claude-code with OpenAI mode fix

src/utils/model/providers.ts

@@ -0,0 +1,48 @@
+import type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from '../../services/analytics/index.js'
+import { getInitialSettings } from '../settings/settings.js'
+import { isEnvTruthy } from '../envUtils.js'
+
+export type APIProvider = 'firstParty' | 'bedrock' | 'vertex' | 'foundry' | 'openai'
+
+export function getAPIProvider(): APIProvider {
+  // 1. Check settings.json modelType field (highest priority)
+  const modelType = getInitialSettings().modelType
+  if (modelType === 'openai') return 'openai'
+
+  // 2. Check environment variables (backward compatibility)
+  return isEnvTruthy(process.env.CLAUDE_CODE_USE_OPENAI)
+    ? 'openai'
+    : isEnvTruthy(process.env.CLAUDE_CODE_USE_BEDROCK)
+      ? 'bedrock'
+      : isEnvTruthy(process.env.CLAUDE_CODE_USE_VERTEX)
+        ? 'vertex'
+        : isEnvTruthy(process.env.CLAUDE_CODE_USE_FOUNDRY)
+          ? 'foundry'
+          : 'firstParty'
+}
+
+export function getAPIProviderForStatsig(): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS {
+  return getAPIProvider() as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
+}
+
+/**
+ * Check if ANTHROPIC_BASE_URL is a first-party Anthropic API URL.
+ * Returns true if not set (default API) or points to api.anthropic.com
+ * (or api-staging.anthropic.com for ant users).
+ */
+export function isFirstPartyAnthropicBaseUrl(): boolean {
+  const baseUrl = process.env.ANTHROPIC_BASE_URL
+  if (!baseUrl) {
+    return true
+  }
+  try {
+    const host = new URL(baseUrl).host
+    const allowedHosts = ['api.anthropic.com']
+    if (process.env.USER_TYPE === 'ant') {
+      allowedHosts.push('api-staging.anthropic.com')
+    }
+    return allowedHosts.includes(host)
+  } catch {
+    return false
+  }
+}