feat(fase-9): wire sync_conflicts table + queue logging + debug panel

Closes 9.3 in full: migration 016 + pgTAP test 010 + queue.ts
conflict-detection path + /settings debug panel + integration test.

- Migration 016 adds public.sync_conflicts (append-only audit log of
  last-write-wins conflicts surfaced by the offline mutation queue).
  RLS allows owners to SELECT + INSERT their own rows only; UPDATE
  and DELETE have no policy and are silently denied. collective_id
  is intentionally nullable so user-level conflicts (theme, language
  in future) also fit. Indexed on (user_id, created_at desc) for the
  "show me my last 20 conflicts" query.
- queue.ts gains a `QueueContext` (currentUserId + collectiveId) and
  an optional `preImage` field on UpdateOp. Before sending an UPDATE
  the queue fetches the remote row (limited to the patched fields),
  proceeds with the UPDATE (last-write-wins), then fires a best-effort
  INSERT into sync_conflicts when the remote diverged. Failure to log
  never blocks the UPDATE or pollutes the pending_ops queue. Three
  unit specs (SC-01..SC-03) lock the contract in.
- sync/index.ts exposes setSyncContext(), called from (app)/+layout's
  $effect whenever currentUser / currentCollective change.
- New SyncConflictsPanel.svelte renders the last 20 conflict rows
  for the current user with an "Export JSON" button. Gated on
  import.meta.env.DEV (or a forceShow prop for a future secret
  unlock) — never ships in the production bundle. Slotted into
  /settings just above the Account section.
- Integration tests (packages/test-utils/tests/sync-conflicts.test.ts,
  4 SC-INT specs) exercise the real PostgREST + RLS contract end-to-end
  with the existing seed users (Ana, Borja). Requires fake-indexeddb in
  the test-utils dev deps (queue's IDB shim).
- pgTAP test 010 covers structure, RLS reads/writes, ownership rejection,
  and the append-only invariant (UPDATE/DELETE return 0 rows).
- packages/types/src/database.ts adds the sync_conflicts table type.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
2026-05-18 01:31:35 +02:00
parent a0e00b8044
commit ed556ce245
14 changed files with 822 additions and 4 deletions

View File

@@ -19,6 +19,7 @@
},
"devDependencies": {
"@types/pg": "^8.11.10",
"fake-indexeddb": "^6.2.5",
"typescript": "^5.7.3",
"vite": "^6.0.7",
"vitest": "^2.1.8"

