add support to view previous transfer recipts

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

@@ -0,0 +1,108 @@
+package sh.sar.basedbank.ui.home
+
+import android.graphics.Color
+import android.graphics.drawable.GradientDrawable
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import sh.sar.basedbank.databinding.ItemDateHeaderBinding
+import sh.sar.basedbank.databinding.ItemTransactionBinding
+import sh.sar.basedbank.util.ReceiptStore
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class ActivitiesAdapter(
+    private val onItemClick: (ReceiptStore.Entry) -> Unit
+) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+
+    private sealed class Item {
+        data class DateHeader(val label: String) : Item()
+        data class ReceiptItem(val entry: ReceiptStore.Entry) : Item()
+    }
+
+    private val displayItems = mutableListOf<Item>()
+
+    fun setEntries(entries: List<ReceiptStore.Entry>) {
+        displayItems.clear()
+        var lastDateKey = ""
+        for (entry in entries) {
+            val dateKey = SimpleDateFormat("yyyy-MM-dd", Locale.US).format(Date(entry.savedAt))
+            if (dateKey != lastDateKey) {
+                displayItems.add(Item.DateHeader(formatDateHeader(entry.savedAt)))
+                lastDateKey = dateKey
+            }
+            displayItems.add(Item.ReceiptItem(entry))
+        }
+        notifyDataSetChanged()
+    }
+
+    override fun getItemCount() = displayItems.size
+
+    override fun getItemViewType(position: Int) =
+        if (displayItems[position] is Item.DateHeader) TYPE_DATE_HEADER else TYPE_RECEIPT
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        return if (viewType == TYPE_DATE_HEADER)
+            DateHeaderVH(ItemDateHeaderBinding.inflate(inflater, parent, false))
+        else
+            ReceiptVH(ItemTransactionBinding.inflate(inflater, parent, false))
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        when (holder) {
+            is DateHeaderVH -> holder.bind((displayItems[position] as Item.DateHeader).label)
+            is ReceiptVH    -> holder.bind((displayItems[position] as Item.ReceiptItem).entry)
+        }
+    }
+
+    inner class DateHeaderVH(private val b: ItemDateHeaderBinding) :
+        RecyclerView.ViewHolder(b.root) {
+        fun bind(label: String) { b.tvDateHeader.text = label }
+    }
+
+    inner class ReceiptVH(private val b: ItemTransactionBinding) :
+        RecyclerView.ViewHolder(b.root) {
+        fun bind(entry: ReceiptStore.Entry) {
+            val d = entry.data
+            val colorHex = d.fromColorHex.takeIf { it.isNotBlank() } ?: "#607D8B"
+            val initial = d.toLabel.firstOrNull()?.uppercaseChar()?.toString() ?: "?"
+
+            b.fvAvatar.background = GradientDrawable().apply {
+                shape = GradientDrawable.OVAL
+                setColor(try { Color.parseColor(colorHex) } catch (_: Exception) { Color.GRAY })
+            }
+            b.tvInitial.visibility = android.view.View.VISIBLE
+            b.tvInitial.text = initial
+
+            b.tvCounterparty.text = d.toLabel
+            b.tvCounterparty.visibility = android.view.View.VISIBLE
+            b.tvDescription.text = buildString {
+                append(d.fromLabel)
+                if (d.toBank.isNotBlank()) append(" · ${d.toBank}")
+            }
+            b.tvDate.text = formatTime(entry.savedAt)
+
+            b.tvAmount.text = "- ${d.currency} ${d.amount}"
+            b.tvAmount.setTextColor(Color.parseColor("#FF7043"))
+
+            b.root.setOnClickListener { onItemClick(entry) }
+        }
+    }
+
+    private fun formatDateHeader(millis: Long): String {
+        val sdf = SimpleDateFormat("EEEE, d MMMM yyyy", Locale.US)
+        return sdf.format(Date(millis))
+    }
+
+    private fun formatTime(millis: Long): String {
+        val sdf = SimpleDateFormat("HH:mm", Locale.US)
+        return sdf.format(Date(millis))
+    }
+
+    companion object {
+        private const val TYPE_DATE_HEADER = 0
+        private const val TYPE_RECEIPT     = 1
+    }
+}

