/*global Proxmox */
Ext.ns('PBS');

console.log("Starting Backup Server GUI");

Ext.define('PBS.Utils', {
    singleton: true,

    // Ext.Ajax.request
    API3Request: function(reqOpts) {

	var newopts = Ext.apply({
	    waitMsg: gettext('Please wait...')
	}, reqOpts);

	if (!newopts.url.match(/^\/api3/)) {
	    newopts.url = '/api3/extjs' + newopts.url;
	}
	delete newopts.callback;

	var createWrapper = function(successFn, callbackFn, failureFn) {
	    Ext.apply(newopts, {
		success: function(response, options) {
		    if (options.waitMsgTarget) {
			if (Proxmox.Utils.toolkit === 'touch') {
			    options.waitMsgTarget.setMasked(false);
			} else {
			    options.waitMsgTarget.setLoading(false);
			}
		    }
		    var result = Ext.decode(response.responseText);
		    response.result = result;
		    if (!result.success) {
			response.htmlStatus = Proxmox.Utils.extractRequestError(result, true);
			Ext.callback(callbackFn, options.scope, [options, false, response]);
			Ext.callback(failureFn, options.scope, [response, options]);
			return;
		    }
		    Ext.callback(callbackFn, options.scope, [options, true, response]);
		    Ext.callback(successFn, options.scope, [response, options]);
		},
		failure: function(response, options) {
		    if (options.waitMsgTarget) {
			if (Proxmox.Utils.toolkit === 'touch') {
			    options.waitMsgTarget.setMasked(false);
			} else {
			    options.waitMsgTarget.setLoading(false);
			}
		    }
		    response.result = {};
		    try {
			response.result = Ext.decode(response.responseText);
		    } catch(e) {}
		    var msg = gettext('Connection error') + ' - server offline?';
		    if (response.aborted) {
			msg = gettext('Connection error') + ' - aborted.';
		    } else if (response.timedout) {
			msg = gettext('Connection error') + ' - Timeout.';
		    } else if (response.status && response.statusText) {
			msg = gettext('Connection error') + ' ' + response.status + ': ' + response.statusText;
		    }
		    response.htmlStatus = msg;
		    Ext.callback(callbackFn, options.scope, [options, false, response]);
		    Ext.callback(failureFn, options.scope, [response, options]);
		}
	    });
	};

	createWrapper(reqOpts.success, reqOpts.callback, reqOpts.failure);

	var target = newopts.waitMsgTarget;
	if (target) {
	    if (Proxmox.Utils.toolkit === 'touch') {
		target.setMasked({ xtype: 'loadmask', message: newopts.waitMsg} );
	    } else {
		// Note: ExtJS bug - this does not work when component is not rendered
		target.setLoading(newopts.waitMsg);
	    }
	}
	Ext.Ajax.request(newopts);
    },

    constructor: function() {
	var me = this;

	// do whatever you want here
    }
});