feat(puchase hist): finished up purhcase historical / gp updates

backend/gpSql/gpSql.routes.ts

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+import { type Express, Router } from "express";
+import { requireAuth } from "../middleware/auth.middleware.js";
+import restart from "./gpSqlRestart.route.js";
+import start from "./gpSqlStart.route.js";
+import stop from "./gpSqlStop.route.js";
+export const setupGPSqlRoutes = (baseUrl: string, app: Express) => {
+	//setup all the routes
+	// Apply auth to entire router
+	const router = Router();
+	router.use(requireAuth);
+
+	router.use(start);
+	router.use(stop);
+	router.use(restart);
+
+	app.use(`${baseUrl}/api/system/gpSql`, router);
+};

backend/gpSql/gpSqlConnection.controller.ts

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+import sql from "mssql";
+import { gpSqlConfig } from "../configs/gpSql.config.js";
+import { createLogger } from "../logger/logger.controller.js";
+import { checkHostnamePort } from "../utils/checkHost.utils.js";
+import { returnFunc } from "../utils/returnHelper.utils.js";
+
+export let pool2: sql.ConnectionPool;
+export let connected: boolean = false;
+export let reconnecting = false;
+
+export const connectGPSql = async () => {
+	const serverUp = await checkHostnamePort(`USMCD1VMS011:1433`);
+	if (!serverUp) {
+		// we will try to reconnect
+		connected = false;
+		return returnFunc({
+			success: false,
+			level: "error",
+			module: "system",
+			subModule: "db",
+			message: "GP server is offline or unreachable.",
+		});
+	}
+
+	// if we are trying to click restart from the api for some reason we want to kick back and say no
+	if (connected) {
+		return returnFunc({
+			success: false,
+			level: "error",
+			module: "system",
+			subModule: "db",
+			message: "The Sql server is already connected.",
+		});
+	}
+
+	// try to connect to the sql server
+	try {
+		pool2 = new sql.ConnectionPool(gpSqlConfig);
+		await pool2.connect();
+		connected = true;
+		return returnFunc({
+			success: true,
+			level: "info",
+			module: "system",
+			subModule: "db",
+			message: `${gpSqlConfig.server} is connected to ${gpSqlConfig.database}`,
+			data: [],
+			notify: false,
+		});
+	} catch (error) {
+		return returnFunc({
+			success: false,
+			level: "error",
+			module: "system",
+			subModule: "db",
+			message: "Failed to connect to the prod sql server.",
+			data: [error],
+			notify: false,
+		});
+	}
+};
+
+export const closePool = async () => {
+	if (!connected) {
+		return returnFunc({
+			success: false,
+			level: "error",
+			module: "system",
+			subModule: "db",
+			message: "There is no connection to the prod server currently.",
+		});
+	}
+
+	try {
+		await pool2.close();
+		connected = false;
+		return returnFunc({
+			success: true,
+			level: "info",
+			module: "system",
+			subModule: "db",
+			message: "The sql connection has been closed.",
+		});
+	} catch (error) {
+		connected = false;
+
+		return returnFunc({
+			success: false,
+			level: "error",
+			module: "system",
+			subModule: "db",
+			message: "There was an error closing the sql connection",
+			data: [error],
+		});
+	}
+};
+export const reconnectToSql = async () => {
+	const log = createLogger({
+		module: "system",
+		subModule: "db",
+	});
+	if (reconnecting) return;
+
+	//set reconnecting to true while we try to reconnect
+	reconnecting = true;
+
+	// start the delay out as 2 seconds
+	let delayStart = 2000;
+	let attempt = 0;
+	const maxAttempts = 10;
+
+	while (!connected && attempt < maxAttempts) {
+		attempt++;
+		log.info(
+			`Reconnect attempt ${attempt}/${maxAttempts} in ${delayStart / 1000}s ...`,
+		);
+
+		await new Promise((res) => setTimeout(res, delayStart));
+
+		const serverUp = await checkHostnamePort(`${process.env.PROD_SERVER}:1433`);
+
+		if (!serverUp) {
+			delayStart = Math.min(delayStart * 2, 30000); // exponential backoff until up to 30000
+			return;
+		}
+
+		try {
+			pool2 = await sql.connect(gpSqlConfig);
+			reconnecting = false;
+			connected = true;
+			log.info(`${gpSqlConfig.server} is connected to ${gpSqlConfig.database}`);
+		} catch (error) {
+			delayStart = Math.min(delayStart * 2, 30000);
+			return returnFunc({
+				success: false,
+				level: "error",
+				module: "system",
+				subModule: "db",
+				message: "Failed to reconnect to the prod sql server.",
+				data: [error],
+				notify: false,
+			});
+		}
+	}
+
+	if (!connected) {
+		log.error(
+			{ notify: true },
+			"Max reconnect attempts reached on the prodSql server. Stopping retries.",
+		);
+
+		reconnecting = false;
+		// TODO: exit alert someone here
+	}
+};

