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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 // Load only the fields we need — records are 100KB+ with embedded connections
383 let islandsJson = "[]";
384 try {
385 await ensureContrailReady(db);
386 const rows = await db
387 .prepare("SELECT uri, json_extract(record, '$.source.uri') as lexmin, json_extract(record, '$.analysis.title') as title FROM records_strata ORDER BY time_us DESC LIMIT 10")
388 .all<{ uri: string; lexmin: string | null; title: string | null }>();
389
390 const islands: any[] = [];
391 for (const row of rows.results || []) {
392 if (!row.lexmin) continue;
393 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(row.lexmin));
394 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
395 islands.push({ id, lexmin: row.lexmin, title: row.title || null, recordUri: row.uri });
396 }
397 islandsJson = JSON.stringify(islands);
398 } catch (e) {
399 console.error("Failed to load islands:", e);
400 }
401
402 const page = LANDING_PAGE.replace(
403 "</head>",
404 `<script>window.__ISLANDS__=${islandsJson};</script></head>`,
405 );
406 return c.html(page);
407 });
408
409 // ── Islands API ──────────────────────────────────────────────────
410
411 app.get("/xrpc/org.latha.strata.getIslands", async (c) => {
412 const limit = Math.min(parseInt(c.req.query("limit") || "50"), 100);
413 await ensureContrailReady(db);
414
415 const rows = await db
416 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT ?")
417 .bind(limit)
418 .all<{ uri: string; record: string }>();
419
420 const islands: any[] = [];
421 for (const row of rows.results || []) {
422 try {
423 const rec = JSON.parse(row.record);
424 const lexmin = rec.source?.uri;
425 if (!lexmin) continue;
426
427 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
428 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
429
430 // Build graph directly from embedded connections — no D1 lookups needed
431 const connections: any[] = rec.connections || [];
432 const vertexSet = new Set<string>();
433 const edges: any[] = [];
434
435 for (const conn of connections) {
436 if (typeof conn === "object" && conn.source && conn.target) {
437 vertexSet.add(conn.source);
438 vertexSet.add(conn.target);
439 edges.push(conn);
440 }
441 }
442
443 const vertices = [...vertexSet].sort();
444 const vertexMeta = Object.fromEntries(await resolveVertexMeta(db, vertices));
445
446 const analysis = rec.analysis || {};
447 islands.push({
448 id, lexmin, vertices, edges, vertexMeta,
449 title: analysis.title || null,
450 strata: analysis.synthesis ? {
451 prose: analysis.synthesis || "", title: analysis.title || "",
452 themes: analysis.themes || [],
453 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
454 tensions: analysis.tensions || [],
455 open_questions: analysis.openQuestions || [],
456 synthesis: analysis.synthesis || "",
457 } : null,
458 recordUri: row.uri,
459 });
460 } catch {}
461 }
462
463 return c.json({ islands });
464 });
465
466 // ── Get single island by ID or AT URI ────────────────────────────
467
468 app.get("/xrpc/org.latha.strata.getIsland", async (c) => {
469 const id = c.req.query("id");
470 if (!id) {
471 return c.json({ error: "MissingRequiredParameter", message: "id is required" }, 400);
472 }
473
474 await ensureContrailReady(db);
475
476 // If it's an AT URI, look up the strata record and derive from its lexmin
477 if (id.startsWith("at://")) {
478 const row = await db
479 .prepare("SELECT uri, record FROM records_strata WHERE uri = ?")
