Add functionality to eReceipts to fetch the Transaction information from the database and correctly format and display it on the screen.

app/src/main/java/cy/agorise/bitsybitshareswallet/database/joins/TransferDetailDao.kt

@@ -7,6 +7,9 @@ import androidx.room.Query
 @Dao
 interface TransferDetailDao {
 
+    @Query("SELECT transfers.id, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.source) AS `from`, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.destination) AS `to`, (CASE WHEN destination=:userId THEN 1 ELSE 0 END) AS `direction`, transfers.memo AS `memo`, transfers.timestamp AS `date`, transfers.transfer_amount AS `assetAmount`, assets.precision AS `assetPrecision`, assets.symbol AS `assetSymbol`, assets.issuer as `assetIssuer` FROM transfers INNER JOIN assets WHERE transfers.id=:transferId AND transfers.transfer_asset_id = assets.id")
+    fun get(userId: String, transferId: String): LiveData<TransferDetail>
+
     @Query("SELECT transfers.id, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.source) AS `from`, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.destination) AS `to`, (CASE WHEN destination=:userId THEN 1 ELSE 0 END) AS `direction`, transfers.memo AS `memo`, transfers.timestamp AS `date`, transfers.transfer_amount AS `assetAmount`, assets.precision AS `assetPrecision`, assets.symbol AS `assetSymbol`, assets.issuer as `assetIssuer` FROM transfers INNER JOIN assets WHERE transfers.transfer_asset_id = assets.id")
     fun getAll(userId: String): LiveData<List<TransferDetail>>
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/EReceiptFragment.kt

@@ -1,19 +1,35 @@
 package cy.agorise.bitsybitshareswallet.fragments
 
 import android.os.Bundle
+import android.preference.PreferenceManager
+import android.text.Html
+import android.text.method.LinkMovementMethod
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
 import androidx.navigation.fragment.navArgs
 
 import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.utils.toast
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.viewmodels.EReceiptViewModel
+import kotlinx.android.synthetic.main.fragment_e_receipt.*
+import java.math.RoundingMode
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.text.SimpleDateFormat
+import java.util.*
 
 class EReceiptFragment : Fragment() {
 
     private val args: EReceiptFragmentArgs by navArgs()
 
+    private lateinit var mEReceiptViewModel: EReceiptViewModel
+    private lateinit var mLocale: Locale
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         setHasOptionsMenu(true)
 
@@ -23,7 +39,62 @@ class EReceiptFragment : Fragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        mLocale = resources.configuration.locale
+
+        val userId = PreferenceManager.getDefaultSharedPreferences(context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "") ?: ""
+
         val transferId = args.transferId
-        context?.toast("Transfer ID: $transferId")
+
+        mEReceiptViewModel = ViewModelProviders.of(this).get(EReceiptViewModel::class.java)
+
+        mEReceiptViewModel.get(userId, transferId).observe(this, Observer<TransferDetail> { transferDetail ->
+            bindTransferDetail(transferDetail)
+        })
+    }
+
+    private fun bindTransferDetail(transferDetail: TransferDetail) {
+        vPaymentDirection.setBackgroundColor(resources.getColor(
+            if(transferDetail.direction) R.color.colorReceive else R.color.colorSend
+        ))
+
+        tvFrom.text = transferDetail.from ?: ""
+        tvTo.text = transferDetail.to ?: ""
+
+        // Show the crypto amount correctly formatted
+        val df = DecimalFormat("####."+("#".repeat(transferDetail.assetPrecision)))
+        df.roundingMode = RoundingMode.CEILING
+        df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
+
+        val amount = transferDetail.assetAmount.toDouble() /
+                Math.pow(10.toDouble(), transferDetail.assetPrecision.toDouble())
+        val assetAmount = "${df.format(amount)} ${transferDetail.getUIAssetSymbol()}"
+        tvAmount.text = assetAmount
+
+        // TODO show the equivalent value
+        tvEquivalentValue.text = "-"
+
+        // Memo
+        if (transferDetail.memo != "")
+            tvMemo.text = getString(R.string.template__memo, transferDetail.memo)
+        else
+            tvMemo.visibility = View.GONE
+
+        // Date
+        val dateFormat = SimpleDateFormat("dd MMM HH:mm:ss z", mLocale)
+        tvDate.text = getString(R.string.template__date, dateFormat.format(transferDetail.date * 1000))
+
+        // Transaction #
+        formatTransferTextView(transferDetail.id)
+    }
+
+    /** Formats the transfer TextView to show a link to explore the given transfer
+     * in a BitShares explorer */
+    private fun formatTransferTextView(transferId: String) {
+        val tx = Html.fromHtml(getString(R.string.template__tx,
+            "<a href=\"http://bitshares-explorer.io/#/operations/$transferId\">$transferId</a>"
+        ))
+        tvTransferID.text = tx
+        tvTransferID.movementMethod = LinkMovementMethod.getInstance()
     }
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/TransactionsFragment.kt

@@ -29,7 +29,6 @@ import java.io.File
 import java.util.*
 import java.util.concurrent.TimeUnit
 import kotlin.collections.ArrayList
-import kotlin.math.exp
 
 class TransactionsFragment : Fragment(), FilterOptionsDialog.OnFilterOptionsSelectedListener {
 

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/TransferDetailRepository.kt

@@ -15,6 +15,10 @@ class TransferDetailRepository internal constructor(context: Context) {
         mTransferDetailDao = db!!.transferDetailDao()
     }
 
+    fun get(userId: String, transferId: String): LiveData<TransferDetail> {
+        return mTransferDetailDao.get(userId, transferId)
+    }
+
     fun getAll(userId: String): LiveData<List<TransferDetail>> {
         return mTransferDetailDao.getAll(userId)
     }

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/EReceiptViewModel.kt

@@ -0,0 +1,15 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.repositories.TransferDetailRepository
+
+class EReceiptViewModel(application: Application) : AndroidViewModel(application) {
+    private var mTransferDetailRepository = TransferDetailRepository(application)
+
+    internal fun get(userId: String, transferId: String): LiveData<TransferDetail> {
+        return mTransferDetailRepository.get(userId, transferId)
+    }
+}

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

@@ -23,6 +23,7 @@
         android:background="@android:color/white">
 
         <View
+            android:id="@+id/vPaymentDirection"
             android:layout_width="8dp"
             android:layout_height="0dp"
             android:background="@color/colorReceive"
@@ -176,7 +177,7 @@
             app:layout_constraintTop_toBottomOf="@id/tvMemo"/>
 
         <TextView
-            android:id="@+id/tvTransactionID"
+            android:id="@+id/tvTransferID"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="16dp"

app/src/main/res/values-es/strings.xml

@@ -73,7 +73,9 @@
 
     <!-- eReceipt -->
     <string name="title_e_receipt">Recibo electrónico</string>
-    <string name="template__memo">Memo: %1$d</string>
+    <string name="template__memo">Memo: %1$s</string>
+    <string name="template__date">Fecha: %1$s</string>
+    <string name="template__tx">Tx: %1$s</string>
 
     <!-- Merchants & Tellers -->
     <string name="title_merchants">Comerciantes</string>

app/src/main/res/values/strings.xml

@@ -73,7 +73,10 @@
 
     <!-- eReceipt -->
     <string name="title_e_receipt">eReceipt</string>
-    <string name="template__memo">Memo: %1$d</string>
+    <string name="template__memo">Memo: %1$s</string>
+    <string name="template__date">Date: %1$s</string>
+    <string name="template__tx">Tx: %1$s</string>
+
 
     <!-- Merchants & Tellers -->
     <string name="title_merchants">Merchants</string>