Cleanup and add tests

Author: Bassem Dghaidi

matcher.js

@@ -0,0 +1,58 @@
+const match = (payload, pattern) => {
+    let result = { match: true, total: 0, matches: {}, groups: {}};
+    let node = result.matches;
+
+    const tester = (payload, pattern, current_node) => {
+
+        Object.entries(pattern).forEach(([key, value]) => {
+            if(value instanceof RegExp){
+                const matcher = payload[key].match(value) || [];
+                if (matcher.length > 0) {
+                    result.groups =  {...result.groups, ...matcher.groups};
+                    current_node[key] = payload[key];
+                    result.total += 1;
+                } else {
+                    result.match = false;
+                }
+            } else if (value instanceof Array) {
+                current_node[key] = [];
+                value.forEach((element, index) => {
+                    if(element instanceof RegExp){
+                        const matcher = payload[key][index].match(element) || [];
+                        if (matcher.length > 0) {
+                            result.groups = { ...result.groups, ...matcher.groups};
+                            current_node[key] = payload[key];
+                            result.total += 1;
+                        } else {
+                            result.match = false;
+                        }
+                    } else if (element instanceof Object) {
+                        current_node[key][index] = {};
+                        tester(payload[key][index], element, current_node[key][index]);
+                    } else if (payload[key].includes(element)) {
+                        current_node[key][index] = element;
+                        result.total += 1;
+                    } else {
+                        result.match = false;
+                    }
+                });
+            } else if (value instanceof Object) {
+                current_node[key] = {};
+                tester(payload[key], value, current_node[key]);
+            } else {
+                if (payload[key] != value){
+                    result.match = false;
+                } else {
+                    current_node[key] = payload[key];
+                    result.total += 1;
+                }
+            }
+        })
+    }
+
+    tester(payload, pattern, node);
+
+    return result;
+}
+
+module.exports = match;