export const DEFAULT_OPENAI_BASE_URL = "https://api.openai.com/v1"; export const DEFAULT_GEMINI_BASE_URL = "https://generativelanguage.googleapis.com"; export const DEFAULT_ELEVENLABS_BASE_URL = "https://api.elevenlabs.io";

export const OPENAI_REALTIME_DEFAULT_SESSION_MODEL = "gpt-realtime"; export const OPENAI_REALTIME_SESSION_MODEL_OPTIONS = Object.freeze([ "gpt-realtime", "gpt-realtime-1.5", "gpt-realtime-mini", "gpt-4o-realtime-preview", "gpt-4o-mini-realtime-preview" ]); const OPENAI_REALTIME_SUPPORTED_SESSION_MODELS = new Set(OPENAI_REALTIME_SESSION_MODEL_OPTIONS);

export const OPENAI_REALTIME_DEFAULT_TRANSCRIPTION_MODEL = "gpt-4o-mini-transcribe"; const OPENAI_REALTIME_SUPPORTED_TRANSCRIPTION_MODELS = new Set([ "whisper-1", "gpt-4o-transcribe-latest", "gpt-4o-transcribe", "gpt-4o-mini-transcribe-2025-12-15", "gpt-4o-mini-transcribe" ]);

export function normalizeOpenAiBaseUrl(value: unknown) { const raw = String(value || DEFAULT_OPENAI_BASE_URL).trim(); const normalized = raw || DEFAULT_OPENAI_BASE_URL; return normalized.replace(//+$/, ""); }

export function normalizeOpenAiRealtimeTranscriptionModel( value: unknown, fallback = OPENAI_REALTIME_DEFAULT_TRANSCRIPTION_MODEL ) { const normalized = String(value || "").trim() || String(fallback || "").trim() || OPENAI_REALTIME_DEFAULT_TRANSCRIPTION_MODEL; return OPENAI_REALTIME_SUPPORTED_TRANSCRIPTION_MODELS.has(normalized) ? normalized : OPENAI_REALTIME_DEFAULT_TRANSCRIPTION_MODEL; }

export function normalizeOpenAiRealtimeSessionModel( value: unknown, fallback = OPENAI_REALTIME_DEFAULT_SESSION_MODEL ) { const normalized = String(value || "").trim() || String(fallback || "").trim() || OPENAI_REALTIME_DEFAULT_SESSION_MODEL; return OPENAI_REALTIME_SUPPORTED_SESSION_MODELS.has(normalized) ? normalized : OPENAI_REALTIME_DEFAULT_SESSION_MODEL; }

export function normalizeGeminiBaseUrl(value: unknown) { const raw = String(value || DEFAULT_GEMINI_BASE_URL).trim(); if (!raw) return DEFAULT_GEMINI_BASE_URL;

try { const parsed = new URL(raw); if (parsed.protocol !== "http:" && parsed.protocol !== "https:") { return DEFAULT_GEMINI_BASE_URL; } return ${parsed.protocol}//${parsed.host}; } catch { return DEFAULT_GEMINI_BASE_URL; } }

export function normalizeElevenLabsBaseUrl(value: unknown) { const target = String(value || DEFAULT_ELEVENLABS_BASE_URL).trim() || DEFAULT_ELEVENLABS_BASE_URL; try { const parsed = new URL(target); if (parsed.protocol !== "http:" && parsed.protocol !== "https:") { return DEFAULT_ELEVENLABS_BASE_URL; } return ${parsed.protocol}//${parsed.host}; } catch { return DEFAULT_ELEVENLABS_BASE_URL; } }