[LeakCanary] *ContainerFragment: Refactor to use viewBinding and viewModels

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

app/src/main/java/com/aurora/store/view/ui/apps/AppsContainerFragment.kt

@@ -20,14 +20,11 @@
 package com.aurora.store.view.ui.apps
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.Lifecycle
 import androidx.viewpager2.adapter.FragmentStateAdapter
-import com.aurora.gplayapi.data.models.AuthData
 import com.aurora.store.R
 import com.aurora.store.data.providers.AuthProvider
 import com.aurora.store.databinding.FragmentAppsGamesBinding
@@ -40,48 +37,32 @@ import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
 
 
-class AppsContainerFragment : Fragment() {
+class AppsContainerFragment : Fragment(R.layout.fragment_apps_games) {
 
-    private lateinit var B: FragmentAppsGamesBinding
-    private lateinit var authData: AuthData
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        B = FragmentAppsGamesBinding.bind(
-            inflater.inflate(
-                R.layout.fragment_apps_games,
-                container,
-                false
-            )
-        )
-        return B.root
-    }
+    private var _binding: FragmentAppsGamesBinding? = null
+    private val binding get() = _binding!!
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        authData = AuthProvider.with(requireContext()).getAuthData()
-        setupViewPager()
-    }
+        _binding = FragmentAppsGamesBinding.bind(view)
 
-    private fun setupViewPager() {
+        // ViewPager
         val isForYouEnabled = Preferences.getBoolean(
             requireContext(),
             Preferences.PREFERENCE_FOR_YOU
         )
 
-        val isGoogleAccount = !authData.isAnonymous
+        val isGoogleAccount = !AuthProvider.with(requireContext()).getAuthData().isAnonymous
 
-        B.pager.adapter = ViewPagerAdapter(
+        binding.pager.adapter = ViewPagerAdapter(
             childFragmentManager,
             lifecycle,
             isGoogleAccount,
             isForYouEnabled
         )
 
-        B.pager.isUserInputEnabled = false //Disable viewpager scroll to avoid scroll conflicts
+        binding.pager.isUserInputEnabled =
+            false //Disable viewpager scroll to avoid scroll conflicts
 
         val tabTitles: MutableList<String> = mutableListOf<String>().apply {
             if (isForYouEnabled) {
@@ -96,11 +77,20 @@ class AppsContainerFragment : Fragment() {
             }
         }
 
-        TabLayoutMediator(B.tabLayout, B.pager, true) { tab: TabLayout.Tab, position: Int ->
+        TabLayoutMediator(
+            binding.tabLayout,
+            binding.pager,
+            true
+        ) { tab: TabLayout.Tab, position: Int ->
             tab.text = tabTitles[position]
         }.attach()
     }
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
     internal class ViewPagerAdapter(
         fragment: FragmentManager,
         lifecycle: Lifecycle,

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

@@ -20,29 +20,21 @@
 package com.aurora.store.view.ui.commons
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.Lifecycle
 import androidx.viewpager2.adapter.FragmentStateAdapter
 import androidx.viewpager2.widget.ViewPager2
 import com.aurora.Constants
-import com.aurora.gplayapi.data.models.AuthData
 import com.aurora.store.R
-import com.aurora.store.data.providers.AuthProvider
 import com.aurora.store.databinding.FragmentTopChartBinding
-import com.aurora.store.view.ui.games.TopChartFragment
 
 
-class TopChartContainerFragment : Fragment() {
+class TopChartContainerFragment : Fragment(R.layout.fragment_top_chart) {
 
-    private lateinit var B: FragmentTopChartBinding
-
-    private lateinit var authData: AuthData
-
-    private var chartType = 0
+    private var _binding: FragmentTopChartBinding? = null
+    private val binding get() = _binding!!
 
     companion object {
         @JvmStatic
@@ -55,57 +47,45 @@ class TopChartContainerFragment : Fragment() {
         }
     }
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        B = FragmentTopChartBinding.bind(
-            inflater.inflate(
-                R.layout.fragment_top_chart,
-                container,
-                false
-            )
-        )
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        _binding = FragmentTopChartBinding.bind(view)
 
+        var chartType = 0
         val bundle = arguments
         if (bundle != null) {
             chartType = bundle.getInt(Constants.TOP_CHART_TYPE, 0)
         }
 
