optimze mib cards loading

app/src/main/java/sh/sar/basedbank/ui/home/CardSettingsFragment.kt

@@ -101,7 +101,9 @@ class CardSettingsFragment : Fragment() {
                 tvCardOwner.text = card.cardHolderName
                 tvCardNumber.text = PayWithCardFragment.formatMasked(card.maskedCardNumber)
                 tvCardType.text = card.cardTypeDesc
-                PayWithCardFragment.loadCardImage(ivCardImage, PayWithCardFragment.cardImageAsset(card))
+                val assetPath = PayWithCardFragment.cardImageAsset(card)
+                if (assetPath != null) PayWithCardFragment.loadCardImage(ivCardImage, assetPath)
+                else ivCardImage.setImageDrawable(null)
                 val wip = View.OnClickListener {
                     Toast.makeText(context, R.string.work_in_progress, Toast.LENGTH_SHORT).show()
                 }

app/src/main/java/sh/sar/basedbank/ui/home/HomeActivity.kt

@@ -64,6 +64,7 @@ import sh.sar.basedbank.api.mib.MibFinanceDeal
 import sh.sar.basedbank.util.AccountCache
 import sh.sar.basedbank.util.ContactsCache
 import sh.sar.basedbank.util.CredentialStore
+import sh.sar.basedbank.util.CardsCache
 import sh.sar.basedbank.util.FinancingCache
 import sh.sar.basedbank.util.ForeignLimitsCache
 
@@ -1011,6 +1012,7 @@ fun applyNavLabelVisibility() {
                     existing.removeAll { it.loginTag == "mib_$loginId" }
                     existing += cards
                     viewModel.mibCards.postValue(existing)
+                    CardsCache.save(this@HomeActivity, existing)
                 }
             } catch (_: Exception) { }
         }

app/src/main/java/sh/sar/basedbank/ui/home/PayWithCardFragment.kt

@@ -18,6 +18,7 @@ import androidx.recyclerview.widget.RecyclerView
 import sh.sar.basedbank.R
 import sh.sar.basedbank.api.mib.MibCard
 import sh.sar.basedbank.databinding.FragmentPayWithCardBinding
+import sh.sar.basedbank.util.CardsCache
 
 class PayWithCardFragment : Fragment() {
 
@@ -57,10 +58,13 @@ class PayWithCardFragment : Fragment() {
             binding.recyclerView.visibility = if (cards.isEmpty()) View.GONE else View.VISIBLE
         }
 
-        if (viewModel.mibCards.value == null) {
+        val cached = CardsCache.load(requireContext())
+        if (cached.isNotEmpty()) {
+            viewModel.mibCards.value = cached
+        } else {
             binding.loadingView.visibility = View.VISIBLE
-            (activity as? HomeActivity)?.triggerRefreshCards()
         }
+        (activity as? HomeActivity)?.triggerRefreshCards()
     }
 
     override fun onResume() {
@@ -101,7 +105,9 @@ class PayWithCardFragment : Fragment() {
                 tvCardOwner.text = card.cardHolderName
                 tvCardNumber.text = formatMasked(card.maskedCardNumber)
                 tvCardType.text = card.cardTypeDesc
-                loadCardImage(ivCardImage, cardImageAsset(card))
+                val assetPath = cardImageAsset(card)
+                if (assetPath != null) loadCardImage(ivCardImage, assetPath)
+                else ivCardImage.setImageDrawable(null)
                 btnPayQr.setOnClickListener {
                     Toast.makeText(context, R.string.work_in_progress, Toast.LENGTH_SHORT).show()
                 }
@@ -113,13 +119,11 @@ class PayWithCardFragment : Fragment() {
     }
 
     companion object {
-        fun cardImageAsset(card: MibCard): String {
-            val desc = card.cardTypeDesc.lowercase()
-            return when {
-                "corporate" in desc || "business" in desc -> "cards/mib/visa_business.jpg"
-                "platinum" in desc -> "cards/mib/cards-platinum-bg-w-logo-1.jpg"
-                else -> "cards/mib/cards-blue-bg-w-logo-1.jpg"
-            }
+        fun cardImageAsset(card: MibCard): String? = when (card.cardType) {
+            "53" -> "cards/mib/visa_black_platinum.jpg"
+            "57" -> "cards/mib/visa_blue_everyday.jpg"
+            "70" -> "cards/mib/visa_business.jpg"
+            else -> null
         }
 
         fun loadCardImage(imageView: ImageView, assetPath: String) {
@@ -129,7 +133,7 @@ class PayWithCardFragment : Fragment() {
                 }
                 imageView.setImageBitmap(bitmap)
             } catch (_: Exception) {
-                imageView.setImageResource(android.R.color.darker_gray)
+                imageView.setImageDrawable(null)
             }
         }
 

app/src/main/java/sh/sar/basedbank/util/CardsCache.kt

@@ -0,0 +1,57 @@
+package sh.sar.basedbank.util
+
+import android.content.Context
+import org.json.JSONArray
+import org.json.JSONObject
+import sh.sar.basedbank.api.mib.MibCard
+
+object CardsCache {
+
+    private const val PREFS = "cards_cache"
+    private const val KEY_MIB_CARDS = "mib_cards"
+
+    fun save(context: Context, cards: List<MibCard>) {
+        val arr = JSONArray()
+        for (c in cards) {
+            arr.put(JSONObject().apply {
+                put("cardId", c.cardId)
+                put("maskedCardNumber", c.maskedCardNumber)
+                put("cardStatus", c.cardStatus)
+                put("cardType", c.cardType)
+                put("cardTypeDesc", c.cardTypeDesc)
+                put("customerId", c.customerId)
+                put("phoneNumber", c.phoneNumber)
+                put("cardHolderName", c.cardHolderName)
+                put("loginTag", c.loginTag)
+            })
+        }
+        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+            .edit().putString(KEY_MIB_CARDS, CacheEncryption.encrypt(arr.toString())).apply()
+    }
+
+    fun load(context: Context): List<MibCard> {
+        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+            .getString(KEY_MIB_CARDS, null) ?: return emptyList()
+        return try {
+            val arr = JSONArray(CacheEncryption.decrypt(raw))
+            (0 until arr.length()).map { i ->
+                val o = arr.getJSONObject(i)
+                MibCard(
+                    cardId           = o.optString("cardId"),
+                    maskedCardNumber = o.optString("maskedCardNumber"),
+                    cardStatus       = o.optString("cardStatus"),
+                    cardType         = o.optString("cardType"),
+                    cardTypeDesc     = o.optString("cardTypeDesc"),
+                    customerId       = o.optString("customerId"),
+                    phoneNumber      = o.optString("phoneNumber"),
+                    cardHolderName   = o.optString("cardHolderName"),
+                    loginTag         = o.optString("loginTag")
+                )
+            }
+        } catch (_: Exception) { emptyList() }
+    }
+
+    fun clear(context: Context) {
+        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit().clear().apply()
+    }
+}