import {z} from 'zod'

export type ResourceView = 'basic' | 'full';

export type GetApiAccountsArgs = {page_size?: number | undefined, page_token?: string | undefined, view?: ResourceView | undefined};

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

export const accountName = z.string().min(3).max(50);

export const accountCommon = z.object({name: accountName, display_name: z.string(), auth0_org_id: z.string()});

export const getApiAccountsResponse = z.object({next_page_token: z.string().optional(), items: z.array(accountCommon)});

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 Decodable Accounts of which the authenticated user is a member.
 * 
 * GET /accounts
 * 
 * Also accepts auth: oauth2
 */
export const getApiAccounts = async (args: GetApiAccountsArgs, options?: GetApiAccountsOptions) => {
const {baseUrl = "https://replace-with-account.api.decodable.co/v1alpha2", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.page_token != null) query.append("page_token", String(args.page_token))
if (args.view != null) query.append("view", String(args.view))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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