import {z} from 'zod'

export type SubjectContext = {userId?: string | undefined, tenantId: string, permissions?: Array<string> | undefined, attributes?: Record<string, never> | undefined};

export type IsEntitledToRouteDto = {method: 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE' | '*', path: string};

export type CreateApiV1DataE10sRoutesIsEntitledToInputRouteArgs = {body: {input?: ({subjectContext?: SubjectContext | undefined, requestContext?: IsEntitledToRouteDto | undefined}) | undefined}};

export type CreateApiV1DataE10sRoutesIsEntitledToInputRouteOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const entitlementsResult = z.object({justification: z.enum(["MISSING_FEATURE", "MISSING_PERMISSION", "PLAN_EXPIRED", "MISSING_ROUTE", "ROUTE_DENIED"]).optional(), monitoring: z.boolean().optional(), result: z.boolean()});

export const pDPResponse = z.object({decision_id: z.string(), metrics: z.object({}), result: entitlementsResult});

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
};

/**
 * Is Entitled To Route
 * 
 * POST /v1/data/e10s/routes/is_entitled_to_input_route
 */
export const createApiV1DataE10sRoutesIsEntitledToInputRoute = async (args: CreateApiV1DataE10sRoutesIsEntitledToInputRouteArgs, options?: CreateApiV1DataE10sRoutesIsEntitledToInputRouteOptions) => {
const {baseUrl = "http://localhost:8181", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/data/e10s/routes/is_entitled_to_input_route${query.size > 0 ? `?${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(pDPResponse, await res.json())
};