refactor(channels): share allowlist + resolver helpers

extensions/matrix/src/resolve-targets.ts

@@ -0,0 +1,89 @@
+import type {
+  ChannelDirectoryEntry,
+  ChannelResolveKind,
+  ChannelResolveResult,
+} from "../../../src/channels/plugins/types.js";
+import type { RuntimeEnv } from "../../../src/runtime.js";
+
+import {
+  listMatrixDirectoryGroupsLive,
+  listMatrixDirectoryPeersLive,
+} from "./directory-live.js";
+
+function pickBestGroupMatch(
+  matches: ChannelDirectoryEntry[],
+  query: string,
+): ChannelDirectoryEntry | undefined {
+  if (matches.length === 0) return undefined;
+  const normalized = query.trim().toLowerCase();
+  if (normalized) {
+    const exact = matches.find((match) => {
+      const name = match.name?.trim().toLowerCase();
+      const handle = match.handle?.trim().toLowerCase();
+      const id = match.id.trim().toLowerCase();
+      return name === normalized || handle === normalized || id === normalized;
+    });
+    if (exact) return exact;
+  }
+  return matches[0];
+}
+
+export async function resolveMatrixTargets(params: {
+  cfg: unknown;
+  inputs: string[];
+  kind: ChannelResolveKind;
+  runtime?: RuntimeEnv;
+}): Promise<ChannelResolveResult[]> {
+  const results: ChannelResolveResult[] = [];
+  for (const input of params.inputs) {
+    const trimmed = input.trim();
+    if (!trimmed) {
+      results.push({ input, resolved: false, note: "empty input" });
+      continue;
+    }
+    if (params.kind === "user") {
+      if (trimmed.startsWith("@") && trimmed.includes(":")) {
+        results.push({ input, resolved: true, id: trimmed });
+        continue;
+      }
+      try {
+        const matches = await listMatrixDirectoryPeersLive({
+          cfg: params.cfg,
+          query: trimmed,
+          limit: 5,
+        });
+        const best = matches[0];
+        results.push({
+          input,
+          resolved: Boolean(best?.id),
+          id: best?.id,
+          name: best?.name,
+          note: matches.length > 1 ? "multiple matches; chose first" : undefined,
+        });
+      } catch (err) {
+        params.runtime?.error?.(`matrix resolve failed: ${String(err)}`);
+        results.push({ input, resolved: false, note: "lookup failed" });
+      }
+      continue;
+    }
+    try {
+      const matches = await listMatrixDirectoryGroupsLive({
+        cfg: params.cfg,
+        query: trimmed,
+        limit: 5,
+      });
+      const best = pickBestGroupMatch(matches, trimmed);
+      results.push({
+        input,
+        resolved: Boolean(best?.id),
+        id: best?.id,
+        name: best?.name,
+        note: matches.length > 1 ? "multiple matches; chose first" : undefined,
+      });
+    } catch (err) {
+      params.runtime?.error?.(`matrix resolve failed: ${String(err)}`);
+      results.push({ input, resolved: false, note: "lookup failed" });
+    }
+  }
+  return results;
+}