Ext.define('PMG.Dashboard', {
    extend: 'Ext.panel.Panel',
    xtype: 'pmgDashboard',

    controller: {
	xclass: 'Ext.app.ViewController',

	openDashboardOptions: function() {
	    var me = this;
	    var viewModel = me.getViewModel();
	    Ext.create('Ext.window.Window', {
		modal: true,
		width: 300,
		title: gettext('Dashboard Options'),
		layout: {
		    type: 'auto',
		},
		items: [{
		    xtype: 'form',
		    bodyPadding: '10 10 10 10',
		    defaultButton: 'savebutton',
		    items: [{
			xtype: 'proxmoxintegerfield',
			itemId: 'hours',
			labelWidth: 100,
			anchor: '100%',
			allowBlank: false,
			minValue: 1,
			maxValue: 24,
			value: viewModel.get('hours'),
			fieldLabel: gettext('Hours to show'),
		    }],
		    buttons: [{
			text: gettext('Save'),
			reference: 'loginButton',
			formBind: true,
			handler: function() {
			    var win = this.up('window');
			    var hours = win.down('#hours').getValue();
			    me.setHours(hours, true);
			    win.close();
			},
		    }],
		}],
	    }).show();
	},

	setHours: function(hours, setState) {
	    var me = this;
	    var viewModel = me.getViewModel();
	    viewModel.set('hours', hours);
	    viewModel.notify();

	    Ext.Array.forEach(['recentmails', 'receivers'], function(item) {
		viewModel.getStore(item).reload();
	    });

	    if (setState) {
		var sp = Ext.state.Manager.getProvider();
		sp.set('dashboard-hours', hours);
	    }
	},

	updateMailStats: function(store, records, success) {
	    if (!success) {
		return;
	    }
	    var me = this;
	    var viewModel = me.getViewModel();

	    var count = 0;
	    var bytes_in = 0;
	    var bytes_out = 0;
	    var ptime = 0;
	    var avg_ptime = 'N/A';

	    records.forEach(function(item) {
		bytes_in += item.data.bytes_in;
		bytes_out += item.data.bytes_out;
		// unnormalize
		count += (item.data.count*item.data.timespan)/60;
		ptime += item.data.ptimesum;
	    });

	    if (count) {
		avg_ptime = (ptime/count).toFixed(2) + " s";
	    }

	    viewModel.set('bytes_in', Proxmox.Utils.format_size(bytes_in));
	    viewModel.set('bytes_out', Proxmox.Utils.format_size(bytes_out));
	    viewModel.set('avg_ptime', avg_ptime);
	},

	updateClusterStats: function(store, records, success) {
	    if (!success) {
		return;
	    }
	    var me = this;
	    var viewmodel = me.getViewModel();

	    var subStatus = 2; // 2 = all good, 1 = different leves, 0 = none
	    var subLevel = "";

	    var cpu = 0;
	    var mem = 0;
	    var hd = 0;
	    var count = records.length;
	    var errors = [];

	    records.forEach(function(item) {
		// subscription level check
		if (subStatus && item.data.level) {
		    if (subLevel !== "" && subLevel !== item.data.level) {
			subStatus = 1;
		    } else if (subLevel === "") {
			subLevel = item.data.level;
		    }
		} else {
		    subStatus = 0;
		}

		// resources count
		cpu += item.data.cpu || 0;

		var memory = item.data.memory || { used: 0, total: 1 };
		mem += memory.used/memory.total;

		var rootfs = item.data.rootfs || { used: 0, total: 1 };
		hd += rootfs.used/rootfs.total;

		if (item.data.conn_error && count > 1) {
		    count--;
		    errors.push({
			name: item.data.name,
			msg: item.data.conn_error,
		    });
		}
	    });

	    var subscriptionPanel = me.lookup('subscription');
	    subscriptionPanel.setSubStatus(subStatus);

	    me.lookup('nodeInfo').setSubscriptionStatus(subStatus);

