import {z} from 'zod'

export type GenderPresentation = 'masculine' | 'feminine' | 'gender_neutral';

export type VoiceExpandOptions = 'preview_file_url';

export type GetApiVoicesArgs = {'Cartesia-Version': '2026-03-01', limit?: (number | null) | undefined, starting_after?: (string | null) | undefined, ending_before?: (string | null) | undefined, q?: (string | null) | undefined, is_owner?: (boolean | null) | undefined, gender?: GenderPresentation | undefined, language?: (string | null) | undefined, 'expand[]'?: (Array<VoiceExpandOptions> | null) | undefined};

export type GetApiVoicesOptions = {baseUrl?: string | undefined, APIKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const voiceId = z.string();

export const genderPresentation = z.enum(["masculine", "feminine", "gender_neutral"]);

export const voiceLanguage = z.string();

export const voiceCountry = z.string();

export const voice = z.object({id: voiceId, is_owner: z.boolean(), access: z.object({type: z.enum(["private", "public"]), visibility: z.enum(["owner", "all"])}), name: z.string(), tagline: z.string(), description: z.string(), gender: genderPresentation.optional(), created_at: z.string(), preview_file_url: z.string().nullable().optional(), language: voiceLanguage, country: voiceCountry.optional(), is_pro: z.boolean().optional(), is_public: z.boolean(), mode: z.string().optional()});

export const getVoicesResponse = z.object({data: z.array(voice), has_more: z.boolean(), next_page: voiceId.optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * List Voices
 * 
 * GET /voices
 */
export const getApiVoices = async (args: GetApiVoicesArgs, options?: GetApiVoicesOptions) => {
const {baseUrl = "https://api.cartesia.ai", fetch: fetchFn = fetch, APIKeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args['Cartesia-Version'] != null) headers.set("Cartesia-Version", String(args['Cartesia-Version']))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.starting_after != null) query.append("starting_after", String(args.starting_after))
if (args.ending_before != null) query.append("ending_before", String(args.ending_before))
if (args.q != null) query.append("q", String(args.q))
if (args.is_owner != null) query.append("is_owner", String(args.is_owner))
if (args.gender != null) query.append("gender", String(args.gender))
if (args.language != null) query.append("language", String(args.language))
for (const item of args['expand[]'] ?? []) query.append("expand[]", String(item))
if (APIKeyAuth !== undefined) headers.set('authorization', `Bearer ${APIKeyAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/voices${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getVoicesResponse, await res.json())
};