Ext.define('PVE.grid.BackupView', {
    extend: 'Ext.grid.GridPanel',

    alias: ['widget.pveBackupView'],

    onlineHelp: 'chapter_vzdump',

    stateful: true,
    stateId: 'grid-guest-backup',

    initComponent: function() {
	var me = this;

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

	var vmid = me.pveSelNode.data.vmid;
	if (!vmid) {
	    throw "no VM ID specified";
	}

	var vmtype = me.pveSelNode.data.type;
	if (!vmtype) {
	    throw "no VM type specified";
	}

	var vmtypeFilter;
	if (vmtype === 'lxc' || vmtype === 'openvz') {
	    vmtypeFilter = function(item) {
		return PVE.Utils.volume_is_lxc_backup(item.data.volid, item.data.format);
	    };
	} else if (vmtype === 'qemu') {
	    vmtypeFilter = function(item) {
		return PVE.Utils.volume_is_qemu_backup(item.data.volid, item.data.format);
	    };
	} else {
	    throw "unsupported VM type '" + vmtype + "'";
	}

	var searchFilter = {
	    property: 'volid',
	    value: '',
	    anyMatch: true,
	    caseSensitive: false,
	};

	var vmidFilter = {
	    property: 'vmid',
	    value: vmid,
	    exactMatch: true,
	};

	me.store = Ext.create('Ext.data.Store', {
	    model: 'pve-storage-content',
	    sorters: {
		property: 'volid',
		order: 'DESC',
	    },
	    filters: [
	        vmtypeFilter,
		searchFilter,
		vmidFilter,
		],
	});

	let updateFilter = function() {
	    me.store.filter([
		vmtypeFilter,
		searchFilter,
		vmidFilter,
	    ]);
	};

	var reload = Ext.Function.createBuffered(function() {
	    if (me.store) {
		me.store.load();
	    }
	}, 100);

	let isPBS = false;
	var setStorage = function(storage) {
	    var url = '/api2/json/nodes/' + nodename + '/storage/' + storage + '/content';
	    url += '?content=backup';

	    me.store.setProxy({
		type: 'proxmox',
		url: url,
	    });

	    reload();
	};

	let file_restore_btn;

	var storagesel = Ext.create('PVE.form.StorageSelector', {
	    nodename: nodename,
	    fieldLabel: gettext('Storage'),
	    labelAlign: 'right',
	    storageContent: 'backup',
	    allowBlank: false,
	    listeners: {
		change: function(f, value) {
		    let storage = f.getStore().findRecord('storage', value, 0, false, true, true);
		    if (storage) {
			isPBS = storage.data.type === 'pbs';
			me.getColumns().forEach((column) => {
			    let id = column.dataIndex;
			    if (id === 'verification' || id === 'encrypted') {
				column.setHidden(!isPBS);
			    }
			});
		    } else {
			isPBS = false;
		    }
		    setStorage(value);
		    if (file_restore_btn) {
			file_restore_btn.setHidden(!isPBS);
		    }
		},
	    },
	});

	var storagefilter = Ext.create('Ext.form.field.Text', {
	    fieldLabel: gettext('Search'),
	    labelWidth: 50,
	    labelAlign: 'right',
	    enableKeyEvents: true,
	    value: searchFilter.value,
	    listeners: {
		buffer: 500,
		keyup: function(field) {
		    me.store.clearFilter(true);
		    searchFilter.value = field.getValue();
		    updateFilter();
		},
	    },
	});

	var vmidfilterCB = Ext.create('Ext.form.field.Checkbox', {
	    boxLabel: gettext('Filter VMID'),
	    value: '1',
	    listeners: {
		change: function(cb, value) {
		    vmidFilter.value = value ? vmid : '';
		    vmidFilter.exactMatch = !!value;
		    updateFilter();
		},
	    },
	});

	var sm = Ext.create('Ext.selection.RowModel', {});

	var backup_btn = Ext.create('Ext.button.Button', {
	    text: gettext('Backup now'),
	    handler: function() {
		var win = Ext.create('PVE.window.Backup', {
		    nodename: nodename,
		    vmid: vmid,
		    vmtype: vmtype,
		    storage: storagesel.getValue(),
		    listeners: {
			close: function() {
			    reload();
			},
		    },
		});
		win.show();
	    },
	});

	var restore_btn = Ext.create('Proxmox.button.Button', {
	    text: gettext('Restore'),
	    disabled: true,
	    selModel: sm,
	    enableFn: function(rec) {
		return !!rec;
	    },
	    handler: function(b, e, rec) {
		let win = Ext.create('PVE.window.Restore', {
		    nodename: nodename,
		    vmid: vmid,
		    volid: rec.data.volid,
		    volidText: PVE.Utils.render_storage_content(rec.data.volid, {}, rec),
		    vmtype: vmtype,
		    isPBS: isPBS,
		});
		win.show();
		win.on('destroy', reload);
	    },
	});