	    // the node info already displays this information in case there is no cluster
	    me.lookup('clusterResources').setHidden(records.length === 1);

	    cpu = cpu/count;
	    mem = mem/count;
	    hd = hd/count;

	    var cpuPanel = me.lookup('cpu');
	    cpuPanel.updateValue(cpu);

	    var memPanel = me.lookup('mem');
	    memPanel.updateValue(mem);

	    var hdPanel = me.lookup('hd');
	    hdPanel.updateValue(hd);

	    if (errors.length && !viewmodel.get('error_shown')) {
		var text = "";
		errors.forEach(function(error) {
		    text += error.name + ':<br>' + error.msg + '<br>';
		});
		Ext.Msg.alert(gettext('Error'), text);
		viewmodel.set('error_shown', true);
	    }
	},

	updateRepositoryStatus: function(store, records, success) {
	    if (!success) {
		return;
	    }

	    let me = this;
	    me.lookup('nodeInfo').setRepositoryInfo(records[0].data['standard-repos']);
	},

	init: function(view) {
	    var me = this;
	    var sp = Ext.state.Manager.getProvider();
	    var hours = sp.get('dashboard-hours') || 12;
	    me.setHours(hours, false);
	},
    },

    viewModel: {
	data: {
	    timespan: 300, // in seconds
	    hours: 12, // in hours
	    error_shown: false,
	    'bytes_in': 0,
	    'bytes_out': 0,
	    'avg_ptime': 0.0,
	},

	stores: {
	    cluster: {
		storeid: 'dash-cluster',
		type: 'update',
		interval: 5000,
		autoStart: true,
		autoDestroy: true,
		proxy: {
		    extraParams: { list_single_node: 1 },
		    type: 'proxmox',
		    url: '/api2/json/config/cluster/status',
		},
		listeners: {
		    load: 'updateClusterStats',
		},
	    },
	    recentmails: {
		storeid: 'dash-recent',
		interval: 5000,
		type: 'update',
		autoStart: true,
		autoDestroy: true,
		proxy: {
		    type: 'proxmox',
		    url: '/api2/json/statistics/recent',
		    extraParams: {
			hours: '{hours}',
			timespan: '{timespan}',
		    },
		},
		fields: [
		    {
			type: 'number', name: 'count',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'count_in',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'count_out',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'spam',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'spam_in',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'spam_out',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'virus',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    {
			type: 'number', name: 'virus_in',
			convert: PMG.Utils.convert_field_to_per_min,
		    },
		    { type: 'integer', name: 'virus_out' },
		    { type: 'integer', name: 'bytes_in' },
		    { type: 'integer', name: 'bytes_out' },
		    { type: 'number', name: 'ptimesum' },
		    { type: 'date', dateFormat: 'timestamp', name: 'time' },
		],
		listeners: {
		    load: 'updateMailStats',
		},
	    },
	    receivers: {
		storeid: 'dash-receivers',
		interval: 10000,
		type: 'update',
		autoStart: true,
		autoDestroy: true,
		proxy: {
		    type: 'proxmox',
		    url: '/api2/json/statistics/recentreceivers',
		    extraParams: {
			hours: '{hours}',
		    },
		},
		fields: [
		    { type: 'integer', name: 'count' },
		    { type: 'string', name: 'receiver' },
		],
	    },
	    repositories: {
		storeid: 'dash-repositories',
		type: 'update',
		interval: 15000,
		autoStart: true,
		autoLoad: true,
		autoDestroy: true,
		proxy: {
		    type: 'proxmox',
		    url: '/api2/json/nodes/localhost/apt/repositories',
		},
		listeners: {
		    load: 'updateRepositoryStatus',
		},
	    },
	},
    },

    bind: {
	title: gettext('Dashboard') + ' (' +
	    Ext.String.format(gettext('{0} hours'), '{hours}') + ')',
    },

