import {z} from 'zod'

export type GetApiV1VoiceVoicesArgs = {provider?: ('elevenlabs' | 'inworld' | null) | undefined, language?: (string | null) | undefined, is_active?: (boolean | null) | undefined};

export type GetApiV1VoiceVoicesOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const voiceOut = z.object({id: z.string(), provider: z.enum(["elevenlabs", "inworld"]), external_id: z.string(), name: z.string(), description: z.string().nullable().optional(), preview_url: z.string().nullable().optional(), language: z.string().nullable().optional(), accent: z.string().nullable().optional(), category: z.string().nullable().optional(), labels: z.record(z.string(), z.string()).optional(), supported_models: z.array(z.string()).optional(), is_active: z.boolean().optional(), created_at: z.string(), updated_at: z.string()});

export const voiceListResponse = z.object({voices: z.array(voiceOut).optional(), total: z.number().int()});

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 /v1/voice/voices
 */
export const getApiV1VoiceVoices = async (args: GetApiV1VoiceVoicesArgs, options: GetApiV1VoiceVoicesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.provider != null) query.append("provider", String(args.provider))
if (args.language != null) query.append("language", String(args.language))
if (args.is_active != null) query.append("is_active", String(args.is_active))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/voice/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(voiceListResponse, await res.json())
};