From 3121caf8f74d62f4e5223ed7b7d7c0a9dbfb7fd8 Mon Sep 17 00:00:00 2001
From: Piotr Dec <piotr_dec@msn.com>
Date: Wed, 22 May 2024 19:13:43 +0200
Subject: [PATCH] feat: POJO mappers

---
 .../eu/ztsh/wymiana/util/CurrencyMapper.java  | 24 ++++++++++++++++
 .../java/eu/ztsh/wymiana/util/UserMapper.java | 16 +++++++++++
 .../eu/ztsh/wymiana/util/UserMapperTest.java  | 28 +++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100644 src/main/java/eu/ztsh/wymiana/util/CurrencyMapper.java
 create mode 100644 src/main/java/eu/ztsh/wymiana/util/UserMapper.java
 create mode 100644 src/test/java/eu/ztsh/wymiana/util/UserMapperTest.java

diff --git a/src/main/java/eu/ztsh/wymiana/util/CurrencyMapper.java b/src/main/java/eu/ztsh/wymiana/util/CurrencyMapper.java
new file mode 100644
index 0000000..7542187
--- /dev/null
+++ b/src/main/java/eu/ztsh/wymiana/util/CurrencyMapper.java
@@ -0,0 +1,24 @@
+package eu.ztsh.wymiana.util;
+
+import eu.ztsh.wymiana.data.entity.CurrencyEntity;
+import eu.ztsh.wymiana.model.Currency;
+
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class CurrencyMapper {
+
+    public static Currency entityToPojo(CurrencyEntity entity) {
+        return new Currency(entity.getSymbol(), entity.getAmount());
+    }
+
+    public static Map<String, Currency> entitiesToPojoMap(List<CurrencyEntity> values) {
+        return values.stream().map(CurrencyMapper::entityToPojo)
+            .collect(Collectors.toMap(Currency::symbol, pojo -> pojo));
+    }
+
+    private CurrencyMapper() {
+    }
+
+}
diff --git a/src/main/java/eu/ztsh/wymiana/util/UserMapper.java b/src/main/java/eu/ztsh/wymiana/util/UserMapper.java
new file mode 100644
index 0000000..ea744f4
--- /dev/null
+++ b/src/main/java/eu/ztsh/wymiana/util/UserMapper.java
@@ -0,0 +1,16 @@
+package eu.ztsh.wymiana.util;
+
+import eu.ztsh.wymiana.data.entity.UserEntity;
+import eu.ztsh.wymiana.model.User;
+
+public class UserMapper {
+
+    public static User entityToPojo(UserEntity entity) {
+        return new User(entity.getName(), entity.getSurname(), entity.getPesel(),
+            CurrencyMapper.entitiesToPojoMap(entity.getCurrencies()));
+    }
+
+    private UserMapper() {
+    }
+
+}
diff --git a/src/test/java/eu/ztsh/wymiana/util/UserMapperTest.java b/src/test/java/eu/ztsh/wymiana/util/UserMapperTest.java
new file mode 100644
index 0000000..7b97107
--- /dev/null
+++ b/src/test/java/eu/ztsh/wymiana/util/UserMapperTest.java
@@ -0,0 +1,28 @@
+package eu.ztsh.wymiana.util;
+
+import eu.ztsh.wymiana.EntityCreator;
+import eu.ztsh.wymiana.model.Currency;
+import eu.ztsh.wymiana.model.User;
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class UserMapperTest {
+
+    @Test
+    void entityToPojoTest() {
+        var entity = EntityCreator.user().build();
+        var expected = new User(
+            EntityCreator.Constants.NAME,
+            EntityCreator.Constants.SURNAME,
+            EntityCreator.Constants.PESEL,
+            Map.of("PLN", new Currency("PLN", EntityCreator.Constants.PLN))
+        );
+        assertThat(UserMapper.entityToPojo(entity))
+            .usingRecursiveComparison()
+            .isEqualTo(expected);
+    }
+
+}