View File

@@ -0,0 +1,149 @@
/**
* SC-INT series: sync_conflicts wiring (Fase 9.3).
*
* The unit tests in apps/web/src/lib/sync/queue.test.ts cover the
* conflict-detection logic in isolation. This file exercises the live
* PostgREST path so we know:
*
* SC-INT-01: a user can insert a row attributed to themselves and read
* it back.
* SC-INT-02: a user cannot read another user's conflict rows (RLS).
* SC-INT-03: UPDATE / DELETE are rejected silently (no policy) so the
* table stays append-only at the API surface, not just at
* the schema level.
*
* The combination of these three is what makes the offline-queue's
* best-effort logging safe to enable in production.
*/
import { describe, it, expect, afterAll } from 'vitest';
import { createClientAs, createAdminClient } from '../src/supabase-clients.js';
import { closePool } from '../src/db-helpers.js';
import { ANA_ID, BORJA_ID, COLLECTIVE_ID } from '../src/seed-constants.js';
const admin = createAdminClient();
const insertedConflictIds: string[] = [];
afterAll(async () => {
if (insertedConflictIds.length > 0) {
await admin.from('sync_conflicts').delete().in('id', insertedConflictIds);
}
await closePool();
});
describe('sync_conflicts — RLS + PostgREST contract', () => {
it('SC-INT-01: a user can insert their own conflict row and read it back', async () => {
const ana = await createClientAs(ANA_ID);
const entityId = '00000000-0000-0000-0000-0000000000a1';
const { data, error } = await ana
.from('sync_conflicts')
.insert({
user_id: ANA_ID,
collective_id: COLLECTIVE_ID,
entity_type: 'shopping_item',
entity_id: entityId,
local_version: { name: 'ana-local' },
remote_version: { name: 'ana-remote' },
resolution: 'remote_won'
})
.select('id')
.single();
expect(error).toBeNull();
expect(data?.id).toBeTruthy();
insertedConflictIds.push(data!.id);
const { data: rows } = await ana
.from('sync_conflicts')
.select('user_id, entity_type, resolution')
.eq('id', data!.id);
expect(rows ?? []).toHaveLength(1);
expect(rows![0].user_id).toBe(ANA_ID);
expect(rows![0].resolution).toBe('remote_won');
});
it('SC-INT-02: a user cannot read another user\'s conflict rows', async () => {
// Insert as Borja (RLS still has to allow the self-insert).
const borja = await createClientAs(BORJA_ID);
const { data, error } = await borja
.from('sync_conflicts')
.insert({
user_id: BORJA_ID,
collective_id: COLLECTIVE_ID,
entity_type: 'shopping_item',
entity_id: '00000000-0000-0000-0000-0000000000b1',
local_version: { name: 'borja-only' },
remote_version: { name: 'remote' },
resolution: 'remote_won'
})
.select('id')
.single();
expect(error).toBeNull();
insertedConflictIds.push(data!.id);
// Ana cannot see it.
const ana = await createClientAs(ANA_ID);
const { data: visibleToAna } = await ana
.from('sync_conflicts')
.select('id')
.eq('id', data!.id);
expect(visibleToAna ?? []).toHaveLength(0);
});
it('SC-INT-03: a user cannot impersonate another via user_id at insert time', async () => {
const ana = await createClientAs(ANA_ID);
const { data, error } = await ana
.from('sync_conflicts')
.insert({
user_id: BORJA_ID, // not me
entity_type: 'shopping_item',
entity_id: '00000000-0000-0000-0000-0000000000a2',
local_version: {},
remote_version: {},
resolution: 'remote_won'
})
.select('id')
.single();
expect(data).toBeNull();
expect(error).not.toBeNull();
});
it('SC-INT-04: UPDATE / DELETE are denied silently (append-only)', async () => {
// Insert a row as Ana, then try to update + delete it as Ana.
const ana = await createClientAs(ANA_ID);
const { data: inserted, error } = await ana
.from('sync_conflicts')
.insert({
user_id: ANA_ID,
entity_type: 'shopping_item',
entity_id: '00000000-0000-0000-0000-0000000000a3',
local_version: { v: 1 },
remote_version: { v: 2 },
resolution: 'remote_won'
})
.select('id')
.single();
expect(error).toBeNull();
insertedConflictIds.push(inserted!.id);
const { data: updated } = await ana
.from('sync_conflicts')
.update({ resolution: 'local_won' })
.eq('id', inserted!.id)
.select('id');
expect(updated ?? []).toHaveLength(0); // RLS returns 0 rows updated
const { data: deleted } = await ana
.from('sync_conflicts')
.delete()
.eq('id', inserted!.id)
.select('id');
expect(deleted ?? []).toHaveLength(0);
// Row is still there.
const { data: stillThere } = await ana
.from('sync_conflicts')
.select('id, resolution')
.eq('id', inserted!.id)
.single();
expect(stillThere?.resolution).toBe('remote_won');
});
});

View File

@@ -344,6 +344,55 @@ export interface Database {
};
Relationships: [];
};
sync_conflicts: {
Row: {
id: string;
user_id: string;
collective_id: string | null;
entity_type: string;
entity_id: string;
local_version: Json;
remote_version: Json;
resolution: 'remote_won' | 'local_won';
created_at: string;
};
Insert: {
id?: string;
user_id: string;
collective_id?: string | null;
entity_type: string;
entity_id: string;
local_version: Json;
remote_version: Json;
resolution: 'remote_won' | 'local_won';
created_at?: string;
};
Update: {
id?: string;
user_id?: string;
collective_id?: string | null;
entity_type?: string;
entity_id?: string;
local_version?: Json;
remote_version?: Json;
resolution?: 'remote_won' | 'local_won';
created_at?: string;
};
Relationships: [
{
foreignKeyName: 'sync_conflicts_user_id_fkey';
columns: ['user_id'];
referencedRelation: 'users';
referencedColumns: ['id'];
},
{
foreignKeyName: 'sync_conflicts_collective_id_fkey';
columns: ['collective_id'];
referencedRelation: 'collectives';
referencedColumns: ['id'];
}
];
};
item_frequency: {
Row: {
collective_id: string;