"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getCanonicalHeaders = void 0;
const constants_1 = require("./constants");
const getCanonicalHeaders = ({ headers }, unsignableHeaders, signableHeaders) => {
    const canonical = {};
    for (const headerName of Object.keys(headers).sort()) {
        if (headers[headerName] == undefined) {
            continue;
        }
        const canonicalHeaderName = headerName.toLowerCase();
        if (canonicalHeaderName in constants_1.ALWAYS_UNSIGNABLE_HEADERS ||
            (unsignableHeaders === null || unsignableHeaders === void 0 ? void 0 : unsignableHeaders.has(canonicalHeaderName)) ||
            constants_1.PROXY_HEADER_PATTERN.test(canonicalHeaderName) ||
            constants_1.SEC_HEADER_PATTERN.test(canonicalHeaderName)) {
            if (!signableHeaders || (signableHeaders && !signableHeaders.has(canonicalHeaderName))) {
                continue;
            }
        }
        canonical[canonicalHeaderName] = headers[headerName].trim().replace(/\s+/g, " ");
    }
    return canonical;
};
exports.getCanonicalHeaders = getCanonicalHeaders;