-        return B.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        authData = AuthProvider.with(requireContext()).getAuthData()
-        setupViewPager()
-    }
-
-    private fun setupViewPager() {
-        B.pager.adapter = ViewPagerAdapter(childFragmentManager, lifecycle, chartType)
-        B.topTabGroup.setOnCheckedStateChangeListener { _, checkedIds ->
+        // ViewPager
+        binding.pager.adapter = ViewPagerAdapter(childFragmentManager, lifecycle, chartType)
+        binding.topTabGroup.setOnCheckedStateChangeListener { _, checkedIds ->
             when (checkedIds[0]) {
-                R.id.tab_top_free -> B.pager.setCurrentItem(0, true)
-                R.id.tab_top_grossing -> B.pager.setCurrentItem(1, true)
-                R.id.tab_trending -> B.pager.setCurrentItem(2, true)
-                R.id.tab_top_paid -> B.pager.setCurrentItem(3, true)
+                R.id.tab_top_free -> binding.pager.setCurrentItem(0, true)
+                R.id.tab_top_grossing -> binding.pager.setCurrentItem(1, true)
+                R.id.tab_trending -> binding.pager.setCurrentItem(2, true)
+                R.id.tab_top_paid -> binding.pager.setCurrentItem(3, true)
             }
         }
 
-        B.pager.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
+        binding.pager.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
             override fun onPageSelected(position: Int) {
                 super.onPageSelected(position)
                 when (position) {
-                    0 -> B.topTabGroup.check(R.id.tab_top_free)
-                    1 -> B.topTabGroup.check(R.id.tab_top_grossing)
-                    2 -> B.topTabGroup.check(R.id.tab_trending)
-                    3 -> B.topTabGroup.check(R.id.tab_top_paid)
+                    0 -> binding.topTabGroup.check(R.id.tab_top_free)
+                    1 -> binding.topTabGroup.check(R.id.tab_top_grossing)
+                    2 -> binding.topTabGroup.check(R.id.tab_trending)
+                    3 -> binding.topTabGroup.check(R.id.tab_top_paid)
                 }
             }
         })
     }
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
     internal class ViewPagerAdapter(
         fragment: FragmentManager,
         lifecycle: Lifecycle,

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

@@ -17,34 +17,29 @@
  *
  */
 
-package com.aurora.store.view.ui.apps
+package com.aurora.store.view.ui.commons
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
-import androidx.lifecycle.ViewModelProvider
+import androidx.fragment.app.viewModels
 import com.aurora.Constants
 import com.aurora.gplayapi.data.models.StreamCluster
+import com.aurora.gplayapi.helpers.TopChartsHelper.Chart
+import com.aurora.gplayapi.helpers.TopChartsHelper.Type
 import com.aurora.store.R
 import com.aurora.store.databinding.FragmentTopContainerBinding
 import com.aurora.store.view.custom.recycler.EndlessRecyclerOnScrollListener
 import com.aurora.store.view.epoxy.views.AppProgressViewModel_
 import com.aurora.store.view.epoxy.views.app.AppListViewModel_
 import com.aurora.store.view.epoxy.views.shimmer.AppListViewShimmerModel_
-import com.aurora.store.view.ui.commons.BaseFragment
-import com.aurora.store.viewmodel.topchart.BaseChartViewModel
-import com.aurora.store.viewmodel.topchart.TopFreeAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TopGrossingAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TopPaidAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TrendingAppChartViewModel
+import com.aurora.store.viewmodel.topchart.TopChartViewModel
 
-class TopChartFragment : BaseFragment() {
+class TopChartFragment : BaseFragment(R.layout.fragment_top_container) {
 
-    private lateinit var VM: BaseChartViewModel
-    private lateinit var B: FragmentTopContainerBinding
+    private var _binding: FragmentTopContainerBinding? = null
+    private val binding get() = _binding!!
 
-    private lateinit var streamCluster: StreamCluster
+    private val viewModel: TopChartViewModel by viewModels()
 
     private var chartType = 0
     private var chartCategory = 0
@@ -61,18 +56,9 @@ class TopChartFragment : BaseFragment() {
         }
     }
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        B = FragmentTopContainerBinding.bind(
-            inflater.inflate(
-                R.layout.fragment_top_container,
-                container,
-                false
-            )
-        )
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        _binding = FragmentTopContainerBinding.bind(view)
 
         val bundle = arguments
         if (bundle != null) {
@@ -80,41 +66,42 @@ class TopChartFragment : BaseFragment() {
             chartCategory = bundle.getInt(Constants.TOP_CHART_CATEGORY, 0)
         }
 
