import {z} from 'zod'

export type GetApiUsersAutocompleteArgs = {q?: string | undefined, include_suspended?: ('true' | 'false') | undefined, per_page?: number | undefined, fields: unknown};

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

export const site = z.object({id: z.number().int(), icon_url: z.string().optional(), locale: z.string().nullable().optional(), name: z.string().optional(), place_id: z.number().int().nullable().optional(), site_name_short: z.string().nullable().optional(), url: z.string().optional()}).nullable();

export const user = z.object({id: z.number().int(), uuid: z.string().optional(), created_at: z.string().optional(), description: z.string().nullable().optional(), faved_project_ids: z.array(z.number()).optional(), icon: z.string().nullable().optional(), icon_url: z.string().nullable().optional(), identifications_count: z.number().int().optional(), journal_posts_count: z.number().int().optional(), annotated_observations_count: z.number().int().optional(), last_active: z.string().optional(), login: z.string().optional(), monthly_supporter: z.boolean().nullable().optional(), name: z.string().nullable().optional(), observations_count: z.number().int().optional(), orcid: z.string().nullable().optional(), preferences: z.object({prefers_community_taxa: z.boolean().optional(), prefers_observation_fields_by: z.enum(["anyone", "curators", "observer"]).optional(), prefers_project_addition_by: z.enum(["any", "joined", "none"]).optional()}).optional(), roles: z.array(z.string()).optional(), site: site.optional(), site_id: z.number().int().nullable().optional(), spam: z.boolean().optional(), species_count: z.number().int().optional(), suspended: z.boolean().optional(), updated_at: z.string().optional()}).nullable();

export const resultsUsers = z.object({total_results: z.number().int(), page: z.number().int(), per_page: z.number().int(), results: z.array(user)});

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
};

/**
 * Search users.
 * 
 * GET /users/autocomplete
 */
export const getApiUsersAutocomplete = async (args: GetApiUsersAutocompleteArgs, options?: GetApiUsersAutocompleteOptions) => {
const {baseUrl = "https://api.inaturalist.org/v2", fetch: fetchFn = fetch, userJwtOptional} = options ?? {}

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

if (args.q != null) query.append("q", String(args.q))
if (args.include_suspended != null) query.append("include_suspended", String(args.include_suspended))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.fields != null) query.append("fields", String(args.fields))
if (userJwtOptional !== undefined) headers.set("Authorization", userJwtOptional)

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