Uri
 import android.os.Bundle
 import android.view.View
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
+import com.aurora.extensions.toast
 import com.aurora.store.R
 import com.aurora.store.data.room.favourites.Favourite
 import com.aurora.store.databinding.FragmentFavouriteBinding
@@ -33,6 +36,7 @@ import com.aurora.store.view.epoxy.views.shimmer.AppListViewShimmerModel_
 import com.aurora.store.viewmodel.all.FavouriteViewModel
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
+import java.util.Calendar
 
 @AndroidEntryPoint
 class FavouriteFragment : BaseFragment(R.layout.fragment_favourite) {
@@ -43,6 +47,16 @@ class FavouriteFragment : BaseFragment(R.layout.fragment_favourite) {
 
     private val viewModel: FavouriteViewModel by viewModels()
 
+    private val mimeType = "application/json"
+    private val startForDocumentImport =
+        registerForActivityResult(ActivityResultContracts.OpenDocument()) {
+            if (it != null) importDeviceConfig(it) else toast(R.string.toast_fav_import_failed)
+        }
+    private val startForDocumentExport =
+        registerForActivityResult(ActivityResultContracts.CreateDocument(mimeType)) {
+            if (it != null) exportDeviceConfig(it) else toast(R.string.toast_fav_export_failed)
+        }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
@@ -55,8 +69,21 @@ class FavouriteFragment : BaseFragment(R.layout.fragment_favourite) {
         }
 
         // Toolbar
-        binding.toolbar.setNavigationOnClickListener {
+        binding.toolbar.apply {
-            findNavController().navigateUp()
+            setOnMenuItemClickListener {
+                when (it.itemId) {
+                    R.id.action_import -> startForDocumentImport.launch(arrayOf(mimeType))
+                    R.id.action_export -> {
+                        startForDocumentExport.launch(
+                            "aurora_store_favourites_${Calendar.getInstance().time.time}.json"
+                        )
+                    }
+
+                    else -> {}
+                }
+                true
+            }
+            setNavigationOnClickListener { findNavController().navigateUp() }
         }
     }
 
@@ -75,7 +102,7 @@ class FavouriteFragment : BaseFragment(R.layout.fragment_favourite) {
                             .id(i)
                     )
                 }
-            } else if(favourites.isEmpty()) {
+            } else if (favourites.isEmpty()) {
                 add(
                     NoAppViewModel_()
                         .id("no_app")
@@ -95,4 +122,15 @@ class FavouriteFragment : BaseFragment(R.layout.fragment_favourite) {
             }
         }
     }
+
+    private fun importDeviceConfig(uri: Uri) {
+        viewModel.importFavourites(requireContext(), uri)
+        binding.recycler.requestModelBuild()
+        toast(R.string.toast_fav_import_success)
+    }
+
+    private fun exportDeviceConfig(uri: Uri) {
+        viewModel.exportFavourites(requireContext(), uri)
+        toast(R.string.toast_fav_export_success)
+    }
 }

app/src/main/java/com/aurora/store/view/ui/spoof/SpoofFragment.kt

@@ -72,7 +72,7 @@ class SpoofFragment : Fragment(R.layout.activity_generic_pager) {
             elevation = 0f
             title = getString(R.string.title_spoof_manager)
             navigationIcon = ContextCompat.getDrawable(view.context, R.drawable.ic_arrow_back)
-            inflateMenu(R.menu.menu_spoof)
+            inflateMenu(R.menu.menu_import_export)
             setNavigationOnClickListener { findNavController().navigateUp() }
             setOnMenuItemClickListener {
                 when (it.itemId) {

app/src/main/java/com/aurora/store/viewmodel/all/FavouriteViewModel.kt

@@ -19,9 +19,15 @@
 
 package com.aurora.store.viewmodel.all
 
+import android.content.Context
+import android.net.Uri
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.aurora.store.data.room.favourites.Favourite
 import com.aurora.store.data.room.favourites.FavouriteDao
+import com.aurora.store.data.room.favourites.ImportExport
+import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.SharingStarted
@@ -32,11 +38,32 @@ import javax.inject.Inject
 @HiltViewModel
 class FavouriteViewModel @Inject constructor(
     private val favouriteDao: FavouriteDao,
+    private val gson: Gson
 ) : ViewModel() {
 
     val favouritesList = favouriteDao.favourites()
         .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), null)
 
+    fun importFavourites(context: Context, uri: Uri) {
+        viewModelScope.launch(Dispatchers.IO) {
+            context.contentResolver.openInputStream(uri)?.use {
+                val type = object : TypeToken<ImportExport>() {}.type
+                val importExport = gson.fromJson<ImportExport>(it.bufferedReader().readText(), type)
+                favouriteDao.insertAll(
+                    importExport.favourites.map { fav -> fav.copy(mode = Favourite.Mode.IMPORT) }
+                )
+            }
+        }
+    }
+
+    fun exportFavourites(context: Context, uri: Uri) {
+        viewModelScope.launch(Dispatchers.IO) {
+            context.contentResolver.openOutputStream(uri)?.use {
+                it.write(gson.toJson(ImportExport(favouritesList.value!!)).encodeToByteArray())
+            }
+        }
+    }
+
     fun removeFavourite(packageName: String) {
         viewModelScope.launch(Dispatchers.IO) {
             favouriteDao.delete(packageName)

app/src/main/res/layout/fragment_favourite.xml

@@ -29,6 +29,7 @@
         android:layout_height="wrap_content"
         android:minHeight="?attr/actionBarSize"
         android:theme="?attr/actionBarTheme"
+        app:menu="@menu/menu_import_export"
         app:navigationIcon="@drawable/ic_arrow_back"
         app:title="@string/title_favourites_manager" />
 

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

@@ -456,4 +456,10 @@
     <string name="remove_dispenser_summary">Do you wish to remove the dispenser \"<xliff:g id="url">%1$s</xliff:g>\"?</string>
     <string name="add">Add</string>
     <string name="remove">Remove</string>
+
+    <!-- FavouriteFragment-->
+    <string name="toast_fav_import_failed">Failed to import favourites!</string>
+    <string name="toast_fav_export_failed">Failed to export favourites!</string>
+    <string name="toast_fav_import_success">Favourites imported!</string>
+    <string name="toast_fav_export_success">Favourites exported!</string>
 </resources>