odoo.define('im_support.test_utils', function (require) {
"use strict";

var mailTestUtils = require('mail.testUtils');
var supportSession = require('im_support.SupportSession');

var testUtils = require('web.test_utils');


mailTestUtils.MockMailService.include({
    getServices: function () {
        return _.extend(this._super(), {
            support_bus_service: this.bus_service(),
        });
    },
});

/**
 * Extended version of addMockEnvironment that mocks RPCs done to the Support
 * server (CORS), and enables a longpolling to the Support server, optionally.
 *
 * @param {Widget} widget
 * @param {Object} params
 * @param {function} [params.mockSupportRPC]
 * @param {boolean} [params.enableSupportPoll=false]
 */
function addMockSupportEnvironment(widget, params) {
    // mock CORS RPCs
    var originalRPC = supportSession.rpc;
    var defaultMockSupportRPC = function (route, args) {
        if (route === '/odoo_im_support/get_support_channel') {
            return $.when({
                available: true,
                channel_type: 'livechat',
                public: 'private',
                uuid: args.channel_uuid,
            });
        }
        if (route === '/odoo_im_support/fetch_messages') { // fetching history
            return $.when([]);
        }
        if (route === '/odoo_im_support/chat_post') {
            return $.when();
        }
        if (route === '/longpolling/support_poll') {
            return $.Deferred();
        }
    };
    supportSession.rpc = function (route, args) {
        var result;
        if (params.mockSupportRPC) {
            var _super = this._super;
            this._super = defaultMockSupportRPC.bind(this, route, args);
            result = params.mockSupportRPC.apply(this, arguments);
            this._super = _super;
        } else {
            result = defaultMockSupportRPC.apply(this, arguments);
        }
        return result;
    };
    testUtils.addMockEnvironment(widget, params);
    var widgetDestroy = widget.destroy;
    widget.destroy = function () {
        supportSession.rpc = originalRPC;
        widgetDestroy.call(this);
    };

    // intercepts the getItem call to localStorage service for key
    // 'im_support.poll_timeout', to simulate a pending longpolling connection to
    // the Support server, such that the initSupport initiates a poll connection
    if (params.enableSupportPoll) {
        testUtils.intercept(widget, 'call_service', function (ev) {
            if (ev.data.service === 'local_storage') {
                if (ev.data.method === 'getItem' && ev.data.args[0] === 'im_support.poll_timeout') {
                    ev.data.callback(Date.now() + (60 * 1000));
                    // hack to prevent the default mock to handle the request and erase the above value
                    ev.data.callback = function () {};
                }
            }
        }, true);
        // manually call initSupport (which is supposed to be called at webclient startup)
        widget.call('mail_service', 'initSupport');
    }
}

return {
    addMockSupportEnvironment: addMockSupportEnvironment,
};

});
