/**
 * This file is used for REST API requests
 */


/**
 * Execute REST API request
 *
 * @param string URL
 * @param array|function Additional params for request OR Function on success request
 * @param function Function on success request
 * @param string Type method: 'GET', 'POST', 'DELETE', etc.
 */
function evo_rest_api_request( url, params_func, func_method, method )
{
var params = params_func;
var func = func_method;
if( typeof( params_func ) == 'function' )
{ // This is a request without additional params:
func = params_func;
params = {};
method = func_method;
}

if( typeof( method ) == 'undefined' )
{ // Use GET method by default:
method = 'GET';
}

jQuery.ajax(
{
contentType: 'application/json; charset=utf-8',
type: method,
url: restapi_url + url,
data: params
} )
.then( function( data, textStatus, jqXHR )
{
if( typeof( jqXHR.responseJSON ) == 'object' )
{ // Call function only when we get correct JSON response:
eval( func )( data, textStatus, jqXHR );
}
} );
}


/**
 * Print an error of fail request
 *
 * @param string Object selector
 * @param object Error data: 'message', 'code', 'data.status'
 * @param boolean TRUE to print additional debug info
 */
function evo_rest_api_print_error( obj_selector, error, debug )
{
if( typeof( error ) != 'string' && typeof( error.code ) == 'undefined' )
{
error = typeof( error.responseJSON ) == 'undefined' ? error.statusText : error.responseJSON;
}

if( typeof( error.code ) == 'undefined' )
{ // Unknown non-json response:
var error_text = '<h4 class="text-danger">Unknown error: ' + error + '</h4>';
}
else
{ // JSON error data accepted:
var error_text ='<h4 class="text-danger">' + error.message + '</h4>';
if( debug )
{ // Display additional error info in debug mode only:
error_text += '<div><b>Code:</b> ' + error.code + '</div>'
+ '<div><b>Status:</b> ' + error.data.status + '</div>';
}
}

evo_rest_api_end_loading( obj_selector, error_text );
}


/**
 * Set style during loading new REST API content
 *
 * @param string Object selector
 */
function evo_rest_api_start_loading( obj_selector )
{
jQuery( obj_selector ).addClass( 'evo_rest_api_loading' )
.append( '<div class="evo_rest_api_loader">loading...</div>' );
}


/**
 * Remove style after loading new content
 *
 * @param string Object selector
 * @param string New content
 */
function evo_rest_api_end_loading( obj_selector, content )
{
jQuery( obj_selector ).removeClass( 'evo_rest_api_loading' )
.html( content )
.find( '.evo_rest_api_loader' ).remove();
}