import {z} from 'zod'

export type GetApiV1FetchTasksResultsArgs = {task_id: string};

export type GetApiV1FetchTasksResultsOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const taskStatus = z.enum(["IN PROGRESS", "DONE", "FAILED", "DUPLICATE"]);

export const apiOut = z.object({status: taskStatus, status_message: z.string(), child_task_ids: z.array(z.string()).nullable().optional(), duplicate_of_task_id: z.string().nullable().optional(), task_id: z.string().nullable().optional(), document_id: z.number().int().nullable().optional(), document_name: z.string().nullable().optional(), General_fields: z.record(z.string(), z.unknown()).nullable().optional(), Line_fields: z.record(z.string(), z.unknown()).nullable().optional(), Fraud_verdict: z.string().nullable().optional(), Fraud_justification: z.string().nullable().optional(), Fraud_score: z.number().nullable().optional(), Fraud_detection_tests: z.array(z.unknown()).nullable().optional(), Metadata: z.unknown()});

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
};

/**
 * Fetch Tasks Result
 * 
 * GET /v1/fetch_tasks_results/
 */
export const getApiV1FetchTasksResults = async (args: GetApiV1FetchTasksResultsArgs, options: GetApiV1FetchTasksResultsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

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