import * as Effect from "effect/Effect";
import * as Binding from "../../Binding.ts";
import * as Output from "../../Output.ts";
import { isBindingHost } from "../Lambda/Function.ts";
import type { SearchJob } from "./SearchJob.ts";

/**
 * Shared scaffolding for BackupSearch HTTP bindings.
 *
 * NOT exported from `index.ts` — every `{Op}Http.ts` in this service is a
 * thin `Layer.effect(Cap, makeSearchJobScopedHttpBinding({ … }))` over the
 * builder below. Everything except the operation and the IAM action list is
 * boilerplate.
 *
 * BackupSearch IAM actions live under the `backup-search:` service prefix.
 */

/**
 * Build the impl Effect for a search-job-scoped operation: the runtime
 * callable injects the bound {@link SearchJob}'s identifier as
 * `SearchJobIdentifier` and the deploy-time half grants `actions` on the
 * search job ARN.
 */
export const makeSearchJobScopedHttpBinding = <
  I extends { SearchJobIdentifier: string },
  A,
  E,
  R,
>(options: {
  /** Fully-qualified binding tag, e.g. `AWS.BackupSearch.ListSearchJobResults`. */
  tag: string;
  /** The distilled operation; `SearchJobIdentifier` is injected from the resource. */
  operation: Effect.Effect<(input: I) => Effect.Effect<A, E>, never, R>;
  /** IAM actions granted on the search job ARN. */
  actions: readonly string[];
}) =>
  Effect.gen(function* () {
    const op = yield* options.operation;

    return Effect.fn(function* (searchJob: SearchJob) {
      const SearchJobIdentifier = yield* searchJob.searchJobIdentifier;
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, ${options.tag}(${searchJob}))`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: [...options.actions],
                Resource: [Output.interpolate`${searchJob.searchJobArn}`],
              },
            ],
          });
        }
      }
      return Effect.fn(`${options.tag}(${searchJob.LogicalId})`)(function* (
        request?: Omit<I, "SearchJobIdentifier">,
      ) {
        return yield* op({
          ...request,
          SearchJobIdentifier: yield* SearchJobIdentifier,
        } as I);
      });
    });
  });