ltgcgo/mint

"use strict";

const ffVer = "102.0";

let uaSpread = function (mode = "noBracket", uaStr = "Mozilla/5.0") {
    let result = uaStr,
    isMobile = uaStr.toLowerCase().has("mobile");
    switch (mode) {
        case "asIs": {
            break;
        };
        case "mimic": {
            result = "Mozilla/5.0 (";
            if (uaStr.has("Firefox") || uaStr.has("Trident")) {
                // Yes, I need to hide Internet Explorer somehow...
                result += isMobile ? "Android 12; Mobile": "Windows NT 10.0; Win64; x64";
                result += `; rv:${ffVer}) Gecko/${isMobile ? ffVer : 20100101} Firefox/${ffVer}`;
            } else if (uaStr.has("Safari")) {
                // Both Chrome and Safari are now Chrome
                result += isMobile ? "Linux; Android 12; Pixel 5" : "Windows NT 10.0; Win64; x64";
                result += `) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 ${isMobile ? "Mobile " : ""}Safari/537.36`;
            } else {
                // Nah, an Android device sounds good.
                result = "Dalvik/2.1.0 (Linux; Android 12; Pixel 5)";
            };
            break;
        };
        case "noBracket": {
            let detStart = uaStr.indexOf("(") + 1,
            detEnd = uaStr.indexOf(")");
            if (detStart > -1 && detStart < detEnd) {
                // Initialize
                result = uaStr.slice(0, detStart);
                // Fill in the blanks
                if (uaStr.has("Trident")) {
                    result += "Windows NT 10.0; Trident/7.0; rv:11.0";
                } else if (uaStr.has("Firefox")) {
                    let instFfVer = uaStr.slice(uaStr.indexOf("Firefox/") + 8).split(" ")[0];
                    result += isMobile ? "Android 12; Mobile" : "Windows NT 10.0; Win64; x64";
                    result += `; rv:${instFfVer}`;
                } else if (uaStr.has("Chrome")) {
                    result += isMobile ? "Linux; Android 12; Pixel 5" : "Windows NT 10.0; Win64; x64";
                } else if (uaStr.has("Safari")) {
                    result += isMobile ? "iPhone; CPU iPhone OS 13_3_1 like Mac OS X" : "Macintosh; Intel Mac OS X 10_15_17";
                };
                // Finishing touch
                result += uaStr.slice(detEnd);
            };
            break;
        };
        default: {
            result = mode;
        };
    };
    return result;
};

export {
    uaSpread
};