backend/gpSql/gpSqlQuery.controller.ts

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+import { returnFunc } from "../utils/returnHelper.utils.js";
+import {
+	connected,
+	pool2,
+	reconnecting,
+	reconnectToSql,
+} from "./gpSqlConnection.controller.js";
+
+interface SqlError extends Error {
+	code?: string;
+	originalError?: {
+		info?: { message?: string };
+	};
+}
+
+/**
+ * Run a prod query
+ * just pass over the query as a string and the name of the query.
+ * Query should be like below.
+ *  * select * from AlplaPROD_test1.dbo.table
+ * You must use test1 always as it will be changed via query
+ */
+export const gpQuery = async (queryToRun: string, name: string) => {
+	if (!connected) {
+		reconnectToSql();
+
+		if (reconnecting) {
+			return returnFunc({
+				success: false,
+				level: "error",
+				module: "system",
+				subModule: "gpSql",
+				message: `The sql ${process.env.PROD_PLANT_TOKEN} is trying to reconnect already`,
+				data: [],
+				notify: false,
+			});
+		} else {
+			return returnFunc({
+				success: false,
+				level: "error",
+				module: "system",
+				subModule: "gpSql",
+				message: `${process.env.PROD_PLANT_TOKEN} is not connected, and failed to connect.`,
+				data: [],
+				notify: true,
+			});
+		}
+	}
+
+	//change to the correct server
+	const query = queryToRun.replaceAll(
+		"test1",
+		`${process.env.PROD_PLANT_TOKEN}`,
+	);
+
+	try {
+		const result = await pool2.request().query(query);
+		return {
+			success: true,
+			message: `Query results for: ${name}`,
+			data: result.recordset ?? [],
+		};
+	} catch (error: unknown) {
+		const err = error as SqlError;
+		if (err.code === "ETIMEOUT") {
+			return returnFunc({
+				success: false,
+				module: "system",
+				subModule: "gpSql",
+				level: "error",
+				message: `${name} did not run due to a timeout.`,
+				notify: false,
+				data: [],
+			});
+		}
+
+		if (err.code === "EREQUEST") {
+			return returnFunc({
+				success: false,
+				module: "system",
+				subModule: "gpSql",
+				level: "error",
+				message: `${name} encountered an error ${err.originalError?.info?.message || "undefined error"}`,
+				data: [],
+			});
+		}
+
+		return returnFunc({
+			success: false,
+			module: "system",
+			subModule: "gpSql",
+			level: "error",
+			message: `${name} encountered an unknown error.`,
+			data: [],
+		});
+	}
+};

backend/gpSql/gpSqlQuerySelector.utils.ts

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+import { readFileSync } from "node:fs";
+
+export type SqlGPQuery = {
+	query: string;
+	success: boolean;
+	message: string;
+};
+
+export const sqlGpQuerySelector = (name: string) => {
+	try {
+		const queryFile = readFileSync(
+			new URL(`../gpSql/queries/${name}.sql`, import.meta.url),
+			"utf8",
+		);
+
+		return {
+			success: true,
+			message: `Query for: ${name}`,
+			query: queryFile,
+		};
+	} catch (e) {
+		console.error(e);
+		return {
+			success: false,
+			message:
+				"Error getting the query file, please make sure you have the correct name.",
+		};
+	}
+};

