helper is able to cancel accepted request

app/src/main/java/app/nexd/android/ui/helper/detail/HelperDetailFragment.kt

@@ -65,7 +65,7 @@ class HelperDetailFragment : Fragment() {
 
         viewModel.idOfRequest.observe(viewLifecycleOwner, Observer { idOfRequest ->
             binding.buttonAccept.setOnClickListener {
-                viewModel.acceptRequest(idOfRequest)
+                viewModel.acceptOrDeclineRequest(idOfRequest)
                 findNavController().popBackStack()
             }
         })

app/src/main/java/app/nexd/android/ui/helper/detail/HelperDetailViewModel.kt

@@ -1,6 +1,9 @@
 package app.nexd.android.ui.helper.detail
 
+import android.graphics.Typeface
 import android.util.Log
+import android.widget.Button
+import androidx.databinding.BindingAdapter
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import app.nexd.android.Api
@@ -24,12 +27,18 @@ class HelperDetailViewModel(private val api: Api) : ViewModel() {
     val city = MutableLiveData<String>()
     val requestArticles = MutableLiveData<List<HelpRequestArticle>>()
     val requestIsAccepted = MutableLiveData<Boolean>()
-    val buttonText = MutableLiveData<String>()
     val idOfRequest = MutableLiveData<Long>()
 
     private val compositeDisposable = CompositeDisposable()
 
-    fun acceptRequest(requestId: Long) {
+    fun acceptOrDeclineRequest(requestId: Long) {
+        requestIsAccepted.value?.let {
+            if (it) declineRequest(requestId)
+            else acceptRequest(requestId)
+        }
+    }
+
+    private fun acceptRequest(requestId: Long) {
         api.helpListsControllerGetUserLists(null)
             .map { lists ->
                 if (lists.any { it.status == HelpList.StatusEnum.ACTIVE })
@@ -57,6 +66,18 @@ class HelperDetailViewModel(private val api: Api) : ViewModel() {
             .blockingSubscribe()
     }
 
+    private fun declineRequest(requestId: Long) {
+        val helpListIdFromRequest =
+            api.helpRequestsControllerGetSingleRequest(requestId).blockingFirst().helpListId
+        helpListIdFromRequest?.let { helpListId ->
+            api.helpListsControllerDeleteHelpRequestFromHelpList(helpListId, requestId)
+                .subscribeOn(io())
+                .doOnError {
+                    Log.e("Error", it.message.toString())
+                }.blockingSubscribe()
+        }
+    }
+
     fun setInfo(requestId: Long) {
         val observable = api.helpRequestsControllerGetSingleRequest(requestId)
 
@@ -84,4 +105,15 @@ class HelperDetailViewModel(private val api: Api) : ViewModel() {
         super.onCleared()
         compositeDisposable.clear()
     }
+
+    object ButtonTextStyleBinding {
+        @JvmStatic
+        @BindingAdapter("app:textStyle")
+        fun setTextStyle(button: Button, style: String) {
+            when (style) {
+                "bold" -> button.setTypeface(null, Typeface.BOLD)
+                else -> button.setTypeface(null, Typeface.NORMAL)
+            }
+        }
+    }
 }

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

@@ -128,8 +128,9 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@drawable/rounded_white"
-            android:enabled="@{!viewModel.requestIsAccepted}"
-            android:text="@{viewModel.requestIsAccepted? @string/helper_request_detail_button_accepted : @string/helper_request_detail_button_accept}"
+            android:text="@{viewModel.requestIsAccepted? @string/helper_request_detail_button_cancel : @string/helper_request_detail_button_accept}"
+            android:textColor="@{!viewModel.requestIsAccepted? @android:color/black : @android:color/holo_red_dark}"
+            app:textStyle='@{!viewModel.requestIsAccepted? "normal" : "bold"}'
             android:textAllCaps="false"
             android:textSize="20sp"
             app:layout_constraintBottom_toBottomOf="parent"

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

@@ -192,7 +192,7 @@
                 android:autofillHints="postal-code"
                 android:background="@drawable/rounded_white"
                 android:error="@{viewModel.zipCodeError}"
-                android:inputType="number"
+                android:inputType="textPostalAddress"
                 android:nextFocusDown="@id/editText_city_value"
                 android:padding="10dp"
                 android:text="@={viewModel.zipCode}"

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

@@ -57,6 +57,7 @@
     <string name="helper_request_detail_screen_title">"Zu Einkaufen"</string>
     <string name="helper_request_detail_button_accepted">"Anfrage bereits angenommen"</string>
     <string name="helper_request_detail_button_accept">"Mach ich!"</string>
+    <string name="helper_request_detail_button_cancel">"Kann ich leider nicht machen "</string>
     <string name="delivery_screen_title">"Abgabe!"</string>
     <string name="delivery_dialog_deliver_title">"Abgeben"</string>
     <string name="delivery_dialog_deliver_description">"Bitte bestätige die Abgabe aller angenommen Aufträge"</string>

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

@@ -57,6 +57,7 @@
     <string name="helper_request_detail_screen_title">"To collect"</string>
     <string name="helper_request_detail_button_accepted">"Request already accepted"</string>
     <string name="helper_request_detail_button_accept">"Will do!"</string>
+    <string name="helper_request_detail_button_cancel">"Have to cancel"</string>
     <string name="delivery_screen_title">"Delivery!"</string>
     <string name="delivery_dialog_deliver_title">"Deliver"</string>
     <string name="delivery_dialog_deliver_description">"Confirm the delivery of all accepted requests"</string>