import {z} from 'zod'

export type OcrPayload = {document1: string, document2?: string | undefined, name?: string | undefined};

export type CreateApiV1DocumentsExtractionIndPancardArgs = {body: OcrPayload};

export type CreateApiV1DocumentsExtractionIndPancardOptions = {baseUrl: string, Oauth2ClientCredentials?: string | undefined, fetch?: typeof fetch | undefined};

export const pANCARDDOCUMENTDATA = z.object({age: z.number().int(), date_of_birth: z.string(), date_of_issue: z.string(), fathers_name: z.string(), id_number: z.string(), is_scanned: z.boolean(), minor: z.boolean(), name_on_card: z.string(), pan_type: z.string()});

export const rESPONSEPANDOCUMENTEXTRACTION = z.object({data: pANCARDDOCUMENTDATA, message: z.string().optional(), transaction_id: z.string().optional(), code: z.number().int().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
};

/**
 * Ind Pan Ocr
 * 
 * POST /v1/documents/extraction/ind_pancard
 */
export const createApiV1DocumentsExtractionIndPancard = async (args: CreateApiV1DocumentsExtractionIndPancardArgs, options: CreateApiV1DocumentsExtractionIndPancardOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Oauth2ClientCredentials} = options ?? {}

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

if (Oauth2ClientCredentials !== undefined) headers.set('authorization', `Bearer ${Oauth2ClientCredentials}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/documents/extraction/ind_pancard${query.size > 0 ? `?${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(rESPONSEPANDOCUMENTEXTRACTION, await res.json())
};