impl a EmbedDescriptionBuilder

src/main/java/cc/fascinated/bat/common/EmbedDescriptionBuilder.java

@@ -0,0 +1,40 @@
+package cc.fascinated.bat.common;
+
+import lombok.NonNull;
+
+/**
+ * @author Fascinated (fascinated7)
+ */
+public class EmbedDescriptionBuilder {
+    /**
+     * Where the description is stored
+     */
+    private final StringBuilder builder = new StringBuilder();
+
+    public EmbedDescriptionBuilder(String title) {
+        builder.append("**").append(title).append("**").append("\n");
+    }
+
+    @NonNull
+    public EmbedDescriptionBuilder appendLine(@NonNull String line, boolean arrow) {
+        builder.append(arrow ? "➜ " : "").append(line).append("\n");
+        return this;
+    }
+
+    @NonNull
+    public EmbedDescriptionBuilder appendSubtitle(@NonNull String title) {
+        builder.append("**").append(title).append("**").append("\n");
+        return this;
+    }
+
+    @NonNull
+    public EmbedDescriptionBuilder emptyLine() {
+        builder.append("\n");
+        return this;
+    }
+
+    @NonNull
+    public String build() {
+        return builder.toString();
+    }
+}