noun_type_proxytype = new CmdUtils.NounType( "Proxy Type",
  ["manual", "off", "auto", "pac"]
  );


CmdUtils.CreateCommand({
    name: "proxy-set",

    homepage: "http://blog.monstuff.com/archives/000342.html",
    author: {
        name: "Julien Couvreur",
        email: "julien.couvreur@gmail.com"
    },
    license: "MPL",
    description: "Toggles the browser's proxy setting on and off.",
    help: "This command lets you change the Connection Settings without having to open the Options and Proxy Settings windows. Invoke it with 'proxy-set off/manual/auto/pac'.",

    takes: { proxytype: noun_type_proxytype },
    execute: function(proxytype) {
        var proxycode = this._getProxyCode(proxytype.text);
        if (proxycode == null) {
            displayMessage("Command not understood. Use 'proxy-set off/manual/auto/pac'.");
            return;
        }

        Application.prefs.setValue("network.proxy.type", proxycode);

        var msg = 'Proxy is set to: ${newProxytype}';
        displayMessage(CmdUtils.renderTemplate( msg, {newProxytype: this._getProxyType(proxycode)} ));
    },

    preview: function( pblock, proxytype ) {
        var oldProxycode = Application.prefs.get("network.proxy.type").value;
        var oldProxytype = this._getProxyType(oldProxycode);
        if (oldProxytype == null) { return; }

        var msg = 'Proxy is currently set to <i>${oldProxytype}</i>';
        pblock.innerHTML = CmdUtils.renderTemplate( msg, {oldProxytype: oldProxytype} );
    },

    _getProxyCode: function(proxyType) {
        switch (proxyType) {
            case "off": return 0;
            case "manual": return 1;
            case "auto": return 2;
            case "pac": return 4;

            default: return null;
        }
    },

    _getProxyType: function(proxyCode) {
        switch (proxyCode) {
            case 0: return "off";
            case 1: return "manual";
            case 2: return "auto";
            case 4: return "pac";

            default: return null;
        }
    },

// todo: add interactive preview

})