Populate amt and memo when scanning QR

app/src/main/java/cash/z/ecc/android/ui/scan/ScanFragment.kt

@@ -1,5 +1,6 @@
 package cash.z.ecc.android.ui.scan
 
+import android.net.UrlQuerySanitizer
 import android.os.Bundle
 import android.util.Log
 import android.view.LayoutInflater
@@ -16,14 +17,14 @@ import androidx.window.layout.WindowMetricsCalculator
 import cash.z.ecc.android.R
 import cash.z.ecc.android.databinding.FragmentScanBinding
 import cash.z.ecc.android.ext.onClickNavBack
+import cash.z.ecc.android.sdk.ext.convertZecToZatoshi
+import cash.z.ecc.android.sdk.ext.safelyConvertToBigDecimal
 import cash.z.ecc.android.ui.base.BaseFragment
 import cash.z.ecc.android.ui.send.SendViewModel
 import kotlinx.coroutines.launch
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 import kotlin.math.abs
-import kotlin.math.max
-import kotlin.math.min
 
 
 class ScanFragment : BaseFragment<FragmentScanBinding>() {
@@ -322,15 +323,28 @@ class ScanFragment : BaseFragment<FragmentScanBinding>() {
 
     private fun onQrScanned(qrContent: String, image: ImageProxy) {
         resumedScope.launch {
-            val parsed = viewModel.parse(qrContent)
+            val address = viewModel.parse(qrContent)
-            if (parsed == null) {
+            val sanitizer = UrlQuerySanitizer(qrContent)
+            val amt = sanitizer.getValue("amt")
+            val memo = sanitizer.getValue("memo")
+
+            /*
+            Log.d(TAG, "qrContent: $qrContent")
+            Log.d(TAG, "address: $address")
+            Log.d(TAG, "amt: $amt")
+            Log.d(TAG, "memo: $memo")
+            */
+
+            if (address == null) {
                 val network = viewModel.networkName
                 _fragmentCameraBinding?.textScanError?.text =
                     getString(R.string.scan_invalid_address, network, qrContent)
                 image.close()
             } else { /* continue scanning*/
                 _fragmentCameraBinding?.textScanError?.text = ""
-                sendViewModel.toAddress = parsed
+                sendViewModel.toAddress = address
+                sendViewModel.zatoshiAmount = amt.safelyConvertToBigDecimal().convertZecToZatoshi()
+                sendViewModel.memo = memo
                 mainActivity?.safeNavigate(R.id.action_nav_scan_to_nav_send)
             }
         }