fix: Retain chip state and search results after re-selecting the chip

app/src/main/java/org/fossasia/openevent/general/search/SearchResultsFragment.kt

@@ -10,7 +10,6 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.CompoundButton
 import androidx.core.content.ContextCompat
-import androidx.core.view.children
 import androidx.core.view.isVisible
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
@@ -76,7 +75,7 @@ class SearchResultsFragment : Fragment(), CompoundButton.OnCheckedChangeListener
         rootView = inflater.inflate(R.layout.fragment_search_results, container, false)
         setPostponeSharedElementTransition()
 
-        setChips(eventDate, eventType)
+        setChips()
         setToolbar(activity, getString(R.string.search_results))
         setHasOptionsMenu(true)
 
@@ -125,17 +124,6 @@ class SearchResultsFragment : Fragment(), CompoundButton.OnCheckedChangeListener
                 rootView.searchRootLayout.longSnackbar(it)
             })
 
-        searchViewModel.chipClickable
-            .nonNull()
-            .observe(this, Observer {
-                rootView.chipGroup.children.forEach { chip ->
-                    if (chip is Chip) {
-                        chip.isClickable = it
-                        if (chip.isChecked) chip.isClickable = false
-                    }
-                }
-            })
-
         rootView.retry.setOnClickListener {
             performSearch()
         }
@@ -159,7 +147,6 @@ class SearchResultsFragment : Fragment(), CompoundButton.OnCheckedChangeListener
             date != getString(R.string.anytime) && type != getString(R.string.anything) -> {
                 addChips(date, true)
                 addChips(type, true)
-                addChips(getString(R.string.clear_all), false)
             }
             date != getString(R.string.anytime) && type == getString(R.string.anything) -> {
                 addChips(date, true)
@@ -241,7 +228,6 @@ class SearchResultsFragment : Fragment(), CompoundButton.OnCheckedChangeListener
         val date = eventDate
         val freeEvents = safeArgs.freeEvents
         val sortBy = safeArgs.sort
-        searchViewModel.setChipNotClickable()
         searchViewModel.searchEvent = query
         searchViewModel.loadEvents(location, date, type, freeEvents, sortBy)
     }
@@ -282,46 +268,31 @@ class SearchResultsFragment : Fragment(), CompoundButton.OnCheckedChangeListener
     }
 
     override fun onCheckedChanged(buttonView: CompoundButton?, isChecked: Boolean) {
-        if (isChecked) {
-            if (buttonView?.text == getString(R.string.clear_all)) {
-                searchViewModel.savedTime = null
-                searchViewModel.savedType = null
-                eventDate = getString(R.string.anytime)
-                eventType = getString(R.string.anything)
-                rootView.noSearchResults.isVisible = false
-                favoriteEventsRecyclerAdapter.submitList(null)
-                searchViewModel.clearEvents()
-                searchViewModel.clearTimeAndType()
-                if (searchViewModel.isConnected()) performSearch()
-                else showNoInternetError(true)
-                setChips()
+        days.forEach {
+            if (it == buttonView?.text) {
+                searchViewModel.savedTime = if (isChecked) it else null
+                eventDate = if (isChecked) it else getString(R.string.anytime)
+                setChips(date = it)
+                refreshEvents()
+                return@forEach
             }
-            days.forEach {
-                if (it == buttonView?.text) {
-                    searchViewModel.savedTime = it
-                    eventDate = it
-                    setChips(date = it)
-                    rootView.noSearchResults.isVisible = false
-                    favoriteEventsRecyclerAdapter.submitList(null)
-                    searchViewModel.clearEvents()
-                    if (searchViewModel.isConnected()) performSearch()
-                    else showNoInternetError(true)
-                    return@forEach
-                }
-            }
-            eventTypesList?.forEach {
-                if (it.name == buttonView?.text) {
-                    searchViewModel.savedType = it.name
-                    eventType = it.name
-                    setChips(type = it.name)
-                    rootView.noSearchResults.isVisible = false
-                    favoriteEventsRecyclerAdapter.submitList(null)
-                    searchViewModel.clearEvents()
-                    if (searchViewModel.isConnected()) performSearch()
-                    else showNoInternetError(true)
-                    return@forEach
-                }
+        }
+        eventTypesList?.forEach {
+            if (it.name == buttonView?.text) {
+                searchViewModel.savedType = if (isChecked) it.name else null
+                eventType = if (isChecked) it.name else getString(R.string.anything)
+                refreshEvents()
+                return@forEach
             }
         }
     }
+
+    private fun refreshEvents() {
+        setChips()
+        rootView.noSearchResults.isVisible = false
+        favoriteEventsRecyclerAdapter.submitList(null)
+        searchViewModel.clearEvents()
+        if (searchViewModel.isConnected()) performSearch()
+        else showNoInternetError(true)
+    }
 }

app/src/main/java/org/fossasia/openevent/general/search/SearchViewModel.kt

@@ -41,8 +41,6 @@ class SearchViewModel(
     private val mutableError = SingleLiveEvent<String>()
     val error: LiveData<String> = mutableError
     val connection: LiveData<Boolean> = mutableConnectionLiveData
-    private val mutableChipClickable = MutableLiveData<Boolean>()
-    val chipClickable: LiveData<Boolean> = mutableChipClickable
     var searchEvent: String? = null
     var savedLocation: String? = null
     var savedType: String? = null
@@ -78,13 +76,8 @@ class SearchViewModel(
         savedTime = preference.getString(SAVED_TIME)
     }
 
-    fun setChipNotClickable() {
-        mutableChipClickable.value = false
-    }
-
     fun loadEvents(location: String, time: String, type: String, freeEvents: Boolean, sortBy: String) {
         if (mutableEvents.value != null) {
-            mutableChipClickable.value = true
             return
         }
         if (!isConnected()) return
@@ -316,7 +309,6 @@ class SearchViewModel(
             .distinctUntilChanged()
             .doOnSubscribe {
                 mutableShowShimmerResults.value = true
-                mutableChipClickable.value = false
             }.doFinally {
                 stopLoaders()
             }.subscribe({
@@ -331,7 +323,6 @@ class SearchViewModel(
 
     private fun stopLoaders() {
         mutableShowShimmerResults.value = false
-        mutableChipClickable.value = true
     }
 
     fun setFavorite(eventId: Long, favorite: Boolean) {
@@ -351,13 +342,6 @@ class SearchViewModel(
         mutableEvents.value = null
     }
 
-    fun clearTimeAndType() {
-        preference.apply {
-            putString(SAVED_TYPE, "Anything")
-            putString(SAVED_TIME, "Anytime")
-        }
-    }
-
     override fun onCleared() {
         super.onCleared()
         compositeDisposable.clear()