async function ajax(method, url, body, noJSON, skipDataSerialize, tokenOverride, formData) {
    let data = body
    //check if has File object in body
    let hasFiles = false
    for (let key in data) {
        if (data[key]?.value instanceof File) 
            hasFiles = true
    }
    if (!skipDataSerialize) {
        data = body ? JSON.stringify(body) : null
    }
    //let tokenExpired = false
    let ctype = noJSON ? 
        (skipDataSerialize ? 'text/plain' : null) : 
        "application/json; charset=utf-8"

    let params = {
        type: method,
        url: url,
        headers: { 
            "Authorization": 'Bearer ' + (tokenOverride || getToken()),
        },
        data,
        contentType: ctype,
        dataType: noJSON ? null : 'json',
    } 
    if (formData || hasFiles) {
        let fd = new FormData()
        let files = {}
        for (let key in body) {
            if (body[key]?.value instanceof File) {
                files[key] = body[key].value
                //delete body[key]
            }
        }
        fd.append('data', JSON.stringify(body))
        for (let key in files) {
            fd.append(key, files[key])
        }
        params.data = fd
        params.processData = false
        params.contentType = false
        params.cache = false
        params.enctype = 'multipart/form-data'
        params.xhr = function () {
            var xhr = new window.XMLHttpRequest()
            xhr.upload.addEventListener("progress", function(evt) {
                if (evt.lengthComputable) {
                    var percentComplete = (evt.loaded / evt.total) * 100
                    loaderSetPercentage(percentComplete)
                }
            }, false)
            return xhr
        }
        loaderShow("Uploading files...", true, true)
    }
    try {
        return await $.ajax(params)
    } catch (ex) {
        console.log("ajax error", ex)
        if (ex.status == 401 && ex.responseJSON?.error == "E_TENANT_MISSMATCH") {
            logout()
        } else if (ex.status == 401 && ex.responseJSON?.error == "E_TOKEN_EXPIRED") {
            //retry one time
            let success =  await refreshToken(getRefreshToken())
            if (!success) {
                location.href = ''
                return 
            }
            params.headers.Authorization = getToken()
            return await $.ajax(params)
        } else {
            throw ex
        }
    } finally {
        loaderHide();
    }
}
async function post(url, body, tokenOverride, noJSON, skipDataSerialize) {
    return ajax("POST", url, body, noJSON, skipDataSerialize, tokenOverride)
}
async function tkpost(url, body, noJSON, skipDataSerialize) {
    return ajax("POST", url, body, noJSON, skipDataSerialize)
}
/*async function tkpostfile(url, file) {
    return ajax("POST", url, file, true, true, null, true);
}*/
async function tkput(url, body, noJSON, skipDataSerialize) {
    return ajax("PUT", url, body, noJSON, skipDataSerialize)
}
async function tkget(url, query, noJSON) {
    return ajax("GET", url, query, noJSON, true)
}
async function tkhead(url, query, noJSON) {
    return ajax("HEAD", url, query, noJSON, true)
}
async function tkdelete(url, query, noJSON) {
    return ajax("DELETE", url, query || {}, noJSON, false)
}
$.ajaxSetup({
    error: async function (xhr, status, err) {
        if (xhr.status == 401) {
            if (xhr.responseJSON.error == "token-expired") {
                /*
                if(tokenExpiredCounter[this.url] > 2){
                    clearForLogout();
                }
                if(!tokenExpiredCounter[this.url]) {
                    tokenExpiredCounter[this.url] = 1;
                }else{
                    tokenExpiredCounter[this.url]++;
                }
                let success =  await refreshToken(getRefreshToken());
                if (!success){
                    clearForLogout();
                }
                this.headers.Authorization = getToken();
                $.ajax(this);
                */
                return;
            }
            clearForLogout()
        }
    }
})