1. Module bundling added to reduce server calls as each file was taking ~440 ms to load on public server.\n2. JavaScript lib files refactored with OOP for use with module bundling.

node_modules/icss-utils/src/extractICSS.js

@@ -0,0 +1,76 @@
+const importPattern = /^:import\(("[^"]*"|'[^']*'|[^"']+)\)$/;
+const balancedQuotes = /^("[^"]*"|'[^']*'|[^"']+)$/;
+
+const getDeclsObject = (rule) => {
+  const object = {};
+
+  rule.walkDecls((decl) => {
+    const before = decl.raws.before ? decl.raws.before.trim() : "";
+
+    object[before + decl.prop] = decl.value;
+  });
+
+  return object;
+};
+/**
+ *
+ * @param {string} css
+ * @param {boolean} removeRules
+ * @param {'auto' | 'rule' | 'at-rule'} mode
+ */
+const extractICSS = (css, removeRules = true, mode = "auto") => {
+  const icssImports = {};
+  const icssExports = {};
+
+  function addImports(node, path) {
+    const unquoted = path.replace(/'|"/g, "");
+    icssImports[unquoted] = Object.assign(
+      icssImports[unquoted] || {},
+      getDeclsObject(node)
+    );
+
+    if (removeRules) {
+      node.remove();
+    }
+  }
+
+  function addExports(node) {
+    Object.assign(icssExports, getDeclsObject(node));
+    if (removeRules) {
+      node.remove();
+    }
+  }
+
+  css.each((node) => {
+    if (node.type === "rule" && mode !== "at-rule") {
+      if (node.selector.slice(0, 7) === ":import") {
+        const matches = importPattern.exec(node.selector);
+
+        if (matches) {
+          addImports(node, matches[1]);
+        }
+      }
+
+      if (node.selector === ":export") {
+        addExports(node);
+      }
+    }
+
+    if (node.type === "atrule" && mode !== "rule") {
+      if (node.name === "icss-import") {
+        const matches = balancedQuotes.exec(node.params);
+
+        if (matches) {
+          addImports(node, matches[1]);
+        }
+      }
+      if (node.name === "icss-export") {
+        addExports(node);
+      }
+    }
+  });
+
+  return { icssImports, icssExports };
+};
+
+module.exports = extractICSS;