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

@@ -0,0 +1,95 @@
+package sh.sar.basedbank.ui.home
+
+import android.content.Context
+import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.LinearLayoutManager
+import sh.sar.basedbank.R
+import sh.sar.basedbank.databinding.FragmentActivitiesBinding
+import sh.sar.basedbank.util.ReceiptStore
+
+class ActivitiesFragment : Fragment() {
+
+    private var _binding: FragmentActivitiesBinding? = null
+    private val binding get() = _binding!!
+
+    private lateinit var adapter: ActivitiesAdapter
+    private val allEntries = mutableListOf<ReceiptStore.Entry>()
+    private var searchQuery = ""
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+        _binding = FragmentActivitiesBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        adapter = ActivitiesAdapter { entry ->
+            (activity as? HomeActivity)?.showWithBackStack(
+                TransferReceiptFragment.newInstance(entry.data, null)
+            )
+        }
+        binding.recyclerView.layoutManager = LinearLayoutManager(requireContext())
+        binding.recyclerView.adapter = adapter
+
+        val bottomPaddingBase = (16 * resources.displayMetrics.density).toInt()
+        ViewCompat.setOnApplyWindowInsetsListener(binding.recyclerView) { v, insets ->
+            val isBottomNav = requireContext()
+                .getSharedPreferences("prefs", Context.MODE_PRIVATE)
+                .getBoolean("bottom_nav", false)
+            val navBar = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            val extraBottom = if (isBottomNav) 0 else navBar.bottom
+            v.setPadding(v.paddingLeft, v.paddingTop, v.paddingRight, bottomPaddingBase + extraBottom)
+            insets
+        }
+
+        binding.etSearch.addTextChangedListener(object : TextWatcher {
+            override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) = Unit
+            override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) = Unit
+            override fun afterTextChanged(s: Editable?) {
+                searchQuery = s?.toString()?.trim() ?: ""
+                filterAndDisplay()
+            }
+        })
+
+        loadEntries()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        requireActivity().title = getString(R.string.nav_activities)
+        // Reload in case a new receipt was added while we were away
+        loadEntries()
+    }
+
+    private fun loadEntries() {
+        allEntries.clear()
+        allEntries.addAll(ReceiptStore.loadAll(requireContext()))
+        filterAndDisplay()
+    }
+
+    private fun filterAndDisplay() {
+        val filtered = if (searchQuery.isBlank()) allEntries
+        else allEntries.filter { entry ->
+            entry.data.toLabel.contains(searchQuery, ignoreCase = true) ||
+                entry.data.fromLabel.contains(searchQuery, ignoreCase = true) ||
+                entry.data.toAccount.contains(searchQuery, ignoreCase = true) ||
+                entry.data.toBank.contains(searchQuery, ignoreCase = true) ||
+                entry.data.mibReferenceNo.contains(searchQuery, ignoreCase = true) ||
+                entry.data.bmlReference.contains(searchQuery, ignoreCase = true)
+        }
+        adapter.setEntries(filtered)
+        binding.emptyView.visibility = if (filtered.isEmpty()) View.VISIBLE else View.GONE
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}

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

@@ -116,6 +116,7 @@ class HomeActivity : AppCompatActivity() {
                 R.id.nav_contacts         -> ContactsFragment()
                 R.id.nav_transfer         -> TransferFragment()
                 R.id.nav_more             -> MoreFragment()
+                R.id.nav_activities       -> ActivitiesFragment()
                 R.id.nav_transfer_history -> TransferHistoryFragment()
                 R.id.nav_finances         -> FinancingFragment()
                 R.id.nav_otp              -> OtpFragment()
@@ -276,6 +277,7 @@ class HomeActivity : AppCompatActivity() {
             R.id.nav_accounts -> AccountsFragment()
             R.id.nav_contacts -> ContactsFragment()
             R.id.nav_transfer -> TransferFragment()
+            R.id.nav_activities -> ActivitiesFragment()
             R.id.nav_transfer_history -> TransferHistoryFragment()
             R.id.nav_finances -> FinancingFragment()
             R.id.nav_otp -> OtpFragment()