480 .bind(id)
481 .first<{ uri: string; record: string }>();
482
483 if (!row) {
484 return c.json({ error: "RecordNotFound" }, 404);
485 }
486
487 const rec = JSON.parse(row.record);
488 const lexmin = rec.source?.uri;
489 if (!lexmin) {
490 return c.json({ error: "InvalidRecord" }, 400);
491 }
492
493 const island = await deriveIsland(db, lexmin);
494 if (!island) {
495 return c.json({ error: "IslandNotFound" }, 404);
496 }
497
498 const meta = await resolveVertexMeta(db, island.vertices);
499 const analysis = rec.analysis || {};
500
501 return c.json({
502 island: {
503 ...island,
504 lexmin: island.vertices.slice().sort()[0],
505 vertexMeta: Object.fromEntries(meta),
506 summary: analysis.title || null,
507 strata: {
508 prose: analysis.synthesis || "",
509 title: analysis.title || "",
510 themes: analysis.themes || [],
511 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
512 tensions: analysis.tensions || [],
513 open_questions: analysis.openQuestions || [],
514 synthesis: analysis.synthesis || "",
515 },
516 },
517 recordUri: row.uri,
518 });
519 }
520
521 // Stable ID — derive from lexmin by reverse-lookup
522 // Find the strata record whose lexmin hashes to this ID
523 const strataRows = await db
524 .prepare("SELECT uri, record FROM records_strata")
525 .all<{ uri: string; record: string }>();
526
527 for (const row of strataRows.results || []) {
528 try {
529 const rec = JSON.parse(row.record);
530 const lexmin = rec.source?.uri;
531 if (!lexmin) continue;
532
533 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
534 const candidateId = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
535
536 if (candidateId === id) {
537 const island = await deriveIsland(db, lexmin);
538 if (!island) continue;
539
540 const meta = await resolveVertexMeta(db, island.vertices);
541 const analysis = rec.analysis || {};
542
543 return c.json({
544 island: {
545 ...island,
546 lexmin: island.vertices.slice().sort()[0],
547 vertexMeta: Object.fromEntries(meta),
548 summary: analysis.title || null,
549 strata: {
550 prose: analysis.synthesis || "",
551 title: analysis.title || "",
552 themes: analysis.themes || [],
553 relationships: (analysis.connections || []).map((conn: any) => conn.description || ""),
554 tensions: analysis.tensions || [],
555 open_questions: analysis.openQuestions || [],
556 synthesis: analysis.synthesis || "",
557 },
558 },
559 recordUri: row.uri,
560 });
561 }
562 } catch {}
563 }
564
565 // No strata record — try deriving island by treating the ID as a lexmin seed
566 // (for islands that haven't been analyzed yet)
567 const island = await deriveIsland(db, id);
568 if (!island) {
569 return c.json({ error: "IslandNotFound" }, 404);
570 }
571
572 const meta = await resolveVertexMeta(db, island.vertices);
573 return c.json({
574 island: {
575 ...island,
576 lexmin: island.vertices.slice().sort()[0],
577 vertexMeta: Object.fromEntries(meta),
578 summary: null,
579 strata: null,
580 },
581 recordUri: null,
582 });
583 });
584
585 // ── List strata records (AT URI-based) ──────────────────────────
586
587 app.get("/xrpc/org.latha.strata.listRecords", async (c) => {
588 const rows = await db
589 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT 50")
590 .all<{ uri: string; record: string }>();
591
592 const records = (rows.results || []).map(r => {
593 try {
594 const rec = JSON.parse(r.record);
595 return {
596 uri: r.uri,
597 source: rec.source?.uri || "",
598 title: rec.analysis?.title || "",
599 themes: rec.analysis?.themes || [],
600 createdAt: rec.createdAt || "",
601 };
602 } catch {
603 return null;
604 }
605 }).filter(Boolean);
606
607 return c.json({ records });
608 });
609
610 // ── Strata record endpoint (AT URI-based) ──────────────────────
611
612 app.get("/xrpc/org.latha.strata.getRecord", async (c) => {
613 const uri = c.req.query("uri");
614 if (!uri) {
615 return c.json({ error: "MissingRequiredParameter", message: "uri is required" }, 400);
616 }
617
618 // Fetch the strata record from D1 (indexed by Contrail)
619 const row = await db
620 .prepare("SELECT record FROM records_strata WHERE uri = ?")
