/*jslint confusion: true*/
Ext.define('PVE.ceph.CephInstallWizard', {
	extend: 'PVE.window.Wizard',
	alias: 'widget.pveCephInstallWizard',
	mixins: ['Proxmox.Mixin.CBind'],
	resizable: false,
	nodename: undefined,
	viewModel: {
	    data: {
		nodename: '',
		configuration: true,
		isInstalled: false
	    }
	},
	cbindData: {
	    nodename: undefined
	},
	title: gettext('Setup'),
	navigateNext: function() {
	    var tp = this.down('#wizcontent');
	    var atab = tp.getActiveTab();

	    var next = tp.items.indexOf(atab) + 1;
	    var ntab = tp.items.getAt(next);
	    if (ntab) {
		ntab.enable();
		tp.setActiveTab(ntab);
	    }
	},
	setInitialTab: function (index) {
	    var tp = this.down('#wizcontent');
	    var initialTab = tp.items.getAt(index);
	    initialTab.enable();
	    tp.setActiveTab(initialTab);
	},
	onShow: function() {
		this.callParent(arguments);
		var isInstalled = this.getViewModel().get('isInstalled');
		if (isInstalled) {
		    this.getViewModel().set('configuration', false);
		    this.setInitialTab(2);
		}
	},
	items: [
	    {
		title: gettext('Info'),
		xtype: 'panel',
		border: false,
		bodyBorder: false,
		onlineHelp: 'chapter_pveceph',
		html: '<h3>Ceph?</h3>'+
		'<blockquote cite="https://ceph.com/"><p>"<b>Ceph</b> is a unified, distributed storage system designed for excellent performance, reliability and scalability."</p></blockquote>'+
		'<p><b>Ceph</b> is currently <b>not installed</b> on this node, click on the next button below to start the installation.'+
		' This wizard will guide you through the necessary steps, after the initial installation you will be offered to create an initial configuration.'+
		' The configuration step is only needed once per cluster and will be skipped if a config is already present.</p>'+
		'<p>Please take a look at our documentation, by clicking the help button below, before starting the installation, '+
		'if you want to gain deeper knowledge about Ceph visit <a target="_blank" href="http://docs.ceph.com/docs/master/">ceph.com</a>.</p>',
		listeners: {
		    activate: function() {
			// notify owning container that it should display a help button
			if (this.onlineHelp) {
			    Ext.GlobalEvents.fireEvent('proxmoxShowHelp', this.onlineHelp);
			}
			this.up('pveCephInstallWizard').down('#back').hide(true);
			this.up('pveCephInstallWizard').down('#next').setText(gettext('Start installation'));
		    },
		    deactivate: function() {
			if (this.onlineHelp) {
			    Ext.GlobalEvents.fireEvent('proxmoxHideHelp', this.onlineHelp);
			}
			this.up('pveCephInstallWizard').down('#next').setText(gettext('Next'));
		    }
		}
	    },
	    {
		title: gettext('Installation'),
		xtype: 'panel',
		layout: 'fit',
		cbind:{
		    nodename: '{nodename}'
		},
		viewModel: {}, // needed to inherit parent viewModel data
		listeners: {
		    afterrender: function() {
			var me = this;
			if (this.getViewModel().get('isInstalled')) {
			    this.mask("Ceph is already installed, click next to create your configuration.",['pve-static-mask']);
			} else {
			    me.down('pveNoVncConsole').fireEvent('activate');
			}
		    },
		    activate: function() {
			var me = this;
			var nodename = me.nodename;
			me.updateStore = Ext.create('Proxmox.data.UpdateStore', {
				storeid: 'ceph-status-' + nodename,
				interval: 1000,
				proxy: {
				    type: 'proxmox',
				    url: '/api2/json/nodes/' + nodename + '/ceph/status'
				},
				listeners: {
				    load: function(rec, response, success, operation) {

