import * as sdb from "@distilled.cloud/aws/simpledb";
import * as Effect from "effect/Effect";
import * as Layer from "effect/Layer";
import * as Binding from "../../Binding.ts";
import { isBindingHost } from "../Lambda/Function.ts";
import { ListDomains } from "./ListDomains.ts";

/**
 * Account-level binding — bespoke rather than `makeSimpleDbBinding` because
 * `ListDomains` targets no single domain: SimpleDB IAM cannot scope it
 * narrower than every domain in the account, so the grant is
 * `sdb:ListDomains` on `domain/*` (expressed as `*`).
 */
export const ListDomainsHttp = Layer.effect(
  ListDomains,
  Effect.gen(function* () {
    const listDomains = yield* sdb.listDomains;

    return Effect.fn(function* () {
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, AWS.SimpleDB.ListDomains())`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: ["sdb:ListDomains"],
                Resource: ["*"],
              },
            ],
          });
        }
      }
      return Effect.fn("AWS.SimpleDB.ListDomains")(function* (
        request?: sdb.ListDomainsRequest,
      ) {
        return yield* listDomains({ ...request });
      });
    });
  }),
);