-        when (chartCategory) {
-            0 -> VM = ViewModelProvider(this)[TopFreeAppChartViewModel::class.java]
-            1 -> VM = ViewModelProvider(this)[TopGrossingAppChartViewModel::class.java]
-            2 -> VM = ViewModelProvider(this)[TrendingAppChartViewModel::class.java]
-            3 -> VM = ViewModelProvider(this)[TopPaidAppChartViewModel::class.java]
+        when (chartType) {
+            0 -> when (chartCategory) {
+                0 -> viewModel.getStreamCluster(Type.APPLICATION, Chart.TOP_SELLING_FREE)
+                1 -> viewModel.getStreamCluster(Type.APPLICATION, Chart.TOP_GROSSING)
+                2 -> viewModel.getStreamCluster(Type.APPLICATION, Chart.MOVERS_SHAKERS)
+                3 -> viewModel.getStreamCluster(Type.APPLICATION, Chart.TOP_SELLING_PAID)
+            }
+
+            1 -> when (chartCategory) {
+                0 -> viewModel.getStreamCluster(Type.GAME, Chart.TOP_SELLING_FREE)
+                1 -> viewModel.getStreamCluster(Type.GAME, Chart.TOP_GROSSING)
+                2 -> viewModel.getStreamCluster(Type.GAME, Chart.MOVERS_SHAKERS)
+                3 -> viewModel.getStreamCluster(Type.GAME, Chart.TOP_SELLING_PAID)
+            }
         }
 
-        return B.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-
-        VM.liveData.observe(viewLifecycleOwner) {
-            if (!::streamCluster.isInitialized)
-                attachRecycler()
-
-            streamCluster = it
-
-            updateController(streamCluster)
+        viewModel.liveData.observe(viewLifecycleOwner) {
+            updateController(it)
         }
 
+        binding.recycler.addOnScrollListener(object : EndlessRecyclerOnScrollListener() {
+            override fun onLoadMore(currentPage: Int) {
+                viewModel.nextCluster()
+            }
+        })
+
         updateController(null)
     }
 
-    private fun attachRecycler() {
-        B.recycler.addOnScrollListener(object : EndlessRecyclerOnScrollListener() {
-            override fun onLoadMore(currentPage: Int) {
-                VM.nextCluster()
-            }
-        })
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
     }
 
     private fun updateController(streamCluster: StreamCluster?) {
-        B.recycler.withModels {
+        binding.recycler.withModels {
             setFilterDuplicates(true)
             if (streamCluster == null) {
                 for (i in 1..6) {

app/src/main/java/com/aurora/store/view/ui/games/GamesContainerFragment.kt

@@ -20,14 +20,11 @@
 package com.aurora.store.view.ui.games
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.Lifecycle
 import androidx.viewpager2.adapter.FragmentStateAdapter
-import com.aurora.gplayapi.data.models.AuthData
 import com.aurora.store.R
 import com.aurora.store.data.providers.AuthProvider
 import com.aurora.store.databinding.FragmentAppsGamesBinding
@@ -40,48 +37,31 @@ import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
 
 
-class GamesContainerFragment : Fragment() {
+class GamesContainerFragment : Fragment(R.layout.fragment_apps_games) {
 
-    private lateinit var B: FragmentAppsGamesBinding
-    private lateinit var authData: AuthData
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        B = FragmentAppsGamesBinding.bind(
-            inflater.inflate(
-                R.layout.fragment_apps_games,
-                container,
-                false
-            )
-        )
-        return B.root
-    }
+    private var _binding: FragmentAppsGamesBinding? = null
+    private val binding get() = _binding!!
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        authData = AuthProvider.with(requireContext()).getAuthData()
-        setupViewPager()
-    }
+        _binding = FragmentAppsGamesBinding.bind(view)
 
-    private fun setupViewPager() {
+        // ViewPager
         val isForYouEnabled = Preferences.getBoolean(
             requireContext(),
             Preferences.PREFERENCE_FOR_YOU
         )
 
-        val isGoogleAccount = !authData.isAnonymous
+        val isGoogleAccount = !AuthProvider.with(requireContext()).getAuthData().isAnonymous
 
-        B.pager.adapter = ViewPagerAdapter(
+        binding.pager.adapter = ViewPagerAdapter(
             childFragmentManager,
             lifecycle,
             isGoogleAccount,
             isForYouEnabled
         )
 
-        B.pager.isUserInputEnabled = false
+        binding.pager.isUserInputEnabled = false
 
         val tabTitles: MutableList<String> = mutableListOf<String>().apply {
             if (isForYouEnabled) {
@@ -96,11 +76,20 @@ class GamesContainerFragment : Fragment() {
             }
         }
 
