import {z} from 'zod'

export type DdsqlTabularQueryFetchRequestAttributes = {query_id: string};

export type DdsqlTabularQueryFetchRequestType = 'ddsql_query_fetch_request';

export type DdsqlTabularQueryFetchRequestData = {attributes: DdsqlTabularQueryFetchRequestAttributes, type: DdsqlTabularQueryFetchRequestType};

export type DdsqlTabularQueryFetchRequest = {data: DdsqlTabularQueryFetchRequestData};

export type CreateApiApiV2DdsqlQueryTabularFetchArgs = {body: DdsqlTabularQueryFetchRequest};

export type CreateApiApiV2DdsqlQueryTabularFetchOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const ddsqlTabularQueryColumn = z.object({name: z.string(), type: z.string(), values: z.array(z.unknown())});

export const ddsqlTabularQueryColumns = z.array(ddsqlTabularQueryColumn);

export const ddsqlTabularQueryState = z.enum(["running", "completed"]);

export const ddsqlTabularQueryWarnings = z.array(z.string());

export const ddsqlTabularQueryResponseAttributes = z.object({columns: ddsqlTabularQueryColumns.optional(), query_id: z.string().optional(), state: ddsqlTabularQueryState, warnings: ddsqlTabularQueryWarnings.optional()});

export const ddsqlTabularQueryResponseType = z.literal("ddsql_query_response");

export const ddsqlTabularQueryResponseData = z.object({attributes: ddsqlTabularQueryResponseAttributes, id: z.string(), type: ddsqlTabularQueryResponseType});

export const ddsqlTabularQueryResponseMeta = z.object({elapsed: z.number().int(), request_id: z.string()});

export const ddsqlTabularQueryResponse = z.object({data: ddsqlTabularQueryResponseData, meta: ddsqlTabularQueryResponseMeta});

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
};

/**
 * Fetch the result of a DDSQL query
 * 
 * POST /api/v2/ddsql/query/tabular/fetch
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2DdsqlQueryTabularFetch = async (args: CreateApiApiV2DdsqlQueryTabularFetchArgs, options?: CreateApiApiV2DdsqlQueryTabularFetchOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/ddsql/query/tabular/fetch${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(ddsqlTabularQueryResponse, await res.json())
};