Ext.define('PVE.qemu.RNGInputPanel', {
    extend: 'Proxmox.panel.InputPanel',
    xtype: 'pveRNGInputPanel',

    // FIXME: enable once we bumped doc-gen so this ref is included
    //onlineHelp: 'qm_virtio_rng',

    onGetValues: function(values) {
	if (values.max_bytes === "") {
	    values.max_bytes = "0";
	} else if (values.max_bytes === "1024" && values.period === "") {
	    delete values.max_bytes;
	}

	var ret = PVE.Parser.printPropertyString(values);

	return {
	    rng0: ret,
	};
    },

    setValues: function(values) {
	if (values.max_bytes == 0) {
	    values.max_bytes = null;
	}

	this.callParent(arguments);
    },

    controller: {
	xclass: 'Ext.app.ViewController',
	control: {
	    '#max_bytes': {
		change: function(el, newVal) {
		    let limitWarning = this.lookupReference('limitWarning');
		    limitWarning.setHidden(!!newVal);
		},
	    },
	    '#source': {
		change: function(el, newVal) {
		    let limitWarning = this.lookupReference('sourceWarning');
		    limitWarning.setHidden(newVal !== '/dev/random');
		},
	    },
	},
    },

    items: [{
	itemId: 'source',
	name: 'source',
	xtype: 'proxmoxKVComboBox',
	value: '/dev/urandom',
	fieldLabel: gettext('Entropy source'),
	labelWidth: 130,
	comboItems: [
	    ['/dev/urandom', '/dev/urandom'],
	    ['/dev/random', '/dev/random'],
	    ['/dev/hwrng', '/dev/hwrng'],
	],
    },
    {
	xtype: 'numberfield',
	itemId: 'max_bytes',
	name: 'max_bytes',
	minValue: 0,
	step: 1,
	value: 1024,
	fieldLabel: gettext('Limit (Bytes/Period)'),
	labelWidth: 130,
	emptyText: gettext('unlimited'),
    },
    {
	xtype: 'numberfield',
	name: 'period',
	minValue: 1,
	step: 1,
	fieldLabel: gettext('Period') + ' (ms)',
	labelWidth: 130,
	emptyText: '1000',
    },
    {
	xtype: 'displayfield',
	reference: 'sourceWarning',
	value: gettext('Using /dev/random as entropy source is discouraged, as it can lead to host entropy starvation. /dev/urandom is preferred, and does not lead to a decrease in security in practice.'),
	userCls: 'pmx-hint',
	hidden: true,
    },
    {
	xtype: 'displayfield',
	reference: 'limitWarning',
	value: gettext('Disabling the limiter can potentially allow a guest to overload the host. Proceed with caution.'),
	userCls: 'pmx-hint',
	hidden: true,
    }],
});

Ext.define('PVE.qemu.RNGEdit', {
    extend: 'Proxmox.window.Edit',

    subject: gettext('VirtIO RNG'),

    items: [{
	xtype: 'pveRNGInputPanel',
    }],

    initComponent: function() {
	var me = this;

	me.callParent();

	if (!me.isCreate) {
	    me.load({
		success: function(response) {
		    me.vmconfig = response.result.data;

		    var rng0 = me.vmconfig.rng0;
		    if (rng0) {
			me.setValues(PVE.Parser.parsePropertyString(rng0));
		    }
		},
	    });
	}
    },
});