import {z} from 'zod'

export type GetApiV1TilesWorkspaceNameTileNameVersionsVersionFilesArgs = {workspaceName: string, tileName: string, version: string, accept: 'application/gzip' | 'application/json'};

export type GetApiV1TilesWorkspaceNameTileNameVersionsVersionFilesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV1TilesWorkspaceNameTileNameVersionsVersionFilesResponse = z.object({links: z.object({self: z.string(), next: z.string().nullable(), prev: z.string().nullable()}), meta: z.object({count: z.number()}), data: z.array(z.object({id: z.string(), type: z.literal("file"), attributes: z.object({path: z.string()})}))});

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
};

/**
 * Lists or downloads (as a tarball) the files in a tile version.
 * 
 * GET /v1/tiles/{workspaceName}/{tileName}/versions/{version}/files
 */
export const getApiV1TilesWorkspaceNameTileNameVersionsVersionFiles = async (args: GetApiV1TilesWorkspaceNameTileNameVersionsVersionFilesArgs, options?: GetApiV1TilesWorkspaceNameTileNameVersionsVersionFilesOptions) => {
const {baseUrl = "https://api.tessl.io", fetch: fetchFn = fetch} = options ?? {}

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

if (args.accept != null) headers.set("accept", String(args.accept))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/tiles/${encodeURIComponent(String(args.workspaceName))}/${encodeURIComponent(String(args.tileName))}/versions/${encodeURIComponent(String(args.version))}/files${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(getApiV1TilesWorkspaceNameTileNameVersionsVersionFilesResponse, await res.json())
};