import {z} from 'zod'

export type Middleware = {order?: number | undefined, resource?: string | undefined, resource_type?: ('function' | 'service') | undefined, resource_version?: string | undefined, type?: ('pre-request' | 'post-request') | undefined};

export type Limit = {request?: number | undefined, time?: number | undefined};

export type GatewayUpdateRequest = {name?: string | undefined, description?: string | undefined, active?: boolean | undefined, middleware?: Array<Middleware> | undefined, limit?: Limit | undefined, timeout?: number | undefined};

export type PatchApiGatewayGatewayTopicArgs = {gateway_topic: string, body: GatewayUpdateRequest};

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

export const successResponse = z.object({message: 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
};

/**
 * Update a gateway
 * 
 * PATCH /gateway/{gateway_topic}
 * 
 * Also accepts auth: apiKeyAuth
 */
export const patchApiGatewayGatewayTopic = async (args: PatchApiGatewayGatewayTopicArgs, options?: PatchApiGatewayGatewayTopicOptions) => {
const {baseUrl = "https://api.quiva.ai", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/gateway/${encodeURIComponent(String(args.gateway_topic))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", 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(successResponse, await res.json())
};