Ext.define('pve-rrd-node', {
    extend: 'Ext.data.Model',
    fields: [
	{
	    name: 'cpu',
	    // percentage
	    convert: function(value) {
		return value*100;
	    }
	},
	{
	    name: 'iowait',
	    // percentage
	    convert: function(value) {
		return value*100;
	    }
	},
	'netin',
	'netout',
	'memtotal',
	'memused',
	'swaptotal',
	'swapused',
	'total',
	'used',
	'read_ios',
	'read_bytes',
        'write_ios',
	'write_bytes',
        'io_ticks',
	{
	    name: 'io_delay', calculate: function(data) {
		let ios = 0;
		if (data.read_ios !== undefined) { ios += data.read_ios; }
		if (data.write_ios !== undefined) { ios += data.write_ios; }
		if (ios == 0 || data.io_ticks === undefined) {
		    return undefined;
		}
		return (data.io_ticks*1000.0)/ios;
	    }
	},
	'loadavg',
	{ type: 'date', dateFormat: 'timestamp', name: 'time' }
    ]
});
Ext.define('PBS.ServerStatus', {
    extend: 'Ext.panel.Panel',
    alias: 'widget.pbsServerStatus',

    title: gettext('ServerStatus'),

    scrollable: true,

    initComponent: function() {
        var me = this;

	var node_command = function(cmd) {
	    Proxmox.Utils.API2Request({
		params: { command: cmd },
		url: '/nodes/localhost/status',
		method: 'POST',
		waitMsgTarget: me,
		failure: function(response, opts) {
		    Ext.Msg.alert(gettext('Error'), response.htmlStatus);
		}
	    });
	};

	var restartBtn = Ext.create('Proxmox.button.Button', {
	    text: gettext('Reboot'),
	    dangerous: true,
	    confirmMsg: gettext("Reboot backup server?"),
	    handler: function() {
		node_command('reboot');
	    },
	    iconCls: 'fa fa-undo'
	});

	var shutdownBtn = Ext.create('Proxmox.button.Button', {
	    text: gettext('Shutdown'),
	    dangerous: true,
	    confirmMsg: gettext("Shutdown backup server?"),
	    handler: function() {
		node_command('shutdown');
	    },
	    iconCls: 'fa fa-power-off'
	});

	me.tbar = [ restartBtn, shutdownBtn, '->', { xtype: 'proxmoxRRDTypeSelector' } ];

	var rrdstore = Ext.create('Proxmox.data.RRDStore', {
	    rrdurl: "/api2/json/nodes/localhost/rrd",
	    model: 'pve-rrd-node'
	});

	me.items = {
	    xtype: 'container',
	    itemId: 'itemcontainer',
	    layout: 'column',
	    minWidth: 700,
	    defaults: {
		minHeight: 320,
		padding: 5,
		columnWidth: 1
	    },
	    items: [
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('CPU usage'),
		    fields: ['cpu','iowait'],
		    fieldTitles: [gettext('CPU usage'), gettext('IO wait')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Server load'),
		    fields: ['loadavg'],
		    fieldTitles: [gettext('Load average')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Memory usage'),
		    fields: ['memtotal','memused'],
		    fieldTitles: [gettext('Total'), gettext('RAM usage')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Swap usage'),
		    fields: ['swaptotal','swapused'],
		    fieldTitles: [gettext('Total'), gettext('Swap usage')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Network traffic'),
		    fields: ['netin','netout'],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Root Disk usage'),
		    fields: ['total','used'],
		    fieldTitles: [gettext('Total'), gettext('Disk usage')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Root Disk Transfer Rate (bytes/second)'),
		    fields: ['read_bytes','write_bytes'],
		    fieldTitles: [gettext('Read'), gettext('Write')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Root Disk Input/Output Operations per Second (IOPS)'),
		    fields: ['read_ios','write_ios'],
		    fieldTitles: [gettext('Read'), gettext('Write')],
		    store: rrdstore
		},
		{
		    xtype: 'proxmoxRRDChart',
		    title: gettext('Root Disk IO Delay (ms)'),
		    fields: ['io_delay'],
		    fieldTitles: [gettext('IO Delay')],
		    store: rrdstore
		},
	    ]
	};

	me.listeners = {
	    activate: function() {
		rrdstore.startUpdate();
	    },
	    destroy: function() {
		rrdstore.stopUpdate();
	    },
	};

	me.callParent();
    }

});