import {z} from 'zod'

export type GetApiSpacesArgs = {page?: number | undefined, size?: number | undefined};

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

export const vocabModel = z.object({"@vocab": z.string()});

export const axesOrigin = z.object({"@context": vocabModel.optional(), typeOfUncertainty: z.unknown(), uncertainty: z.array(z.number()).optional(), unit: z.unknown(), value: z.number()});

export const siibraAtIdModel = z.object({"@id": z.string()});

export const ebrainsDsUrl = z.object({"@type": z.string(), url: z.string()});

export const ebrainsDsPerson = z.object({"@type": z.string(), "@id": z.string(), "schema.org/shortName": z.string(), identifier: z.string(), shortName: z.string(), name: z.string()});

export const ebrainsDatasetModel = z.object({"@type": z.string(), "@id": z.string(), name: z.string(), urls: z.array(ebrainsDsUrl), description: z.string().optional(), contributors: z.array(ebrainsDsPerson), ebrains_page: z.string().optional(), custodians: z.array(ebrainsDsPerson)});

export const volumeModel = z.object({"@type": z.string(), name: z.string(), formats: z.array(z.string()), providesMesh: z.boolean(), providesImage: z.boolean(), fragments: z.record(z.string(), z.array(z.string())), variant: z.string().optional(), providedVolumes: z.record(z.string(), z.union([z.string(), z.record(z.string(), z.string())])), space: siibraAtIdModel, datasets: z.array(ebrainsDatasetModel)});

export const commonCoordinateSpaceModel = z.object({"@type": z.string(), "@context": vocabModel.optional(), "@id": z.string(), anatomicalAxesOrientation: z.object({}), axesOrigin: z.array(axesOrigin), defaultImage: z.array(volumeModel).optional(), digitalIdentifier: z.object({}).optional(), fullName: z.string(), homepage: z.object({}).optional(), howToCite: z.string().optional(), nativeUnit: z.object({}), ontologyIdentifier: z.array(z.string()).optional(), releaseDate: z.string(), shortName: z.string(), versionIdentifier: z.string(), datasets: z.array(ebrainsDatasetModel).optional()});

export const pageCommonCoordinateSpaceModel = z.object({items: z.array(commonCoordinateSpaceModel), total: z.number().int().gte(0).optional(), page: z.number().int().gte(1).optional(), size: z.number().int().gte(1).optional(), pages: z.number().int().gte(0).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 All Spaces
 * 
 * GET /spaces
 */
export const getApiSpaces = async (args: GetApiSpacesArgs, options: GetApiSpacesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = 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.size != null) query.append("size", String(args.size))

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