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1import { Hono } from "hono";
2import { cors } from "hono/cors";
3import { createWorker } from "@atmo-dev/contrail/worker";
4import { Contrail } from "@atmo-dev/contrail";
5import { config } from "./contrail.config.js";
6import { lexicons } from "../lexicons/generated/index.js";
7import { LANDING_PAGE } from "./landing-page.js";
8import { StrataContainer } from "./container.js";
9
10// ─── Env ────────────────────────────────────────────────────────────
11
12interface Env {
13 DB: D1Database;
14 VAULT_BUCKET: R2Bucket;
15 CARRY_BUCKET: R2Bucket;
16 STRATA_CONTAINER: DurableObjectNamespace;
17}
18
19// ─── Contrail setup ─────────────────────────────────────────────────
20
21const contrailWorker = createWorker(config, { lexicons });
22const contrail = new Contrail(config);
23let contrailReady = false;
24
25async function ensureContrailReady(db: D1Database): Promise<void> {
26 if (contrailReady) return;
27 await contrail.init(db);
28 contrailReady = true;
29}
30
31// ─── Island detection (connected components) ────────────────────────
32//
33// Load all connections, build an undirected graph, find connected
34// components via BFS. Each component is an "island" — a cluster of
35// linked URLs that form a constellation in the knowledge graph.
36
37interface Island {
38 id: string;
39 vertices: string[];
40 edges: Array<{
41 uri: string;
42 did: string;
43 source: string;
44 target: string;
45 connectionType: string;
46 note: string;
47 handle?: string | null;
48 }>;
49}
50
51async function detectIslands(db: D1Database): Promise<Island[]> {
52 await ensureContrailReady(db);
53
54 // Load all connections
55 const rows = await db
56 .prepare(
57 `SELECT r.record, r.did, r.rkey, i.handle
58 FROM records_connection r
59 LEFT JOIN identities i ON r.did = i.did
60 ORDER BY r.time_us DESC`,
61 )
62 .all<{ record: string; did: string; rkey: string; handle: string | null }>();
63
64 // Build adjacency list
65 const adj = new Map<string, Set<string>>();
66 const edges: Island["edges"] = [];
67
68 for (const row of rows.results || []) {
69 try {
70 const value = JSON.parse(row.record);
71 const source = value.source as string;
72 const target = value.target as string;
73 if (!source || !target) continue;
74
75 if (!adj.has(source)) adj.set(source, new Set());
76 if (!adj.has(target)) adj.set(target, new Set());
77 adj.get(source)!.add(target);
78 adj.get(target)!.add(source);
79
80 edges.push({
81 uri: `at://${row.did}/network.cosmik.connection/${row.rkey}`,
82 did: row.did,
83 source,
84 target,
85 connectionType: value.connectionType || "relates",
86 note: value.note || "",
87 handle: row.handle,
88 });
89 } catch {}
90 }
91
92 // BFS to find connected components
93 const visited = new Set<string>();
94 const islands: Island[] = [];
95
96 for (const node of adj.keys()) {
97 if (visited.has(node)) continue;
98
99 const component: string[] = [];
100 const queue = [node];
101 while (queue.length > 0) {
102 const current = queue.shift()!;
103 if (visited.has(current)) continue;
104 visited.add(current);
105 component.push(current);
106
107 for (const neighbor of adj.get(current) || []) {
108 if (!visited.has(neighbor)) queue.push(neighbor);
109 }
110 }
111
112 // Only include edges where both endpoints are in this component
113 const componentSet = new Set(component);
114 const componentEdges = edges.filter(
115 e => componentSet.has(e.source) && componentSet.has(e.target),
116 );
117
118 // Stable ID: truncated SHA-256 of the lexicographic minimum vertex
119 const lexmin = component.sort()[0];
120 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
121 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
122
123 islands.push({
124 id,
125 vertices: component,
126 edges: componentEdges,
127 });
128 }
129
130 // Sort by size descending
131 islands.sort((a, b) => b.vertices.length - a.vertices.length);
132 return islands;
133}
134
135// ─── Resolve vertex metadata (batched) ──────────────────────────────
136//
137// Bulk queries instead of N+1 per vertex. Loads all cards and citations
138// matching the given URIs in a few chunked queries.
