Add Currency Converter API for bankroll rate

app/src/main/java/net/pokeranalytics/android/ui/fragment/BankrollDataFragment.kt

@@ -4,12 +4,10 @@ import android.app.Activity.RESULT_OK
 import android.content.Intent
 import android.os.Bundle
 import android.view.View
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
 import net.pokeranalytics.android.R
+import net.pokeranalytics.android.api.CurrencyConverterApi
 import net.pokeranalytics.android.model.realm.Bankroll
+import net.pokeranalytics.android.model.retrofit.CurrencyConverterValue
 import net.pokeranalytics.android.ui.activity.CurrenciesActivity
 import net.pokeranalytics.android.ui.adapter.RowRepresentableDataSource
 import net.pokeranalytics.android.ui.adapter.StaticRowRepresentableDataSource
@@ -22,6 +20,8 @@ import net.pokeranalytics.android.ui.view.rowrepresentable.SimpleRow
 import net.pokeranalytics.android.util.NULL_TEXT
 import net.pokeranalytics.android.util.Preferences
 import net.pokeranalytics.android.util.extensions.round
+import retrofit2.Call
+import retrofit2.Response
 import java.util.*
 
 /**
@@ -42,6 +42,7 @@ class BankrollDataFragment : EditableDataFragment(), StaticRowRepresentableDataS
 	private lateinit var defaultCurrency: Currency
 	private val rows = ArrayList<RowRepresentable>()
 	private var isRefreshingRate = false
+	private var lastRefreshRateCall = 0L
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
@@ -111,25 +112,20 @@ class BankrollDataFragment : EditableDataFragment(), StaticRowRepresentableDataS
 	override fun onRowSelected(position: Int, row: RowRepresentable, fromAction: Boolean) {
 		when (row) {
 			BankrollRow.CURRENCY -> CurrenciesActivity.newInstanceForResult(this@BankrollDataFragment, BankrollDataFragment.REQUEST_CODE_CURRENCY)
-			BankrollRow.REFRESH_RATE -> {
+			BankrollRow.REFRESH_RATE -> refreshRate()
-				isRefreshingRate = true
-
-				//TODO: Call web-service to get the currency rate
-				GlobalScope.launch(Dispatchers.Main) {
-					delay(1500)
-					isRefreshingRate = false
-					rowRepresentableAdapter.refreshRow(BankrollRow.REFRESH_RATE)
-				}
-				rowRepresentableAdapter.refreshRow(BankrollRow.REFRESH_RATE)
-			}
 			else -> super.onRowSelected(position, row, fromAction)
 		}
 	}
 
 	override fun onRowValueChanged(value: Any?, row: RowRepresentable) {
 		super.onRowValueChanged(value, row)
-		updateAdapterUI()
 
+		// Clear the value when the currency has been updated
+		if (row == BankrollRow.CURRENCY) {
+			lastRefreshRateCall = 0
+		}
+
+		updateAdapterUI()
 	}
 
 	/**
@@ -157,8 +153,6 @@ class BankrollDataFragment : EditableDataFragment(), StaticRowRepresentableDataS
 		rows.add(CustomizableRowRepresentable(customViewType = RowViewType.HEADER_TITLE, resId = R.string.currency))
 		rows.add(BankrollRow.CURRENCY)
 
-		val defaultCurrency = Currency.getInstance(Preferences.getCurrencyLocale(this.parentActivity))
-
 		var differentCurrency = false
 		bankroll.currency?.let { bankrollCurrency ->
 			differentCurrency = bankrollCurrency.code != defaultCurrency.currencyCode
@@ -186,5 +180,40 @@ class BankrollDataFragment : EditableDataFragment(), StaticRowRepresentableDataS
 		}
 	}
 
+	/**
+	 * Refresh the rate with the Currency Converter API
+	 */
+	private fun refreshRate() {
+
+		// Check if the last call was older than 10 seconds
+		if (System.currentTimeMillis() - lastRefreshRateCall < 10 * 1000 || isRefreshingRate) {
+			return
+		}
+		lastRefreshRateCall = System.currentTimeMillis()
+
+		val currenciesConverterValue = "${defaultCurrency.currencyCode}_${bankroll?.currency?.code}"
+		val call = CurrencyConverterApi.getApi(requireContext())?.convert(currenciesConverterValue)
+		call?.enqueue(object : retrofit2.Callback<Map<String, CurrencyConverterValue>> {
+
+			override fun onResponse(call: Call<Map<String, CurrencyConverterValue>>, response: Response<Map<String, CurrencyConverterValue>>) {
+				response.body()?.let {
+					it[currenciesConverterValue]?.value?.let {rate ->
+						onRowValueChanged(rate.toString(), BankrollRow.RATE)
+					}
+				}
+
+				isRefreshingRate = false
+				rowRepresentableAdapter.refreshRow(BankrollRow.REFRESH_RATE)
+			}
+
+			override fun onFailure(call: Call<Map<String, CurrencyConverterValue>>, t: Throwable) {
+				isRefreshingRate = false
+				rowRepresentableAdapter.refreshRow(BankrollRow.REFRESH_RATE)
+			}
+		})
+
+		isRefreshingRate = true
+		rowRepresentableAdapter.refreshRow(BankrollRow.REFRESH_RATE)
+	}
 
 }