Normalize endpoint API root handling

frontend/src/features/providers/components/__tests__/endpoint-default-paths.spec.ts

@@ -1,29 +1,41 @@
 import { describe, expect, it } from 'vitest'
 
-import { getDefaultEndpointPath } from '../endpoint-default-paths'
+import { getDefaultEndpointBaseUrl, getDefaultEndpointPath } from '../endpoint-default-paths'
 
 const apiFormats = [
   { value: 'openai:chat', default_path: '/v1/chat/completions' },
   { value: 'gemini:generate_content', default_path: '/v1beta/models/{model}:{action}' },
-  { value: 'gemini:embedding', default_path: '/v1beta/models/{model}:{action}' },
+  { value: 'gemini:embedding', default_path: '/v1beta/models/{model}:embedContent' },
+  { value: 'gemini:video', default_path: '/v1beta/models/{model}:predictLongRunning' },
   { value: 'openai:responses', default_path: '/v1/responses' },
   { value: 'openai:embedding', default_path: '/v1/embeddings' },
+  { value: 'openai:rerank', default_path: '/v1/rerank' },
+  { value: 'openai:image', default_path: '/v1/images/generations' },
+  { value: 'openai:video', default_path: '/v1/videos' },
+  { value: 'jina:embedding', default_path: '/v1/embeddings' },
+  { value: 'jina:rerank', default_path: '/v1/rerank' },
   { value: 'claude:messages', default_path: '/v1/messages' },
 ]
 
 describe('endpoint default paths', () => {
-  it('uses Gemini Developer API paths for custom Gemini endpoints', () => {
+  it('uses Gemini Developer API resource paths for custom Gemini endpoints', () => {
     expect(getDefaultEndpointPath({
       apiFormat: 'gemini:generate_content',
       providerType: 'custom',
       apiFormats,
-    })).toBe('/v1beta/models/{model}:{action}')
+    })).toBe('/models/{model}:{action}')
 
     expect(getDefaultEndpointPath({
       apiFormat: 'gemini:embedding',
       providerType: 'custom',
       apiFormats,
-    })).toBe('/v1beta/models/{model}:{action}')
+    })).toBe('/models/{model}:embedContent')
+
+    expect(getDefaultEndpointPath({
+      apiFormat: 'gemini:video',
+      providerType: 'custom',
+      apiFormats,
+    })).toBe('/models/{model}:predictLongRunning')
   })
 
   it('uses Vertex AI project/location paths for Vertex provider Gemini endpoints', () => {
@@ -56,7 +68,7 @@ describe('endpoint default paths', () => {
     })).toBe('/responses')
   })
 
-  it('drops /v1 from OpenAI-compatible defaults when base URL includes a path', () => {
+  it('drops /v1 from API-root defaults because base URL is the API root', () => {
     expect(getDefaultEndpointPath({
       apiFormat: 'openai:chat',
       providerType: 'custom',
@@ -71,6 +83,41 @@ describe('endpoint default paths', () => {
       apiFormats,
     })).toBe('/embeddings')
 
+    expect(getDefaultEndpointPath({
+      apiFormat: 'openai:rerank',
+      providerType: 'custom',
+      baseUrl: 'https://proxy.example.com/api?tenant=demo',
+      apiFormats,
+    })).toBe('/rerank')
+
+    expect(getDefaultEndpointPath({
+      apiFormat: 'openai:image',
+      providerType: 'custom',
+      baseUrl: 'https://proxy.example.com/api',
+      apiFormats,
+    })).toBe('/images/generations')
+
+    expect(getDefaultEndpointPath({
+      apiFormat: 'openai:video',
+      providerType: 'custom',
+      baseUrl: 'https://proxy.example.com/api',
+      apiFormats,
+    })).toBe('/videos')
+
+    expect(getDefaultEndpointPath({
+      apiFormat: 'jina:embedding',
+      providerType: 'custom',
+      baseUrl: 'https://api.jina.ai/v1',
+      apiFormats,
+    })).toBe('/embeddings')
+
+    expect(getDefaultEndpointPath({
+      apiFormat: 'jina:rerank',
+      providerType: 'custom',
+      baseUrl: 'https://api.jina.ai/v1',
+      apiFormats,
+    })).toBe('/rerank')
+
     expect(getDefaultEndpointPath({
       apiFormat: 'openai:chat',
       providerType: 'custom',
@@ -83,7 +130,7 @@ describe('endpoint default paths', () => {
       providerType: 'custom',
       baseUrl: 'https://proxy.example.com',
       apiFormats,
-    })).toBe('/v1/chat/completions')
+    })).toBe('/chat/completions')
   })
 
   it('drops /v1 from OpenAI-compatible defaults when base URL already includes a known API root', () => {
@@ -102,7 +149,7 @@ describe('endpoint default paths', () => {
     })).toBe('/responses')
   })
 
-  it('keeps /v1 for Claude Messages defaults unless base URL already ends with v1', () => {
+  it('drops /v1 from Claude Messages defaults because base URL is the API root', () => {
     expect(getDefaultEndpointPath({
       apiFormat: 'claude:messages',
       providerType: 'custom',
@@ -115,13 +162,80 @@ describe('endpoint default paths', () => {
       providerType: 'custom',
       baseUrl: 'https://proxy.example.com/api',
       apiFormats,
-    })).toBe('/v1/messages')
+    })).toBe('/messages')
 
     expect(getDefaultEndpointPath({
       apiFormat: 'claude:messages',
       providerType: 'custom',
       baseUrl: 'https://proxy.example.com/anthropic',
       apiFormats,
-    })).toBe('/v1/messages')
+    })).toBe('/messages')
+  })
+
+  it('defaults API-root base URLs to the format version when using a provider website', () => {
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:chat',
+      baseUrl: 'https://api.openai.com',
+    })).toBe('https://api.openai.com/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:responses',
+      baseUrl: 'https://dashscope.aliyuncs.com/compatible-mode',
+    })).toBe('https://dashscope.aliyuncs.com/compatible-mode/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'claude:messages',
+      baseUrl: 'https://api.anthropic.com',
+    })).toBe('https://api.anthropic.com/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:embedding',
+      baseUrl: 'https://api.openai.com',
+    })).toBe('https://api.openai.com/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:image',
+      baseUrl: 'https://api.openai.com',
+    })).toBe('https://api.openai.com/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:video',
+      baseUrl: 'https://api.openai.com',
+    })).toBe('https://api.openai.com/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'jina:embedding',
+      baseUrl: 'https://api.jina.ai',
+    })).toBe('https://api.jina.ai/v1')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'gemini:generate_content',
+      baseUrl: 'https://generativelanguage.googleapis.com',
+    })).toBe('https://generativelanguage.googleapis.com/v1beta')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'gemini:embedding',
+      baseUrl: 'https://generativelanguage.googleapis.com',
+    })).toBe('https://generativelanguage.googleapis.com/v1beta')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'gemini:video',
+      baseUrl: 'https://generativelanguage.googleapis.com',
+    })).toBe('https://generativelanguage.googleapis.com/v1beta')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:chat',
+      baseUrl: 'https://open.bigmodel.cn/api/coding/paas/v4',
+    })).toBe('https://open.bigmodel.cn/api/coding/paas/v4')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:chat',
+      baseUrl: 'https://generativelanguage.googleapis.com/v1beta/openai',
+    })).toBe('https://generativelanguage.googleapis.com/v1beta/openai')
+
+    expect(getDefaultEndpointBaseUrl({
+      apiFormat: 'openai:chat',
+      baseUrl: 'https://api.deepseek.com',
+    })).toBe('https://api.deepseek.com')
   })
 })