import {z} from 'zod'

export type GetApiBucketsSlugBlocksArgs = {read_key?: string | undefined, pretty?: boolean | undefined};

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

export const blocksResponse = z.object({blocks: z.array(z.record(z.string(), 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
};

/**
 * List content Blocks
 * 
 * GET /buckets/{slug}/blocks
 */
export const getApiBucketsSlugBlocks = async (args: GetApiBucketsSlugBlocksArgs, options?: GetApiBucketsSlugBlocksOptions) => {
const {baseUrl = "https://api.cosmicjs.com/v3", fetch: fetchFn = fetch, readKey} = options ?? {}

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

if (args.read_key != null) query.append("read_key", String(args.read_key))
if (args.pretty != null) query.append("pretty", String(args.pretty))
if (readKey !== undefined) query.set("read_key", readKey)

const url = `${baseUrl.replace(/\/+$/, '')}/buckets/${encodeURIComponent(String(args.slug))}/blocks${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(blocksResponse, await res.json())
};