1import * as Alchemy from "alchemy";
2import * as Hetzner from "alchemy/Hetzner";
3import * as Test from "alchemy/Test/Bun";
4import { expect } from "bun:test";
5import * as Console from "effect/Console";
6import * as Data from "effect/Data";
7import * as Effect from "effect/Effect";
8import * as Schedule from "effect/Schedule";
9import Stack from "../alchemy.run.ts";
10
11// A fresh Hetzner deployment (and the Hetzner Server behind it) can serve
12// transient 404/5xx responses while it propagates. `Test.getWhenReady`
13// fails on that cold-start window and retries until the site serves a
14// real response.
15const { getWhenReady } = Test;
16
17class AssetNotReady extends Data.TaggedError("AssetNotReady")<{
18 body: string;
19}> {}
20
21// While the asset manifest and Hetzner edge caches are still
22// propagating, a 200 body can be stale — the status alone can't
23// distinguish "not yet" from "served", so retry until the body matches.
24const getBodyWhenReady = (url: string, expected: string) =>
25 Effect.gen(function* () {
26 const res = yield* getWhenReady(url);
27 expect(res.status).toBe(200);
28 const body = yield* res.text;
29 if (!body.includes(expected)) {
30 return yield* Effect.fail(new AssetNotReady({ body }));
31 }
32 return body;
33 }).pipe(
34 Effect.retry({
35 while: (error) => error instanceof AssetNotReady,
36 schedule: Schedule.max([
37 Schedule.min([
38 Schedule.exponential("500 millis"),
39 Schedule.spaced("3 seconds"),
40 ]),
41 Schedule.recurs(20),
42 ]),
43 }),
44 );
45
46const hasCreds = !!process.env.HCLOUD_TOKEN;
47
48const { test, beforeAll, afterAll, deploy, destroy } = Test.make({
49 providers: Hetzner.providers(),
50 state: Alchemy.localState(),
51 profile: process.env.ALCHEMY_PROFILE,
52});
53
54// The first deploy runs the full Astro build AND creates a Hetzner
55// distribution (~5-10 minutes), so give the hook far more headroom than
56// the default 120s.
57if (!hasCreds) {
58 test.skip("skipped without HCLOUD_TOKEN", Effect.void);
59} else {
60 const stack = beforeAll(deploy(Stack).pipe(Effect.tap(Console.log)), {
61 timeout: 600_000,
62 });
63 // Deleting the Hetzner deployment takes several minutes too.
64 afterAll.skipIf(!!process.env.NO_DESTROY)(destroy(Stack), {
65 timeout: 600_000,
66 });
67
68 const base = Effect.map(stack, ({ url }) => {
69 if (!url) throw new Error("expected the site to expose a url");
70 return String(url).replace(/\/+$/, "");
71 });
72
73 test(
74 "deploys and exposes a url",
75 Effect.gen(function* () {
76 const { url } = yield* stack;
77 expect(url).toBeString();
78 }),
79 { timeout: 180_000 },
80 );
81
82 test(
83 "serves the server-rendered home page",
84 Effect.gen(function* () {
85 const url = yield* base;
86 const res = yield* getWhenReady(url);
87 expect(res.status).toBe(200);
88 const html = yield* res.text;
89 // The `GREETING` env value from alchemy.run.ts, read via
90 // `process.env` in the page frontmatter — proves the Hetzner Server
91 // rendered it at request time.
92 expect(html).toContain("Hello from Astro on Hetzner!");
93 expect(html).toContain("server-rendered in a Hetzner Server");
94 }),
95 { timeout: 180_000 },
96 );
97
98 test(
99 "serves the prerendered about page",
100 Effect.gen(function* () {
101 const url = yield* base;
102 const res = yield* getWhenReady(`${url}/about/`);
103 expect(res.status).toBe(200);
104 }),
105 { timeout: 180_000 },
106 );
107
108 test(
109 "compiles tailwind from astro.config.ts",
110 Effect.gen(function* () {
111 const url = yield* base;
112 // The utility class in the markup proves the page shipped with Tailwind
113 // classes; wait until the deployed HTML includes it.
114 const html = yield* getBodyWhenReady(url, "text-3xl");
115
116 // Astro either links an external compiled stylesheet or inlines small
117 // ones as a <style> block — accept both, but the compiled rule for the
118 // utility must be served either way. That rule only exists if the
119 // @tailwindcss/vite plugin from the project's own astro.config.ts ran.
120 const link = html.match(
121 /<link[^>]*rel="stylesheet"[^>]*href="([^"]+)"[^>]*>/,
122 );
123 if (link) {
124 const href = link[1]!;
125 const cssUrl = href.startsWith("http")
126 ? href
127 : `${url}${href.startsWith("/") ? "" : "/"}${href}`;
128 const css = yield* getBodyWhenReady(cssUrl, ".text-3xl");
129 expect(css).toContain(".text-3xl");
130 } else {
131 const style = html.match(/<style[^>]*>([\s\S]*?)<\/style>/);
132 expect(style).not.toBeNull();
133 expect(style![1]).toContain(".text-3xl");
134 }
135 }),
136 { timeout: 180_000 },
137 );
138
139 test(
140 "serves a static asset from public/",
141 Effect.gen(function* () {
142 const url = yield* base;
143 const body = yield* getBodyWhenReady(
144 `${url}/robots.txt`,
145 "User-agent: *",
146 );
147 expect(body).toContain("User-agent: *");
148 }),
149 { timeout: 180_000 },
150 );
151}