1 files changed, 58 insertions, 0 deletions
diff --git a/src/versionChecker/index.js b/src/versionChecker/index.js
new file mode 100644
index 0000000..69bf848
--- /dev/null
+++ b/src/versionChecker/index.js
@@ -0,0 +1,58 @@
+let fs = require("fs-extra");
+let url = require("url");
+let request = require('request');
+let exec = require("child_process").exec;
+
+class versionChecker {
+
+    constructor(configJson, packageJson) {
+        this.config = JSON.parse(fs.readFileSync(configJson));
+        this.CPackageJson = JSON.parse(fs.readFileSync(packageJson));
+
+        this.version = this.CPackageJson["version"];
+        this.repoVersion = this.version;
+        this.checkFrequency = this.config["checkInterval"] * 10 * 10; // takes in hours
+        this.repoLink = this.CPackageJson["repository"]["url"];
+        this.repoBranch = this.config["branch"];
+
+        this.checkVersion(this); // Because we have to send the reference in our interval, we have to to it here as well
+        this.updateChecker = setInterval(this.checkVersion, this.checkFrequency, this);  // We have to send a reference to this class
+    }
+
+    checkVersion(parent) {
+        if (typeof(parent) == "undefined") { parent = this; }
+        let path = url.parse(parent.repoLink);
+        let link = "https://raw.githubusercontent.com" + path.pathname + '/' + parent.repoBranch + "/package.json";
+
+        request.get(link, (error, response, body) => {
+            if (!error && response.statusCode === 200) {
+                let remotePackageJSON = JSON.parse(body);
+                this.repoVersion = remotePackageJSON["version"];
+                if (parent.VersionIsNewerThan(this.repoVersion, parent.version)) {
+                    global.log("A new version is available on \"" + parent.repoBranch + "\" (v" + this.repoVersion + ")", "INFO");
+                }
+            } else {
+                global.log("Could not find latest version! Please check you internet connection.", "ERROR");
+            }
+        });
+    }
+
+    VersionIsNewerThan(check, current) {
+        let checkParts = check.split(".");
+        let currentParts = current.split(".");
+        let lCheckParts = checkParts.length;
+        let lCurrentParts = currentParts.length;
+
+        for (let i = 0; i < lCheckParts; i++) {
+            if (i >= lCurrentParts) { return true; }
+            if (Number (checkParts[i]) > Number (currentParts[i])) { return true; }
+            if (Number (checkParts[i]) < Number (currentParts[i])) { return false; }
+        }
+        return false;
+    }
+
+}
+ 
+module.exports = (configJson, packageJson) => {
+    return new versionChecker(configJson, packageJson);
+};