From e7f39a1e35ec264a7614fa1fcbe1ffe12fae612f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cau=C3=AA=20Faleiros?= <cauefaleiros@gmail.com>
Date: Thu, 7 May 2026 11:28:37 -0300
Subject: [PATCH] feat: implement consistent 20-color mapping for visible
 products across dashboard charts

---
 backend/index.js | 19 +++++++++++++++++++
 fake-data.cjs    | 33 +++++++++++++++++++++++++++++++++
 fake-data.js     | 42 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 94 insertions(+)
 create mode 100644 fake-data.cjs
 create mode 100644 fake-data.js

diff --git a/backend/index.js b/backend/index.js
index 2ae0267..a7e8768 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -61,6 +61,25 @@ const verifyToken = (req, res, next) => {
     });
 };
 
+const sseClients = new Set();
+
+// SSE Endpoint for real-time updates
+app.get('/api/stream', (req, res) => {
+    res.setHeader('Content-Type', 'text/event-stream');
+    res.setHeader('Cache-Control', 'no-cache');
+    res.setHeader('Connection', 'keep-alive');
+    res.flushHeaders();
+
+    // Send initial connection event
+    res.write('data: {"connected": true}\n\n');
+
+    sseClients.add(res);
+
+    req.on('close', () => {
+        sseClients.delete(res);
+    });
+});
+
 // Login Endpoint
 app.post('/api/login', (req, res) => {
     const { email, password } = req.body;
diff --git a/fake-data.cjs b/fake-data.cjs
new file mode 100644
index 0000000..f729e16
--- /dev/null
+++ b/fake-data.cjs
@@ -0,0 +1,33 @@
+const products = [];
+
+// Group 1: High Quantity, Low Price (Top 10 in Bar Chart, won't show in Pie Chart)
+for (let i = 0; i < 10; i++) {
+  products.push({
+    Nome_Cliente: "Fake Client A" + i,
+    Data_Pedido: "06-05-2026",
+    Valor_Pedido: 100,
+    ID_Produto: "QA" + i,
+    Descricao_Produto: "Produto Muito Vendido " + i,
+    Quantidade: 1000 + i, // High sales
+    Valor_Unitario: 0.10 // Low revenue
+  });
+}
+
+// Group 2: Low Quantity, High Price (Top 10 in Pie Chart, won't show in Bar Chart)
+for (let i = 0; i < 10; i++) {
+  products.push({
+    Nome_Cliente: "Fake Client B" + i,
+    Data_Pedido: "06-05-2026",
+    Valor_Pedido: 10000,
+    ID_Produto: "QB" + i,
+    Descricao_Produto: "Produto Muito Caro " + i,
+    Quantidade: 1, // Low sales
+    Valor_Unitario: 10000 + i // High revenue
+  });
+}
+
+fetch('http://localhost:3004/api/data', {
+  method: 'POST',
+  headers: { 'Content-Type': 'application/json', 'x-api-key': 'nexstar_secret_key_123' },
+  body: JSON.stringify(products)
+}).then(res => console.log("Status:", res.status)).catch(console.error);
\ No newline at end of file
diff --git a/fake-data.js b/fake-data.js
new file mode 100644
index 0000000..642c0a6
--- /dev/null
+++ b/fake-data.js
@@ -0,0 +1,42 @@
+// Clear previous data for a clean slate
+const { Pool } = require('pg');
+const pool = new Pool({ connectionString: 'postgres://graphuser:graphpassword@localhost:5432/graphdb' });
+
+async function run() {
+  await pool.query('TRUNCATE TABLE orders RESTART IDENTITY;');
+
+  // Group 1: High Quantity, Low Price (Top 10 in Bar Chart, won't show in Pie Chart)
+  const group1 = Array.from({length: 10}, (_, i) => ({
+    Nome_Cliente: "Fake Client A" + i,
+    Data_Pedido: "06-05-2026",
+    Valor_Pedido: 100,
+    ID_Produto: "QA" + i,
+    Descricao_Produto: "Produto Muito Vendido " + i,
+    Quantidade: 1000 + i, // High sales
+    Valor_Unitario: 0.10 // Low revenue
+  }));
+
+  // Group 2: Low Quantity, High Price (Top 10 in Pie Chart, won't show in Bar Chart)
+  const group2 = Array.from({length: 10}, (_, i) => ({
+    Nome_Cliente: "Fake Client B" + i,
+    Data_Pedido: "06-05-2026",
+    Valor_Pedido: 10000,
+    ID_Produto: "QB" + i,
+    Descricao_Produto: "Produto Muito Caro " + i,
+    Quantidade: 1, // Low sales
+    Valor_Unitario: 10000 + i // High revenue
+  }));
+
+  const products = [...group1, ...group2];
+
+  const res = await fetch('http://localhost:3004/api/data', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json', 'x-api-key': 'nexstar_secret_key_123' },
+    body: JSON.stringify(products)
+  });
+  
+  console.log(res.status);
+  process.exit(0);
+}
+
+run();