All files / web/src/lib/audio voices.ts

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export interface VoiceProviderConfig {
  id: string
  name: string
  models: VoiceModelConfig[]
}

export interface VoiceModelConfig {
  id: string
  name: string
  /** File format clips are persisted as, e.g. "mp3". Omit for non-persisted sources. */
  format: string
  voices: readonly string[]
}

export const VOICE_PROVIDERS: readonly VoiceProviderConfig[] = [
  {
    id: 'openai',
    name: 'OpenAI',
    models: [
      {
        id: 'tts-1',
        name: 'tts-1',
        format: 'mp3',
        voices: [
          'alloy',
          'ash',
          'ballad',
          'coral',
          'echo',
          'fable',
          'nova',
          'onyx',
          'sage',
          'shimmer',
        ],
      },
    ],
  },
] as const

/** Flat list of all voice names across all providers/models */
export const ALL_VOICES = VOICE_PROVIDERS.flatMap((p) => p.models.flatMap((m) => m.voices))

export type VoiceName = (typeof ALL_VOICES)[number]

/** Look up provider + model metadata for a voice name */
export function getVoiceMeta(voiceName: string): {
  provider: VoiceProviderConfig
  model: VoiceModelConfig
} | null {
  for (const provider of VOICE_PROVIDERS) {
    for (const model of provider.models) {
      if (model.voices.includes(voiceName)) {
        return { provider, model }
      }
    }
  }
  return null
}