From 2d1eaa6eb40c906e503d84e597e68fcf570d9748 Mon Sep 17 00:00:00 2001
From: Observer KRypt0n_ <suimin.tu.mu.ga.mi@gmail.com>
Date: Tue, 21 Dec 2021 01:39:48 +0200
Subject: [PATCH] Added downloader class

---
 package.json         |  4 +-
 src/pages/index.ts   | 13 +++++-
 src/ts/Downloader.ts | 95 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 108 insertions(+), 4 deletions(-)
 create mode 100644 src/ts/Downloader.ts

diff --git a/package.json b/package.json
index 7315bb8..911501b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
-  "name": "neutralino-template",
-  "version": "0.0.0",
+  "name": "an-anime-game-launcher",
+  "version": "3.0.0",
   "scripts": {
     "dev": "vite build && neu run",
     "build": "vite build && neu build --release"
diff --git a/src/pages/index.ts b/src/pages/index.ts
index 1472104..99e89e8 100644
--- a/src/pages/index.ts
+++ b/src/pages/index.ts
@@ -1,9 +1,18 @@
 import * as Vue from 'vue/dist/vue.esm-bundler';
 
 import Window from '../ts/neutralino/Window';
-import Runners from '../ts/Runners';
 
-Runners.get().then(console.log);
+import Downloader from '../ts/Downloader';
+
+Downloader.download('https://vitejs.dev/', 'test.html').then((stream) => {
+    stream.progress((current: number, total: number) => {
+        console.log(`${Math.round(current / total * 100)}%`);
+    });
+
+    stream.finish(() => {
+        console.log('finished');
+    });
+});
 
 Vue.createApp({
     data: () => {
diff --git a/src/ts/Downloader.ts b/src/ts/Downloader.ts
new file mode 100644
index 0000000..1482813
--- /dev/null
+++ b/src/ts/Downloader.ts
@@ -0,0 +1,95 @@
+class Stream
+{
+    protected uri: string;
+    protected total: number|null;
+
+    protected onProgress?: (current: number, total: number) => void;
+    protected onFinish?: () => void;
+
+    protected finished: boolean = false;
+
+    public constructor(uri: string, output: string, total: number|null = null)
+    {
+        this.uri = uri;
+        this.total = total;
+
+        // @ts-expect-error
+        Neutralino.os.execCommand(`wget -O "${output}" -nv "${uri}"`).then(() => {
+            this.finished = true;
+
+            this.onFinish();
+        });
+
+        if (total !== null)
+        {
+            const updateProgress = () => {
+                // @ts-expect-error
+                Neutralino.filesystem.getStats(output).then((stats) => {
+                    if (this.onProgress)
+                        this.onProgress(stats.size, this.total);
+
+                    if (!this.finished)
+                        setTimeout(updateProgress, 100);
+                });
+            };
+
+            updateProgress();
+        }
+    }
+
+    /**
+     * Specify event that will be called every 100 ms during the file downloading
+     * 
+     * @param callable
+     */
+    public progress(callable: (current: number, total: number) => void)
+    {
+        this.onProgress = callable;
+    }
+
+    /**
+     * Specify event that will be called after the file will be downloaded
+     * 
+     * @param callable
+     */
+    public finish(callable: () => void)
+    {
+        this.onFinish = callable;
+
+        if (this.finished)
+            callable();
+    }
+}
+
+export default class Downloader
+{
+    /**
+     * Download file
+     * 
+     * @param uri
+     * @param output
+     * 
+     * @returns Promise<Stream>
+     */
+    public static async download(uri: string, output: string): Promise<Stream>
+    {
+        return new Promise(async (resolve) => {
+            // @ts-expect-error
+            let statsRaw = await Neutralino.os.execCommand(`wget --spider "${uri}"`);
+
+            if (statsRaw.stdOut == '')
+                statsRaw = statsRaw.stdErr;
+
+            else statsRaw = statsRaw.stdOut;
+
+            let length: any = /Length: ([\d]+)/.exec(statsRaw)[1] ?? null;
+
+            if (length !== null)
+                length = parseInt(length);
+
+            resolve(new Stream(uri, output, length));
+        });
+    }
+}
+
+export { Stream };