Management UI

Attempt 2 of a management ui.

manager/src/lib/stacks.ts

@@ -0,0 +1,74 @@
+import { readdir, readFile, access } from "node:fs/promises";
+import path from "node:path";
+import { composeStatus, type StackRunState } from "./docker";
+import { RESERVED_SLUGS } from "./slug";
+
+export { isValidSlug, suggestSlug } from "./slug";
+
+export interface BusinessStackSummary {
+  slug: string;
+  domain: string | null;
+  containerName: string;
+  status: StackRunState;
+}
+
+export function stacksRoot(): string {
+  const dir = process.env.STACKS_DIR;
+  if (!dir) throw new Error("STACKS_DIR must be set.");
+  return dir;
+}
+
+export function stackDir(slug: string): string {
+  return path.join(stacksRoot(), slug);
+}
+
+/** Only ever reads the DOMAIN line — deliberately never returns the rest of a business's .env (database password, AUTH_SECRET, etc.) to the UI. */
+async function readDomain(envPath: string): Promise<string | null> {
+  try {
+    const content = await readFile(envPath, "utf8");
+    for (const line of content.split("\n")) {
+      const match = /^DOMAIN\s*=\s*"?([^"\n]*)"?\s*$/.exec(line.trim());
+      if (match?.[1]) return match[1];
+    }
+    return null;
+  } catch {
+    return null;
+  }
+}
+
+export async function listBusinessStacks(): Promise<BusinessStackSummary[]> {
+  const root = stacksRoot();
+  let entries: string[];
+  try {
+    entries = await readdir(root);
+  } catch {
+    return [];
+  }
+
+  const stacks: BusinessStackSummary[] = [];
+  for (const slug of entries) {
+    if (RESERVED_SLUGS.has(slug)) continue;
+    const dir = path.join(root, slug);
+    const composePath = path.join(dir, "compose.yaml");
+    try {
+      await access(composePath);
+    } catch {
+      continue;
+    }
+
+    const domain = await readDomain(path.join(dir, ".env"));
+    const status = await composeStatus(dir);
+    stacks.push({ slug, domain, containerName: `next-chair-${slug}`, status });
+  }
+
+  return stacks.sort((a, b) => a.slug.localeCompare(b.slug));
+}
+
+export async function stackExists(slug: string): Promise<boolean> {
+  try {
+    await access(path.join(stackDir(slug), "compose.yaml"));
+    return true;
+  } catch {
+    return false;
+  }
+}