Move ImportGrouped rule logic to class

lib/rules/import-grouped.js

@@ -8,12 +8,71 @@
 // Rule Definition
 //------------------------------------------------------------------------------
 
+class ImportGrouped {
+  // static extensionDelimiter = '.';
+
+  constructor({ options }) {
+    this.importNodes = [];
+    this.optionsExtOrder = options[0] || [];
+    this.optionsExtOrder = this.optionsExtOrder.map((ext) => ext.toLowerCase());
+    console.log(options);
 
-const importNodes = [];
-function registerNode(importNode) {
-    importNodes.push(importNode);
   }
 
+  registerNode(newNode) {
+    this.importNodes.push(newNode);
+  }
+
+  sortNodesByAscending() {
+    this.importNodes.sort((node1, node2) => node1.start > node2.start)
+  }
+
+  getExtension(node) {
+    let extensionWithDot = '';
+
+    if (node.source && node.source.value) {
+      const path = node.source.value;
+
+      if (path.includes(ImportGrouped.extensionDelimiter)) {
+        const startPos = path.lastIndexOf(ImportGrouped.extensionDelimiter);
+        extensionWithDot = path.substr(startPos);
+      }
+    }
+
+    return extensionWithDot;
+  }
+
+  findBrokenNodes() {
+    const brokenNodes = [];
+
+    let lastMatchedIndexInOptions = -1;
+
+    for (const tmpImportNode of this.importNodes) {
+      const tmpExt = this.getExtension(tmpImportNode).toLowerCase();
+      console.log(`Got ext with ${tmpExt}`);
+
+      if (this.optionsExtOrder.includes(tmpExt)) {
+        console.log(`which is there in options`);
+        const newMatchIndex = this.optionsExtOrder.indexOf(tmpExt);
+        console.log(`at index ${newMatchIndex}`);
+        if (newMatchIndex >= lastMatchedIndexInOptions) {
+          console.log(`which is greater than last matched index`);
+          lastMatchedIndexInOptions = newMatchIndex;
+        } else {
+          console.log(`which is less than last matched index. PROBLEM`);
+          brokenNodes.push(tmpImportNode)
+        }
+      }
+    }
+
+    return brokenNodes
+  }
+
+}
+
+ImportGrouped.importNodeSelector = 'ImportDeclaration';
+ImportGrouped.extensionDelimiter = '.';
+
 module.exports = {
   meta: {
     docs: {
@@ -23,13 +82,19 @@ module.exports = {
     },
     fixable: null,  // or "code" or "whitespace"
     schema: [
-            // fill in your schema
+      {
+        "type": "array",
+        "items": {
+          "type": "string"
+        }
+      },
     ]
   },
 
   create: function (context) {
 
     // variables should be defined here
+    const importGrouped = new ImportGrouped(context);
 
     //----------------------------------------------------------------------
     // Helpers
@@ -42,21 +107,27 @@ module.exports = {
     //----------------------------------------------------------------------
 
     return {
-            ImportDeclaration: function handleImports(node) {
+      [ImportGrouped.importNodeSelector]: function handleImports(node) {
-                registerNode(node);
+        importGrouped.registerNode(node);
       },
       'Program:exit': function reportAndReset() {
-                // Calc problems and report stuff here
+        // console.log(importGrouped.importNodes);
 
-                // context.report({
+        // Calc problems and report stuff here
-                //     node: secondNode.node,
+        const brokenNodes = importGrouped.findBrokenNodes();
-                //     message: message,
+
+        brokenNodes.forEach((eachBrokenNode) => {
+          context.report({
+            node: eachBrokenNode,
+            message: 'Node doesn\'t match import order',
             // fix: canFix && (fixer =>
             //   fixer.replaceTextRange(
             //     [firstRootStart, secondRootEnd],
             //     newCode + sourceCode.text.substring(firstRootStart, secondRootStart)
             //   )),
-                // })
+          })
+        })
+
       },
 
     };