taro/src/services/http/request.ts

import { logoutSuccess } from "@/store/user";
import ToastUtil from "@/utils/toast_utils";
import Taro from "@tarojs/taro";
import { useDispatch } from "react-redux";


interface RequestParam {
    url: string;
    method: 'POST' | 'GET' | 'DELETE' | 'PUT';
    data?: Record<string, any>;
    showAlert?: boolean;
}

interface Resp {
    statusCode?: number;
    header?: any;
    data?: any;
    errMsg?: string;
};

async function getStorage(key: string) {
    try {
        const res = await Taro.getStorage({ key });
        return res.data;
    } catch {
        return '';
    }
}

//X-Language:语言，X-Device-Id:设备唯一码，X-Platform:小程序/android/ios,X-Location:地区，X-Device:登录设备
// header['X-Language'] = ''
// header['X-Device-Id'] = ''
// header['X-Platform'] = ''
// header['X-Location'] = ''
// header['X-Device'] = ''
// header['X-Time-Zone-Id'] = Intl.DateTimeFormat().resolvedOptions().timeZone
// header['Authorization'] = 'Bearer ' + wx.getStorageSync('token');
// header['Authorization'] = 'Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiJhY2NvdW50Iiwic3ViIjoiMmQ5OWNlYzI0ZDFlMzE0Y2U1MjhlODM4MWMzYzk0MzgiLCJpc3MiOiJDT0RFUEFBUy5DT00iLCJuaWNrbmFtZSI6IueOi-a4nSIsInR5cCI6IkJlYXJlciIsInNlc3Npb25fc3RhdGUiOiIyN2RjNmU4ZDdjMWU1MTVmNDQwNzVjZTFlODk2ZmUzNCIsImV4cCI6MTcxNjY0Mzk5MSwiaWF0IjoxNjg1MDIxNTkxfQ.fmFj0OVNRzjLkdebSyGJyk8EScPJFpDiz0L25W35zoA'



export async function request<T>(param: RequestParam): Promise<T> {
    const kTimeout = 8000;
    const kRetryCount = 2;

    let retryCount = 0;



    function performRequest(resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) {
        const { url, method, data } = param;
        var requestTask: any = null;
        let header: any = {};

        const token = global.token ? global.token : ''; //await getStorage('token')

        var split = new Date().toString().split(' ');
        var timeZoneFormatted = split[split.length - 2];

        header['content-type'] = 'application/json'
        header['X-Time-Zone'] = timeZoneFormatted; //new Date().getTimezoneOffset() / 60
        header['X-Platform'] = Taro.getSystemInfoSync().platform=='ios'?'IOS':'ANDROID'; //IOS ANDROID
        header['X-Lang'] = process.env.TARO_ENV=='rn'?'en':'zh' //zh en
        header['X-Client-Type'] = 'WX_APP' //WX_APP APP
        header['X-Client_Version'] = '1.0'
        if (token.length > 0) {
            header['Authorization'] = `Bearer ${token}`;
        }


        const timer = setTimeout(() => {
            requestTask && requestTask.abort();
            console.log('timeout');
            if (retryCount < kRetryCount) {
                // Retry the request
                console.log(`Retrying request (${retryCount + 1}/2)...`);
                retryCount++;
                performRequest(resolve, reject);
                return;
            }
            if (global.language=='en'){
                ToastUtil.getInstance().showToast(method == 'GET' ? 
                'Network connection failed. Please check your network.' : 
                'Posting failed. Please check your network.');
            }
            else {
                ToastUtil.getInstance().showToast(method == 'GET' ? '网络连接失败，请检查网络' : '操作失败，请检查网络');
            }
            
            reject('timeout');
        }, kTimeout);

        requestTask = Taro.request({
            url: url,
            method: method,
            header: header,
            // timeout: kTimeout,
            data: data || {},
            success: (response: Resp | { [key: string]: any }) => {
                clearTimeout(timer);
                const { statusCode, data } = response;

                if (statusCode != 200) {
                    console.log(response)
                }

                if (statusCode >= 200 && statusCode < 300) {
                    //正常数据返回
                    var resp = {} as T;
                    if (response.data) {
                        resp = response.data as T;
                    }
                    resolve(resp);

                } else if (statusCode == 401) {
                    // global.postBtnUpdateStatus('idle')
                    //未登录或挤下线处理
                    if (process.env.TARO_ENV=='weapp'){
                        Taro.stopPullDownRefresh()
                    }
                    else if (process.env.TARO_ENV=='rn'){
                        if (url.indexOf('login/password')!=-1){
                            reject(data);
                            return;
                        }
                    }
                    global.dispatch(logoutSuccess());
                } else if (statusCode == 500 && response.data.error_code == 'WX_STEP_PARSE_FAIL') {
                    //单独对计步第一次请求失败处理
                    resolve(response.data);
                } else {
                    //通用错误处理
                    Taro.showToast({
                        icon: 'none',
                        title: data.error_message,
                    });
                    reject(data);
                }
            },
            fail: err => {
                if ((err as any).statusCode >= 200 && (err as any).statusCode < 300){
                    clearTimeout(timer);
                    resolve()
                    return;
                }
                // global.postBtnUpdateStatus('idle')
                // console.log('oppsu');
                // clearTimeout(timer);
                // reject(err);
            },
        });



    }
    return new Promise<T>((resolve, reject) => {
        performRequest(resolve, reject);
    });
}