From ef5125fb0dcef4c3c7b06a011658b611d1836dd8 Mon Sep 17 00:00:00 2001
From: Piotr Dec <piotr_dec@msn.com>
Date: Thu, 23 May 2024 18:54:53 +0200
Subject: [PATCH] feat: NBP service outline

---
 .../eu/ztsh/wymiana/service/NbpService.java   | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/main/java/eu/ztsh/wymiana/service/NbpService.java

diff --git a/src/main/java/eu/ztsh/wymiana/service/NbpService.java b/src/main/java/eu/ztsh/wymiana/service/NbpService.java
new file mode 100644
index 0000000..a838d38
--- /dev/null
+++ b/src/main/java/eu/ztsh/wymiana/service/NbpService.java
@@ -0,0 +1,44 @@
+package eu.ztsh.wymiana.service;
+
+import eu.ztsh.wymiana.model.Rates;
+import org.assertj.core.util.VisibleForTesting;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDate;
+
+/**
+ * NBP exchange rates service
+ */
+@Service
+public class NbpService {
+
+    public double getSellRate(String currency) {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    public double getBuyRate(String currency) {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    /**
+     * Calculates date for data fetch.
+     * <p>
+     * Usually this would be today, but as rates are set only Mon-Fri, during weekends it is needed to fetch last friday rates.
+     *
+     * @return date for data fetch
+     */
+    @VisibleForTesting
+    LocalDate getFetchDate() {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    @VisibleForTesting
+    Rates fetchData(String date) {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    private record RatesCache(LocalDate date, double buy, double sell) {
+
+    }
+
+}