-        TabLayoutMediator(B.tabLayout, B.pager, true) { tab: TabLayout.Tab, position: Int ->
+        TabLayoutMediator(
+            binding.tabLayout,
+            binding.pager,
+            true
+        ) { tab: TabLayout.Tab, position: Int ->
             tab.text = tabTitles[position]
         }.attach()
     }
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
     internal class ViewPagerAdapter(
         fragment: FragmentManager,
         lifecycle: Lifecycle,

app/src/main/java/com/aurora/store/view/ui/games/TopChartFragment.kt

@@ -1,159 +0,0 @@
-/*
- * Aurora Store
- *  Copyright (C) 2021, Rahul Kumar Patel <whyorean@gmail.com>
- *
- *  Aurora Store is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  Aurora Store is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with Aurora Store.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-package com.aurora.store.view.ui.games
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.lifecycle.ViewModelProvider
-import com.aurora.Constants
-import com.aurora.gplayapi.data.models.StreamCluster
-import com.aurora.store.R
-import com.aurora.store.databinding.FragmentTopContainerBinding
-import com.aurora.store.view.custom.recycler.EndlessRecyclerOnScrollListener
-import com.aurora.store.view.epoxy.views.AppProgressViewModel_
-import com.aurora.store.view.epoxy.views.app.AppListViewModel_
-import com.aurora.store.view.epoxy.views.shimmer.AppListViewShimmerModel_
-import com.aurora.store.view.ui.commons.BaseFragment
-import com.aurora.store.viewmodel.topchart.BaseChartViewModel
-import com.aurora.store.viewmodel.topchart.TopFreeAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TopFreeGameChartViewModel
-import com.aurora.store.viewmodel.topchart.TopGrossingAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TopGrossingGameChartViewModel
-import com.aurora.store.viewmodel.topchart.TopPaidAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TopPaidGameChartViewModel
-import com.aurora.store.viewmodel.topchart.TrendingAppChartViewModel
-import com.aurora.store.viewmodel.topchart.TrendingGameChartViewModel
-
-class TopChartFragment : BaseFragment() {
-
-    private lateinit var VM: BaseChartViewModel
-    private lateinit var B: FragmentTopContainerBinding
-
-    private var chartType = 0
-    private var chartCategory = 0
-
-    companion object {
-        @JvmStatic
-        fun newInstance(chartType: Int, chartCategory: Int): TopChartFragment {
-            return TopChartFragment().apply {
-                arguments = Bundle().apply {
-                    putInt(Constants.TOP_CHART_TYPE, chartType)
-                    putInt(Constants.TOP_CHART_CATEGORY, chartCategory)
-                }
-            }
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        B = FragmentTopContainerBinding.bind(
-            inflater.inflate(
-                R.layout.fragment_top_container,
-                container,
-                false
-            )
-        )
-
-        val bundle = arguments
-        if (bundle != null) {
-            chartType = bundle.getInt(Constants.TOP_CHART_TYPE, 0)
-            chartCategory = bundle.getInt(Constants.TOP_CHART_CATEGORY, 0)
-        }
-
-        when (chartType) {
-            0 -> when (chartCategory) {
-                0 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopFreeAppChartViewModel::class.java)
-                1 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopGrossingAppChartViewModel::class.java)
-                2 -> VM =
-                    ViewModelProvider(requireActivity()).get(TrendingAppChartViewModel::class.java)
-                3 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopPaidAppChartViewModel::class.java)
-            }
-
-            1 -> when (chartCategory) {
-                0 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopFreeGameChartViewModel::class.java)
-                1 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopGrossingGameChartViewModel::class.java)
-                2 -> VM =
-                    ViewModelProvider(requireActivity()).get(TrendingGameChartViewModel::class.java)
-                3 -> VM =
-                    ViewModelProvider(requireActivity()).get(TopPaidGameChartViewModel::class.java)
-            }
-        }
-
-
-
-        return B.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-
-        VM.liveData.observe(viewLifecycleOwner) {
-            updateController(it)
-        }
-
-        B.recycler.addOnScrollListener(object : EndlessRecyclerOnScrollListener() {
-            override fun onLoadMore(currentPage: Int) {
-                VM.nextCluster()
-            }
-        })
-
-        updateController(null)
-    }
-
-    private fun updateController(streamCluster: StreamCluster?) {
-        B.recycler.withModels {
-            setFilterDuplicates(true)
-            if (streamCluster == null) {
-                for (i in 1..6) {
-                    add(
-                        AppListViewShimmerModel_()
-                            .id(i)
-                    )
-                }
-            } else {
-                streamCluster.clusterAppList.forEach { app ->
-                    add(
-                        AppListViewModel_()
-                            .id(app.id)
-                            .app(app)
-                            .click { _ -> openDetailsFragment(app.packageName, app) }
-                    )
-                }
-
-                if (streamCluster.hasNext()) {
-                    add(
-                        AppProgressViewModel_()
-                            .id("progress")
-                    )
-                }
-            }
-        }
-    }
-}

