import {z} from 'zod'

export type GetApiGroupsArgs = {page?: number | undefined, limit?: number | undefined, sort?: ('group_asc' | 'group_desc' | 'nbmember_asc' | 'nbmember_desc' | 'type_asc' | 'type_desc' | 'nbnewsletter_asc' | 'nbnewsletter_desc' | 'date_asc' | 'date_desc') | undefined};

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

export const group = z.object({id: z.number().int().optional(), title: z.string().optional(), isPublic: z.boolean().optional(), membersCount: z.number().int().optional(), mailingsCount: z.number().int().optional(), createdOn: z.string().optional(), isDynamic: z.boolean().optional()});

export const getApiGroupsResponse = z.object({groups: z.array(group).optional(), totalCount: z.number().int().optional(), page: z.number().int().optional(), limit: z.number().int().optional(), sort: z.string().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
};

/**
 * Retrieve groups
 * 
 * GET /groups
 */
export const getApiGroups = async (args: GetApiGroupsArgs, options?: GetApiGroupsOptions) => {
const {baseUrl = "https://api.cyberimpact.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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(getApiGroupsResponse, await res.json())
};