Sales analytics api

.gitignore

@@ -0,0 +1,60 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# Compiled output
+**/dist
+**/tmp
+**/out-tsc
+**/bazel-out
+
+# Node
+**/node_modules
+**/npm-debug.log
+**/yarn-error.log
+
+# Miscellaneous
+**/.sass-cache/
+**/connect.lock
+**/coverage
+**/libpeerconnection.log
+**/testem.log
+**/typings
+
+# System files
+**/.DS_Store
+**/Thumbs.db
+
+**/HELP.md
+**/.gradle
+**/build/
+!**/gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+**/.idea
+**/*.iws
+**/*.iml
+**/*.ipr
+**/out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### VS Code ###
+**/.vscode/
+
+# React specific
+**/build/
+**/.eslintcache
+**/node_modules/

sales analytics_UI/.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

sales analytics_UI/README.md

@@ -0,0 +1,12 @@
+# React + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend using TypeScript with type-aware lint rules enabled. Check out the [TS template](https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react-ts) for information on how to integrate TypeScript and [`typescript-eslint`](https://typescript-eslint.io) in your project.

sales analytics_UI/eslint.config.js

@@ -0,0 +1,33 @@
+import js from '@eslint/js'
+import globals from 'globals'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+
+export default [
+  { ignores: ['dist'] },
+  {
+    files: ['**/*.{js,jsx}'],
+    languageOptions: {
+      ecmaVersion: 2020,
+      globals: globals.browser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        ecmaFeatures: { jsx: true },
+        sourceType: 'module',
+      },
+    },
+    plugins: {
+      'react-hooks': reactHooks,
+      'react-refresh': reactRefresh,
+    },
+    rules: {
+      ...js.configs.recommended.rules,
+      ...reactHooks.configs.recommended.rules,
+      'no-unused-vars': ['error', { varsIgnorePattern: '^[A-Z_]' }],
+      'react-refresh/only-export-components': [
+        'warn',
+        { allowConstantExport: true },
+      ],
+    },
+  },
+]

sales analytics_UI/generateSyntheticEcommerceData.cjs

@@ -0,0 +1,112 @@
+// Give this file the name 'generateSyntheticEcommerceData.js'
+/**
+ * Generates a large CSV file with random e-commerce orders for testing data-intensive applications.
+ * Usage (from terminal): node generateSyntheticEcommerceData.js
+ */
+
+const fs = require("fs");
+const { v4: uuidv4 } = require("uuid");
+
+// Define some sample products, user pools, and geolocations
+const products = [
+  { product_id: 1001, name: "Wireless Mouse", base_price: 19.99 },
+  { product_id: 1002, name: "Bluetooth Headphones", base_price: 49.99 },
+  { product_id: 1003, name: "Mechanical Keyboard", base_price: 89.99 },
+  { product_id: 1004, name: "USB-C Cable", base_price: 9.99 },
+  { product_id: 1005, name: "Webcam", base_price: 39.99 },
+  { product_id: 1006, name: "Laptop Stand", base_price: 25.99 },
+  { product_id: 1007, name: "4K Monitor", base_price: 229.99 },
+  { product_id: 1008, name: "Portable SSD", base_price: 79.99 },
+  { product_id: 1009, name: "Smartphone Case", base_price: 15.99 },
+  { product_id: 1010, name: "Wireless Charger", base_price: 29.99 },
+];
+
+const countries = ["USA", "Canada", "UK", "Germany", "France", "Australia", "Japan", "Brazil", "India", "Mexico"];
+
+const cities = {
+  USA: ["New York", "Los Angeles", "Chicago", "Houston", "Seattle"],
+  Canada: ["Toronto", "Vancouver", "Montreal", "Ottawa"],
+  UK: ["London", "Manchester", "Bristol", "Birmingham"],
+  Germany: ["Berlin", "Munich", "Hamburg", "Frankfurt"],
+  France: ["Paris", "Lyon", "Marseille", "Toulouse"],
+  Australia: ["Sydney", "Melbourne", "Brisbane", "Perth"],
+  Japan: ["Tokyo", "Osaka", "Yokohama", "Nagoya"],
+  Brazil: ["Sao Paulo", "Rio de Janeiro", "Brasilia", "Salvador"],
+  India: ["Mumbai", "Delhi", "Bangalore", "Hyderabad"],
+  Mexico: ["Mexico City", "Guadalajara", "Monterrey", "Puebla"],
+};
+
+function generateSyntheticEcommerceData(outputCsv = "synthetic_orders.csv", numRecords = 1_000_000) {
+  // Determine date range (last 365 days up to today)
+  const now = new Date();
+  const startDate = new Date(now.getTime() - 365 * 24 * 60 * 60 * 1000); // 365 days ago
+
+  // Create a writable stream for CSV
+  const writeStream = fs.createWriteStream(outputCsv, { encoding: "utf-8" });
+
+  // Write header row
+  writeStream.write([
+    "order_id",
+    "order_date",
+    "user_id",
+    "product_id",
+    "quantity",
+    "price",
+    "total_amount",
+    "country",
+    "city"
+  ].join(",") + "\n");
+
+  for (let i = 0; i < numRecords; i++) {
+    const orderId = uuidv4();
+
+    // Generate a random date within the last 365 days
+    const randomDays = Math.floor(Math.random() * 365);
+    const orderDate = new Date(startDate.getTime() + randomDays * 24 * 60 * 60 * 1000);
+    const orderDateStr = orderDate.toISOString().split("T")[0]; // YYYY-MM-DD
+
+    // Random user ID
+    const userId = Math.floor(Math.random() * 900_000) + 100_000; // 100000-999999
+
+    // Random product
+    const product = products[Math.floor(Math.random() * products.length)];
+    const productId = product.product_id;
+    const basePrice = product.base_price;
+
+    // Random quantity and slight price variation
+    const quantity = Math.floor(Math.random() * 5) + 1; // 1-5
+    const finalPrice = +(basePrice * (0.9 + Math.random() * 0.2)).toFixed(2); // +/- 10%
+    const totalAmount = +(finalPrice * quantity).toFixed(2);
+
+    // Random country and city
+    const country = countries[Math.floor(Math.random() * countries.length)];
+    const cityList = cities[country];
+    const city = cityList[Math.floor(Math.random() * cityList.length)];
+
+    // Write one CSV record
+    writeStream.write([
+      orderId,
+      orderDateStr,
+      userId,
+      productId,
+      quantity,
+      finalPrice,
+      totalAmount,
+      country,
+      city
+    ].join(",") + "\n");
+  }
+
+  // End the stream
+  writeStream.end(() => {
+    console.log(`Successfully generated ${numRecords} synthetic records in '${outputCsv}'.`);
+  });
+}
+
+// Run the script if called directly (e.g., `node generateSyntheticEcommerceData.js`)
+if (require.main === module) {
+  generateSyntheticEcommerceData("synthetic_orders.csv", 100000);
+}
+
+// Otherwise, you can export the function for use in other modules:
+// module.exports = { generateSyntheticEcommerceData };

sales analytics_UI/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite + React</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>