app/src/main/java/com/aurora/store/viewmodel/topchart/AppChartViewModel.kt

@@ -1,60 +0,0 @@
-/*
- * Aurora Store
- *  Copyright (C) 2021, Rahul Kumar Patel <whyorean@gmail.com>
- *
- *  Aurora Store is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  Aurora Store is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with Aurora Store.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-package com.aurora.store.viewmodel.topchart
-
-import android.app.Application
-import com.aurora.gplayapi.helpers.TopChartsHelper
-
-class TopFreeAppChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.APPLICATION
-        chart = TopChartsHelper.Chart.TOP_SELLING_FREE
-        observe()
-    }
-}
-
-class TopGrossingAppChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.APPLICATION
-        chart = TopChartsHelper.Chart.TOP_GROSSING
-        observe()
-    }
-}
-
-class TrendingAppChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.APPLICATION
-        chart = TopChartsHelper.Chart.MOVERS_SHAKERS
-        observe()
-    }
-}
-
-class TopPaidAppChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.APPLICATION
-        chart = TopChartsHelper.Chart.TOP_SELLING_PAID
-        observe()
-    }
-}
-

app/src/main/java/com/aurora/store/viewmodel/topchart/GameChartViewModel.kt

@@ -1,60 +0,0 @@
-/*
- * Aurora Store
- *  Copyright (C) 2021, Rahul Kumar Patel <whyorean@gmail.com>
- *
- *  Aurora Store is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  Aurora Store is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with Aurora Store.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-package com.aurora.store.viewmodel.topchart
-
-import android.app.Application
-import com.aurora.gplayapi.helpers.TopChartsHelper
-
-class TopFreeGameChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.GAME
-        chart = TopChartsHelper.Chart.TOP_SELLING_FREE
-        observe()
-    }
-}
-
-class TopGrossingGameChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.GAME
-        chart = TopChartsHelper.Chart.TOP_GROSSING
-        observe()
-    }
-}
-
-class TrendingGameChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.GAME
-        chart = TopChartsHelper.Chart.MOVERS_SHAKERS
-        observe()
-    }
-}
-
-class TopPaidGameChartViewModel(application: Application) : BaseChartViewModel(application) {
-
-    init {
-        type = TopChartsHelper.Type.GAME
-        chart = TopChartsHelper.Chart.TOP_SELLING_PAID
-        observe()
-    }
-}
-

app/src/main/java/com/aurora/store/viewmodel/topchart/TopChartViewModel.kt

@@ -33,29 +33,19 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.supervisorScope
 
-abstract class BaseChartViewModel(application: Application) : BaseAndroidViewModel(application) {
+class TopChartViewModel(application: Application) : BaseAndroidViewModel(application) {
 
     private val authData: AuthData = AuthProvider.with(application).getAuthData()
     private val topChartsHelper: TopChartsHelper =
         TopChartsHelper(authData).using(HttpClient.getPreferredClient(application))
 
-    lateinit var type: TopChartsHelper.Type
-    lateinit var chart: TopChartsHelper.Chart
-
     val liveData: MutableLiveData<StreamCluster> = MutableLiveData()
     var streamCluster: StreamCluster = StreamCluster()
 
-    fun getStreamCluster(
-        type: TopChartsHelper.Type,
-        chart: TopChartsHelper.Chart
-    ): StreamCluster {
-        return topChartsHelper.getCluster(type, chart)
-    }
-
-    override fun observe() {
+    fun getStreamCluster(type: TopChartsHelper.Type, chart: TopChartsHelper.Chart) {
         viewModelScope.launch(Dispatchers.IO) {
             try {
-                streamCluster = getStreamCluster(type, chart)
+                streamCluster = topChartsHelper.getCluster(type, chart)
                 liveData.postValue(streamCluster)
             } catch (e: Exception) {
                 requestState = RequestState.Pending
@@ -63,6 +53,8 @@ abstract class BaseChartViewModel(application: Application) : BaseAndroidViewMod
         }
     }
 
+    override fun observe() {}
+
     fun nextCluster() {
         viewModelScope.launch(Dispatchers.IO) {
             supervisorScope {