add support for fahipay images

app/src/main/java/sh/sar/basedbank/api/fahipay/FahipayLoginFlow.kt

@@ -237,7 +237,8 @@ class FahipayLoginFlow {
                     reference = e.optString("transaction").takeIf { it.isNotBlank() },
                     accountNumber = accountNumber,
                     accountDisplayName = accountDisplayName,
-                    source = "FAHIPAY"
+                    source = "FAHIPAY",
+                    iconUrl = e.optString("icon").takeIf { it.isNotBlank() }
                 )
             }
             Pair(list, total)

app/src/main/java/sh/sar/basedbank/api/mib/MibModels.kt

@@ -82,7 +82,8 @@ data class Transaction(
     val reference: String?,
     val accountNumber: String,
     val accountDisplayName: String,
-    val source: String                  // "MIB", "BML", "BML_CARD"
+    val source: String,                 // "MIB", "BML", "BML_CARD", "FAHIPAY"
+    val iconUrl: String? = null         // merchant icon URL (Fahipay only)
 )
 
 data class MibFinanceDeal(

app/src/main/java/sh/sar/basedbank/api/mib/TransactionCache.kt

@@ -22,6 +22,7 @@ object TransactionCache {
                 put("accountNumber", t.accountNumber)
                 put("accountDisplayName", t.accountDisplayName)
                 put("source", t.source)
+                if (t.iconUrl != null) put("iconUrl", t.iconUrl)
             })
             File(context.cacheDir, "tx_$key.json").writeText(CacheEncryption.encrypt(arr.toString()))
         } catch (_: Exception) {}
@@ -46,7 +47,8 @@ object TransactionCache {
                 reference = o.optString("reference").takeIf { it.isNotBlank() },
                 accountNumber = o.optString("accountNumber"),
                 accountDisplayName = o.optString("accountDisplayName"),
-                source = o.optString("source")
+                source = o.optString("source"),
+                iconUrl = o.optString("iconUrl").takeIf { it.isNotBlank() }
             )
         }
     } catch (_: Exception) { emptyList() }

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

@@ -31,7 +31,9 @@ class AccountHistoryAdapter(
     private val displayItems = mutableListOf<Item>()
     private var lastInsertedDateKey = ""
     private val imageCache = mutableMapOf<String, Bitmap>()
+    private val iconUrlCache = mutableMapOf<String, Bitmap>()
     var onImageNeeded: ((counterpartyName: String) -> Unit)? = null
+    var onIconUrlNeeded: ((url: String) -> Unit)? = null
 
     fun updateImage(counterpartyName: String, bitmap: Bitmap) {
         imageCache[counterpartyName] = bitmap
@@ -41,6 +43,14 @@ class AccountHistoryAdapter(
         }
     }
 
+    fun updateIconUrl(url: String, bitmap: Bitmap) {
+        iconUrlCache[url] = bitmap
+        displayItems.forEachIndexed { i, item ->
+            if (item is Item.Trx && item.transaction.iconUrl == url)
+                notifyItemChanged(i + 1)  // +1 for account header at position 0
+        }
+    }
+
     private var _showLoadingFooter = false
     var showLoadingFooter: Boolean
         get() = _showLoadingFooter
@@ -182,7 +192,10 @@ class AccountHistoryAdapter(
             val name = trx.counterpartyName ?: trx.description
             val initial = name.firstOrNull()?.uppercaseChar()?.toString() ?: "?"
 