139
140async function resolveVertexMeta(
141 db: D1Database,
142 uris: string[],
143): Promise<Map<string, { title: string; description: string; type: string }>> {
144 const meta = new Map<string, { title: string; description: string; type: string }>();
145 for (const uri of uris) {
146 meta.set(uri, { title: uri, description: "", type: "unknown" });
147 }
148
149 const httpUris = uris.filter(u => u.startsWith("http"));
150 const atUris = uris.filter(u => u.startsWith("at://"));
151 const CHUNK = 50;
152
153 // ── Resolve HTTP URIs (existing logic) ──
154
155 // Batch card lookup
156 for (let i = 0; i < httpUris.length; i += CHUNK) {
157 const chunk = httpUris.slice(i, i + CHUNK);
158 const placeholders = chunk.map(() => "?").join(",");
159 const rows = await db
160 .prepare(
161 `SELECT record FROM records_card
162 WHERE json_extract(record, '$.content.url') IN (${placeholders})`,
163 )
164 .bind(...chunk)
165 .all<{ record: string }>();
166
167 for (const row of rows.results || []) {
168 try {
169 const card = JSON.parse(row.record);
170 const url = card?.content?.url;
171 if (!url || !meta.has(url)) continue;
172 const m = card.content.metadata;
173 if (m?.title || m?.description) {
174 meta.set(url, {
175 title: m.title || url,
176 description: m.description || "",
177 type: card.type === "URL" ? "url" : "note",
178 });
179 }
180 } catch {}
181 }
182 }
183
184 // Batch citation lookup (overrides card data if found)
185 for (let i = 0; i < httpUris.length; i += CHUNK) {
186 const chunk = httpUris.slice(i, i + CHUNK);
187 const placeholders = chunk.map(() => "?").join(",");
188 const rows = await db
189 .prepare(
190 `SELECT record FROM records_citation
191 WHERE json_extract(record, '$.url') IN (${placeholders})`,
192 )
193 .bind(...chunk)
194 .all<{ record: string }>();
195
196 for (const row of rows.results || []) {
197 try {
198 const citation = JSON.parse(row.record);
199 const url = citation.url;
200 if (!url || !meta.has(url)) continue;
201 if (citation.title) {
202 const existing = meta.get(url)!;
203 meta.set(url, {
204 title: citation.title,
205 description: citation.takeaway || existing.description,
206 type: "citation",
207 });
208 }
209 } catch {}
210 }
211 }
212
213 // ── Resolve AT URIs ──
214
215 // Batch card lookup by AT URI
216 for (let i = 0; i < atUris.length; i += CHUNK) {
217 const chunk = atUris.slice(i, i + CHUNK);
218 const placeholders = chunk.map(() => "?").join(",");
219 const rows = await db
220 .prepare(`SELECT uri, record FROM records_card WHERE uri IN (${placeholders})`)
221 .bind(...chunk)
222 .all<{ uri: string; record: string }>();
223
224 for (const row of rows.results || []) {
225 try {
226 const card = JSON.parse(row.record);
227 const m = card?.content?.metadata;
228 const url = card?.content?.url;
229 if (meta.has(row.uri)) {
230 meta.set(row.uri, {
231 title: m?.title || url || row.uri,
232 description: m?.description || "",
233 type: "card",
234 });
235 }
236 } catch {}
237 }
238 }
239
240 // Batch collection lookup by AT URI
241 for (let i = 0; i < atUris.length; i += CHUNK) {
242 const chunk = atUris.slice(i, i + CHUNK);
243 const placeholders = chunk.map(() => "?").join(",");
244 const rows = await db
245 .prepare(`SELECT uri, record FROM records_collection WHERE uri IN (${placeholders})`)
246 .bind(...chunk)
247 .all<{ uri: string; record: string }>();
248
249 for (const row of rows.results || []) {
250 try {
251 const coll = JSON.parse(row.record);
252 if (meta.has(row.uri)) {
253 meta.set(row.uri, {
254 title: coll.name || row.uri,
255 description: coll.description || "",
256 type: "collection",
257 });
258 }
259 } catch {}
260 }
261 }
262
263 return meta;
264}
265
266// ─── Derive island from lexmin ────────────────────────────────────
267//
268// Given a lexmin vertex (canonical component reference), derive the
269// connected component by traversing network.cosmik.connection records.
