Output to file

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 .vscode
+index.txt

Output.js

@@ -0,0 +1,23 @@
+const fs = require('fs')
+
+module.exports = class Output {
+  constructor () {
+    this.content = ''
+  }
+
+  addLine (text) {
+    this.content += text + '\n'
+  }
+
+  submit () {
+    const filename = 'index.txt'
+
+    try {
+      fs.unlinkSync(filename)
+    } catch (error) {
+      console.error(error)
+      console.log('File probably doesnt exist')
+    }
+    fs.writeFileSync(filename, this.content)
+  }
+}

getPrice.js

@@ -1,6 +0,0 @@
-module.exports = async function (page, url) {
-  await page.goto(url)
-  const element = await page.waitForSelector('b.price')
-  const value = await element.evaluate(el => el.textContent)
-  return Number(value)
-}

index.js

@@ -1,5 +1,7 @@
 const puppeteer = require('puppeteer')
-const items = require('./items');
+const items = require('./items')
+const Output = require('./Output')
+const output = new Output();
 
 (async () => {
   const browser = await puppeteer.launch({ headless: false })
@@ -13,9 +15,10 @@ const items = require('./items');
 
     const setPrice = await item.set.getPrice(page)
     if (partsPrice < setPrice) {
-      console.log(item.name, partsPrice, setPrice)
+      output.addLine(`${item.name} prime: ${partsPrice}/${setPrice} выгода ${setPrice - partsPrice}`)
     }
   }
 
   await browser.close()
+  output.submit()
 })()

items/Item.js

@@ -9,7 +9,7 @@ module.exports = class Item {
     this.addPart('blueprint')
   }
 
-  addPart (part) {
-    this.parts.push(new Part(this.name, part))
+  addPart (part, amount) {
+    this.parts.push(new Part(this.name, part, amount))
   }
 }

items/Part.js

@@ -1,7 +1,8 @@
 module.exports = class Part {
-  constructor (set, part) {
+  constructor (set, part, amount) {
     this.part = part
     this.url = `${set}_prime_${part}`
+    this.amount = amount ?? 1
   }
 
   async getPrice (page) {
@@ -10,6 +11,6 @@ module.exports = class Part {
     await page.goto(marketUrl + this.url)
     const element = await page.waitForSelector('b.price')
     const value = await element.evaluate(el => el.textContent)
-    return Number(value)
+    return Number(value) * this.amount
   }
 }

items/Primary.js

@@ -0,0 +1,11 @@
+const Item = require('./Item')
+
+module.exports = class Primary extends Item {
+  constructor (name) {
+    super(name)
+
+    this.addPart('barrel')
+    this.addPart('receiver')
+    this.addPart('stock')
+  }
+}

items/Secondary.js

@@ -0,0 +1,11 @@
+const Item = require('./Item')
+
+module.exports = class Secondary extends Item {
+  constructor (name) {
+    super(name)
+
+    this.addPart('barrel', 2)
+    this.addPart('receiver', 2)
+    this.addPart('link')
+  }
+}

items/index.js

@@ -1,6 +1,29 @@
 const Warframe = require('./Warframe')
+const Primary = require('./Primary')
+// const Secondary = require('./Secondary')
 
-module.exports = [
-  new Warframe('ash'),
-  new Warframe('atlas')
+const warframes = [
+  'ash', 'atlas', 'banshee', 'chroma', 'ember',
+  'equinox', 'frost', 'gara', 'harrow', 'hydroid',
+  'inaros', 'ivara', 'limbo', 'loki', 'mag',
+  'mesa', 'mirage', 'nekros', 'nezha', 'nidus',
+  'nova', 'nyx', 'oberon', 'octavia', 'rhino',
+  'saryn', 'titania', 'trinity', 'valkyr', 'vauban',
+  'volt', 'wukong', 'zephyr'
 ]
+
+const primaries = [
+  'astilla', 'baza', 'boar', 'boltor', 'braton'
+]
+
+const items = []
+
+warframes.forEach((name) => {
+  items.push(new Warframe(name))
+})
+
+primaries.forEach((name) => {
+  items.push(new Primary(name))
+})
+
+module.exports = items