import {z} from 'zod'

export type TenantId = string;

export type ImageBuffer = string;

export type MaxCandidates = number;

export type MinSimilarity = number;

export type SearchOptions = {maxCandidates?: MaxCandidates | undefined, minSimilariry?: MinSimilarity | undefined};

export type SearchImageBody = {image: ImageBuffer, options?: SearchOptions | undefined};

export type CreateApiSearchImageTenantIdArgs = {tenantId: TenantId, body: SearchImageBody};

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

export const galleryIndex = z.number().int();

export const similarity = z.number().gte(0).lte(100);

export const faceId = z.string();

export const searchItem = z.object({galleryIndex: galleryIndex.optional(), similarity: similarity.optional(), templateId: faceId.optional()});

export const searchResponse = z.array(searchItem);

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
};

/**
 * Busca un patrón biométrico, extraído de una imagen en bruto, entre los especímenes (rostros) almacenados en la base de datos, bajo el mismo tenantId.
 * 
 * POST /search/image/{tenantId}
 * 
 * Also accepts auth: ApiKeyAuth
 */
export const createApiSearchImageTenantId = async (args: CreateApiSearchImageTenantIdArgs, options: CreateApiSearchImageTenantIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/search/image/${encodeURIComponent(String(args.tenantId))}${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(searchResponse, await res.json())
};