270
271async function deriveIsland(
272 db: D1Database,
273 seed: string,
274): Promise<Island | null> {
275 await ensureContrailReady(db);
276
277 // BFS in application code — recursive CTE OOMs in D1 due to cross join
278 const visited = new Set<string>();
279 const queue = [seed];
280 const allEdges: Array<{
281 uri: string; did: string; rkey: string;
282 source: string; target: string; connectionType: string;
283 note: string; handle: string | null;
284 }> = [];
285
286 while (queue.length > 0) {
287 // Drain the current queue into a batch
288 const batch = queue.splice(0, 50);
289 const toQuery = batch.filter(v => !visited.has(v));
290 if (toQuery.length === 0) continue;
291
292 // Mark visited
293 for (const v of toQuery) visited.add(v);
294
295 // Query connections where any of these vertices are source or target
296 const placeholders = toQuery.map(() => "?").join(",");
297 const rows = await db
298 .prepare(
299 `SELECT r.record, r.did, r.rkey, i.handle
300 FROM records_connection r
301 LEFT JOIN identities i ON r.did = i.did
302 WHERE json_extract(r.record, '$.source') IN (${placeholders})
303 OR json_extract(r.record, '$.target') IN (${placeholders})`,
304 )
305 .bind(...toQuery, ...toQuery)
306 .all<{ record: string; did: string; rkey: string; handle: string | null }>();
307
308 for (const row of rows.results || []) {
309 try {
310 const value = JSON.parse(row.record);
311 const source = value.source as string;
312 const target = value.target as string;
313 if (!source || !target) continue;
314
315 // Collect edge
316 const edgeKey = `${source}|${target}|${row.rkey}`;
317 allEdges.push({
318 uri: `at://${row.did}/network.cosmik.connection/${row.rkey}`,
319 did: row.did,
320 rkey: row.rkey,
321 source,
322 target,
323 connectionType: value.connectionType || "relates",
324 note: value.note || "",
325 handle: row.handle,
326 });
327
328 // Enqueue unvisited neighbors
329 if (!visited.has(source)) queue.push(source);
330 if (!visited.has(target)) queue.push(target);
331 } catch {}
332 }
333 }
334
335 if (visited.size === 0) return null;
336
337 const vertices = [...visited];
338
339 // Filter edges to only those with both endpoints in the component
340 const vertexSet = new Set(vertices);
341 const edges: Island["edges"] = [];
342 const seenEdges = new Set<string>();
343 for (const e of allEdges) {
344 if (!vertexSet.has(e.source) || !vertexSet.has(e.target)) continue;
345 const edgeKey = `${e.source}|${e.target}|${e.rkey}`;
346 if (seenEdges.has(edgeKey)) continue;
347 seenEdges.add(edgeKey);
348 edges.push({
349 uri: e.uri,
350 did: e.did,
351 source: e.source,
352 target: e.target,
353 connectionType: e.connectionType,
354 note: e.note,
355 handle: e.handle,
356 });
357 }
358
359 // Compute stable ID from lexmin
360 const sortedVertices = [...vertices].sort();
361 const actualLexmin = sortedVertices[0];
362 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(actualLexmin));
363 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
364
365 return { id, vertices, edges };
366}
367
368// ─── List strata islands from records_strata ──────────────────────
369
370// ─── Hono app ───────────────────────────────────────────────────────
371
372let app: Hono<{ Bindings: Env }> | null = null;
373
374function buildApp(env: Env): Hono<{ Bindings: Env }> {
375 const app = new Hono<{ Bindings: Env }>();
376 const db = env.DB;
377
378 app.use("*", cors());
379
380 // Landing page — strata records feed
381 app.get("/", async (c) => {
382 // Just load summaries for the landing page — client-side will fetch full data
383 let islandsJson = "[]";
384 try {
385 await ensureContrailReady(db);
386 const rows = await db
387 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT 10")
388 .all<{ uri: string; record: string }>();
389
390 const islands: any[] = [];
391 for (const row of rows.results || []) {
392 try {
393 const rec = JSON.parse(row.record);
394 const lexmin = rec.source?.uri;
395 if (!lexmin) continue;
396 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
397 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
398 islands.push({
399 id,
400 lexmin,
401 title: rec.analysis?.title || null,
402 recordUri: row.uri,
403 });
404 } catch {}
405 }
406 islandsJson = JSON.stringify(islands);
407 } catch (e) {
408 console.error("Failed to load islands:", e);
409 }
410
411 const page = LANDING_PAGE.replace(
412 "</head>",
413 `<script>window.__ISLANDS__=${islandsJson};</script></head>`,
414 );
415 return c.html(page);
416 });
417
418 // ── Islands API ──────────────────────────────────────────────────
419
420 app.get("/xrpc/org.latha.strata.getIslands", async (c) => {
421 const limit = Math.min(parseInt(c.req.query("limit") || "50"), 100);
422 await ensureContrailReady(db);
423
424 const rows = await db
425 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT ?")
