/* APIRequest object */
var APIRequest = {
	method: 'get',
	endpoint: '',
    operation: '',
	query: '',
	headers: {
		'Content-Type': 'application/json',
        'Access-Control-Allow-Origin' : 'clubadmin.ardor.org.ro',
        'Accept': 'application/json'
	},
	body: []
};

/* APIResponse object */
var APIResponse = {
	error: {
		statusCode: 200,
		message: ''
	},
	result: []
};

// TODO: handle them in a smarter way !!
var resourceErrorCodes = [400, 417, 304];

/**
 * FIXME: document this method !
 * @param apiRequest
 * @returns {Promise}
 */
function makeSyncAPICall(apiRequest) {

    return new Promise(function(resolve, reject) {
        
        var callUrl = apiUri['baseurl'] + apiUri[apiRequest.endpoint];
            if(apiRequest.query != '') {
            callUrl += apiRequest.query;
        }

        $.ajax({
            url: callUrl,
            type: apiRequest.method,
            data: apiRequest.body,
            headers: apiRequest.headers,
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            xhrFields: {
                withCredentials: true
            },
            success: function(data, status, xhr) {

                console.log('APICall request successful [('+ apiRequest.method +')'+ callUrl +']: ' + apiRequest.body);
                resolve(data);
            },
            error: function (xhr, status, error) {

            	// FIXME: remove these after debugging !
                console.log('XHR Error Response: ', xhr);
                console.log('APICall request failed [('+ apiRequest.method +')'+ callUrl +']: ' + apiRequest.body, Error(error));

                if (xhr.status == 403 || xhr.status == 401) {
                    // Not authorized
                	LogOut(false);
                } else {

                    var interceptor = new APIResponseInterceptor();
                    var requestInfo = {
                        serviceId: apiRequest.endpoint,
                        operation: apiRequest.operation
                    };

                    var result = interceptor.execute(xhr, requestInfo);
                    reject(result);
                }
            }
        })
    })
}

/**
 * FIXME: document this method !
 * @param params
 * @param auth
 * @returns {{method: string, endpoint: string, query: string, headers: {Content-Type: string, Access-Control-Allow-Origin: string, Accept: string}, body: Array}|*}
 * @private
 */
function _initAPIRequest(params) {

	var apiRequest = APIRequest;
	apiRequest.method = params.method;
	apiRequest.endpoint = params.endpoint;
    apiRequest.operation = params.operation;

	if(params.method == 'get' && params.query_params) {
		apiRequest.query = '?';
		$.each(params.query_params, function(idx, obj) {
			apiRequest.query += obj.key + '=' + obj.val + '&';
		});
		apiRequest.query = apiRequest.query.slice(0,-1);
        apiRequest.body = '';
	} else if(params.method == 'post') {
		apiRequest.body = JSON.stringify(params.body);
        apiRequest.query = '';
	}
	return apiRequest;
}

/**
 * FIXME: document this method !
 * @param method
 * @param endpoint
 * @param operation
 * @param dto
 * @param query_params
 * @returns {*}
 * @private
 */
function initAPIRequest(method, endpoint, operation, dto, query_params) {

    var requestParams = {};
	requestParams.method = method;
	requestParams.endpoint = endpoint;
	requestParams.operation = operation;

	if (method == 'post') {

        dto = (dto) ? dto : {};
        operation = (operation) ? operation : '';
        requestParams.body = {
            operation: operation,
            params: dto
        };
    }

    if (method == 'get') {
        query_params = (query_params) ? query_params : {};
        requestParams.query_params = query_params;
    }

	return _initAPIRequest(requestParams);
}