lib/config.ts

export const VALID_MODELS = {
  ACE_STEP: "ACE-Step/ACE-Step-v1-3.5B",
  DREAM_VAE: "daydreamlive/DreamVAE",
};

export function validateModel(model: string) {
  return Object.values(VALID_MODELS).includes(model);
}

export function validateApiKey(key?: string) {
  return typeof key === "string" && key.trim().length > 0;
}

// lib/types.ts
export type VoiceType = "Random" | "Male" | "Female";

export interface GenerateRequestBody {
  stylePrompt: string;
  lyricPrompt?: string;
  voice: VoiceType;
  durationSeconds?: number;
}

export interface EditRequestBody {
  operation: "cover" | "extend" | "swap_vocal" | "crop";
  trackId: string;
  params?: Record<string, unknown>;
}

// lib/cache.ts
const genCache = new Map<string, any>();

export function getCachedGeneration(key: string) {
  return genCache.get(key);
}

export function setCachedGeneration(key: string, value: any) {
  genCache.set(key, value);
}