backend/gpSql/gpSqlRestart.route.ts

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+import { Router } from "express";
+import { apiReturn } from "../utils/returnHelper.utils.js";
+import { closePool, connectGPSql } from "./gpSqlConnection.controller.js";
+
+const r = Router();
+
+r.post("/restart", async (_, res) => {
+	await closePool();
+
+	await new Promise((r) => setTimeout(r, 2000));
+
+	const connect = await connectGPSql();
+	apiReturn(res, {
+		success: connect.success,
+		level: connect.success ? "info" : "error",
+		module: "routes",
+		subModule: "prodSql",
+		message: "Sql Server has been restarted",
+		data: connect.data,
+		status: connect.success ? 200 : 400,
+	});
+});
+export default r;

backend/gpSql/gpSqlStart.route.ts

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+import { Router } from "express";
+import { apiReturn } from "../utils/returnHelper.utils.js";
+import { connectGPSql } from "./gpSqlConnection.controller.js";
+
+const r = Router();
+
+r.post("/start", async (_, res) => {
+	const connect = await connectGPSql();
+	apiReturn(res, {
+		success: connect.success,
+		level: connect.success ? "info" : "error",
+		module: "routes",
+		subModule: "prodSql",
+		message: connect.message,
+		data: connect.data,
+		status: connect.success ? 200 : 400,
+	});
+});
+
+export default r;

backend/gpSql/gpSqlStop.route.ts

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+import { Router } from "express";
+import { apiReturn } from "../utils/returnHelper.utils.js";
+import { closePool } from "./gpSqlConnection.controller.js";
+
+const r = Router();
+
+r.post("/stop", async (_, res) => {
+	const connect = await closePool();
+	apiReturn(res, {
+		success: connect.success,
+		level: connect.success ? "info" : "error",
+		module: "routes",
+		subModule: "prodSql",
+		message: connect.message,
+		data: connect.data,
+		status: connect.success ? 200 : 400,
+	});
+});
+
+export default r;

backend/gpSql/queries/reqCheck.sql

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+USE [ALPLA]
+
+SELECT Distinct r.[POPRequisitionNumber] as req, 
+r.[ApprovalStatus] as approvalStatus,
+r.[Requested By] requestedBy,
+format(t.[Created Date], 'yyyy-MM-dd') as  createdAt,
+format(r.[Requisition Date], 'MM/dd/yyyy') as expectedDate,
+r.[Requisition Amount] as glAccount,
+case when r.[Account Segment 2] is null or r.[Account Segment 2] = '' then '999' else cast(r.[Account Segment 2] as varchar) end as plant
+,t.Status as status
+,t.[Document Status] as docStatus
+,t.[Workflow Status] as reqState
+,CASE 
+    WHEN [Workflow Status] = 'Completed' 
+        THEN 'Pending APO convertion'
+    WHEN [Workflow Status] = 'Pending User Action' 
+         AND r.[ApprovalStatus] = 'Pending Approval' 
+        THEN 'Pending plant approver'
+   WHEN [Workflow Status] = '' 
+         AND r.[ApprovalStatus] = 'Not Submitted' 
+        THEN 'Req not submited'
+    ELSE 'Unknown reason' 
+END AS approvedStatus
+
+FROM [dbo].[PORequisitions] r  (nolock)
+
+
+
+left join 
+[dbo].[PurchaseRequisitions] as t (nolock) on
+t.[Requisition Number] = r.[POPRequisitionNumber]
+
+
+--where ApprovalStatus = 'Pending Approval'
+--and [Account Segment 2] = 80
+
+where r.POPRequisitionNumber in ([reqsToCheck])
+
+Order By r.POPRequisitionNumber