From dff6905050d47d1c4f49046278b6615dca4dc8ec Mon Sep 17 00:00:00 2001
From: Douglas Barone <douglasvbarone@gmail.com>
Date: Tue, 20 Jun 2023 15:45:35 -0400
Subject: [PATCH] Get status

---
 src/controllers/PrinterController.ts       | 16 ++++++++++++---
 src/controllers/PrinterStatusController.ts |  3 ++-
 src/utils/distributedCopy.ts               | 23 ++++++++++++++++++++++
 3 files changed, 38 insertions(+), 4 deletions(-)
 create mode 100644 src/utils/distributedCopy.ts

diff --git a/src/controllers/PrinterController.ts b/src/controllers/PrinterController.ts
index c6c5af2..87dafff 100644
--- a/src/controllers/PrinterController.ts
+++ b/src/controllers/PrinterController.ts
@@ -3,6 +3,7 @@ import { Request, Response, Router } from 'express'
 import { hasRolesMiddleware } from '../middlewares/hasRolesMiddleware.js'
 import { prisma } from '../prisma.js'
 import { PrinterStatusService } from '../services/PrinterStatusService.js'
+import { distributedCopy } from '../utils/distributedCopy.js'
 
 const router = Router()
 
@@ -15,9 +16,9 @@ class PrinterController {
 
   static async show(req: Request, res: Response) {
     const { id } = req.params
+    const { take, minutes = 43200 } = req.query
 
-    // 30 days
-    const gte = new Date(Date.now() - 1000 * 60 * 60 * 24 * 30)
+    const gte = new Date(Date.now() - 1000 * 60 * Number(minutes))
 
     const printer = await prisma.printer.findUnique({
       where: { id: Number(id) },
@@ -27,12 +28,21 @@ class PrinterController {
             createdAt: {
               gte
             }
+          },
+
+          orderBy: {
+            createdAt: 'desc'
           }
         }
       }
     })
 
-    res.json(printer)
+    if (printer)
+      res.json({
+        ...printer,
+        status: distributedCopy(printer.status, Number(take))
+      })
+    else res.status(400).json({ error: 'Printer not found' })
   }
 
   static async create(req: Request, res: Response) {
diff --git a/src/controllers/PrinterStatusController.ts b/src/controllers/PrinterStatusController.ts
index 12b0242..2058851 100644
--- a/src/controllers/PrinterStatusController.ts
+++ b/src/controllers/PrinterStatusController.ts
@@ -16,5 +16,6 @@ class PrinterStatusController {
   }
 }
 
-router.get('/update', PrinterStatusController.update)
+router.post('/update', PrinterStatusController.update)
+
 export default router
diff --git a/src/utils/distributedCopy.ts b/src/utils/distributedCopy.ts
new file mode 100644
index 0000000..e2b1397
--- /dev/null
+++ b/src/utils/distributedCopy.ts
@@ -0,0 +1,23 @@
+/**
+ * Retrieve a fixed number of elements from an array, evenly distributed but
+ * always including the first and last elements.
+ *
+ * @param   {Array} originalArray - The array to operate on.
+ * @param   {number} take - The number of elements to extract.
+ * @returns {Array}
+ */
+
+export function distributedCopy(originalArray: Array<any>, take: number = 10) {
+  if (originalArray.length <= take) return [...originalArray]
+
+  const newArray = [originalArray[0]]
+
+  const interval = (originalArray.length - 2) / (take - 2)
+
+  for (let i = 1; i < take - 1; i++)
+    newArray.push(originalArray[Math.floor(interval * i)])
+
+  newArray.push(originalArray[originalArray.length - 1])
+
+  return newArray
+}