Added screen scraper for auction data

Author: Clonex

eng.traineddata

@@ -7,6 +7,7 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "start": "node src/index.js",
+    "scrape": "node src/scrape.js",
     "start:watch": "nodemon src/index.js"
   },
   "repository": {
@@ -20,6 +21,14 @@
   },
   "homepage": "https://github.com/Clonex/lost-ark-calculator#readme",
   "dependencies": {
+    "clipboardy": "^3.0.0",
+    "jimp": "^0.16.1",
+    "node-tesseract-ocr": "^2.2.1",
+    "robotjs": "^0.6.0",
+    "screenshot-desktop": "^1.12.7",
+    "tesseract.js": "^2.1.5"
+  },
+  "devDependencies": {
     "nodemon": "^2.0.15"
   }
 }

package.json

@@ -0,0 +1,76 @@
+import robot from "robotjs";
+import clipboard from "clipboardy";
+
+import { createWorker } from 'tesseract.js';
+import {captureImage, wait} from "./helpers.js";
+
+
+export default class AuctionExtractor {
+    SEARCH_POS = {x: 1551, y: 243};
+    LOADING_POS = {x: 1060, y: 447};
+    PRICE_POS = {x: 1082, y: 312};
+
+    LOADING_COLOR = "101114";
+
+    _worker;
+    constructor()
+    {
+        // this.getPrice("Elemental HP potion");
+        this._worker = createWorker({
+            logger: m => {}
+        });
+    }
+
+    async start(items)
+    {
+        let out = {};
+
+        const names = Object.keys(items);
+        for(let i = 0; i < 5; i++) //names.length
+        {
+            const name = names[i];
+            out[name] = await this.getPrice(name);
+            console.log(`[${i}/${names.length}]`, "Got price for", name, "=", out[name]);
+        }
+
+        return out;
+        // const test = await this.getPrice("Strong Iron Ore");
+        // console.log("Got something", test);
+    }
+
+    async getPrice(itemName)
+    {
+        await clipboard.write(itemName);
+        await wait(10);
+        // To search bar and search
+        robot.moveMouse(this.SEARCH_POS.x, this.SEARCH_POS.y);
+        robot.mouseClick();
+
+        robot.moveMouse(this.SEARCH_POS.x - 100, this.SEARCH_POS.y);
+        robot.mouseClick();
+        // await clipboard.read();
+        robot.keyTap('v', 'control');
+        
+        // robot.typeStringDelayed(itemName, 99999999999999);
+        robot.keyTap("enter");
+        
+        // Wait for search results
+        await wait(120);
+        while(robot.getPixelColor(this.LOADING_POS.x, this.LOADING_POS.y) === this.LOADING_COLOR)
+        {
+            await wait(100);
+        }
+        
+        const price = await captureImage(this.PRICE_POS.x, this.PRICE_POS.y, 123, 39, itemName);
+        
+        
+        await this._worker.load();
+        await this._worker.loadLanguage('eng');
+        await this._worker.initialize('eng');
+        await this._worker.setParameters({
+            tessedit_char_whitelist: '0123456789.',
+        });
+        const { data: { text } } = await this._worker.recognize(price);
+        return text.length > 0 ? Number(text.trim()) : false;
+    }
+}