import {z} from 'zod'

export type CreateApiApiV1ChatgptArgs = {attachments: Array<string>, jobType: string, referenceNo?: string | undefined, query?: string | undefined, json?: string | undefined};

export type CreateApiApiV1ChatgptOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiApiV1ChatgptResponse = z.record(z.string(), 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
};

/**
 * POST /api/v1/chatgpt
 */
export const createApiApiV1Chatgpt = async (args: CreateApiApiV1ChatgptArgs, options?: CreateApiApiV1ChatgptOptions) => {
const {baseUrl = "https://api-docs.gosure.ai", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

for (const item of args.attachments ?? []) query.append("attachments", String(item))
if (args.jobType != null) query.append("jobType", String(args.jobType))
if (args.referenceNo != null) query.append("referenceNo", String(args.referenceNo))
if (args.query != null) query.append("query", String(args.query))
if (args.json != null) query.append("json", String(args.json))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/chatgpt${query.size > 0 ? `?${query}` : ''}`

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

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

return validateResponse(createApiApiV1ChatgptResponse, await res.json())
};