Implement polling and message handling in legypolling.js (#122)

Author: Madoa5561

example/legy/legypolling.js

@@ -0,0 +1,46 @@
+import { base, LINEStruct } from "./legyfetch.js";
+
+// patch
+base.talk.sync = async function (options = {}) {
+  const { limit, revision, individualRev, globalRev, timeout } = {
+    limit: 100, revision: 0, globalRev: 0, individualRev: 0,
+    timeout: base.config.longTimeout,
+    ...options,
+  };
+  return await base.request.request(
+    LINEStruct.sync_args({
+      request: {
+        lastRevision: revision,
+        lastGlobalRevision: globalRev,
+        lastIndividualRevision: individualRev,
+        count: limit,
+      },
+    }),
+    "sync", 3, true, "/SYNC3", {}, timeout,
+  );
+};
+
+const profile = await base.talk.getProfile();
+console.log(`Logged in: ${profile.displayName} (${profile.mid})`);
+const polling = base.createPolling();
+for await (const op of polling._listenTalkEvents({ pollingInterval: 1000 })) {
+  if (op.type === "RECEIVE_MESSAGE" || op.type === "SEND_MESSAGE") {
+    const message = op.message;
+    let text = message?.text;
+    if (message?.chunks) {
+      try {
+        const decrypted = await base.e2ee.decryptE2EEMessage(message);
+        text = decrypted.text;
+      } catch (e) {
+      }
+    }
+    if (text === "!ping") {
+      const replyTo = message.to === profile.mid ? message.from : message.to;
+      await base.talk.sendMessage({
+        to: replyTo,
+        text: "pong!",
+        e2ee: !!message.chunks,
+      });
+    }
+  }
+}