| 1 | { |
| 2 | "description": "Group-apps registry vectors: which trusted first-party apps a group chat has added. The registry is fold state from wire events in the group's own encrypted log — the server never learns which app was added. Source of truth: web/static/apps.js (the groupapps system app).", |
| 3 | "app": "groupapps", |
| 4 | "source": "web/static/apps.js (installsApp — one registry for every shared place; this file pins its groupapps event family)", |
| 5 | "state_shape": { |
| 6 | "apps": [ |
| 7 | { |
| 8 | "id": "string (the added app's name, e.g. \"todo\")", |
| 9 | "by": "string (sender name)", |
| 10 | "ts": "number (epoch ms)" |
| 11 | } |
| 12 | ] |
| 13 | }, |
| 14 | "notes": [ |
| 15 | "The item id IS the app name, so a duplicate add (any member, any refold) is a no-op and a remove needs no lookup.", |
| 16 | "Unknown app names fold into state unchanged in shape — clients filter to registered, groupCapable apps at READ time (groupAppsFor), so old and new clients converge on the same log.", |
| 17 | "Chat projection: the group fold prefixes the actor's name onto the projection text, so the rendered action line is e.g. \"Ana added To-do to this chat\". The expected_chat_projection below is the raw groupFeedMessage() output, pre-prefix — same convention as todo.json (whose companion app projects via chatMessage instead).", |
| 18 | "An app's own events posted into a group thread fold with the app's ordinary vectors (todo.json etc.) — same events, same reducer, keyed by the group thread instead of the personal one." |
| 19 | ], |
| 20 | "vectors": [ |
| 21 | { |
| 22 | "name": "groupapps_add", |
| 23 | "description": "A member adds a trusted app to the group.", |
| 24 | "event": { |
| 25 | "type": "groupapps.add", |
| 26 | "app": "todo", |
| 27 | "name": "Ana", |
| 28 | "ts": 1700000000000 |
| 29 | }, |
| 30 | "expected_state_update": { |
| 31 | "apps": [ |
| 32 | { |
| 33 | "id": "todo", |
| 34 | "by": "Ana", |
| 35 | "ts": 1700000000000 |
| 36 | } |
| 37 | ] |
| 38 | }, |
| 39 | "expected_chat_projection": { |
| 40 | "text": "added To-do to this chat", |
| 41 | "action": true |
| 42 | } |
| 43 | }, |
| 44 | { |
| 45 | "name": "groupapps_add_duplicate", |
| 46 | "description": "Re-adding an already-added app is a no-op (idempotent by app name).", |
| 47 | "event": { |
| 48 | "type": "groupapps.add", |
| 49 | "app": "todo", |
| 50 | "name": "Bob", |
| 51 | "ts": 1700000005000 |
| 52 | }, |
| 53 | "initial_state": { |
| 54 | "apps": [ |
| 55 | { |
| 56 | "id": "todo", |
| 57 | "by": "Ana", |
| 58 | "ts": 1700000000000 |
| 59 | } |
| 60 | ] |
| 61 | }, |
| 62 | "expected_state_update": { |
| 63 | "apps": [ |
| 64 | { |
| 65 | "id": "todo", |
| 66 | "by": "Ana", |
| 67 | "ts": 1700000000000 |
| 68 | } |
| 69 | ] |
| 70 | }, |
| 71 | "note": "The original add's attribution is kept — a duplicate never rewrites by/ts." |
| 72 | }, |
| 73 | { |
| 74 | "name": "groupapps_remove", |
| 75 | "description": "A member removes an added app from the group.", |
| 76 | "event": { |
| 77 | "type": "groupapps.remove", |
| 78 | "app": "todo", |
| 79 | "name": "Ana", |
| 80 | "ts": 1700000010000 |
| 81 | }, |
| 82 | "initial_state": { |
| 83 | "apps": [ |
| 84 | { |
| 85 | "id": "todo", |
| 86 | "by": "Ana", |
| 87 | "ts": 1700000000000 |
| 88 | } |
| 89 | ] |
| 90 | }, |
| 91 | "expected_state_update": { |
| 92 | "apps": [] |
| 93 | }, |
| 94 | "expected_chat_projection": { |
| 95 | "text": "removed To-do from this chat", |
| 96 | "action": true |
| 97 | } |
| 98 | }, |
| 99 | { |
| 100 | "name": "groupapps_add_malformed", |
| 101 | "description": "An add with no app name (malformed or hostile) folds to a no-op, never a crash.", |
| 102 | "event": { |
| 103 | "type": "groupapps.add", |
| 104 | "name": "Mallory", |
| 105 | "ts": 1700000020000 |
| 106 | }, |
| 107 | "initial_state": { |
| 108 | "apps": [] |
| 109 | }, |
| 110 | "expected_state_update": { |
| 111 | "apps": [] |
| 112 | } |
| 113 | }, |
| 114 | { |
| 115 | "name": "groupapps_remove_missing", |
| 116 | "description": "Removing an app that isn't added (a cancel racing a remove, a refold) is a no-op.", |
| 117 | "event": { |
| 118 | "type": "groupapps.remove", |
| 119 | "app": "todo", |
| 120 | "name": "Ana", |
| 121 | "ts": 1700000030000 |
| 122 | }, |
| 123 | "initial_state": { |
| 124 | "apps": [] |
| 125 | }, |
| 126 | "expected_state_update": { |
| 127 | "apps": [] |
| 128 | } |
| 129 | } |
| 130 | ] |
| 131 | } |
| 132 | |
amadan