ui: tape: add TapeInventory panel

since we do not show the tapes anymore in the BackupOverview, add
another panel where we can list the available tapes in the inventory

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

www/tape/TapeInventory.js

@@ -0,0 +1,104 @@
+Ext.define('pbs-model-tapes', {
+    extend: 'Ext.data.Model',
+    fields: [
+	'catalog',
+	'ctime',
+	'expired',
+	'label-text',
+	'location',
+	'media-set-ctime',
+	'media-set-name',
+	'media-set-uuid',
+	'pool',
+	'seq-nr',
+	'status',
+	'uuid',
+    ],
+    idProperty: 'label-text',
+    proxy: {
+	type: 'proxmox',
+	url: '/api2/json/tape/media/list',
+    },
+});
+
+Ext.define('PBS.TapeManagement.TapeInventory', {
+    extend: 'Ext.grid.Panel',
+    alias: 'widget.pbsTapeInventory',
+
+    controller: {
+	xclass: 'Ext.app.ViewController',
+
+	reload: function() {
+	    this.getView().getStore().rstore.load();
+	},
+
+	stopStore: function() {
+	    this.getView().getStore().rstore.stopUpdate();
+	},
+
+	startStore: function() {
+	    this.getView().getStore().rstore.startUpdate();
+	},
+    },
+
+    listeners: {
+	beforedestroy: 'stopStore',
+	deactivate: 'stopStore',
+	activate: 'startStore',
+    },
+
+    store: {
+	type: 'diff',
+	rstore: {
+	    type: 'update',
+	    storeid: 'proxmox-tape-tapes',
+	    model: 'pbs-model-tapes',
+	},
+	sorters: 'label-text',
+    },
+
+    columns: [
+	{
+	    text: gettext('Label'),
+	    dataIndex: 'label-text',
+	    flex: 1,
+	},
+	{
+	    text: gettext('Pool'),
+	    dataIndex: 'pool',
+	    sorter: (a, b) => (a.data.pool || "").localeCompare(b.data.pool || ""),
+	    flex: 1,
+	},
+	{
+	    text: gettext('Media Set'),
+	    dataIndex: 'media-set-name',
+	    flex: 2,
+	    sorter: function(a, b) {
+		return (a.data['media-set-ctime'] || 0) - (b.data['media-set-ctime'] || 0);
+	    },
+	},
+	{
+	    text: gettext('Location'),
+	    dataIndex: 'location',
+	    flex: 1,
+	    renderer: function(value) {
+		if (value === 'offline') {
+		    return `<i class="fa fa-circle-o"></i> ${gettext("Offline")}`;
+		} else if (value.startsWith('online-')) {
+		    let location = value.substring(value.indexOf('-') + 1);
+		    return `<i class="fa fa-dot-circle-o"></i> ${gettext("Online")} - ${location}`;
+		} else if (value.startsWith('vault-')) {
+		    let location = value.substring(value.indexOf('-') + 1);
+		    return `<i class="fa fa-archive"></i> ${gettext("Vault")} - ${location}`;
+		} else {
+		    return value;
+		}
+	    },
+	},
+	{
+	    text: gettext('Status'),
+	    dataIndex: 'status',
+	    flex: 1,
+	},
+    ],
+});

www/tape/TapeManagement.js

@@ -16,6 +16,11 @@ Ext.define('PBS.TapeManagement', {
 	    itemId: 'backup',
 	    xtype: 'pbsBackupOverview',
 	},
+	{
+	    title: gettext('Tape Inventory'),
+	    itemId: 'inventory',
+	    xtype: 'pbsTapeInventory',
+	},
 	{
 	    title: gettext('Library'),
 	    itemId: 'library',