import {z} from 'zod'

export type GetApiApiProcessProcessIdFileFileIdArgs = {processId: string, fileId: string};

export type GetApiApiProcessProcessIdFileFileIdOptions = {baseUrl?: string | undefined, SwisscomSignOAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const coordinateSignaturePosition = z.object({locator: z.enum(["COORDINATES", "TAG"]), signer: z.string().max(128), pageNumber: z.number().int(), positionX: z.number().int().gte(0), positionY: z.number().int().gte(0), stickerProvider: z.enum(["VISUAL_SIGNATURE_PROVIDER", "CUSTOM_VISUAL_SIGNATURE_PROVIDER"]).optional()});

export const tagSignaturePosition = z.object({locator: z.enum(["COORDINATES", "TAG"]), signer: z.string().max(128), offsetX: z.number().int().gte(-200).lte(200).optional(), offsetY: z.number().int().gte(-200).lte(200).optional(), stickerProvider: z.enum(["VISUAL_SIGNATURE_PROVIDER", "CUSTOM_VISUAL_SIGNATURE_PROVIDER"]).optional()});

export const fileAttachment = z.object({id: z.string().optional(), name: z.string().max(255), content: z.string().max(55924053), contentType: z.string().max(50), externalIdentifier: z.string().max(50).optional(), signaturePositions: z.array(z.union([coordinateSignaturePosition, tagSignaturePosition])).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
};

/**
 * Download process file
 * 
 * GET /api/process/{processId}/file/{fileId}
 */
export const getApiApiProcessProcessIdFileFileId = async (args: GetApiApiProcessProcessIdFileFileIdArgs, options?: GetApiApiProcessProcessIdFileFileIdOptions) => {
const {baseUrl = "https://sign.swisscom.ch/system", fetch: fetchFn = fetch, SwisscomSignOAuth2} = options ?? {}

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

if (SwisscomSignOAuth2 !== undefined) headers.set('authorization', `Bearer ${SwisscomSignOAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/process/${encodeURIComponent(String(args.processId))}/file/${encodeURIComponent(String(args.fileId))}${query.size > 0 ? `?${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(fileAttachment, await res.json())
};