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

@@ -56,6 +56,7 @@ import sh.sar.basedbank.util.AccountInputParser
 import sh.sar.basedbank.util.PaymvQrParser
 import sh.sar.basedbank.util.RecentPick
 import sh.sar.basedbank.util.RecentsCache
+import sh.sar.basedbank.util.ReceiptStore
 import sh.sar.basedbank.util.Totp
 
 class TransferFragment : Fragment() {
@@ -628,6 +629,7 @@ class TransferFragment : Fragment() {
                 binding.btnTransfer.isEnabled = true
                 (activity as? HomeActivity)?.setRefreshing(false)
                 if (ok && receipt != null) {
+                    ReceiptStore.save(requireContext(), receipt)
                     clearForm()
                     val activity = requireActivity() as HomeActivity
                     activity.refreshBalances(src)
@@ -755,7 +757,7 @@ class TransferFragment : Fragment() {
             )
             if (result.success) {
                 val receipt = TransferReceiptData(
-                    isMib = true,
+                    bank = "MIB",
                     amount = "%.2f".format(amount.toDoubleOrNull() ?: 0.0),
                     currency = currency,
                     fromLabel = src.accountBriefName,
@@ -839,7 +841,7 @@ class TransferFragment : Fragment() {
             val result = bmlFlow.confirmTransfer(sess, debitAccount, creditAccount, amount, transferType, currency, confirmOtp, remarks, bank)
             if (result.success) {
                 val receipt = TransferReceiptData(
-                    isMib = false,
+                    bank = "BML",
                     amount = "%.2f".format(amount),
                     currency = currency,
                     fromLabel = src.accountBriefName,

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

@@ -1,7 +1,7 @@
 package sh.sar.basedbank.ui.home
 
 data class TransferReceiptData(
-    val isMib: Boolean,
+    val bank: String, // "MIB", "BML", etc.
     val amount: String,
     val currency: String,
     val fromLabel: String,

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

@@ -46,7 +46,7 @@ class TransferReceiptFragment : Fragment() {
     private val receiptCard get() = _receiptCard!!
 
     companion object {
-        private const val ARG_IS_MIB              = "is_mib"
+        private const val ARG_BANK                 = "bank"
         private const val ARG_AMOUNT              = "amount"
         private const val ARG_CURRENCY            = "currency"
         private const val ARG_FROM_LABEL          = "from_label"
@@ -69,7 +69,7 @@ class TransferReceiptFragment : Fragment() {
         fun newInstance(data: TransferReceiptData, toAvatarBitmap: Bitmap?) = TransferReceiptFragment().apply {
             pendingToAvatarBitmap = toAvatarBitmap
             arguments = Bundle().apply {
-                putBoolean(ARG_IS_MIB,        data.isMib)
+                putString(ARG_BANK,           data.bank)
                 putString(ARG_AMOUNT,         data.amount)
                 putString(ARG_CURRENCY,       data.currency)
                 putString(ARG_FROM_LABEL,         data.fromLabel)
@@ -90,8 +90,8 @@ class TransferReceiptFragment : Fragment() {
     }
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
-        val isMib = arguments?.getBoolean(ARG_IS_MIB, true) ?: true
+        val bank = arguments?.getString(ARG_BANK, "MIB") ?: "MIB"
-        return if (isMib) {
+        return if (bank == "MIB") {
             val binding = FragmentReceiptMibBinding.inflate(inflater, container, false)
             bindMib(binding)
             _receiptCard = binding.receiptCard

