Ext.define('PVE.node.CreateLVM', {
    extend: 'Proxmox.window.Edit',
    xtype: 'pveCreateLVM',

    onlineHelp: 'chapter_lvm',
    subject: 'LVM Volume Group',

    showProgress: true,
    isCreate: true,

    initComponent: function() {
        let me = this;

	if (!me.nodename) {
	    throw "no node name specified";
	}

	me.isCreate = true;

        Ext.applyIf(me, {
	    url: `/nodes/${me.nodename}/disks/lvm`,
	    method: 'POST',
	    items: [
		{
		    xtype: 'pmxDiskSelector',
		    name: 'device',
		    nodename: me.nodename,
		    diskType: 'unused',
		    includePartitions: true,
		    fieldLabel: gettext('Disk'),
		    allowBlank: false,
		},
		{
		    xtype: 'proxmoxtextfield',
		    name: 'name',
		    fieldLabel: gettext('Name'),
		    allowBlank: false,
		},
		{
		    xtype: 'proxmoxcheckbox',
		    name: 'add_storage',
		    fieldLabel: gettext('Add Storage'),
		    value: '1',
		},
	    ],
	});

	me.callParent();
    },
});

Ext.define('PVE.node.LVMList', {
    extend: 'Ext.tree.Panel',
    xtype: 'pveLVMList',

    viewModel: {
	data: {
	    volumeGroup: '',
	},
    },

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

	destroyVolumeGroup: function() {
	    let me = this;
	    let vm = me.getViewModel();
	    let view = me.getView();

	    const volumeGroup = vm.get('volumeGroup');

	    if (!view.nodename) {
		throw "no node name specified";
	    }

	    if (!volumeGroup) {
		throw "no volume group specified";
	    }

	    Ext.create('PVE.window.SafeDestroyStorage', {
		url: `/nodes/${view.nodename}/disks/lvm/${volumeGroup}`,
		item: { id: volumeGroup },
		taskName: 'lvmremove',
		taskDone: () => { view.reload(); },
	    }).show();
	},
    },

    emptyText: PVE.Utils.renderNotFound('VGs'),

    stateful: true,
    stateId: 'grid-node-lvm',

    rootVisible: false,
    useArrows: true,

    columns: [
	{
	    xtype: 'treecolumn',
	    text: gettext('Name'),
	    dataIndex: 'name',
	    flex: 1,
	},
	{
	    text: gettext('Number of LVs'),
	    dataIndex: 'lvcount',
	    width: 150,
	    align: 'right',
	},
	{
	    header: gettext('Assigned to LVs'),
	    width: 130,
	    dataIndex: 'usage',
	    tdCls: 'x-progressbar-default-cell',
	    xtype: 'widgetcolumn',
	    widget: {
		xtype: 'pveProgressBar',
	    },
	},
	{
	    header: gettext('Size'),
	    width: 100,
	    align: 'right',
	    sortable: true,
	    renderer: Proxmox.Utils.format_size,
	    dataIndex: 'size',
	},
	{
	    header: gettext('Free'),
	    width: 100,
	    align: 'right',
	    sortable: true,
	    renderer: Proxmox.Utils.format_size,
	    dataIndex: 'free',
	},
    ],

    tbar: [
	{
	    text: gettext('Reload'),
	    iconCls: 'fa fa-refresh',
	    handler: function() {
		this.up('panel').reload();
	    },
	},
	{
	    text: gettext('Create') + ': Volume Group',
	    handler: function() {
		let view = this.up('panel');
		Ext.create('PVE.node.CreateLVM', {
		    nodename: view.nodename,
		    taskDone: () => view.reload(),
		    autoShow: true,
		});
	    },
	},
	'->',
	{
	    xtype: 'tbtext',
	    data: {
		volumeGroup: undefined,
	    },
	    bind: {
		data: {
		    volumeGroup: "{volumeGroup}",
		},
	    },
	    tpl: [
		'<tpl if="volumeGroup">',
		'Volume group {volumeGroup}:',
		'<tpl else>',
		Ext.String.format(gettext('No {0} selected'), 'volume group'),
		'</tpl>',
	    ],
	},
	{
	    text: gettext('More'),
	    iconCls: 'fa fa-bars',
	    disabled: true,
	    bind: {
		disabled: '{!volumeGroup}',
	    },
	    menu: [
		{
		    text: gettext('Destroy'),
		    itemId: 'remove',
		    iconCls: 'fa fa-fw fa-trash-o',
		    handler: 'destroyVolumeGroup',
		    disabled: true,
		    bind: {
			disabled: '{!volumeGroup}',
		    },
		},
	    ],
	},
    ],

    reload: function() {
	let me = this;
	let sm = me.getSelectionModel();
	Proxmox.Utils.API2Request({
	    url: `/nodes/${me.nodename}/disks/lvm`,
	    waitMsgTarget: me,
	    method: 'GET',
	    failure: (response, opts) => Proxmox.Utils.setErrorMask(me, response.htmlStatus),
	    success: function(response, opts) {
		sm.deselectAll();
		me.setRootNode(response.result.data);
		me.expandAll();
	    },
	});
    },

    listeners: {
	activate: function() {
	    this.reload();
	},
	selectionchange: function(model, selected) {
	    let me = this;
	    let vm = me.getViewModel();

	    if (selected.length < 1 || selected[0].data.parentId !== 'root') {
		vm.set('volumeGroup', '');
	    } else {
		vm.set('volumeGroup', selected[0].data.name);
	    }
	},
    },

    selModel: 'treemodel',
    fields: [
	'name',
	'size',
	'free',
	{
	    type: 'string',
	    name: 'iconCls',
	    calculate: data => `fa x-fa-tree fa-${data.leaf ? 'hdd-o' : 'object-group'}`,
	},
	{
	    type: 'number',
	    name: 'usage',
	    calculate: data => (data.size - data.free) / data.size,
	},
    ],
    sorters: 'name',

    initComponent: function() {
	let me = this;

	me.nodename = me.pveSelNode.data.node;
	if (!me.nodename) {
	    throw "no node name specified";
	}
	me.callParent();

	me.reload();
    },
});