    layout: {
	type: 'column',
    },
    border: false,

    bodyPadding: '20 0 0 20',

    defaults: {
	columnWidth: 0.5,
	xtype: 'panel',
	margin: '0 20 20 0',
    },

    tools: [
	{
	    type: 'gear',
	    handler: 'openDashboardOptions',
	},
    ],

    scrollable: true,

    items: [
	{
	    height: 300,
	    flex: 1,
	    iconCls: 'fa fa-tachometer',
	    title: gettext('E-Mail Volume'),
	    layout: {
		type: 'vbox',
		align: 'stretch',
	    },
	    defaults: {
		xtype: 'pmgMiniGraph',
		bind: {
		    store: '{recentmails}',
		},
	    },
	    items: [
		{
		    fields: ['count'],
		    fieldTitles: [gettext('Mails / min')],
		    seriesConfig: {
			colors: ['#00617F'],
			style: {
			    opacity: 0.60,
			    lineWidth: 1,
			},
			highlightCfg: {
			    opacity: 1,
			    scaling: 1,
			},
		    },
		},
		{
		    fields: ['spam'],
		    fieldTitles: [gettext('Spam / min')],
		    seriesConfig: {
			colors: ['#E67300'],
			style: {
			    opacity: 0.60,
			    lineWidth: 1,
			},
			highlightCfg: {
			    opacity: 1,
			    scaling: 1,
			},
		    },
		},
	    ],
	},
	{
	    xtype: 'container',
	    height: 300,
	    layout: {
		type: 'vbox',
		align: 'stretch',
	    },
	    items: [
		{
		    xtype: 'pmgMailProcessing',
		    title: gettext('E-Mail Processing'),
		    iconCls: 'fa fa-hourglass-half',
		    height: 180,
		    bind: {
			data: {
			    'bytes_in': '{bytes_in}',
			    'bytes_out': '{bytes_out}',
			    'avg_ptime': '{avg_ptime}',
			},
		    },
		},
		{
		    iconCls: 'fa fa-ticket',
		    title: 'Subscription',
		    reference: 'subscription',
		    xtype: 'pmgSubscriptionInfo',
		    margin: '10 0 0 0',
		    height: 110,
		},
	    ],
	},
	{
	    xtype: 'pmgNodeInfoPanel',
	    reference: 'nodeInfo',
	    height: 275,
	    bodyPadding: '15 5 15 5',
	    iconCls: 'fa fa-tasks',
	},
	{
	    height: 275,
	    iconCls: 'fa fa-list',
	    title: gettext('Top Receivers'),

	    bodyPadding: '20 20 20 20',
	    layout: {
		type: 'vbox',
		pack: 'center',
		align: 'stretch',
	    },
	    items: [{
		xtype: 'grid',
		bind: {
		    store: '{receivers}',
		},
		emptyText: gettext('No data in database'),
		// remove all borders/lines/headers
		border: false,
		bodyBorder: false,
		hideHeaders: true,
		header: false,
		columnLines: false,
		rowLines: false,
		viewConfig: {
		    stripeRows: false,
		},
		columns: [
		    {
			dataIndex: 'receiver',
			flex: 1,
			text: gettext('Receiver'),
		    },
		    {
			dataIndex: 'count',
			align: 'right',
			text: gettext('Count'),
		    },
		],
	    }],
	},
	{
	    height: 250,
	    iconCls: 'fa fa-tasks',
	    title: gettext('Cluster Resources (average)'),
	    reference: 'clusterResources',
	    hidden: true,
	    bodyPadding: '0 20 0 20',
	    layout: {
		type: 'hbox',
		align: 'center',
	    },
	    defaults: {
		xtype: 'proxmoxGauge',
		spriteFontSize: '20px',
		flex: 1,
	    },
	    items: [
		{
		    title: gettext('CPU'),
		    reference: 'cpu',
		},
		{
		    title: gettext('Memory'),
		    reference: 'mem',
		},
		{
		    title: gettext('Storage'),
		    reference: 'hd',
		},
	    ],
	},
    ],
});