refactor: register channel bootstrap capabilities

extensions/imessage/src/shared.ts

@@ -14,6 +14,10 @@ import {
 } from "./accounts.js";
 import { getChatChannelMeta, type ChannelPlugin } from "./channel-api.js";
 import { IMessageChannelConfigSchema } from "./config-schema.js";
+import {
+  resolveIMessageAttachmentRoots,
+  resolveIMessageRemoteAttachmentRoots,
+} from "./media-contract.js";
 import { createIMessageSetupWizardProxy } from "./setup-core.js";
 
 export const IMESSAGE_CHANNEL = "imessage" as const;
@@ -65,8 +69,9 @@ export function createIMessagePluginBase(params: {
   | "config"
   | "security"
   | "setup"
+  | "messaging"
 > {
-  return createChannelPluginBase({
+  const base = createChannelPluginBase({
     id: IMESSAGE_CHANNEL,
     meta: {
       ...getChatChannelMeta(IMESSAGE_CHANNEL),
@@ -91,7 +96,16 @@ export function createIMessagePluginBase(params: {
     },
     security: imessageSecurityAdapter,
     setup: params.setup,
-  }) as Pick<
+  });
+  return {
+    ...base,
+    messaging: {
+      resolveInboundAttachmentRoots: (params) =>
+        resolveIMessageAttachmentRoots({ accountId: params.accountId, cfg: params.cfg }),
+      resolveRemoteInboundAttachmentRoots: (params) =>
+        resolveIMessageRemoteAttachmentRoots({ accountId: params.accountId, cfg: params.cfg }),
+    },
+  } as Pick<
     ChannelPlugin<ResolvedIMessageAccount>,
     | "id"
     | "meta"
@@ -102,5 +116,6 @@ export function createIMessagePluginBase(params: {
     | "config"
     | "security"
     | "setup"
+    | "messaging"
   >;
 }