import {z} from 'zod'

export type AI371InitCnipaRequest = {claim: string, disclosure: string};

export type CreateApiAiSpecificationInitCnipaArgs = {body: AI371InitCnipaRequest};

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

export const aI371InitCnipaEmbodimentOutlineItem = z.object({text: z.string().optional(), type: z.string().optional(), label: z.string().optional(), claim_text: z.string().optional(), claim_numbers: z.array(z.unknown()).optional(), embodiment_number: z.number().int().optional(), reference_embodiment_number: z.number().int().optional()});

export const aI371InitCnipaSpecificationInitResponse = z.object({status: z.number().int().optional(), benefit: z.string().optional(), task_id: z.string(), category: z.string().optional(), classification: z.array(z.unknown()).optional(), technical_methods: z.string().optional(), technical_problem: z.string().optional(), embodiment_outline: z.array(aI371InitCnipaEmbodimentOutlineItem).optional()});

export const aI371InitCnipaResponse = z.object({data: aI371InitCnipaSpecificationInitResponse.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
};

/**
 * AI37-1 Patent Drafting (CNIPA) - Initialization Summary
 * 
 * POST /ai/specification/init/cnipa
 */
export const createApiAiSpecificationInitCnipa = async (args: CreateApiAiSpecificationInitCnipaArgs, options?: CreateApiAiSpecificationInitCnipaOptions) => {
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/specification/init/cnipa${query.size > 0 ? `?${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(aI371InitCnipaResponse, await res.json())
};