import {z} from 'zod'

export type GetApiAccountDatasetsDatasetReportsArgs = {account: string, dataset: string};

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

export const pagination = z.object({first_page: z.string(), last_page: z.string(), total_pages: z.number().int(), total_count: z.number().int()});

export const link = z.object({href: z.string(), templated: z.boolean().optional()});

export const reportsLinks = z.object({next_page: link.optional(), prev_page: link.optional(), self: link});

export const reportsEmbeds = z.unknown();

export const reports = z.object({pagination: pagination.optional(), _links: reportsLinks, _embedded: reportsEmbeds.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
};

/**
 * List Reports using a Dataset
 * 
 * GET /{account}/datasets/{dataset}/reports
 */
export const getApiAccountDatasetsDatasetReports = async (args: GetApiAccountDatasetsDatasetReportsArgs, options?: GetApiAccountDatasetsDatasetReportsOptions) => {
const {baseUrl = "https://modeanalytics.com/api", fetch: fetchFn = fetch, accessTokenAuth} = options ?? {}

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

if (accessTokenAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${accessTokenAuth.username}:${accessTokenAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.account))}/datasets/${encodeURIComponent(String(args.dataset))}/reports${query.size > 0 ? `?${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(reports, await res.json())
};