import {z} from 'zod'

export type GetApiSearchPatentClassificationHelperSearchArgs = {keyword: string, type: string};

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

export const p072ClassificationHelperSearchLangDescMap = z.object({cn: z.string().optional(), en: z.string().optional()});

export const p072ClassificationHelperSearchClassificationTree = z.object({id: z.string().optional(), children: z.array(z.unknown()).optional(), lang_desc_map: p072ClassificationHelperSearchLangDescMap.optional()});

export const p072ClassificationHelperSearchQueryResults = z.object({cls_tree: p072ClassificationHelperSearchClassificationTree.optional()});

export const p072ClassificationHelperSearchClassificationSearchHelperResponse = z.object({h_words: z.array(z.unknown()).optional(), has_children: z.string().optional(), query_results: z.array(p072ClassificationHelperSearchQueryResults).optional()});

export const p072ClassificationHelperSearchResponse = z.object({data: p072ClassificationHelperSearchClassificationSearchHelperResponse.optional(), status: z.boolean(), error_msg: z.string().optional(), error_code: z.number().int()});

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
};

/**
 * P072 Classification number search assistant interface
 * 
 * GET /search/patent/classification/helper-search
 */
export const getApiSearchPatentClassificationHelperSearch = async (args: GetApiSearchPatentClassificationHelperSearchArgs, options?: GetApiSearchPatentClassificationHelperSearchOptions) => {
const {baseUrl = "https://connect.patsnap.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.keyword != null) query.append("keyword", String(args.keyword))
if (args.type != null) query.append("type", String(args.type))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/search/patent/classification/helper-search${query.size > 0 ? `?${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(p072ClassificationHelperSearchResponse, await res.json())
};