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Diffstat (limited to 'merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt')
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt48
1 files changed, 48 insertions, 0 deletions
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt
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+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt
@@ -0,0 +1,48 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import org.json.JSONObject
+
+data class Amount(val currency: String, val amount: String) {
+ @Suppress("unused")
+ fun isZero(): Boolean {
+ return amount.toDouble() == 0.0
+ }
+
+ companion object {
+ private const val FRACTIONAL_BASE = 1e8
+
+ @Suppress("unused")
+ fun fromJson(jsonAmount: JSONObject): Amount {
+ val amountCurrency = jsonAmount.getString("currency")
+ val amountValue = jsonAmount.getString("value")
+ val amountFraction = jsonAmount.getString("fraction")
+ val amountIntValue = Integer.parseInt(amountValue)
+ val amountIntFraction = Integer.parseInt(amountFraction)
+ return Amount(
+ amountCurrency,
+ (amountIntValue + amountIntFraction / FRACTIONAL_BASE).toString()
+ )
+ }
+
+ fun fromString(strAmount: String): Amount {
+ val components = strAmount.split(":")
+ return Amount(components[0], components[1])
+ }
+ }
+}