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

@@ -0,0 +1,83 @@
+package sh.sar.basedbank.util
+
+import android.content.Context
+import org.json.JSONArray
+import org.json.JSONObject
+import sh.sar.basedbank.ui.home.TransferReceiptData
+import java.io.File
+
+/** Persistent (non-cache) store for completed transfer receipts shown in Activities. */
+object ReceiptStore {
+
+    private const val FILE_NAME = "activities.json"
+
+    data class Entry(val data: TransferReceiptData, val savedAt: Long)
+
+    fun save(context: Context, receipt: TransferReceiptData) {
+        val existing = loadAll(context).toMutableList()
+        existing.add(0, Entry(receipt, System.currentTimeMillis()))
+        writeAll(context, existing)
+    }
+
+    fun loadAll(context: Context): List<Entry> {
+        val file = File(context.filesDir, FILE_NAME)
+        if (!file.exists()) return emptyList()
+        return try {
+            val arr = JSONArray(CacheEncryption.decrypt(file.readText()))
+            (0 until arr.length()).map { i ->
+                val o = arr.getJSONObject(i)
+                Entry(
+                    data = TransferReceiptData(
+                        bank                 = o.optString("bank", "MIB"),
+                        amount               = o.optString("amount"),
+                        currency             = o.optString("currency"),
+                        fromLabel            = o.optString("fromLabel"),
+                        fromColorHex         = o.optString("fromColorHex"),
+                        fromProfileImageHash = o.optString("fromProfileImageHash").takeIf { it.isNotBlank() },
+                        toLabel              = o.optString("toLabel"),
+                        toAccount            = o.optString("toAccount"),
+                        toBank               = o.optString("toBank"),
+                        remarks              = o.optString("remarks"),
+                        mibReferenceNo       = o.optString("mibReferenceNo"),
+                        mibTransactionDate   = o.optString("mibTransactionDate"),
+                        bmlFromName          = o.optString("bmlFromName"),
+                        bmlReference         = o.optString("bmlReference"),
+                        bmlTimestamp         = o.optString("bmlTimestamp"),
+                        bmlMessage           = o.optString("bmlMessage")
+                    ),
+                    savedAt = o.optLong("savedAt", 0L)
+                )
+            }
+        } catch (_: Exception) { emptyList() }
+    }
+
+    fun clearAll(context: Context) {
+        File(context.filesDir, FILE_NAME).delete()
+    }
+
+    private fun writeAll(context: Context, items: List<Entry>) {
+        try {
+            val arr = JSONArray()
+            for ((d, ts) in items) arr.put(JSONObject().apply {
+                put("bank",                  d.bank)
+                put("amount",                d.amount)
+                put("currency",              d.currency)
+                put("fromLabel",             d.fromLabel)
+                put("fromColorHex",          d.fromColorHex)
+                put("fromProfileImageHash",  d.fromProfileImageHash ?: "")
+                put("toLabel",               d.toLabel)
+                put("toAccount",             d.toAccount)
+                put("toBank",                d.toBank)
+                put("remarks",               d.remarks)
+                put("mibReferenceNo",        d.mibReferenceNo)
+                put("mibTransactionDate",    d.mibTransactionDate)
+                put("bmlFromName",           d.bmlFromName)
+                put("bmlReference",          d.bmlReference)
+                put("bmlTimestamp",          d.bmlTimestamp)
+                put("bmlMessage",            d.bmlMessage)
+                put("savedAt",               ts)
+            })
+            File(context.filesDir, FILE_NAME).writeText(CacheEncryption.encrypt(arr.toString()))
+        } catch (_: Exception) {}
+    }
+}

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

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="?attr/colorSurface">
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="12dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="4dp"
+        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+        app:startIconDrawable="@android:drawable/ic_menu_search"
+        app:boxCornerRadiusTopStart="24dp"
+        app:boxCornerRadiusTopEnd="24dp"
+        app:boxCornerRadiusBottomStart="24dp"
+        app:boxCornerRadiusBottomEnd="24dp">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etSearch"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Search"
+            android:inputType="text"
+            android:maxLines="1"
+            android:imeOptions="actionSearch" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:paddingTop="4dp"
+            android:paddingBottom="16dp"
+            android:clipToPadding="false" />
+
+        <TextView
+            android:id="@+id/emptyView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="No activities yet"
+            android:textAppearance="?attr/textAppearanceBodyMedium"
+            android:textColor="?attr/colorOnSurfaceVariant"
+            android:visibility="gone" />
+
+    </FrameLayout>
+
+</LinearLayout>