* UI: added deck export to MTG Arena format (#4243);

Mage/src/main/java/mage/cards/decks/DeckFormats.java

@@ -1,7 +1,8 @@
 package mage.cards.decks;
 
 import mage.cards.decks.exporter.DeckExporter;
-import mage.cards.decks.exporter.MtgoDeckExporter;
+import mage.cards.decks.exporter.MtgArenaDeckExporter;
+import mage.cards.decks.exporter.MtgOnlineDeckExporter;
 import mage.cards.decks.exporter.XmageDeckExporter;
 
 import javax.swing.filechooser.FileFilter;
@@ -14,7 +15,8 @@ import java.util.Optional;
 public enum DeckFormats {
 
     XMAGE(new XmageDeckExporter()),
-    MTGO(new MtgoDeckExporter());
+    MTG_ONLINE(new MtgOnlineDeckExporter()),
+    MTG_ARENA(new MtgArenaDeckExporter());
 
     private final DeckExporter exporter;
 

Mage/src/main/java/mage/cards/decks/DeckFormatsTest.java

@@ -35,10 +35,10 @@ public class DeckFormatsTest {
         // 3. double ext
         String fileName = "C:\\xmage\\deck"
                 + "." + DeckFormats.XMAGE.getExporter().getDefaultFileExt()
-                + "." + DeckFormats.MTGO.getExporter().getDefaultFileExt();
-        Assert.assertEquals("Must find mtgo", DeckFormats.getFormatForExtension(fileName).get(), DeckFormats.MTGO);
+                + "." + DeckFormats.MTG_ONLINE.getExporter().getDefaultFileExt();
+        Assert.assertEquals("Must find mtgo", DeckFormats.getFormatForExtension(fileName).get(), DeckFormats.MTG_ONLINE);
         fileName = "C:\\xmage\\deck"
-                + "." + DeckFormats.MTGO.getExporter().getDefaultFileExt()
+                + "." + DeckFormats.MTG_ONLINE.getExporter().getDefaultFileExt()
                 + "." + DeckFormats.XMAGE.getExporter().getDefaultFileExt();
         Assert.assertEquals("Must find xmage", DeckFormats.getFormatForExtension(fileName).get(), DeckFormats.XMAGE);
     }

Mage/src/main/java/mage/cards/decks/exporter/MtgArenaDeckExporter.java

@@ -0,0 +1,75 @@
+package mage.cards.decks.exporter;
+
+import mage.cards.decks.DeckCardInfo;
+import mage.cards.decks.DeckCardLists;
+import mage.cards.decks.DeckFileFilter;
+
+import javax.swing.filechooser.FileFilter;
+import java.io.PrintWriter;
+import java.util.*;
+
+/**
+ * @author JayDi85
+ */
+public class MtgArenaDeckExporter extends DeckExporter {
+
+    private final String ext = "mtga";
+    private final String description = "MTG Arena's deck format (*.mtga)";
+    private final FileFilter fileFilter = new DeckFileFilter(ext, description);
+
+    @Override
+    public void writeDeck(PrintWriter out, DeckCardLists deck) {
+        Map<String, Integer> amount = new HashMap<>();
+        List<String> deckMain = prepareCardsList(deck.getCards(), amount, "M@");
+        List<String> deckSideboard = prepareCardsList(deck.getSideboard(), amount, "S@");
+
+        printCards(out, deckMain, amount, "M@");
+        if (deckSideboard.size() > 0) {
+            out.println();
+            printCards(out, deckSideboard, amount, "S@");
+        }
+    }
+
+    private List<String> prepareCardsList(List<DeckCardInfo> sourceCards, Map<String, Integer> amount, String prefix) {
+        List<String> res = new ArrayList<>();
+        for (DeckCardInfo card : sourceCards) {
+            String name = card.getCardName() + " (" + card.getSetCode().toUpperCase(Locale.ENGLISH) + ") " + card.getCardNum();
+            String code = prefix + name;
+            int curAmount = amount.getOrDefault(code, 0);
+            if (curAmount == 0) {
+                res.add(name);
+            }
+            amount.put(code, curAmount + card.getQuantity());
+        }
+        return res;
+    }
+
+    private void printCards(PrintWriter out, List<String> deck, Map<String, Integer> amount, String prefix) {
+        if (deck.size() == 0) return;
+
+        boolean firstCard = true;
+        for (String name : deck) {
+            if (!firstCard) out.println();
+            out.print(amount.get(prefix + name));
+            out.print(' ');
+            out.print(name);
+            firstCard = false;
+        }
+        out.println();
+    }
+
+    @Override
+    public FileFilter getFileFilter() {
+        return fileFilter;
+    }
+
+    @Override
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public String getDefaultFileExt() {
+        return ext;
+    }
+}

Mage/src/main/java/mage/cards/decks/exporter/MtgArenaDeckExporterTest.java

@@ -0,0 +1,38 @@
+package mage.cards.decks.exporter;
+
+import mage.cards.decks.DeckCardInfo;
+import mage.cards.decks.DeckCardLists;
+import org.junit.Test;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author JayDi85
+ */
+public class MtgArenaDeckExporterTest {
+
+    @Test
+    public void writeDeck() throws IOException {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        DeckCardLists deck = new DeckCardLists();
+        deck.getCards().add(new DeckCardInfo("Forest", "1", "RNA", 2));
+        deck.getCards().add(new DeckCardInfo("Plains", "2", "RNA", 3));
+        deck.getCards().add(new DeckCardInfo("Plains", "2", "RNA", 5)); // must combine
+        deck.getCards().add(new DeckCardInfo("Mountain", "3", "RNA", 1));
+        deck.getSideboard().add(new DeckCardInfo("Island", "1", "RNA", 2));
+        deck.getSideboard().add(new DeckCardInfo("Island", "1", "RNA", 5)); // must combine
+        deck.getSideboard().add(new DeckCardInfo("Mountain", "2", "RNA", 3));
+        DeckExporter exporter = new MtgArenaDeckExporter();
+        exporter.writeDeck(baos, deck);
+        assertEquals("2 Forest (RNA) 1" + System.lineSeparator() +
+                        "8 Plains (RNA) 2" + System.lineSeparator() +
+                        "1 Mountain (RNA) 3" + System.lineSeparator() +
+                        System.lineSeparator() +
+                        "7 Island (RNA) 1" + System.lineSeparator() +
+                        "3 Mountain (RNA) 2" + System.lineSeparator(),
+                baos.toString());
+    }
+}

Mage/src/main/java/mage/cards/decks/exporter/MtgOnlineDeckExporter.java

@@ -11,10 +11,10 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-public class MtgoDeckExporter extends DeckExporter {
+public class MtgOnlineDeckExporter extends DeckExporter {
 
     private final String ext = "dek";
-    private final String description = "MTGO's deck format (*.dek)";
+    private final String description = "MTG Online's deck format (*.dek)";
     private final FileFilter fileFilter = new DeckFileFilter(ext, description);
 
     @Override