1 files changed, 48 insertions, 0 deletions
diff --git a/src/utils.js b/src/utils.js
index e69de29..05e519d 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -0,0 +1,48 @@
+function parseYdk(ydkContent) {
+    const lines = ydkContent.split('\n');
+    const deck = {
+        main: [],
+        extra: [],
+        side: [],
+    };
+    let currentSection = null;
+    for (const line of lines) {
+        const trimmedLine = line.trim();
+        if (!trimmedLine || trimmedLine.startsWith('#') && !['#main', '#extra'].includes(trimmedLine)) {
+            continue;
+        }
+        if (trimmedLine === '#main') {
+            currentSection = 'main';
+        } else if (trimmedLine === '#extra') {
+            currentSection = 'extra';
+        } else if (trimmedLine === '!side') {
+            currentSection = 'side';
+        } else if (currentSection) {
+            const cardId = parseInt(trimmedLine, 10);
+            if (!isNaN(cardId)) {
+                deck[currentSection].push(String(cardId));
+            }
+        }
+    }
+    return deck;
+}
+
+function genYdk(deck) {
+    let ydkContent = '#created by ygodeck.mistivia.com\n';
+
+    ydkContent += '#main\n';
+    ydkContent += deck.main.join('\n') + '\n';
+
+    ydkContent += '#extra\n';
+    ydkContent += deck.extra.join('\n') + '\n';
+
+    ydkContent += '!side\n';
+    ydkContent += deck.side.join('\n') + '\n';
+
+    return ydkContent;
+}
+
+export {
+    parseYdk,
+    genYdk,
+};