426 .bind(limit)
427 .all<{ uri: string; record: string }>();
428
429 const islands: any[] = [];
430 for (const row of rows.results || []) {
431 try {
432 const rec = JSON.parse(row.record);
433 const lexmin = rec.source?.uri;
434 if (!lexmin) continue;
435
436 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
437 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
438
439 // Build graph directly from embedded connections — no D1 lookups needed
440 const connections: any[] = rec.connections || [];
441 const vertexSet = new Set<string>();
442 const edges: any[] = [];
443
444 for (const conn of connections) {
445 if (typeof conn === "object" && conn.source && conn.target) {
446 vertexSet.add(conn.source);
447 vertexSet.add(conn.target);
448 edges.push(conn);
449 }
450 }
451
452 const vertices = [...vertexSet].sort();
453 const vertexMeta = Object.fromEntries(await resolveVertexMeta(db, vertices));
454
455 const analysis = rec.analysis || {};
456 islands.push({
457 id, lexmin, vertices, edges, vertexMeta,
458 title: analysis.title || null,
459 strata: analysis.synthesis ? {
460 prose: analysis.synthesis || "", title: analysis.title || "",
461 themes: analysis.themes || [],
462 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
463 tensions: analysis.tensions || [],
464 open_questions: analysis.openQuestions || [],
465 synthesis: analysis.synthesis || "",
466 } : null,
467 recordUri: row.uri,
468 });
469 } catch {}
470 }
471
472 return c.json({ islands });
473 });
474
475 // ── Get single island by ID or AT URI ────────────────────────────
476
477 app.get("/xrpc/org.latha.strata.getIsland", async (c) => {
478 const id = c.req.query("id");
479 if (!id) {
480 return c.json({ error: "MissingRequiredParameter", message: "id is required" }, 400);
481 }
482
483 await ensureContrailReady(db);
484
485 // If it's an AT URI, look up the strata record and derive from its lexmin
486 if (id.startsWith("at://")) {
487 const row = await db
488 .prepare("SELECT uri, record FROM records_strata WHERE uri = ?")