621 .bind(uri)
622 .first<{ record: string }>();
623
624 if (!row) {
625 return c.json({ error: "NotFound", message: "Strata record not found" }, 404);
626 }
627
628 let strataRecord: any;
629 try {
630 strataRecord = JSON.parse(row.record);
631 } catch {
632 return c.json({ error: "InvalidRecord" }, 500);
633 }
634
635 // Derive island from lexmin (source.uri)
636 const lexmin = strataRecord.source?.uri;
637 if (!lexmin) {
638 return c.json({ error: "MissingLexmin", message: "Strata record has no source.uri" }, 400);
639 }
640
641 const island = await deriveIsland(db, lexmin);
642 if (!island) {
643 return c.json({ error: "IslandNotFound", message: "Could not derive island from lexmin" }, 404);
644 }
645
646 // Resolve vertex metadata
647 const meta = await resolveVertexMeta(db, island.vertices);
648
649 // Build the response in the same format as the island cache
650 const analysis = strataRecord.analysis || {};
651 const strataData = {
652 prose: analysis.synthesis || "",
653 title: analysis.title || "",
654 themes: analysis.themes || [],
655 relationships: (analysis.connections || []).map((c: any) => c.description || ""),
656 tensions: analysis.tensions || [],
657 open_questions: analysis.openQuestions || [],
658 synthesis: analysis.synthesis || "",
659 };
660
661 return c.json({
662 island: {
663 ...island,
664 vertexMeta: Object.fromEntries(meta),
665 summary: analysis.title || null,
666 strata: strataData,
667 },
668 record: strataRecord,
669 recordUri: uri,
670 });
671 });
672
673 // ── Container-backed xrpc methods ────────────────────────────────
674
675 // Helper: call the strata container
676 async function callContainer(path: string, method: string, body?: any): Promise<any> {
677 const id = env.STRATA_CONTAINER.idFromName("strata");
678 const stub = env.STRATA_CONTAINER.get(id);
679 const url = new URL(path, "http://container");
680 const init: RequestInit = { method };
681 if (body) {
682 init.body = JSON.stringify(body);
683 init.headers = { "Content-Type": "application/json" };
684 }
685 const resp = await stub.fetch(new Request(url.toString(), init));
686 return resp.json();
687 }
688
689 // Derive islands — POST, delegates to container
690 // With seed: single island. Without: all islands.
691 app.post("/xrpc/org.latha.strata.deriveIsland", async (c) => {
692 const body = await c.req.json().catch(() => ({})) as { seed?: string };
693 const seed = body.seed;
694
695 // Load all connections from D1 for the container to traverse
696 await ensureContrailReady(db);
697 const rows = await db
698 .prepare(
699 `SELECT r.record, r.did, r.rkey, i.handle
700 FROM records_connection r
701 LEFT JOIN identities i ON r.did = i.did`,
702 )
703 .all<{ record: string; did: string; rkey: string; handle: string | null }>();
704
705 const connections = (rows.results || []).map(r => {
706 try {
707 const value = JSON.parse(r.record);
708 return {
709 source: value.source,
710 target: value.target,
711 connectionType: value.connectionType || "relates",
712 note: value.note || "",
713 did: r.did,
714 rkey: r.rkey,
715 };
716 } catch {
717 return null;
718 }
719 }).filter(Boolean);
720
721 try {
722 const result = await callContainer("/deriveIsland", "POST", { connections, seed: seed || undefined });
723 return c.json(result);
724 } catch (e: any) {
725 return c.json({ error: "ContainerError", message: e.message }, 500);
726 }
727 });
728
729 // Run strata analysis — delegates to container
730 app.post("/xrpc/org.latha.strata.analyze", async (c) => {
731 const body = await c.req.json().catch(() => ({}));
732 if (!body.island) {
733 return c.json({ error: "MissingRequiredField", message: "island is required" }, 400);
734 }
735
736 try {
737 const result = await callContainer("/analyze", "POST", body);
738 return c.json(result);
739 } catch (e: any) {
740 return c.json({ error: "ContainerError", message: e.message }, 500);
741 }
742 });
743
744 // ── R2 sync endpoints ───────────────────────────────────────────
745
746 app.put("/api/sync/vault/:did/*", async (c) => {
747 const did = c.req.param("did");
748 const path = c.req.param("path");
749 if (!did || !path) {
750 return c.json({ error: "Missing path" }, 400);
751 }
752
753 const key = `${did}/${path}`;
754 const body = await c.req.raw.arrayBuffer();