-            val bitmap = trx.counterpartyName?.let { imageCache[it] }
+            val iconBitmap = trx.iconUrl?.let { iconUrlCache[it] }
+            val contactBitmap = if (iconBitmap == null) trx.counterpartyName?.let { imageCache[it] } else null
+            val bitmap = iconBitmap ?: contactBitmap
+
             if (bitmap != null) {
                 val rd = RoundedBitmapDrawableFactory.create(b.root.resources, bitmap)
                 rd.isCircular = true
@@ -196,7 +209,8 @@ class AccountHistoryAdapter(
                 b.fvAvatar.background = circle
                 b.tvInitial.visibility = View.VISIBLE
                 b.tvInitial.text = initial
-                if (trx.counterpartyName != null) onImageNeeded?.invoke(trx.counterpartyName)
+                if (trx.iconUrl != null) onIconUrlNeeded?.invoke(trx.iconUrl)
+                else if (trx.counterpartyName != null) onImageNeeded?.invoke(trx.counterpartyName)
             }
             b.tvDescription.text = trx.description
 

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

@@ -1,6 +1,8 @@
 package sh.sar.basedbank.ui.home
 
 import android.graphics.BitmapFactory
+import okhttp3.OkHttpClient
+import okhttp3.Request
 import android.os.Bundle
 import android.text.Editable
 import android.text.TextWatcher
@@ -27,6 +29,7 @@ import sh.sar.basedbank.api.mib.Transaction
 import sh.sar.basedbank.api.mib.TransactionCache
 import sh.sar.basedbank.databinding.FragmentAccountHistoryBinding
 import sh.sar.basedbank.util.ContactImageCache
+import sh.sar.basedbank.util.MerchantIconCache
 import java.text.SimpleDateFormat
 import java.util.Calendar
 import java.util.Locale
@@ -44,6 +47,7 @@ class AccountHistoryFragment : Fragment() {
     private var searchQuery = ""
     private var firstPageDone = false
     private val pendingImageNames = mutableSetOf<String>()
+    private val pendingIconUrls = mutableSetOf<String>()
 
     // Pagination state
     private var mibNextStart = 1
@@ -77,6 +81,7 @@ class AccountHistoryFragment : Fragment() {
 
         adapter = AccountHistoryAdapter(account)
         adapter.onImageNeeded = { name -> loadContactImage(name) }
+        adapter.onIconUrlNeeded = { url -> loadMerchantIcon(url) }
         binding.recyclerView.layoutManager = LinearLayoutManager(requireContext())
         binding.recyclerView.adapter = adapter
         binding.recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
@@ -266,6 +271,29 @@ class AccountHistoryFragment : Fragment() {
         }
     }
 
+    private fun loadMerchantIcon(url: String) {
+        if (!pendingIconUrls.add(url)) return
+        val cached = MerchantIconCache.load(requireContext(), url)
+        if (cached != null) {
+            binding.recyclerView.post { adapter.updateIconUrl(url, cached) }
+            return
+        }
+        viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
+            try {
+                val client = OkHttpClient()
+                val response = client.newCall(Request.Builder().url(url).build()).execute()
+                val bytes = response.body?.bytes() ?: return@launch
+                response.close()
+                val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
+                    ?: return@launch
+                MerchantIconCache.save(requireContext(), url, bitmap)
+                withContext(Dispatchers.Main) { adapter.updateIconUrl(url, bitmap) }
+            } catch (_: Exception) {
+                pendingIconUrls.remove(url)
+            }
+        }
+    }
+
     override fun onDestroyView() {
         (activity as? HomeActivity)?.setRefreshing(false)
         super.onDestroyView()

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

@@ -0,0 +1,24 @@
+package sh.sar.basedbank.util
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import java.io.File
+
+object MerchantIconCache {
+
+    private fun file(context: Context, url: String) =
+        File(context.cacheDir, "micon_${url.replace(Regex("[^A-Za-z0-9]"), "_")}.png")
+
+    fun save(context: Context, url: String, bitmap: Bitmap) {
+        try {
+            file(context, url).outputStream().use {
+                bitmap.compress(Bitmap.CompressFormat.PNG, 90, it)
+            }
+        } catch (_: Exception) {}
+    }
+
+    fun load(context: Context, url: String): Bitmap? = try {
+        BitmapFactory.decodeFile(file(context, url).absolutePath)
+    } catch (_: Exception) { null }
+}