'use strict';

var protocolHttp = require('@smithy/protocol-http');

const deserializerMiddleware = (options, deserializer) => (next, context) => async (args) => {
    const { response } = await next(args);
    try {
        const parsed = await deserializer(response, options);
        return {
            response,
            output: parsed,
        };
    }
    catch (error) {
        Object.defineProperty(error, "$response", {
            value: response,
        });
        if (!("$metadata" in error)) {
            const hint = `Deserialization error: to see the raw response, inspect the hidden field {error}.$response on this object.`;
            try {
                error.message += "\n  " + hint;
            }
            catch (e) {
                if (!context.logger || context.logger?.constructor?.name === "NoOpLogger") {
                    console.warn(hint);
                }
                else {
                    context.logger?.warn?.(hint);
                }
            }
            if (typeof error.$responseBodyText !== "undefined") {
                if (error.$response) {
                    error.$response.body = error.$responseBodyText;
                }
            }
            try {
                if (protocolHttp.HttpResponse.isInstance(response)) {
                    const { headers = {} } = response;
                    const headerEntries = Object.entries(headers);
                    error.$metadata = {
                        httpStatusCode: response.statusCode,
                        requestId: findHeader(/^x-[\w-]+-request-?id$/, headerEntries),
                        extendedRequestId: findHeader(/^x-[\w-]+-id-2$/, headerEntries),
                        cfId: findHeader(/^x-[\w-]+-cf-id$/, headerEntries),
                    };
                }
            }
            catch (e) {
            }
        }
        throw error;
    }
};
const findHeader = (pattern, headers) => {
    return (headers.find(([k]) => {
        return k.match(pattern);
    }) || [void 0, void 0])[1];
};

const serializerMiddleware = (options, serializer) => (next, context) => async (args) => {
    const endpointConfig = options;
    const endpoint = context.endpointV2?.url && endpointConfig.urlParser
        ? async () => endpointConfig.urlParser(context.endpointV2.url)
        : endpointConfig.endpoint;
    if (!endpoint) {
        throw new Error("No valid endpoint provider available.");
    }
    const request = await serializer(args.input, { ...options, endpoint });
    return next({
        ...args,
        request,
    });
};

const deserializerMiddlewareOption = {
    name: "deserializerMiddleware",
    step: "deserialize",
    tags: ["DESERIALIZER"],
    override: true,
};
const serializerMiddlewareOption = {
    name: "serializerMiddleware",
    step: "serialize",
    tags: ["SERIALIZER"],
    override: true,
};
function getSerdePlugin(config, serializer, deserializer) {
    return {
        applyToStack: (commandStack) => {
            commandStack.add(deserializerMiddleware(config, deserializer), deserializerMiddlewareOption);
            commandStack.add(serializerMiddleware(config, serializer), serializerMiddlewareOption);
        },
    };
}

exports.deserializerMiddleware = deserializerMiddleware;
exports.deserializerMiddlewareOption = deserializerMiddlewareOption;
exports.getSerdePlugin = getSerdePlugin;
exports.serializerMiddleware = serializerMiddleware;
exports.serializerMiddlewareOption = serializerMiddlewareOption;
