import type { ApiFailure } from "../../../contracts/errors.js";
import type {
  ReferenceGateway,
  ReferenceListFilters,
} from "../application/reference-feature-api.js";
import type { ReferenceResource } from "../domain/reference-resource.js";

type HttpResult =
  | Readonly<{ ok: true; value: unknown }>
  | Readonly<{ ok: false; error: ApiFailure }>;

type HttpExecutor = Readonly<{
  execute(
    request: Readonly<{
      operationId: string;
      routeId: string;
      pathParams?: Record<string, string | number>;
      searchParams?: unknown;
      body?: unknown;
      signal?: AbortSignal;
    }>,
  ): Promise<HttpResult>;
}>;

export function createReferenceHttpGateway(
  http: HttpExecutor,
): ReferenceGateway {
  return Object.freeze({
    async list(
      filters: ReferenceListFilters,
      context?: Readonly<{ signal?: AbortSignal }>,
    ) {
      const result = await http.execute({
        operationId: "LIST_REFERENCE_RESOURCES",
        routeId: "REFERENCE_RESOURCE_LIST",
        searchParams: filters,
        signal: context?.signal,
      });
      return result.ok
        ? {
            ok: true as const,
            value: result.value as readonly ReferenceResource[],
          }
        : result;
    },
    async create(command: Readonly<{ name: string; note?: string }>) {
      const result = await http.execute({
        operationId: "CREATE_REFERENCE_RESOURCE",
        routeId: "REFERENCE_RESOURCE_LIST",
        body: command,
      });
      return result.ok
        ? { ok: true as const, value: result.value as ReferenceResource }
        : result;
    },
    async get(
      resourceId: string,
      context?: Readonly<{ signal?: AbortSignal }>,
    ) {
      const result = await http.execute({
        operationId: "GET_REFERENCE_RESOURCE",
        routeId: "REFERENCE_RESOURCE_DETAIL",
        pathParams: { resourceId },
        signal: context?.signal,
      });
      return result.ok
        ? { ok: true as const, value: result.value as ReferenceResource }
        : result;
    },
  });
}