import {z} from 'zod'

export type SampleRate = 8000 | 16000 | 24000;

export type GetApiV1AiSpeechArgs = {speed?: number | undefined, conversational?: (boolean | null) | undefined, temperature?: (number | null) | undefined, top_k?: (number | null) | undefined, top_p?: (number | null) | undefined, length?: (number | null) | undefined, expressive?: (number | null) | undefined, quality?: (number | null) | undefined, solver?: (string | null) | undefined, text: string, voice: string, model?: ('aurora' | 'blizzard' | 'blizzard-2.0' | 'blizzard-2.1' | 'blizzard-dialogue') | undefined, language?: string | undefined, format?: ('aac' | 'mp3' | 'raw' | 'wav' | 'ulaw' | 'webm' | 'pcm_s16le' | 'pcm_f32le') | undefined, sample_rate?: (SampleRate | null) | undefined, seed?: number | undefined, return_timestamps?: boolean | undefined, delay_headers?: boolean | undefined, debug?: boolean | undefined, original_text?: (string | null) | undefined, original_language?: (string | null) | undefined, 'x-api-key'?: string | undefined};

export type GetApiV1AiSpeechOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const getApiV1AiSpeechResponse = z.unknown();

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
};

/**
 * Get Handler
 * 
 * GET /v1/ai/speech
 */
export const getApiV1AiSpeech = async (args: GetApiV1AiSpeechArgs, options: GetApiV1AiSpeechOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.speed != null) query.append("speed", String(args.speed))
if (args.conversational != null) query.append("conversational", String(args.conversational))
if (args.temperature != null) query.append("temperature", String(args.temperature))
if (args.top_k != null) query.append("top_k", String(args.top_k))
if (args.top_p != null) query.append("top_p", String(args.top_p))
if (args.length != null) query.append("length", String(args.length))
if (args.expressive != null) query.append("expressive", String(args.expressive))
if (args.quality != null) query.append("quality", String(args.quality))
if (args.solver != null) query.append("solver", String(args.solver))
if (args.text != null) query.append("text", String(args.text))
if (args.voice != null) query.append("voice", String(args.voice))
if (args.model != null) query.append("model", String(args.model))
if (args.language != null) query.append("language", String(args.language))
if (args.format != null) query.append("format", String(args.format))
if (args.sample_rate != null) query.append("sample_rate", String(args.sample_rate))
if (args.seed != null) query.append("seed", String(args.seed))
if (args.return_timestamps != null) query.append("return_timestamps", String(args.return_timestamps))
if (args.delay_headers != null) query.append("delay_headers", String(args.delay_headers))
if (args.debug != null) query.append("debug", String(args.debug))
if (args.original_text != null) query.append("original_text", String(args.original_text))
if (args.original_language != null) query.append("original_language", String(args.original_language))
if (args['x-api-key'] != null) headers.set("x-api-key", String(args['x-api-key']))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/ai/speech${query.size > 0 ? `?${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(getApiV1AiSpeechResponse, await res.json())
};