'use strict';

const itype = require('itype/legacy');

/* global CloudFunc, CloudCmd */

module.exports = new RESTful();

const {Images} = require('./dom');
const load = require('./load');
const Dialog = require('./dialog');

function RESTful() {
    this.delete = (url, data, callback) => {
        const isFunc = itype.function(data);
        
        if (!callback && isFunc) {
            callback = data;
            data = null;
        }
        
        sendRequest({
            method      : 'DELETE',
            url         : CloudFunc.FS + url,
            data,
            callback,
            imgPosition : { top: !!data }
        });
    };
    
    this.patch  = function(url, data, callback) {
        var isFunc = itype.function(data);
        
        if (!callback && isFunc) {
            callback = data;
            data = null;
        }
        
        sendRequest({
            method      : 'PATCH',
            url         : CloudFunc.FS + url,
            data        : data,
            callback    : callback,
            imgPosition : { top: true }
        });
    };
    
    this.write   = function(url, data, callback) {
        var isFunc      = itype.function(data);
        
        if (!callback && isFunc) {
            callback    = data;
            data        = null;
        }
        
        sendRequest({
            method      : 'PUT',
            url         : CloudFunc.FS + url,
            data        : data,
            callback    : callback,
            imgPosition : { top: true }
        });
    };
    
    this.read = function(url, dataType, callback) {
        var isQuery = /\?/.test(url);
        var isBeautify = /\?beautify$/.test(url);
        var isMinify = /\?minify$/.test(url);
        var notLog = !isQuery || isBeautify || isMinify;
        var isFunc = itype.function(dataType);
        
        if (!callback && isFunc) {
            callback = dataType;
            dataType = 'text';
        }
        
        sendRequest({
            method: 'GET',
            url: CloudFunc.FS + url,
            callback: callback,
            notLog: notLog,
            dataType: dataType
        });
    };
    
    this.cp = function(data, callback) {
        sendRequest({
            method      : 'PUT',
            url         : '/cp',
            data        : data,
            callback    : callback,
            imgPosition : { top: true }
        });
    };
    
    this.pack   = function(data, callback) {
        sendRequest({
            method      : 'PUT',
            url         : '/pack',
            data        : data,
            callback    : callback
        });
    };
    
    this.extract = function(data, callback) {
        sendRequest({
            method      : 'PUT',
            url         : '/extract',
            data        : data,
            callback    : callback
        });
    };
    
    this.mv = function(data, callback) {
        sendRequest({
            method      : 'PUT',
            url         : '/mv',
            data        : data,
            callback    : callback,
            imgPosition : { top: true }
        });
    };
    
    this.Config = {
        read:   function(callback) {
            sendRequest({
                method      : 'GET',
                url         : '/config',
                callback    : callback,
                imgPosition : { top: true },
                notLog      : true
            });
        },
        
        write:  function(data, callback) {
            sendRequest({
                method      : 'PATCH',
                url         : '/config',
                data        : data,
                callback    : callback,
                imgPosition : { top: true }
            });
        }
    };
    
    this.Markdown   = {
        read    : function(url, callback) {
            sendRequest({
                method      : 'GET',
                url         : '/markdown' + url,
                callback    : callback,
                imgPosition : { top: true },
                notLog      : true
            });
        },
        
        render  : function(data, callback) {
            sendRequest({
                method      : 'PUT',
                url         : '/markdown',
                data        : data,
                callback    : callback,
                imgPosition : { top: true },
                notLog      : true
            });
        }
    };
    
    function sendRequest(params) {
        var p           = params,
            prefixUrl   = CloudCmd.PREFIX_URL;
        
        p.url   = prefixUrl + p.url;
        p.url   = encodeURI(p.url);
        
        /*
         * if we send ajax request -
         * no need in hash so we escape #
         */
        p.url   = p.url.replace('#', '%23');
        
        load.ajax({
            method      : p.method,
            url         : p.url,
            data        : p.data,
            dataType    : p.dataType,
            error       : function(jqXHR) {
                var response       = jqXHR.responseText,
                    statusText     = jqXHR.statusText,
                    status         = jqXHR.status,
                    text           = status === 404 ? response : statusText;
                
                Images.show.error(text);
                setTimeout(function() {
                    Dialog.alert(CloudCmd.TITLE, text);
                }, 100);
                
                p.callback(Error(text));
            },
            success     : function(data) {
                Images.hide();
                
                if (!p.notLog)
                    CloudCmd.log(data);
                
                p.callback(null, data);
            }
        });
    }
}