import {z} from 'zod'

export type CreateRouteDto = {method: 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE' | '*', path: string, policyType: 'allow' | 'deny' | 'ruleBased', description: string};

export type CreateApiResourcesRoutesV1Args = {body: CreateRouteDto};

export type CreateApiResourcesRoutesV1Options = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const routeRuleDto = z.object({id: z.string(), routeId: z.string(), type: z.enum(["feature", "permission"]), value: z.string()});

export const routeDto = z.object({id: z.string(), method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE", "*"]), path: z.string(), priority: z.number(), description: z.string(), policyType: z.enum(["allow", "deny", "ruleBased"]), rules: z.array(routeRuleDto)});

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
};

/**
 * Create Route
 * 
 * POST /resources/routes/v1
 */
export const createApiResourcesRoutesV1 = async (args: CreateApiResourcesRoutesV1Args, options?: CreateApiResourcesRoutesV1Options) => {
const {baseUrl = "http://localhost:8181", fetch: fetchFn = fetch, bearer} = options ?? {}

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

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

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