import {z} from 'zod'

export type GetApiBatchBatchIdUploadArgs = {page?: number | undefined, limit?: number | undefined};

export type GetApiBatchBatchIdUploadOptions = {baseUrl?: string | undefined, DVIDS?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiBatchBatchIdUploadResponse = z.object({links: z.object({self: z.string(), first: z.string(), last: z.string(), prev: z.string().nullable().optional(), next: z.string().nullable().optional()}), data: z.array(z.object({id: z.string(), type: z.literal("batch-upload"), attributes: z.object({expires_at: z.string().optional(), max_file_size: z.number().int().optional(), use_cdn: z.boolean().optional(), http_method: z.enum(["POST", "PUT"]).optional(), upload_url: z.string().optional(), multipart_form_upload_params: z.object({}).nullable().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
};

/**
 * Get a list of batch uploads with paging and filtering
 * 
 * GET /batch/{batch_id}/upload
 */
export const getApiBatchBatchIdUpload = async (args: GetApiBatchBatchIdUploadArgs, options?: GetApiBatchBatchIdUploadOptions) => {
const {baseUrl = "https://submitapi.dvidshub.net", fetch: fetchFn = fetch, DVIDS} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/batch/${encodeURIComponent(String(args.batch_id))}/upload${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(getApiBatchBatchIdUploadResponse, await res.json())
};