refactor: extract appcenter mod.ts

Author: JounQin

main.ts

@@ -1,78 +1,5 @@
 import { serve } from 'https://deno.land/std@0.137.0/http/server.ts';
 
-export interface ReleaseInfo {
-  id: string;
-  version: string;
-  short_version: string;
-}
+import { appcenter } from './mod.ts';
 
-export interface DownloadInfo {
-  download_url: string;
-}
-
-const REDIRECT = 302;
-const NOT_FOUND = 404;
-
-async function handler(req: Request): Promise<Response> {
-  let url = new URL(req.url).pathname;
-
-  if (!url || url === '/') {
-    url = '/index.html';
-  }
-
-  if (/\.[a-z]+[a-z\d]*$/.test(url)) {
-    return new Response(await Deno.readFile(`./public${url}`));
-  }
-
-  const matched = /\/([\w-]+)\/([\w-]+)\/([.\w]+)/.exec(url);
-
-  if (!matched) {
-    return new Response('Not Found', {
-      status: NOT_FOUND,
-    });
-  }
-
-  const [, owner, app, version] = matched;
-
-  const releasesUrl =
-    `https://install.appcenter.ms/api/v0.1/apps/${owner}/${app}/distribution_groups/public/public_releases`;
-
-  console.log(`Fetching ${releasesUrl}`);
-
-  const releases: ReleaseInfo[] = await fetch(releasesUrl).then((res) =>
-    res.ok ? res.json() : []
-  );
-
-  const found = releases.find(
-    (it) => it.version === version || it.short_version === version,
-  );
-
-  if (!found) {
-    return new Response(
-      `No matched version ${version} found for ${owner}/${app}`,
-      {
-        status: NOT_FOUND,
-      },
-    );
-  }
-
-  const releaseUrl =
-    `https://install.appcenter.ms/api/v0.1/apps/${owner}/${app}/distribution_groups/public/releases/${found.id}`;
-
-  console.log(`Fetching ${releaseUrl}`);
-
-  const { download_url: downloadUrl }: DownloadInfo = await fetch(
-    releaseUrl,
-  ).then((res) => res.json());
-
-  console.log(`Redirect to ${downloadUrl}`);
-
-  return new Response(null, {
-    status: REDIRECT,
-    headers: {
-      Location: downloadUrl,
-    },
-  });
-}
-
-serve(handler);
+serve(appcenter);

mod.ts

@@ -0,0 +1,74 @@
+export interface ReleaseInfo {
+  id: string;
+  version: string;
+  short_version: string;
+}
+
+export interface DownloadInfo {
+  download_url: string;
+}
+
+export const REDIRECT = 302;
+export const NOT_FOUND = 404;
+
+export async function appcenter(req: Request): Promise<Response> {
+  let url = new URL(req.url).pathname;
+
+  if (!url || url === '/') {
+    url = '/index.html';
+  }
+
+  if (/\.[a-z]+[a-z\d]*$/.test(url)) {
+    return new Response(await Deno.readFile(`./public${url}`));
+  }
+
+  const matched = /\/([\w-]+)\/([\w-]+)\/([.\w]+)/.exec(url);
+
+  if (!matched) {
+    return new Response('Not Found', {
+      status: NOT_FOUND,
+    });
+  }
+
+  const [, owner, app, version] = matched;
+
+  const releasesUrl =
+    `https://install.appcenter.ms/api/v0.1/apps/${owner}/${app}/distribution_groups/public/public_releases`;
+
+  console.log(`Fetching ${releasesUrl}`);
+
+  const releases: ReleaseInfo[] = await fetch(releasesUrl).then((res) =>
+    res.ok ? res.json() : []
+  );
+
+  const found = releases.find(
+    (it) => it.version === version || it.short_version === version,
+  );
+
+  if (!found) {
+    return new Response(
+      `No matched version ${version} found for ${owner}/${app}`,
+      {
+        status: NOT_FOUND,
+      },
+    );
+  }
+
+  const releaseUrl =
+    `https://install.appcenter.ms/api/v0.1/apps/${owner}/${app}/distribution_groups/public/releases/${found.id}`;
+
+  console.log(`Fetching ${releaseUrl}`);
+
+  const { download_url: downloadUrl }: DownloadInfo = await fetch(
+    releaseUrl,
+  ).then((res) => res.json());
+
+  console.log(`Redirect to ${downloadUrl}`);
+
+  return new Response(null, {
+    status: REDIRECT,
+    headers: {
+      Location: downloadUrl,
+    },
+  });
+}

version.ts

@@ -0,0 +1 @@
+export const VERSION = '0.0.0';