import {z} from 'zod'

export type GetApiTableSummariesArgs = {catalogName?: string | undefined, schemaNamePattern?: string | undefined, tableNamePattern?: string | undefined, maxResults?: number | undefined, pageToken?: string | undefined, includeManifestCapabilities?: boolean | undefined};

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

export const tableSummary = z.object({fullName: z.string().optional(), tableType: z.number().int().optional()});

export const listTableSummariesResponse = z.object({tables: z.array(tableSummary).optional(), nextPageToken: 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
};

/**
 * Gets an array of summaries for tables for a schema and catalog within the metastore. The table summaries returned are either:
 * 
 * GET /table-summaries
 */
export const getApiTableSummaries = async (args: GetApiTableSummariesArgs, options: GetApiTableSummariesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.catalogName != null) query.append("catalogName", String(args.catalogName))
if (args.schemaNamePattern != null) query.append("schemaNamePattern", String(args.schemaNamePattern))
if (args.tableNamePattern != null) query.append("tableNamePattern", String(args.tableNamePattern))
if (args.maxResults != null) query.append("maxResults", String(args.maxResults))
if (args.pageToken != null) query.append("pageToken", String(args.pageToken))
if (args.includeManifestCapabilities != null) query.append("includeManifestCapabilities", String(args.includeManifestCapabilities))

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