489 .bind(id)
490 .first<{ uri: string; record: string }>();
491
492 if (!row) {
493 return c.json({ error: "RecordNotFound" }, 404);
494 }
495
496 const rec = JSON.parse(row.record);
497 const lexmin = rec.source?.uri;
498 if (!lexmin) {
499 return c.json({ error: "InvalidRecord" }, 400);
500 }
501
502 const island = await deriveIsland(db, lexmin);
503 if (!island) {
504 return c.json({ error: "IslandNotFound" }, 404);
505 }
506
507 const meta = await resolveVertexMeta(db, island.vertices);
508 const analysis = rec.analysis || {};
509
510 return c.json({
511 island: {
512 ...island,
513 lexmin: island.vertices.slice().sort()[0],
514 vertexMeta: Object.fromEntries(meta),
515 summary: analysis.title || null,
516 strata: {
517 prose: analysis.synthesis || "",
518 title: analysis.title || "",
519 themes: analysis.themes || [],
520 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
521 tensions: analysis.tensions || [],
522 open_questions: analysis.openQuestions || [],
523 synthesis: analysis.synthesis || "",
524 },
525 },
526 recordUri: row.uri,
527 });
528 }
529
530 // Stable ID — derive from lexmin by reverse-lookup
531 // Find the strata record whose lexmin hashes to this ID
532 const strataRows = await db
533 .prepare("SELECT uri, record FROM records_strata")
534 .all<{ uri: string; record: string }>();
535
536 for (const row of strataRows.results || []) {
537 try {
538 const rec = JSON.parse(row.record);
539 const lexmin = rec.source?.uri;
540 if (!lexmin) continue;
541
542 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
543 const candidateId = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
544
545 if (candidateId === id) {
546 const island = await deriveIsland(db, lexmin);
547 if (!island) continue;
548
549 const meta = await resolveVertexMeta(db, island.vertices);
550 const analysis = rec.analysis || {};
551
552 return c.json({
553 island: {
554 ...island,
555 lexmin: island.vertices.slice().sort()[0],
556 vertexMeta: Object.fromEntries(meta),
557 summary: analysis.title || null,
558 strata: {
559 prose: analysis.synthesis || "",
560 title: analysis.title || "",
561 themes: analysis.themes || [],
562 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
563 tensions: analysis.tensions || [],
564 open_questions: analysis.openQuestions || [],
565 synthesis: analysis.synthesis || "",
566 },
567 },
568 recordUri: row.uri,
569 });
570 }
571 } catch {}
572 }
573
574 // No strata record — try deriving island by treating the ID as a lexmin seed
575 // (for islands that haven't been analyzed yet)
576 const island = await deriveIsland(db, id);
577 if (!island) {
578 return c.json({ error: "IslandNotFound" }, 404);
579 }
580
581 const meta = await resolveVertexMeta(db, island.vertices);
582 return c.json({
583 island: {
584 ...island,
585 lexmin: island.vertices.slice().sort()[0],
586 vertexMeta: Object.fromEntries(meta),
587 summary: null,
588 strata: null,
589 },
590 recordUri: null,
591 });
592 });
593
594 // ── List strata records (AT URI-based) ──────────────────────────
595
596 app.get("/xrpc/org.latha.strata.listRecords", async (c) => {
597 const rows = await db
598 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT 50")
599 .all<{ uri: string; record: string }>();
600
601 const records = (rows.results || []).map(r => {
602 try {
603 const rec = JSON.parse(r.record);
604 return {
605 uri: r.uri,
606 source: rec.source?.uri || "",
607 title: rec.analysis?.title || "",
608 themes: rec.analysis?.themes || [],
609 createdAt: rec.createdAt || "",
610 };
611 } catch {
612 return null;
613 }
614 }).filter(Boolean);
615
616 return c.json({ records });
617 });
618
619 // ── Strata record endpoint (AT URI-based) ──────────────────────
620
621 app.get("/xrpc/org.latha.strata.getRecord", async (c) => {
622 const uri = c.req.query("uri");
623 if (!uri) {
624 return c.json({ error: "MissingRequiredParameter", message: "uri is required" }, 400);
625 }
626
627 // Fetch the strata record from D1 (indexed by Contrail)
628 const row = await db
629 .prepare("SELECT record FROM records_strata WHERE uri = ?")
