import { setFeature } from "@smithy/core";
import { getSmithyContext } from "@smithy/util-middleware";
import { getEndpointFromInstructions } from "./adaptors/getEndpointFromInstructions";
export const endpointMiddleware = ({ config, instructions, }) => {
    return (next, context) => async (args) => {
        if (config.endpoint) {
            setFeature(context, "ENDPOINT_OVERRIDE", "N");
        }
        const endpoint = await getEndpointFromInstructions(args.input, {
            getEndpointParameterInstructions() {
                return instructions;
            },
        }, { ...config }, context);
        context.endpointV2 = endpoint;
        context.authSchemes = endpoint.properties?.authSchemes;
        const authScheme = context.authSchemes?.[0];
        if (authScheme) {
            context["signing_region"] = authScheme.signingRegion;
            context["signing_service"] = authScheme.signingName;
            const smithyContext = getSmithyContext(context);
            const httpAuthOption = smithyContext?.selectedHttpAuthScheme?.httpAuthOption;
            if (httpAuthOption) {
                httpAuthOption.signingProperties = Object.assign(httpAuthOption.signingProperties || {}, {
                    signing_region: authScheme.signingRegion,
                    signingRegion: authScheme.signingRegion,
                    signing_service: authScheme.signingName,
                    signingName: authScheme.signingName,
                    signingRegionSet: authScheme.signingRegionSet,
                }, authScheme.properties);
            }
        }
        return next({
            ...args,
        });
    };
};