import {z} from 'zod'

export type ProtectGroupSortFieldOptions = string;

export type ProtectGroupSortFieldOrder = string;

export type GetApiGroupsArgs = {name?: string | undefined, mapping?: string | undefined, createdOn?: string | undefined, lastModifiedOn?: string | undefined, sortField?: ProtectGroupSortFieldOptions | undefined, sortOrder?: ProtectGroupSortFieldOrder | undefined, limit?: number | undefined, after?: (string | null) | undefined};

export type GetApiGroupsOptions = {baseUrl: string, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const cursors = z.object({after: z.string().optional()});

export const provider = z.string();

export const groupMapping = z.object({provider: provider, identity: z.string()});

export const group = z.object({name: z.string(), mappings: z.array(groupMapping)});

export const pagedGroups = z.object({cursors: cursors, results: z.array(group)});

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 groups
 * 
 * GET /groups
 * 
 * Also accepts auth: jwtAuth, oauth2, oauth2
 */
export const getApiGroups = async (args: GetApiGroupsArgs, options: GetApiGroupsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.name != null) query.append("name", String(args.name))
if (args.mapping != null) query.append("mapping", String(args.mapping))
if (args.createdOn != null) query.append("createdOn", String(args.createdOn))
if (args.lastModifiedOn != null) query.append("lastModifiedOn", String(args.lastModifiedOn))
if (args.sortField != null) query.append("sortField", String(args.sortField))
if (args.sortOrder != null) query.append("sortOrder", String(args.sortOrder))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.after != null) query.append("after", String(args.after))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

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