755 await env.VAULT_BUCKET.put(key, body, {
756 httpMetadata: { contentType: c.req.header("content-type") || "text/markdown" },
757 });
758
759 return c.json({ ok: true, key });
760 });
761
762 app.put("/api/sync/carry/:did/*", async (c) => {
763 const did = c.req.param("did");
764 const path = c.req.param("path");
765 if (!did || !path) {
766 return c.json({ error: "Missing path" }, 400);
767 }
768
769 const key = `${did}/${path}`;
770 const body = await c.req.raw.arrayBuffer();
771 await env.CARRY_BUCKET.put(key, body, {
772 httpMetadata: { contentType: c.req.header("content-type") || "application/json" },
773 });
774
775 return c.json({ ok: true, key });
776 });
777
778 // ── Graph neighborhood query ────────────────────────────────────
779
780 app.get("/xrpc/org.latha.strata.connection.getGraph", async (c) => {
781 const uri = c.req.query("uri");
782 if (!uri) {
783 return c.json({ error: "MissingRequiredParameter", message: "uri is required" }, 400);
784 }
785
786 const depth = Math.min(parseInt(c.req.query("depth") || "2"), 3);
787 const limit = Math.min(parseInt(c.req.query("limit") || "50"), 100);
788 const types = c.req.query("types")?.split(",").map((t) => t.trim());
789
790 // Reuse island detection for the subgraph
791 const islands = await detectIslands(db);
792 const island = islands.find(i => i.vertices.includes(uri));
793
794 if (!island) {
795 return c.json({ connections: [], resources: [], depth, uri });
796 }
797
798 // Convert to graph format
799 const resources = island.vertices.map(v => ({
800 uri: v,
801 title: v,
802 type: "unknown",
803 }));
804
805 return c.json({
806 connections: island.edges,
807 resources,
808 depth,
809 uri,
810 });
811 });
812
813 // ── OAuth client metadata ──────────────────────────────────────
814
815 app.get("/oauth-client-metadata.json", (c) => {
816 const host = new URL(c.req.url).host;
817 return c.json({
818 client_id: `https://${host}/oauth-client-metadata.json`,
819 client_name: "Stigmergic",
820 client_uri: `https://${host}`,
821 redirect_uris: [`https://${host}/`],
822 scope: "atproto transition:generic",
823 grant_types: ["authorization_code", "refresh_token"],
824 response_types: ["code"],
825 token_endpoint_auth_method: "none",
826 application_type: "web",
827 dpop_bound_access_tokens: true,
828 });
829 });
830
831 // ── SPA fallback: serve landing page for client-side routes ──────
832 for (const path of ["/island", "/strata", "/connect"]) {
833 app.get(path, async (c) => {
834 let islandsJson = "[]";
835 try {
836 await ensureContrailReady(db);
837 const rows = await db
838 .prepare("SELECT uri, record FROM records_strata ORDER BY time_us DESC LIMIT 50")
839 .all<{ uri: string; record: string }>();
840 const islands: any[] = [];
841 for (const row of rows.results || []) {
842 try {
843 const rec = JSON.parse(row.record);
844 const lexmin = rec.source?.uri;
845 if (!lexmin) continue;
846 const lexminHash = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(lexmin));
847 const id = Array.from(new Uint8Array(lexminHash)).map(b => b.toString(16).padStart(2, "0")).join("").slice(0, 16);
848 islands.push({ id, lexmin, title: rec.analysis?.title || null, recordUri: row.uri });
849 } catch {}
850 }
851 islandsJson = JSON.stringify(islands);
852 } catch {}
853
854 const page = LANDING_PAGE.replace(
855 "</head>",
856 `<script>window.__ISLANDS__=${islandsJson};</script></head>`,
857 );
858 return c.html(page);
859 });
860 }
861
862 // ── All other routes pass through to contrail ──────────────────
863
864 app.all("*", async (c) => {
865 const response = await contrailWorker.fetch(
866 c.req.raw,
867 c.env as unknown as Record<string, unknown>,
868 );
869 return response;
870 });
871
872 return app;
873}
874
875// ─── Export ─────────────────────────────────────────────────────────
876
877export { StrataContainer };
878
879export default {
880 fetch(request: Request, env: Env): Response | Promise<Response> {
881 app ??= buildApp(env);
882 return app.fetch(request, env);
883 },
884 async scheduled(event: ScheduledEvent, env: Env, ctx: ExecutionContext) {
885 // Run Contrail indexing
886 await contrailWorker.scheduled(
887 event,
888 env as unknown as Record<string, unknown>,
889 ctx,
890 );
891 },
892};
893