import {z} from 'zod'

export type CreateApiHmdsScannerArgs = {body: {instrument?: string | undefined, locations?: string | undefined, scanCode?: string | undefined, secType?: string | undefined, filters?: (Array<{code?: string | undefined, value?: boolean | undefined}>) | undefined}};

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

export const scannerResult = z.object({total: z.number().int().optional(), size: z.number().int().optional(), offset: z.number().int().optional(), scanTime: z.string().optional(), id: z.number().optional(), position: z.string().optional(), Contracts: z.object({Contract: z.array(z.object({inScanTime: z.string().optional(), distance: z.number().int().optional(), contractID: z.number().int().optional()})).optional()}).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
};

/**
 * Run Scanner (Beta)
 * 
 * POST /hmds/scanner
 */
export const createApiHmdsScanner = async (args: CreateApiHmdsScannerArgs, options?: CreateApiHmdsScannerOptions) => {
const {baseUrl = "http://localhost:5000/v1/api", fetch: fetchFn = fetch} = options ?? {}

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

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

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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