					if (success) {
					    me.updateStore.stopUpdate();
					    me.down('textfield').setValue('success');
					} else if (operation.error.statusText.match("not initialized", "i")) {
					    me.updateStore.stopUpdate();
					    me.up('pveCephInstallWizard').getViewModel().set('configuration',false);
					    me.down('textfield').setValue('success');
					} else if (operation.error.statusText.match("rados_connect failed", "i")) {
					    me.updateStore.stopUpdate();
					    me.up('pveCephInstallWizard').getViewModel().set('configuration',true);
					    me.down('textfield').setValue('success');
					} else if (!operation.error.statusText.match("not installed", "i")) {
					    Proxmox.Utils.setErrorMask(me, operation.error.statusText);
					}
				    }
				}
			});
			me.updateStore.startUpdate();
		    },
		    destroy: function() {
			var me = this;
			if (me.updateStore) {
			    me.updateStore.stopUpdate();
			}
		    }
		},
		items: [
		    {
			itemId: 'jsconsole',
			consoleType: 'cmd',
			xtermjs: true,
			xtype: 'pveNoVncConsole',
			cbind:{
			    nodename: '{nodename}'
			},
			cmd: 'ceph_install'
		    },
		    {
			xtype: 'textfield',
			name: 'installSuccess',
			value: '',
			allowBlank: false,
			submitValue: false,
			hidden: true
		    }
		]
	    },
	    {
		xtype: 'inputpanel',
		title: gettext('Configuration'),
		onlineHelp: 'chapter_pveceph',
		cbind: {
		    nodename: '{nodename}'
		},
		viewModel: {
		    data: {
			replicas: undefined,
			minreplicas: undefined
		    }
		},
		listeners: {
		    activate: function() {
			this.up('pveCephInstallWizard').down('#submit').setText(gettext('Next'));
		    },
		    beforeshow: function() {
			if (this.up('pveCephInstallWizard').getViewModel().get('configuration')) {
			    this.mask("Configuration already initialized",['pve-static-mask']);
			} else {
			    this.unmask();
			}
		    },
		    deactivate: function() {
			this.up('pveCephInstallWizard').down('#submit').setText(gettext('Finish'));
		    }
		},
		column1: [
		    {
			xtype: 'displayfield',
			value: gettext('Ceph cluster configuration') + ':'
		    },
		    {
			xtype: 'proxmoxNetworkSelector',
			name: 'network',
			value: '',
			fieldLabel: 'Public Network IP/CIDR',
			bind: {
			    allowBlank: '{configuration}'
			},
			cbind: {
			    nodename: '{nodename}'
			}
		    },
		    {
			xtype: 'proxmoxNetworkSelector',
			name: 'cluster-network',
			fieldLabel: 'Cluster Network IP/CIDR',
			allowBlank: true,
			autoSelect: false,
			emptyText: gettext('Same as Public Network'),
			cbind: {
			    nodename: '{nodename}'
			}
		    }
		    // FIXME: add hint about cluster network and/or reference user to docs??
		],
		column2: [
		    {
			xtype: 'displayfield',
			value: gettext('First Ceph monitor') + ':'
		    },
		    {
			xtype: 'pveNodeSelector',
			fieldLabel: gettext('Monitor node'),
			name: 'mon-node',
			selectCurNode: true,
			allowBlank: false
		    },
		    {
			xtype: 'displayfield',
			value: gettext('Additional monitors are recommended. They can be created at any time in the Monitor tab.'),
			userCls: 'pve-hint'
		    }
		],
		advancedColumn1: [
		    {
			xtype: 'numberfield',
			name: 'size',
			fieldLabel: 'Number of replicas',
			bind: {
			    value: '{replicas}'
			},
			maxValue: 7,
			minValue: 2,
			emptyText: '3'
		    },
		    {
			xtype: 'numberfield',
			name: 'min_size',
			fieldLabel: 'Minimum replicas',
			bind: {
			    maxValue: '{replicas}',
			    value: '{minreplicas}'
			},
			minValue: 2,
			maxValue: 3,
			setMaxValue: function(value) {
			    this.maxValue = Ext.Number.from(value, 2);
			    // allow enough to avoid split brains with max 'size', but more makes simply no sense
			    if (this.maxValue > 4) {
				this.maxValue = 4;
			    }
			    this.toggleSpinners();
			    this.validate();
			},
			emptyText: '2'
		    }
		],
		onGetValues: function(values) {
		    ['cluster-network', 'size', 'min_size'].forEach(function(field) {
			if (!values[field]) {
			    delete values[field];
			}
		    });
		    return values;
		},
		onSubmit: function() {
		    var me = this;
		    if (!this.up('pveCephInstallWizard').getViewModel().get('configuration')) {
			var wizard = me.up('window');
			var kv = wizard.getValues();
			delete kv['delete'];
			var monNode = kv['mon-node'];
			delete kv['mon-node'];
			var nodename = me.nodename;
			delete kv.nodename;
			Proxmox.Utils.API2Request({
			    url: '/nodes/' + nodename + '/ceph/init',
			    waitMsgTarget: wizard,
			    method: 'POST',
			    params: kv,
			    success: function() {
				Proxmox.Utils.API2Request({
				    url: '/nodes/' + monNode + '/ceph/mon/' + monNode,
				    waitMsgTarget: wizard,
				    method: 'POST',
				    success: function() {
					me.up('pveCephInstallWizard').navigateNext();
				    },
				    failure: function(response, opts) {
					Ext.Msg.alert(gettext('Error'), response.htmlStatus);
				    }
				});
			    },
			    failure: function(response, opts) {
				Ext.Msg.alert(gettext('Error'), response.htmlStatus);
			    }
			});

		    } else {
			me.up('pveCephInstallWizard').navigateNext();
		    }
		}
	    },
	    {
		title: gettext('Success'),
		xtype: 'panel',
		border: false,
		bodyBorder: false,
		onlineHelp: 'pve_ceph_install',
		html: '<h3>Installation successful!</h3>'+
		'<p>The basic installation and configuration is completed, depending on your setup some of the following steps are required to start using Ceph:</p>'+
		    '<ol><li>Install Ceph on other nodes</li>'+
		    '<li>Create additional Ceph Monitors</li>'+
		    '<li>Create Ceph OSDs</li>'+
		    '<li>Create Ceph Pools</li></ol>'+
		'<p>To learn more click on the help button below.</p>',
		listeners: {
		    activate: function() {
			// notify owning container that it should display a help button
			if (this.onlineHelp) {
			    Ext.GlobalEvents.fireEvent('proxmoxShowHelp', this.onlineHelp);
			}

			var tp = this.up('#wizcontent');
			var idx = tp.items.indexOf(this)-1;
			for(;idx >= 0;idx--) {
			    var nc = tp.items.getAt(idx);
			    if (nc) {
				nc.disable();
			    }
			}
		    },
		    deactivate: function() {
			if (this.onlineHelp) {
			    Ext.GlobalEvents.fireEvent('proxmoxHideHelp', this.onlineHelp);
			}
		    }
		},
		onSubmit: function() {
		    var wizard = this.up('pveCephInstallWizard');
		    wizard.close();
		}
	    }
	]
    });