import {z} from 'zod'

export type CreateApiFabricFabricApiFunctionGenerateQueryArgs = {fabric: unknown, type?: 'akamai' | undefined, name: string, streamWorkerName: string, environment?: ('STAGING' | 'PRODUCTION') | undefined};

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

export const generateEdgeWorkerFromQueryWorkerRc200 = z.object({code: z.number().int().optional(), error: z.boolean().optional(), result: z.array(z.object({message: z.string().optional()})).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
};

/**
 * Deploy the stream adhoc query to the edge worker.
 * 
 * POST /_fabric/{fabric}/_api/function/generate/query
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiFabricFabricApiFunctionGenerateQuery = async (args: CreateApiFabricFabricApiFunctionGenerateQueryArgs, options: CreateApiFabricFabricApiFunctionGenerateQueryOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.type != null) query.append("type", String(args.type))
if (args.name != null) query.append("name", String(args.name))
if (args.streamWorkerName != null) query.append("streamWorkerName", String(args.streamWorkerName))
if (args.environment != null) query.append("environment", String(args.environment))
if (ApiKeyAuth !== undefined) headers.set("Authorization", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/_fabric/${encodeURIComponent(String(args.fabric))}/_api/function/generate/query${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers})

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

return validateResponse(generateEdgeWorkerFromQueryWorkerRc200, await res.json())
};