import {z} from 'zod'

export type Pagination = {page?: ({number?: number | undefined, size?: number | undefined}) | undefined};

export type DownloadSortOptions = 'date' | '-date' | 'user_name' | '-user_name' | 'organization' | '-organization' | 'file_name' | '-file_name' | 'folder_name' | '-folder_name' | 'ip_address' | '-ip_address';

export type GetApiStatisticsDownloadsArgs = {filter?: ({filter?: ({date?: ({gte?: string | undefined, lt?: string | undefined}) | undefined, user?: ({eq?: number | undefined}) | undefined, file?: ({eq?: number | undefined}) | undefined, folder?: ({eq?: number | undefined}) | undefined, extension?: ({eq?: string | undefined}) | undefined}) | undefined}) | undefined, page?: Pagination | undefined, sort?: DownloadSortOptions | undefined};

export type GetApiStatisticsDownloadsOptions = {baseUrl: string, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const downloadStatisticAttributes = z.object({date: z.string().optional(), action: z.string().optional(), user_name: z.string().optional(), user_id: z.string().optional(), organization: z.string().optional(), ip_address: z.string().optional(), file_id: z.number().int().optional(), file_name: z.string().optional(), file_extension: z.string().optional(), folder_id: z.number().int().optional(), folder_name: z.string().optional()});

export const downloadStatistic = z.object({type: z.string().optional(), id: z.string().optional(), attributes: downloadStatisticAttributes.optional()});

export const paginatedCollectionLinks = z.object({self: z.string(), first: z.string(), last: z.string(), prev: z.string().nullable(), next: z.string().nullable()});

export const filterEcho = z.union([z.record(z.string(), z.unknown()), z.array(z.unknown())]);

export const paginatedCollectionMeta = z.object({total: z.number().int(), count: z.number().int(), per_page: z.number().int(), current_page: z.number().int(), total_pages: z.number().int(), filter: filterEcho, sort: z.string().nullable()});

export const downloadStatisticsCollection = z.object({data: z.array(downloadStatistic).optional(), links: paginatedCollectionLinks.optional(), meta: paginatedCollectionMeta.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
};

/**
 * Get download statistics
 * 
 * GET /statistics/downloads
 */
export const getApiStatisticsDownloads = async (args: GetApiStatisticsDownloadsArgs, options: GetApiStatisticsDownloadsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.filter != null) query.append("filter", JSON.stringify(args.filter))
if (args.page != null) query.append("page", JSON.stringify(args.page))
if (args.sort != null) query.append("sort", String(args.sort))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

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