// Direct-upload deploy to Statichost (https://www.statichost.eu/docs/direct-upload/).
//
// Uploads the zip produced by the `zip` task (diffuse.zip) to
// <builder-host>/<site-name>/drop — the same endpoint the official `shcli`
// tool uses. The zip already contains the *contents* of the public directory
// (not the directory itself), as the docs require.
//
// Usage:
//   deno task deploy:statichost <site-name>
//
// Environment variables:
//   STATICHOST_APIKEY   Required. API token from https://builder.statichost.eu/account
//   STATICHOST_SITE     Optional. Site name, used when no argument is given.
//   STATICHOST_BUILDER  Optional. Builder host, defaults to https://builder.statichost.eu

import { load } from "@std/dotenv";

const dotenv = await load();

// `@std/dotenv`'s `load()` returns only the .env file values (no merge with
// the process environment), so check both: the process env first (matching
// the shcli docs' `export STATICHOST_APIKEY=...`), then the .env file (the
// convention used elsewhere in this repo, eg. tasks/deploy/ipfs.ts).
const env = {
  ...dotenv,
  STATICHOST_APIKEY: Deno.env.get("STATICHOST_APIKEY") ?? dotenv.STATICHOST_APIKEY,
  STATICHOST_SITE: Deno.env.get("STATICHOST_SITE") ?? dotenv.STATICHOST_SITE,
  STATICHOST_BUILDER: Deno.env.get("STATICHOST_BUILDER") ?? dotenv.STATICHOST_BUILDER,
};

const apiKey = env.STATICHOST_APIKEY;
if (!apiKey) {
  console.error("❌ STATICHOST_APIKEY is not set.");
  console.error(
    "   Create an API token at https://builder.statichost.eu/account and set it as an env var.",
  );
  Deno.exit(1);
}

const siteName = Deno.args[0] ?? env.STATICHOST_SITE;
if (!siteName) {
  console.error("❌ No site name provided.");
  console.error("   Usage: deno task deploy:statichost <site-name>");
  Deno.exit(1);
}

const builderHost = (env.STATICHOST_BUILDER ?? "https://builder.statichost.eu")
  .replace(/\/+$/, "");

// Fail fast if the zip is missing — it's produced by the `zip` task, which
// deploy:statichost runs before this script.
try {
  const stat = Deno.statSync("diffuse.zip");
  if (!stat.isFile) throw new Error("diffuse.zip is not a file");
} catch {
  console.error("❌ diffuse.zip does not exist. Create it first: deno task zip");
  Deno.exit(1);
}

// Stream the zip to the upload endpoint, like shcli's
// `curl --fail-with-body --data-binary @statichost.zip`. Consuming
// `file.readable` as the body closes the file when the request completes.
const file = Deno.openSync("diffuse.zip");
const response = await fetch(`${builderHost}/${siteName}/drop`, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/zip",
    "Accept": "text/plain",
  },
  body: file.readable,
});

const body = await response.text();

if (!response.ok) {
  console.error(`❌ Upload failed: ${response.status} ${response.statusText}`);
  if (body) console.error(body);
  Deno.exit(1);
}

if (body) console.log(body);
console.log(`✅️ Uploaded diffuse.zip to ${siteName}.statichost.eu`);