Fix sitemap.xml dynamic generation

.gitignore

@@ -35,5 +35,3 @@ yarn-error.log*
 next-env.d.ts
 
 .env
-
-public/sitemap.xml

.npmrc

@@ -1 +0,0 @@
-enable-pre-post-scripts=true

next-sitemap.config.js

@@ -1,12 +0,0 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
-const groups = require('./src/shared/data/groups.json')
-
-/** @type {import('next-sitemap').IConfig} */
-module.exports = {
-  siteUrl: 'https://kspsuti.ru',
-  generateRobotsTxt: false,
-  generateIndexSitemap: false,
-  changefreq: 'weekly',
-  exclude: ['/'],
-  additionalPaths: async () => Object.keys(groups).map(groupName => `/${groupName}`)
-}

package.json

@@ -5,7 +5,6 @@
   "scripts": {
     "dev": "next dev",
     "build": "next build",
-    "postbuild": "next-sitemap",
     "start": "next start",
     "lint": "next lint"
   },

public/robots.txt

@@ -1,2 +1,4 @@
 User-agent: *
 Disallow:
+
+Sitemap: https://kspsuti.ru/sitemap.xml

src/pages/[group].tsx

@@ -5,7 +5,7 @@ import { getSchedule } from '@/app/agregator/schedule'
 import { NextSerialized, nextDeserializer, nextSerialized } from '@/app/utils/date-serializer'
 import { NavBar } from '@/widgets/navbar'
 import { LastUpdateAt } from '@/entities/last-update-at'
-import groups from '@/shared/data/groups.json'
+import { groups } from '@/shared/data/groups'
 import crypto from 'crypto'
 import React from 'react'
 import { getDayOfWeek } from '@/shared/utils'
@@ -61,7 +61,6 @@ export async function getServerSideProps(context: GetServerSidePropsContext<{ gr
   if (group && Object.hasOwn(groups, group) && group in groups) {
     let schedule
     let parsedAt
-    const groupName = group as keyof typeof groups
 
     const cachedSchedule = cachedSchedules.get(group)
     if (cachedSchedule?.lastFetched && Date.now() - cachedSchedule.lastFetched.getTime() < maxCacheDurationInMS) {
@@ -69,10 +68,9 @@ export async function getServerSideProps(context: GetServerSidePropsContext<{ gr
       parsedAt = cachedSchedule.lastFetched
     } else {
       try {
-        const group = groups[groupName] as [number, string]
-        schedule = await getSchedule(...group)
+        schedule = await getSchedule(...groups[group])
         parsedAt = new Date()
-        cachedSchedules.set(groupName, { lastFetched: new Date(), results: schedule })
+        cachedSchedules.set(group, { lastFetched: new Date(), results: schedule })
       } catch(e) {
         if (cachedSchedule?.lastFetched) {
           schedule = cachedSchedule.results
@@ -105,7 +103,7 @@ export async function getServerSideProps(context: GetServerSidePropsContext<{ gr
       props: nextSerialized({
         schedule: schedule,
         parsedAt: parsedAt,
-        group: groups[groupName][1]
+        group: groups[group][1]
       })
     }
   } else {

src/pages/sitemap.xml/index.tsx

@@ -0,0 +1,19 @@
+import { ISitemapField, getServerSideSitemapLegacy } from 'next-sitemap'
+import { GetServerSideProps } from 'next'
+import { groups } from '@/shared/data/groups'
+
+export const getServerSideProps: GetServerSideProps = async (ctx) => {
+  const siteURL = 'https://kspsuti.ru'
+
+  const fields = Object.keys(groups).map<ISitemapField>(group => (
+    {
+      loc: `${siteURL}/${group}`,
+      changefreq: 'weekly',
+      priority: 0.8
+    }
+  ))
+
+  return getServerSideSitemapLegacy(ctx, fields)
+}
+
+export default function Sitemap() { }

src/shared/data/groups.json

@@ -1,4 +0,0 @@
-{
-  "ps7": [146, "ПС-7"],
-  "pks35k": [78, "ПКС-35к"]
-}

src/shared/data/groups.ts

@@ -0,0 +1,4 @@
+export const groups: { [group: string]: [number, string] } = {
+  ps7: [146, 'ПС-7'],
+  pks35k: [78, 'ПКС-35к']
+}