Worker refactor (#863)

- Parse variables before processing request to cut out code duplication
- Make the webpage a bit more fancy and use JS to show a local time
- Add some basic tests + CI workflow

.github/workflows/test-api.yaml

@@ -1,4 +1,4 @@
-name: Test API
+name: Test DragaliaAPI
 
 on:
   push:

.github/workflows/test-worker.yaml

@@ -0,0 +1,34 @@
+name: Test MaintenanceWorker
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - MaintenanceWorker/**
+
+jobs:
+  vitest:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: MaintenanceWorker
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Install dependencies
+        working-directory: MaintenanceWorker
+        run: pnpm install
+
+      - name: Build
+        working-directory: MaintenanceWorker
+        run: pnpm exec wrangler deploy --dry-run
+
+      - name: Test
+        working-directory: MaintenanceWorker
+        run: pnpm run test

MaintenanceWorker/README.md

@@ -4,11 +4,27 @@ This is a Cloudflare Worker written in Rust to show the in-game maintenance aler
 
 While the existing server can handle maintenance alerts [via MaintenanceOptions](https://github.com/SapiensAnatis/Dawnshard/blob/main/DragaliaAPI/DragaliaAPI/appsettings.json#L113), it cannot do this if it needs to be taken down entirely, or if the container host needs to be restarted. A Cloudflare worker allows us to return maintenance information regardless of the status of the API.
 
-The maintenance data is configured in `wrangler.toml`, e.g.
+The maintenance data is configured in `wrangler.toml`. Below is an example configuration. All values are required.
 
 ```toml
 [vars]
-MAINTENANCE_END_DATE = "2024-05-20T18:14:08Z"
+MAINTENANCE_END_DATE = "2024-05-20T18:14:08Z" # Must be ISO 8601 format.
 MAINTENANCE_TITLE = "Maintenance"
 MAINTENANCE_BODY = "Dawnshard is currently under maintenance\nto upgrade the server."
 ```
+
+## Development
+
+1. Install dependencies:
+
+```bash
+pnpm i
+```
+
+## Deployment to production
+
+2. Start the worker in development:
+
+```bash
+pnpm run
+```

MaintenanceWorker/package.json

@@ -1,11 +1,19 @@
 {
   "name": "maintenance-worker",
+  "packageManager": "[email protected]",
   "version": "1.0.0",
   "description": "Cloudflare worker for showing the maintenance screen even if the origin server is down",
   "devDependencies": {
+    "@msgpack/msgpack": "3.0.0-beta2",
+    "@types/jest": "29.5.12",
+    "miniflare": "3.20240605.0",
+    "vitest": "1.6.0",
+    "vitest-environment-miniflare": "2.14.2",
     "wrangler": "3.57.0"
   },
+  "type": "module",
   "scripts": {
-    "start": "npx wrangler dev"
+    "start": "pnpm exec wrangler dev",
+    "test": "pnpm exec vitest run"
   }
 }