show charger status "unknown" as question mark (fixes #7)

app/src/main/java/net/vonforst/evmap/adapter/DataBindingAdapters.kt

@@ -65,14 +65,16 @@ fun chargepointWithAvailability(
     availability: Map<Chargepoint, List<ChargepointStatus>>?
 ): List<ConnectorAdapter.ChargepointWithAvailability>? {
     return chargepoints?.map {
-        ConnectorAdapter.ChargepointWithAvailability(
-            it, availability?.get(it)?.count { it == ChargepointStatus.AVAILABLE }
-        )
+        val status = availability?.get(it)
+        ConnectorAdapter.ChargepointWithAvailability(it, status)
     }
 }
 
 class ConnectorAdapter : DataBindingAdapter<ConnectorAdapter.ChargepointWithAvailability>() {
-    data class ChargepointWithAvailability(val chargepoint: Chargepoint, val available: Int?) :
+    data class ChargepointWithAvailability(
+        val chargepoint: Chargepoint,
+        val status: List<ChargepointStatus>?
+    ) :
         Equatable
 
     override fun getItemViewType(position: Int): Int = R.layout.item_connector

app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt

@@ -12,6 +12,7 @@ import androidx.recyclerview.widget.RecyclerView
 import androidx.viewpager2.widget.ViewPager2
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import net.vonforst.evmap.R
+import net.vonforst.evmap.api.availability.ChargepointStatus
 import net.vonforst.evmap.api.goingelectric.Chargepoint
 
 
@@ -82,25 +83,30 @@ fun setContentDescriptionResource(imageView: ImageView, resource: Int) {
 }
 
 @BindingAdapter("tintAvailability")
-fun setImageTintAvailability(view: ImageView, available: Int?) {
+fun setImageTintAvailability(view: ImageView, available: List<ChargepointStatus>?) {
     view.imageTintList = ColorStateList.valueOf(availabilityColor(available, view.context))
 }
 
 @BindingAdapter("textColorAvailability")
-fun setTextColorAvailability(view: TextView, available: Int?) {
+fun setTextColorAvailability(view: TextView, available: List<ChargepointStatus>?) {
     view.setTextColor(availabilityColor(available, view.context))
 }
 
 @BindingAdapter("backgroundTintAvailability")
-fun setBackgroundTintAvailability(view: View, available: Int?) {
+fun setBackgroundTintAvailability(view: View, available: List<ChargepointStatus>?) {
     view.backgroundTintList = ColorStateList.valueOf(availabilityColor(available, view.context))
 }
 
 private fun availabilityColor(
-    available: Int?,
+    status: List<ChargepointStatus>?,
     context: Context
-): Int = if (available != null) {
-    if (available > 0) {
+): Int = if (status != null) {
+    val unknown = status.any { it == ChargepointStatus.UNKNOWN }
+    val available = status.count { it == ChargepointStatus.AVAILABLE }
+
+    if (unknown) {
+        ContextCompat.getColor(context, R.color.unknown)
+    } else if (available > 0) {
         ContextCompat.getColor(context, R.color.available)
     } else {
         ContextCompat.getColor(context, R.color.unavailable)
@@ -108,4 +114,16 @@ private fun availabilityColor(
 } else {
     val ta = context.theme.obtainStyledAttributes(intArrayOf(R.attr.colorControlNormal))
     ta.getColor(0, 0)
+}
+
+fun availabilityText(status: List<ChargepointStatus>?): String? {
+    if (status == null) return null
+
+    val total = status.size
+    val unknown = status.count { it == ChargepointStatus.UNKNOWN }
+    val available = status.count { it == ChargepointStatus.AVAILABLE }
+
+    return if (unknown > 0) {
+        if (unknown == total) "?" else "$available?"
+    } else available.toString()
 }

app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt

@@ -81,18 +81,18 @@ class FavoritesViewModel(application: Application, geApiKey: String) :
 
     data class FavoritesListItem(
         val charger: ChargeLocation,
-        val available: Resource<Int>,
+        val available: Resource<List<ChargepointStatus>>,
         val total: Int,
         val distance: Double?
     ) : Equatable
 
-    private fun totalAvailable(id: Long): Resource<Int> {
+    private fun totalAvailable(id: Long): Resource<List<ChargepointStatus>> {
         val availability = availability.value?.get(id) ?: return Resource.error(null, null)
         if (availability.status != Status.SUCCESS) {
             return Resource(availability.status, null, availability.message)
         } else {
             val values = availability.data?.status?.values ?: return Resource.error(null, null)
-            return Resource.success(values.sumBy { it.filter { it == ChargepointStatus.AVAILABLE }.size })
+            return Resource.success(values.flatten())
         }
     }