630 .bind(uri)
631 .first<{ record: string }>();
632
633 if (!row) {
634 return c.json({ error: "NotFound", message: "Strata record not found" }, 404);
635 }
636
637 let strataRecord: any;
638 try {
639 strataRecord = JSON.parse(row.record);
640 } catch {
641 return c.json({ error: "InvalidRecord" }, 500);
642 }
643
644 // Derive island from lexmin (source.uri)
645 const lexmin = strataRecord.source?.uri;
646 if (!lexmin) {
647 return c.json({ error: "MissingLexmin", message: "Strata record has no source.uri" }, 400);
648 }
649
650 const island = await deriveIsland(db, lexmin);
651 if (!island) {
652 return c.json({ error: "IslandNotFound", message: "Could not derive island from lexmin" }, 404);
653 }
654
655 // Resolve vertex metadata
656 const meta = await resolveVertexMeta(db, island.vertices);
657
658 // Build the response in the same format as the island cache
659 const analysis = strataRecord.analysis || {};
660 const strataData = {
661 prose: analysis.synthesis || "",
662 title: analysis.title || "",
663 themes: analysis.themes || [],
664 relationships: (analysis.connections || []).map((c: any) => c.description || ""),
665 tensions: analysis.tensions || [],
666 open_questions: analysis.openQuestions || [],
667 synthesis: analysis.synthesis || "",
668 };
669
670 return c.json({
671 island: {
672 ...island,
673 vertexMeta: Object.fromEntries(meta),
674 summary: analysis.title || null,
675 strata: strataData,
676 },
677 record: strataRecord,
678 recordUri: uri,
679 });
680 });
681
682 // ── Container-backed xrpc methods ────────────────────────────────
683
684 // Helper: call the strata container
685 async function callContainer(path: string, method: string, body?: any): Promise<any> {
686 const id = env.STRATA_CONTAINER.idFromName("strata");
687 const stub = env.STRATA_CONTAINER.get(id);
688 const url = new URL(path, "http://container");
689 const init: RequestInit = { method };
690 if (body) {
691 init.body = JSON.stringify(body);
692 init.headers = { "Content-Type": "application/json" };
693 }
694 const resp = await stub.fetch(new Request(url.toString(), init));
695 return resp.json();
696 }
697
698 // Derive islands — POST, delegates to container
699 // With seed: single island. Without: all islands.
700 app.post("/xrpc/org.latha.strata.deriveIsland", async (c) => {
701 const body = await c.req.json().catch(() => ({})) as { seed?: string };
702 const seed = body.seed;
703
704 // Load all connections from D1 for the container to traverse
705 await ensureContrailReady(db);
706 const rows = await db
707 .prepare(
708 `SELECT r.record, r.did, r.rkey, i.handle
709 FROM records_connection r
710 LEFT JOIN identities i ON r.did = i.did`,
711 )
712 .all<{ record: string; did: string; rkey: string; handle: string | null }>();
713
714 const connections = (rows.results || []).map(r => {
715 try {
716 const value = JSON.parse(r.record);
717 return {
718 source: value.source,
719 target: value.target,
720 connectionType: value.connectionType || "relates",
721 note: value.note || "",
722 did: r.did,
723 rkey: r.rkey,
724 };
725 } catch {
726 return null;
727 }
728 }).filter(Boolean);
729
730 try {
731 const result = await callContainer("/deriveIsland", "POST", { connections, seed: seed || undefined });
732 return c.json(result);
733 } catch (e: any) {
734 return c.json({ error: "ContainerError", message: e.message }, 500);
735 }
736 });
737
738 // Run strata analysis — delegates to container
739 app.post("/xrpc/org.latha.strata.analyze", async (c) => {
740 const body = await c.req.json().catch(() => ({}));
741 if (!body.island) {
742 return c.json({ error: "MissingRequiredField", message: "island is required" }, 400);
743 }
744
745 try {
746 const result = await callContainer("/analyze", "POST", body);
747 return c.json(result);
748 } catch (e: any) {
749 return c.json({ error: "ContainerError", message: e.message }, 500);
750 }
751 });
752
753 // ── R2 sync endpoints ───────────────────────────────────────────
754
755 app.put("/api/sync/vault/:did/*", async (c) => {
756 const did = c.req.param("did");
757 const path = c.req.param("path");
758 if (!did || !path) {
759 return c.json({ error: "Missing path" }, 400);
760 }
761
