From 4762cc5442ed01cb7bc846d758d828711f392ed8 Mon Sep 17 00:00:00 2001
From: n1073645 <n1073645@gmail.com>
Date: Tue, 17 Dec 2019 11:10:50 +0000
Subject: [PATCH] Adding the extract entropies operation

---
 src/core/operations/ExtractEntropies.mjs | 67 ++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 src/core/operations/ExtractEntropies.mjs

diff --git a/src/core/operations/ExtractEntropies.mjs b/src/core/operations/ExtractEntropies.mjs
new file mode 100644
index 00000000..8ee1622f
--- /dev/null
+++ b/src/core/operations/ExtractEntropies.mjs
@@ -0,0 +1,67 @@
+/**
+ * @author n1073645 [n1073645@gmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import Entropy from "./Entropy.mjs";
+
+/**
+ * Extract Entropies operation
+ */
+class ExtractEntropies extends Operation {
+
+    /**
+     * ExtractEntropies constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Extract Entropies";
+        this.module = "Default";
+        this.description = "";
+        this.infoURL = "";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "List<File>";
+        this.args = [
+            {
+                name: "Entropies",
+                type: "option",
+                value: ["High", "Low", "High and Low", "Value Range"]
+            },
+            {
+                name: "Upper bound Entropy",
+                type: "number",
+                value: ""
+            },
+            {
+                name: "Lower bound Entropy",
+                type: "number",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {List<File>}
+     */
+    run(input, args) {
+        let entropies = new Entropy().calculateScanningEntropy(new Uint8Array(input));
+        let currentMin = [8, -1];
+        entropies.entropyData.forEach((element, index) => {
+            if (element < currentMin[0]) {
+                currentMin = [element, index]
+            }
+        });
+        console.log(currentMin);
+
+        return " ";
+    }
+
+}
+
+export default ExtractEntropies;