// privilege.js — pure rendering helpers for the Nuguland polkit surface.
// Dual-mode: node `require` tests + QML import.

function escapeHtml(value) {
    return String(value == null ? "" : value)
        .replace(/&/g, "&")
        .replace(/</g, "&lt;")
        .replace(/>/g, "&gt;")
        .replace(/"/g, "&quot;");
}

function stripCommandQuotes(command) {
    var text = String(command || "").trim();
    if (text.length >= 2) {
        var first = text[0];
        var last = text[text.length - 1];
        if ((first === "`" || first === "'" || first === "\"") && (last === "'" || last === "`" || last === "\""))
            return text.slice(1, -1);
    }
    return text;
}

function commandFromMessage(message) {
    var text = String(message || "").trim();
    var match = /^Authentication is needed to run\s+(.+?)\s+as the super user\.?$/i.exec(text);
    return stripCommandQuotes(match ? match[1] : text);
}

function commandLines(command) {
    var text = stripCommandQuotes(command);
    var shell = /^(\/usr\/bin\/sh|sh)\s+-c\s+(.+)$/.exec(text);
    var lines = shell ? [shell[1] + " -c"].concat(shell[2].split(/\s+&&\s+/)) : text.split(/\s+&&\s+/);
    return lines.map(function (line) { return line.trim(); })
        .filter(function (line) { return line.length > 0; });
}

function commandMarkdown(message) {
    var lines = commandLines(commandFromMessage(message));
    if (lines.length === 0) lines = ["A system change needs your password."];
    return "<span style=\"font-family:'IBM Plex Mono'; font-size:13px; line-height:1.35\">" +
        lines.map(escapeHtml).join("<br>") +
        "</span>";
}

if (typeof module !== 'undefined' && module.exports) {
    module.exports = {
        escapeHtml: escapeHtml,
        commandFromMessage: commandFromMessage,
        commandLines: commandLines,
        commandMarkdown: commandMarkdown
    };
}