rename frontend to web and update contributing guide (#2509)

* rename frontend to web and update contributing guide

* rename this time

* fix build

* restructure rust code

* update documentation

* update descriptions

* Update CONTRIBUTING.md

Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

---------

Co-authored-by: Aiden McClelland <me@drbonez.dev>
Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>
Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

web/projects/ui/src/app/services/eos.service.ts

@@ -0,0 +1,60 @@
+import { Injectable } from '@angular/core'
+import { Emver } from '@start9labs/shared'
+import { BehaviorSubject, combineLatest } from 'rxjs'
+import { distinctUntilChanged, map } from 'rxjs/operators'
+import { MarketplaceEOS } from 'src/app/services/api/api.types'
+import { ApiService } from 'src/app/services/api/embassy-api.service'
+import { PatchDB } from 'patch-db-client'
+import { getServerInfo } from 'src/app/util/get-server-info'
+import { DataModel } from './patch-db/data-model'
+
+@Injectable({
+  providedIn: 'root',
+})
+export class EOSService {
+  eos?: MarketplaceEOS
+  updateAvailable$ = new BehaviorSubject<boolean>(false)
+
+  readonly updating$ = this.patch.watch$('server-info', 'status-info').pipe(
+    map(status => !!status['update-progress'] || status.updated),
+    distinctUntilChanged(),
+  )
+
+  readonly backingUp$ = this.patch
+    .watch$('server-info', 'status-info', 'backup-progress')
+    .pipe(
+      map(obj => !!obj),
+      distinctUntilChanged(),
+    )
+
+  readonly updatingOrBackingUp$ = combineLatest([
+    this.updating$,
+    this.backingUp$,
+  ]).pipe(
+    map(([updating, backingUp]) => {
+      return updating || backingUp
+    }),
+  )
+
+  readonly showUpdate$ = combineLatest([
+    this.updateAvailable$,
+    this.updating$,
+  ]).pipe(
+    map(([available, updating]) => {
+      return available && !updating
+    }),
+  )
+
+  constructor(
+    private readonly api: ApiService,
+    private readonly emver: Emver,
+    private readonly patch: PatchDB<DataModel>,
+  ) {}
+
+  async loadEos(): Promise<void> {
+    const { version } = await getServerInfo(this.patch)
+    this.eos = await this.api.getEos()
+    const updateAvailable = this.emver.compare(this.eos.version, version) === 1
+    this.updateAvailable$.next(updateAvailable)
+  }
+}