From b8a7dfd74bc19095eebd4e3c5802f7951990c684 Mon Sep 17 00:00:00 2001
From: braiancalot <calot665@hotmail.com>
Date: Sat, 11 Jan 2025 09:54:20 -0300
Subject: [PATCH] feat: create and use `InternalServerError` in 
 `/api/v1/status`

---
 infra/errors.js              | 17 +++++++++
 pages/api/v1/status/index.js | 68 +++++++++++++++++++++---------------
 2 files changed, 56 insertions(+), 29 deletions(-)
 create mode 100644 infra/errors.js

diff --git a/infra/errors.js b/infra/errors.js
new file mode 100644
index 0000000..cdfe39e
--- /dev/null
+++ b/infra/errors.js
@@ -0,0 +1,17 @@
+export class InternalServerError extends Error {
+  constructor({ cause }) {
+    super("Um erro interno não esperado aconteceu.", { cause });
+    this.name = "InternalServerError";
+    this.action = "Entre em contato com o suporte.";
+    this.statusCode = 500;
+  }
+
+  toJSON() {
+    return {
+      name: this.name,
+      message: this.message,
+      action: this.action,
+      status_code: this.statusCode,
+    };
+  }
+}
diff --git a/pages/api/v1/status/index.js b/pages/api/v1/status/index.js
index cc09c12..7b6eea9 100644
--- a/pages/api/v1/status/index.js
+++ b/pages/api/v1/status/index.js
@@ -1,36 +1,46 @@
 import database from "infra/database.js";
+import { InternalServerError } from "infra/errors";
 
 async function status(req, res) {
-  const updatedAt = new Date().toISOString();
-
-  const databaseVersionResult = await database.query("SHOW server_version;");
-  const databaseVersionValue = databaseVersionResult.rows[0].server_version;
-
-  const databaseMaxConnectionsResult = await database.query(
-    "SHOW max_connections;",
-  );
-  const databaseMaxConnectionsValue =
-    databaseMaxConnectionsResult.rows[0].max_connections;
-
-  const databaseName = process.env.POSTGRES_DB;
-  const databaseOpenedConnectionsResult = await database.query({
-    text: "SELECT count(*)::int FROM pg_stat_activity WHERE datname = $1;",
-    values: [databaseName],
-  });
-
-  const databaseOpenedConnectionsValue =
-    databaseOpenedConnectionsResult.rows[0].count;
-
-  res.status(200).json({
-    updated_at: updatedAt,
-    dependencies: {
-      database: {
-        version: databaseVersionValue,
-        max_connections: parseInt(databaseMaxConnectionsValue),
-        opened_connections: databaseOpenedConnectionsValue,
+  try {
+    const updatedAt = new Date().toISOString();
+
+    const databaseVersionResult = await database.query("SHOW server_version;");
+    const databaseVersionValue = databaseVersionResult.rows[0].server_version;
+
+    const databaseMaxConnectionsResult = await database.query(
+      "SHOW max_connections;",
+    );
+    const databaseMaxConnectionsValue =
+      databaseMaxConnectionsResult.rows[0].max_connections;
+
+    const databaseName = process.env.POSTGRES_DB;
+    const databaseOpenedConnectionsResult = await database.query({
+      text: "SELECT count(*)::int FROM pg_stat_activity WHERE datname = $1;",
+      values: [databaseName],
+    });
+
+    const databaseOpenedConnectionsValue =
+      databaseOpenedConnectionsResult.rows[0].count;
+
+    res.status(200).json({
+      updated_at: updatedAt,
+      dependencies: {
+        database: {
+          version: databaseVersionValue,
+          max_connections: parseInt(databaseMaxConnectionsValue),
+          opened_connections: databaseOpenedConnectionsValue,
+        },
       },
-    },
-  });
+    });
+  } catch (error) {
+    const publicErrorObject = new InternalServerError({ cause: error });
+
+    console.log("\n Erro dentro do catch do controller:");
+    console.error(publicErrorObject);
+
+    res.status(500).json({ publicErrorObject });
+  }
 }
 
 export default status;