import {z} from 'zod'

export type VoiceGender = 'female' | 'male' | 'neutral';

export type GetApiV2AudioVoicesArgs = {page_size?: number | undefined, page_token?: (string | null) | undefined, type?: ('all' | 'custom' | 'preset') | undefined, gender?: (Array<VoiceGender> | null) | undefined, language?: (Array<string> | null) | undefined, query?: (string | null) | undefined};

export type GetApiV2AudioVoicesOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const voiceKind = z.enum(["ivc", "pvc"]);

export const voiceResponse = z.object({name: z.string(), slug: z.string().nullable().optional(), languages: z.array(z.string()).optional(), gender: z.string().nullable().optional(), age: z.number().int().nullable().optional(), tags: z.array(z.string()).nullable().optional(), color: z.string().nullable().optional(), description: z.string().max(500).nullable().optional(), retention_notice: z.number().int().optional(), id: z.string(), created_at: z.string(), user_id: z.string().nullable(), trimmed_seconds: z.number().nullable().optional(), kind: voiceKind.optional(), type: z.enum(["preset", "custom"])});

export const voiceListPage = z.object({data: z.array(voiceResponse), next_page_token: z.string().nullable().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, cursor-paginated
 * 
 * GET /v2/audio/voices
 */
export const getApiV2AudioVoices = async (args: GetApiV2AudioVoicesArgs, options?: GetApiV2AudioVoicesOptions) => {
const {baseUrl = "https://api.mistral.ai", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.page_token != null) query.append("page_token", String(args.page_token))
if (args.type != null) query.append("type", String(args.type))
for (const item of args.gender ?? []) query.append("gender", String(item))
for (const item of args.language ?? []) query.append("language", String(item))
if (args.query != null) query.append("query", String(args.query))
if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/audio/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(voiceListPage, await res.json())
};