refactor/channel & ipc (#349)

Co-authored-by: paisley <8197966+su8su@users.noreply.github.com>
Co-authored-by: zuolingxuan <zuolingxuan@bytedance.com>

tests/unit/provider-model-sync.test.ts

@@ -0,0 +1,89 @@
+import { describe, expect, it } from 'vitest';
+import { buildNonOAuthAgentProviderUpdate, getModelIdFromRef } from '@electron/main/provider-model-sync';
+import type { ProviderConfig } from '@electron/utils/secure-storage';
+
+function providerConfig(overrides: Partial<ProviderConfig>): ProviderConfig {
+  return {
+    id: 'provider-id',
+    name: 'Provider',
+    type: 'moonshot',
+    enabled: true,
+    createdAt: '2026-03-09T00:00:00.000Z',
+    updatedAt: '2026-03-09T00:00:00.000Z',
+    ...overrides,
+  };
+}
+
+describe('provider-model-sync', () => {
+  it('extracts model ID from provider/model refs', () => {
+    expect(getModelIdFromRef('moonshot/kimi-k2.5', 'moonshot')).toBe('kimi-k2.5');
+    expect(getModelIdFromRef('kimi-k2.5', 'moonshot')).toBe('kimi-k2.5');
+    expect(getModelIdFromRef(undefined, 'moonshot')).toBeUndefined();
+  });
+
+  it('builds models.json update payload for moonshot default switch', () => {
+    const payload = buildNonOAuthAgentProviderUpdate(
+      providerConfig({ type: 'moonshot', id: 'moonshot' }),
+      'moonshot',
+      'moonshot/kimi-k2.5',
+    );
+
+    expect(payload).toEqual({
+      providerKey: 'moonshot',
+      entry: {
+        baseUrl: 'https://api.moonshot.cn/v1',
+        api: 'openai-completions',
+        apiKey: 'MOONSHOT_API_KEY',
+        models: [{ id: 'kimi-k2.5', name: 'kimi-k2.5' }],
+      },
+    });
+  });
+
+  it('prefers provider custom baseUrl and omits models when modelRef is missing', () => {
+    const payload = buildNonOAuthAgentProviderUpdate(
+      providerConfig({
+        type: 'ark',
+        id: 'ark',
+        baseUrl: 'https://custom-ark.example.com/v3',
+      }),
+      'ark',
+      undefined,
+    );
+
+    expect(payload).toEqual({
+      providerKey: 'ark',
+      entry: {
+        baseUrl: 'https://custom-ark.example.com/v3',
+        api: 'openai-completions',
+        apiKey: 'ARK_API_KEY',
+        models: [],
+      },
+    });
+  });
+
+  it('returns null for oauth and multi-instance providers', () => {
+    expect(
+      buildNonOAuthAgentProviderUpdate(
+        providerConfig({ type: 'qwen-portal', id: 'qwen-portal' }),
+        'qwen-portal',
+        'qwen-portal/coder-model',
+      ),
+    ).toBeNull();
+
+    expect(
+      buildNonOAuthAgentProviderUpdate(
+        providerConfig({ type: 'custom', id: 'custom-123' }),
+        'custom-123',
+        'custom-123/model',
+      ),
+    ).toBeNull();
+
+    expect(
+      buildNonOAuthAgentProviderUpdate(
+        providerConfig({ type: 'ollama', id: 'ollama' }),
+        'ollama',
+        'ollama/qwen3:latest',
+      ),
+    ).toBeNull();
+  });
+});