762 const key = `${did}/${path}`;
763 const body = await c.req.raw.arrayBuffer();
764 await env.VAULT_BUCKET.put(key, body, {
765 httpMetadata: { contentType: c.req.header("content-type") || "text/markdown" },
766 });
767
768 return c.json({ ok: true, key });
769 });
770
771 app.put("/api/sync/carry/:did/*", async (c) => {
772 const did = c.req.param("did");
773 const path = c.req.param("path");
774 if (!did || !path) {
775 return c.json({ error: "Missing path" }, 400);
776 }
777
778 const key = `${did}/${path}`;
779 const body = await c.req.raw.arrayBuffer();
780 await env.CARRY_BUCKET.put(key, body, {
781 httpMetadata: { contentType: c.req.header("content-type") || "application/json" },
782 });
783
784 return c.json({ ok: true, key });
785 });
786
787 // ── Graph neighborhood query ────────────────────────────────────
788
789 app.get("/xrpc/org.latha.strata.connection.getGraph", async (c) => {
790 const uri = c.req.query("uri");
791 if (!uri) {
792 return c.json({ error: "MissingRequiredParameter", message: "uri is required" }, 400);
793 }
794
795 const depth = Math.min(parseInt(c.req.query("depth") || "2"), 3);
796 const limit = Math.min(parseInt(c.req.query("limit") || "50"), 100);
797 const types = c.req.query("types")?.split(",").map((t) => t.trim());
798
799 // Reuse island detection for the subgraph
800 const islands = await detectIslands(db);
801 const island = islands.find(i => i.vertices.includes(uri));
802
803 if (!island) {
804 return c.json({ connections: [], resources: [], depth, uri });
805 }
806
807 // Convert to graph format
808 const resources = island.vertices.map(v => ({
809 uri: v,
810 title: v,
811 type: "unknown",
812 }));
813
814 return c.json({
815 connections: island.edges,
816 resources,
817 depth,
818 uri,
819 });
820 });
821
822 // ── OAuth client metadata ──────────────────────────────────────
823
824 app.get("/oauth-client-metadata.json", (c) => {
825 const host = new URL(c.req.url).host;
826 return c.json({
827 client_id: `https://${host}/oauth-client-metadata.json`,
828 client_name: "Stigmergic",
829 client_uri: `https://${host}`,
830 redirect_uris: [`https://${host}/`],
831 scope: "atproto transition:generic",
832 grant_types: ["authorization_code", "refresh_token"],
833 response_types: ["code"],
834 token_endpoint_auth_method: "none",
835 application_type: "web",
836 dpop_bound_access_tokens: true,
837 });
838 });
839
840 // ── SPA fallback: serve landing page for client-side routes ──────
841 for (const path of ["/island", "/strata", "/connect"]) {
842 app.get(path, async (c) => {
843 let islandsJson = "[]";
844 try {
845 await ensureContrailReady(db);
846 const rows = await db
847 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT 50")
848 .all<{ uri: string; record: string }>();
849 const islands: any[] = [];
850 for (const row of rows.results || []) {
851 try {
852 const rec = JSON.parse(row.record);
853 const lexmin = rec.source?.uri;
854 if (!lexmin) continue;
855 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
856 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
857 islands.push({ id, lexmin, title: rec.analysis?.title || null, recordUri: row.uri });
858 } catch {}
859 }
860 islandsJson = JSON.stringify(islands);
861 } catch {}
862
863 const page = LANDING_PAGE.replace(
864 "</head>",
865 `<script>window.__ISLANDS__=${islandsJson};</script></head>`,
866 );
867 return c.html(page);
868 });
869 }
870
871 // ── All other routes pass through to contrail ──────────────────
872
873 app.all("*", async (c) => {
874 const response = await contrailWorker.fetch(
875 c.req.raw,
876 c.env as unknown as Record<string, unknown>,
877 );
878 return response;
879 });
880
881 return app;
882}
883
884// ─── Export ─────────────────────────────────────────────────────────
885
886export { StrataContainer };
887
888export default {
889 fetch(request: Request, env: Env): Response | Promise<Response> {
890 app ??= buildApp(env);
891 return app.fetch(request, env);
892 },
893 async scheduled(event: ScheduledEvent, env: Env, ctx: ExecutionContext) {
894 // Run Contrail indexing
895 await contrailWorker.scheduled(
896 event,
897 env as unknown as Record<string, unknown>,
898 ctx,
899 );
900 },
901};
902