let basicurl = "http://119.97.164.198:8080/";



const request = (
    params = {
        url: null,
        method: "get",
        data: null,
    }
) => {
    if (!params.url) {
        throw error("url is not allowed be null!");
    }
    if (promise) {
        return new promise((resolve, reject) => {
            const xml = new xmlhttprequest();
            let url = basicurl + params.url;
            let datastring = null;
            if (params.data) {
                datastring = object.keys(params.data)
                    .map((key) => `${key}=${json.stringify(params.data[key])}`)
                    .join("&");
                if (params.method.tolowercase() === "get") {
                    url = url + "?" + datastring;
                }
            }
            xml.open(params.method, url, true);
            xml.setrequestheader("content-type", "application/json");
            xml.send(json.stringify(params.data));
            xml.onload = () => {
                if (xml.status === 200) {
                    resolve(json.parse(xml.response));
                } else {
                    reject(json.parse(xml.response));
                }
            };
            xml.onerror = () => {
                reject("network connect is failed!");
            };
        });
    } else {
        var resultobj = {
            then: function(fun) {
                const xml = new xmlhttprequest();
                let url = basicurl + params.url;
                let datastring = null;
                if (params.data) {
                    datastring = object.keys(params.data)
                        .map((key) => `${key}=${json.stringify(params.data[key])}`)
                        .join("&");
                    if (params.method.tolowercase() === "get") {
                        url = url + "?" + datastring;
                    }
                }
                xml.open(params.method, url, true);
                xml.setrequestheader("content-type", "application/json");
                xml.send(json.stringify(params.data));
                xml.onload = () => {
                    if (xml.status === 200) {
                        fun(json.parse(xml.response));
                    } else {
                        throw error("abnormal state");
                    }
                };
                xml.onerror = () => {
                    throw error("network connect is failed!");
                };
            }
        }
        return resultobj;
    }

};






/* 搜索用 */
const search_request = (url, data, bool = true) => {
    if (!url) {
        throw error("url is not allowed be null!");
    }
    if (promise) {
        return new promise((resolve, reject) => {

            const xml = new xmlhttprequest();

            xml.open("post", url, true);

            xml.setrequestheader("content-type", "application/json");
            if (bool == true)
                xml.send(json.stringify({ title: data }));
            else xml.send(json.stringify({ keywords: data }));
            xml.onload = () => {
                if (xml.status === 200) {
                    resolve(json.parse(xml.response));
                } else {
                    reject(json.parse(xml.response));
                }
            };
            xml.onerror = () => {
                reject("network connect is failed!");
            };
        });
    } else {
        var resultobj = {
            then: function(fun) {
                const xml = new xmlhttprequest();

                xml.open("post", url, true);

                xml.setrequestheader("content-type", "application/json");
                if (bool == true)
                    xml.send(json.stringify({ title: data }));
                else xml.send(json.stringify({ keywords: data }));
                xml.onload = () => {
                    if (xml.status === 200) {
                        fun(json.parse(xml.response));
                    } else {
                        throw error("abnormal state");
                    }
                };
                xml.onerror = () => {
                    throw error("network connect is failed!");
                };
            }
        }

        return resultobj;

    }


};

/* 最新版搜索 */
/* 

  data 对象 参考接口文档
  {
    title: ""
  }


*/
const max_search_request = (
    argument = {
        url: null,
        data: {}
    }
) => {
    if (!argument.url) {
        throw error("url is not allowed be null!");
    }
    if (promise) {
        return new promise((resolve, reject) => {
            let url = basicurl + argument.url;
            const xml = new xmlhttprequest();

            xml.open("post", url, true);

            xml.setrequestheader("content-type", "application/json");
            xml.send(json.stringify(argument.data));
            xml.onload = () => {
                if (xml.status === 200) {
                    resolve(json.parse(xml.response));
                } else {
                    reject(json.parse(xml.response));
                }
            };
            xml.onerror = () => {
                reject("network connect is failed!");
            };
        });
    } else {
        var resultobj = {
            then: function(fun) {
                let url = basicurl + argument.url;
                const xml = new xmlhttprequest();

                xml.open("post", url, true);

                xml.setrequestheader("content-type", "application/json");
                xml.send(json.stringify(argument.data));
                xml.onload = () => {
                    if (xml.status === 200) {
                        fun(json.parse(xml.response));
                    } else {
                        throw error("abnormal state");
                    }
                };
                xml.onerror = () => {
                    throw error("network connect is failed!");
                };
            }
        }

        return resultobj;




    }



};