feat: support compact command across IM channels

test/compact-command.test.mjs

@@ -0,0 +1,171 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import test from 'node:test';
+
+import { runCompactCommand } from '../src/channels/shared/compact-command.mjs';
+import {
+  HarnessClient,
+  HarnessRpcError,
+} from '../src/channels/shared/harness-client.mjs';
+import { createHarnessCommandExecutor } from '../plugin-src/host/harness-command-executor.mjs';
+
+function state(sessionId = 'session-one') {
+  return { sessionFor: () => sessionId };
+}
+
+test('compact command validates syntax and requires an existing conversation Session', async () => {
+  assert.equal(await runCompactCommand('hello', {}, state(), 'direct:one'), null);
+  assert.match(
+    (await runCompactCommand('/compact now', {}, state(), 'direct:one')).message,
+    /不带参数/,
+  );
+  assert.match(
+    (await runCompactCommand('/COMPACT', {}, state(null), 'direct:one')).message,
+    /还没有可压缩的会话/,
+  );
+  assert.match(
+    (await runCompactCommand('/compact', {}, state(), 'direct:one')).message,
+    /暂不支持/,
+  );
+});
+
+test('compact command renders Harness outcomes and never changes the command line', async () => {
+  const calls = [];
+  const harness = {
+    executeCommand: async (sessionId, line, options) => {
+      calls.push({ sessionId, line, options });
+      return {
+        commandId: 'command-one',
+        result: { kind: 'error', text: 'Compaction cancelled.' },
+      };
+    },
+  };
+  const signal = new AbortController().signal;
+  const result = await runCompactCommand(
+    ' /COMPACT ',
+    harness,
+    state(),
+    'direct:one',
+    { signal },
+  );
+
+  assert.equal(result.message, '上下文压缩已取消。');
+  assert.deepEqual(calls, [{
+    sessionId: 'session-one',
+    line: '/compact',
+    options: { signal },
+  }]);
+});
+
+test('compact command contains unavailable, busy, stale, and invalid command failures', async () => {
+  for (const [failure, pattern] of [
+    [{ code: 'session-not-found' }, /会话已不存在/],
+    [{ code: 'agent-busy' }, /正在生成回复/],
+    [{ code: 'workspace-session-stale' }, /状态已发生变化/],
+    [{ code: 'commands-unavailable' }, /暂不支持/],
+    [new Error('private internal detail'), /压缩失败/],
+  ]) {
+    const result = await runCompactCommand('/compact', {
+      executeCommand: async () => { throw failure; },
+    }, state(), 'direct:one');
+    assert.match(result.message, pattern);
+    assert.doesNotMatch(result.message, /private internal detail/);
+  }
+
+  assert.match((await runCompactCommand('/compact', {
+    executeCommand: async () => undefined,
+  }, state(), 'direct:one')).message, /未注册/);
+  assert.match((await runCompactCommand('/compact', {
+    executeCommand: async () => ({ commandId: 'bad', result: { kind: 'other' } }),
+  }, state(), 'direct:one')).message, /压缩失败/);
+});
+
+test('HarnessClient delegates command execution and normalizes Typert lookup failures', async () => {
+  const calls = [];
+  const client = new HarnessClient({
+    baseUrl: 'http://127.0.0.1:1',
+    workspace: '/tmp',
+    commandExecutor: async (...args) => {
+      calls.push(args);
+      return { commandId: 'command-one', result: { kind: 'success' } };
+    },
+  });
+  const signal = new AbortController().signal;
+  assert.deepEqual(await client.executeCommand('session-one', '/compact', { signal }), {
+    commandId: 'command-one',
+    result: { kind: 'success' },
+  });
+  assert.deepEqual(calls, [['session-one', '/compact', { signal }]]);
+
+  const unavailable = new HarnessClient({ baseUrl: 'http://127.0.0.1:1', workspace: '/tmp' });
+  await assert.rejects(unavailable.executeCommand('session-one', '/compact'), {
+    code: 'commands-unavailable',
+  });
+
+  const rejected = new HarnessClient({
+    baseUrl: 'http://127.0.0.1:1',
+    workspace: '/tmp',
+    commandExecutor: async () => {
+      const error = new Error('lookup rejected');
+      error.failure = { code: 'agent-busy', message: 'busy', details: { reason: 'turn active' } };
+      throw error;
+    },
+  });
+  await assert.rejects(
+    rejected.executeCommand('session-one', '/compact'),
+    (error) => error instanceof HarnessRpcError && error.code === 'agent-busy',
+  );
+});
+
+test('Host command executor invokes the commands Typert endpoint with the Session identity', async () => {
+  const requests = [];
+  const executor = createHarnessCommandExecutor({
+    typertGateway: { invoke: async (request) => {
+      requests.push(request);
+      return { commandId: 'command-one', result: { kind: 'success' } };
+    } },
+  });
+  const signal = new AbortController().signal;
+
+  assert.deepEqual(await executor('session-one', '/compact', { signal }), {
+    commandId: 'command-one',
+    result: { kind: 'success' },
+  });
+  assert.deepEqual(requests, [{
+    namespace: 'commands',
+    method: 'execute',
+    args: { agentId: 'session-one', line: '/compact' },
+    signal,
+  }]);
+  assert.equal(createHarnessCommandExecutor({}), undefined);
+  assert.throws(() => createHarnessCommandExecutor({}, 'invalid'), /must be a function/);
+});
+
+test('all nine production channels receive the Host command executor', async () => {
+  const productionFiles = [
+    'plugin-src/host/channels/feishu/production.mjs',
+    'plugin-src/host/channels/weixin/production.mjs',
+    'plugin-src/host/channels/dingtalk/production.mjs',
+    'plugin-src/host/channels/wecom/production.mjs',
+    'plugin-src/host/channels/qq/production.mjs',
+    'plugin-src/host/channels/slack/production.mjs',
+    'plugin-src/host/channels/shared/production.mjs',
+    'plugin-src/host/channels/whatsapp/production.mjs',
+  ];
+  for (const path of productionFiles) {
+    const source = await readFile(new URL(`../${path}`, import.meta.url), 'utf8');
+    assert.match(source, /createHarnessCommandExecutor\(ctx, internals\.commandExecutor\)/, path);
+    assert.match(source, /commandExecutor \? \{ commandExecutor \} : \{\}/, path);
+  }
+
+  for (const channel of [
+    'feishu', 'weixin', 'dingtalk', 'wecom', 'qq',
+    'slack', 'telegram', 'discord', 'whatsapp',
+  ]) {
+    const source = await readFile(
+      new URL(`../plugin-src/host/channels/${channel}/index.mjs`, import.meta.url),
+      'utf8',
+    );
+    assert.match(source, /'typertGateway'/, channel);
+  }
+});