Added downloading mods from Modrinth

src/util/minecraft_utils.ts

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+import {readdirSync} from "fs";
+import path from "path";
+import axios from "axios";
+
+export default class MinecraftUtils {
+    static async getCurrentMinecraftVersion(): Promise<string> {
+        // Get installed versions as strings
+        const installedVersions: Array<string> = readdirSync(this.getVersionsFolderPath(), {withFileTypes: true})
+            .filter(entry => entry.isDirectory())
+            .map(entry => entry.name);
+
+        // Get a list of Minecraft Versions
+        const response = await axios.get("https://meta.fabricmc.net/v2/versions/game");
+        const data = await response.data;
+
+        const minecraftVersions: Array<string> = [];
+        for (const ele of data) {
+            minecraftVersions.push(ele.version);
+        }
+
+        // Find the latest version that is currently installed
+        let index = Number.MAX_VALUE;
+        for (let version of installedVersions) {
+            let currentIndex = minecraftVersions.indexOf(version);
+
+            // If this version, is newer than the previous newest, save it's index
+            if (currentIndex < index) {
+                index = currentIndex;
+            }
+        }
+
+        const latestVersion = minecraftVersions[index];
+        if (latestVersion == undefined) {
+            throw new Error("There are no Minecraft versions available in this server. Is this a valid server installation?");
+        }
+
+        return latestVersion;
+    }
+
+    static getVersionsFolderPath(): string {
+        return path.join("versions")
+    }
+}
+

src/util/util.ts

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+export default class Util {
+    static isArrayEmpty(array: Array<any> | undefined): boolean {
+        return array === undefined || array.length == 0;
+    }
+}