import {z} from 'zod'

export type AI668FeatureComparisonRequest = {pn: string, task_id: string};

export type CreateApiAiFtoFeatureComparisonArgs = {body: AI668FeatureComparisonRequest};

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

export const aI668FeatureComparisonFeatureComparisonFinalResClaim = z.object({claim_num: z.number().int().optional(), claim_text: z.string().optional()});

export const aI668FeatureComparisonFeatureComparisonFinalResFeature = z.object({score: z.number().int().optional(), public_score: z.number().int().optional(), tech_feature: z.string().optional(), comparison_feature: z.string().optional()});

export const aI668FeatureComparisonFeatureComparisonFinalResItem = z.object({lang: z.string().optional(), claims: z.array(aI668FeatureComparisonFeatureComparisonFinalResClaim).optional(), document: z.string().optional(), features: z.array(aI668FeatureComparisonFeatureComparisonFinalResFeature).optional(), patent_id: z.string().optional(), public_score: z.number().optional()});

export const aI668FeatureComparisonFeatureComparisonResponseDTO = z.object({final_res: z.array(aI668FeatureComparisonFeatureComparisonFinalResItem).optional(), threshold: z.number().int().optional()});

export const aI668FeatureComparisonResponse = z.object({data: aI668FeatureComparisonFeatureComparisonResponseDTO.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
};

/**
 * AI66-8 FTO Search - Add Comparison Document or Patent
 * 
 * POST /ai/fto/feature/comparison
 */
export const createApiAiFtoFeatureComparison = async (args: CreateApiAiFtoFeatureComparisonArgs, options?: CreateApiAiFtoFeatureComparisonOptions) => {
const {baseUrl = "https://connect.patsnap.com", 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 = `${baseUrl.replace(/\/+$/, '')}/ai/fto/feature/comparison${query.size > 0 ? `?${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(aI668FeatureComparisonResponse, await res.json())
};