	var delete_btn = Ext.create('Proxmox.button.StdRemoveButton', {
	    selModel: sm,
	    dangerous: true,
	    delay: 5,
	    confirmMsg: function(rec) {
		var msg = Ext.String.format(gettext('Are you sure you want to remove entry {0}'),
					    "'" + rec.data.volid + "'");
		msg += " " + gettext('This will permanently erase all data.');

		return msg;
	    },
	    getUrl: function(rec) {
		var storage = storagesel.getValue();
		return '/nodes/' + nodename + '/storage/' + storage + '/content/' + rec.data.volid;
	    },
	    callback: function() {
		reload();
	    },
	});

	var config_btn = Ext.create('Proxmox.button.Button', {
	    text: gettext('Show Configuration'),
	    disabled: true,
	    selModel: sm,
	    enableFn: function(rec) {
		return !!rec;
	    },
	    handler: function(b, e, rec) {
		var storage = storagesel.getValue();
		if (!storage) {
		    return;
		}

		var win = Ext.create('PVE.window.BackupConfig', {
		    volume: rec.data.volid,
		    pveSelNode: me.pveSelNode,
		});

		win.show();
	    },
	});

	// declared above so that the storage selector can change this buttons hidden state
	file_restore_btn = Ext.create('Proxmox.button.Button', {
	    text: gettext('File Restore'),
	    disabled: true,
	    selModel: sm,
	    enableFn: function(rec) {
		return !!rec && isPBS;
	    },
	    hidden: !isPBS,
	    handler: function(b, e, rec) {
		var storage = storagesel.getValue();
		let isVMArchive = PVE.Utils.volume_is_qemu_backup(rec.data.volid, rec.data.format);
		Ext.create('Proxmox.window.FileBrowser', {
		    title: gettext('File Restore') + " - " + rec.data.text,
		    listURL: `/api2/json/nodes/localhost/storage/${storage}/file-restore/list`,
		    downloadURL: `/api2/json/nodes/localhost/storage/${storage}/file-restore/download`,
		    extraParams: {
			volume: rec.data.volid,
		    },
		    archive: isVMArchive ? 'all' : undefined,
		    autoShow: true,
		});
	    },
	});

	Ext.apply(me, {
	    selModel: sm,
	    tbar: {
		overflowHandler: 'scroller',
		items: [
		    backup_btn,
		    '-',
		    restore_btn,
		    file_restore_btn,
		    config_btn,
		    {
			xtype: 'proxmoxButton',
			text: gettext('Edit Notes'),
			disabled: true,
			handler: function() {
			    let volid = sm.getSelection()[0].data.volid;
			    var storage = storagesel.getValue();
			    Ext.create('Proxmox.window.Edit', {
				autoLoad: true,
				width: 600,
				height: 400,
				resizable: true,
				title: gettext('Notes'),
				url: `/api2/extjs/nodes/${nodename}/storage/${storage}/content/${volid}`,
				layout: 'fit',
				items: [
				    {
					xtype: 'textarea',
					layout: 'fit',
					name: 'notes',
					height: '100%',
				    },
				],
				listeners: {
				    destroy: () => reload(),
				},
			    }).show();
			},
		    },
		    '-',
		    delete_btn,
		    '->',
		    storagesel,
		    '-',
		    vmidfilterCB,
		    storagefilter,
		],
	    },
	    columns: [
		{
		    header: gettext('Name'),
		    flex: 2,
		    sortable: true,
		    renderer: PVE.Utils.render_storage_content,
		    dataIndex: 'volid',
		},
		{
		    header: gettext('Notes'),
		    dataIndex: 'notes',
		    flex: 1,
		    renderer: Ext.htmlEncode,
		},
		{
		    header: gettext('Date'),
		    width: 150,
		    dataIndex: 'vdate',
		},
		{
		    header: gettext('Format'),
		    width: 100,
		    dataIndex: 'format',
		},
		{
		    header: gettext('Size'),
		    width: 100,
		    renderer: Proxmox.Utils.format_size,
		    dataIndex: 'size',
		},
		{
		    header: gettext('VMID'),
		    dataIndex: 'vmid',
		    hidden: true,
		},
		{
		    header: gettext('Encrypted'),
		    dataIndex: 'encrypted',
		    renderer: PVE.Utils.render_backup_encryption,
		},
		{
		    header: gettext('Verify State'),
		    dataIndex: 'verification',
		    renderer: PVE.Utils.render_backup_verification,
		},
	    ],
	});

	me.callParent();
    },
});