fix: add Perplexity provider support and update API host formatting (#11162)

* feat: add Perplexity provider support and update API host formatting

- Introduced `isPerplexityProvider` function to identify Perplexity providers.
- Updated `formatProviderApiHost` to handle Perplexity provider API host formatting.
- Added unit tests for Perplexity provider configuration to ensure correct API host formatting behavior.

* fix: add 'perplexity' to unsupported API version providers list

src/renderer/src/aiCore/provider/__tests__/providerConfig.test.ts

@@ -39,6 +39,7 @@ vi.mock('@renderer/config/providers', async (importOriginal) => {
   return {
     ...actual,
     isCherryAIProvider: vi.fn(),
+    isPerplexityProvider: vi.fn(),
     isAnthropicProvider: vi.fn(() => false),
     isAzureOpenAIProvider: vi.fn(() => false),
     isGeminiProvider: vi.fn(() => false),
@@ -52,7 +53,7 @@ vi.mock('@renderer/hooks/useVertexAI', () => ({
   createVertexProvider: vi.fn()
 }))
 
-import { isCherryAIProvider } from '@renderer/config/providers'
+import { isCherryAIProvider, isPerplexityProvider } from '@renderer/config/providers'
 import { getProviderByModel } from '@renderer/services/AssistantService'
 import type { Model, Provider } from '@renderer/types'
 import { formatApiHost } from '@renderer/utils/api'
@@ -97,6 +98,16 @@ const createCherryAIProvider = (): Provider => ({
   isSystem: false
 })
 
+const createPerplexityProvider = (): Provider => ({
+  id: 'perplexity',
+  type: 'openai',
+  name: 'Perplexity',
+  apiKey: 'test-key',
+  apiHost: 'https://api.perplexity.ai',
+  models: [],
+  isSystem: false
+})
+
 describe('Copilot responses routing', () => {
   beforeEach(() => {
     ;(globalThis as any).window = {
@@ -195,3 +206,70 @@ describe('CherryAI provider configuration', () => {
     expect(actualProvider.apiHost).toBe('')
   })
 })
+
+describe('Perplexity provider configuration', () => {
+  beforeEach(() => {
+    ;(globalThis as any).window = {
+      ...(globalThis as any).window,
+      keyv: createWindowKeyv()
+    }
+    vi.clearAllMocks()
+  })
+
+  it('formats Perplexity provider apiHost with false parameter', () => {
+    const provider = createPerplexityProvider()
+    const model = createModel('sonar', 'Sonar', 'perplexity')
+
+    // Mock the functions to simulate Perplexity provider detection
+    vi.mocked(isCherryAIProvider).mockReturnValue(false)
+    vi.mocked(isPerplexityProvider).mockReturnValue(true)
+    vi.mocked(getProviderByModel).mockReturnValue(provider)
+
+    // Call getActualProvider which should trigger formatProviderApiHost
+    const actualProvider = getActualProvider(model)
+
+    // Verify that formatApiHost was called with false as the second parameter
+    expect(formatApiHost).toHaveBeenCalledWith('https://api.perplexity.ai', false)
+    expect(actualProvider.apiHost).toBe('https://api.perplexity.ai')
+  })
+
+  it('does not format non-Perplexity provider with false parameter', () => {
+    const provider = {
+      id: 'openai',
+      type: 'openai',
+      name: 'OpenAI',
+      apiKey: 'test-key',
+      apiHost: 'https://api.openai.com',
+      models: [],
+      isSystem: false
+    } as Provider
+    const model = createModel('gpt-4', 'GPT-4', 'openai')
+
+    // Mock the functions to simulate non-Perplexity provider
+    vi.mocked(isCherryAIProvider).mockReturnValue(false)
+    vi.mocked(isPerplexityProvider).mockReturnValue(false)
+    vi.mocked(getProviderByModel).mockReturnValue(provider)
+
+    // Call getActualProvider
+    const actualProvider = getActualProvider(model)
+
+    // Verify that formatApiHost was called with default parameters (true)
+    expect(formatApiHost).toHaveBeenCalledWith('https://api.openai.com')
+    expect(actualProvider.apiHost).toBe('https://api.openai.com/v1')
+  })
+
+  it('handles Perplexity provider with empty apiHost', () => {
+    const provider = createPerplexityProvider()
+    provider.apiHost = ''
+    const model = createModel('sonar', 'Sonar', 'perplexity')
+
+    vi.mocked(isCherryAIProvider).mockReturnValue(false)
+    vi.mocked(isPerplexityProvider).mockReturnValue(true)
+    vi.mocked(getProviderByModel).mockReturnValue(provider)
+
+    const actualProvider = getActualProvider(model)
+
+    expect(formatApiHost).toHaveBeenCalledWith('', false)
+    expect(actualProvider.apiHost).toBe('')
+  })
+})

src/renderer/src/aiCore/provider/providerConfig.ts

@@ -11,7 +11,8 @@ import {
   isAzureOpenAIProvider,
   isCherryAIProvider,
   isGeminiProvider,
-  isNewApiProvider
+  isNewApiProvider,
+  isPerplexityProvider
 } from '@renderer/config/providers'
 import {
   getAwsBedrockAccessKeyId,
@@ -103,6 +104,8 @@ function formatProviderApiHost(provider: Provider): Provider {
     formatted.apiHost = formatVertexApiHost(formatted)
   } else if (isCherryAIProvider(formatted)) {
     formatted.apiHost = formatApiHost(formatted.apiHost, false)
+  } else if (isPerplexityProvider(formatted)) {
+    formatted.apiHost = formatApiHost(formatted.apiHost, false)
   } else {
     formatted.apiHost = formatApiHost(formatted.apiHost)
   }

src/renderer/src/config/providers.ts

@@ -1490,6 +1490,10 @@ export function isCherryAIProvider(provider: Provider): boolean {
   return provider.id === 'cherryai'
 }
 
+export function isPerplexityProvider(provider: Provider): boolean {
+  return provider.id === 'perplexity'
+}
+
 /**
  * 判断是否为 OpenAI 兼容的提供商
  * @param {Provider} provider 提供商对象
@@ -1515,7 +1519,7 @@ export function isGeminiProvider(provider: Provider): boolean {
   return provider.type === 'gemini'
 }
 
-const NOT_SUPPORT_API_VERSION_PROVIDERS = ['github', 'copilot'] as const satisfies SystemProviderId[]
+const NOT_SUPPORT_API_VERSION_PROVIDERS = ['github', 'copilot', 'perplexity'] as const satisfies SystemProviderId[]
 
 export const isSupportAPIVersionProvider = (provider: Provider) => {
   if (isSystemProvider(provider)) {