// 统一处理业务逻辑
import code from '~/map/rcodeMap'
let rcodeHandleMap = {
};
function registerHandle(rcode,handle){
  rcodeHandleMap[rcode] = handle;
}

// 1. 获取当前url地址
// 2. 存储sessionStore
// 3. 自动前往登陆页
function toLogin(){
    let nowUrl = window.location.href;
    window.sessionStorage.setItem('lastUrl',nowUrl);
    window.location.href = '/login';
}


let defaultFns = {
    [code.notMatch]: {
        msg: code[code.notMatch].msg,
        ok:  code[code.notMatch].ok,
        type:  code[code.notMatch].type,
    },
    [code.ok]: {
        msg: code[code.ok].msg,
        ok:  code[code.ok].ok,
        type:  code[code.ok].type,
    },
    [code.notParam]: {
        msg: code[code.notParam].msg,
        ok:  code[code.notParam].ok,
        type:  code[code.notParam].type,
    },
    [code.notLogin]: {
        fn: toLogin,
        msg: code[code.notLogin].msg,
        ok:  code[code.notLogin].ok,
        type:  code[code.notLogin].type,
    },
    [code.serverError]: {
        // fn: toLogin,
        msg: code[code.serverError].msg,
        ok:  code[code.serverError].ok,
        type:  code[code.serverError].type,
    },
    [code.permissionDenied]: {
        msg: code[code.permissionDenied].msg,
        ok:  code[code.permissionDenied].ok,
        type:  code[code.permissionDenied].type,
    },
    [code.customError]: {
        msg: code[code.customError].msg,
        ok:  code[code.customError].ok,
        type:  code[code.customError].type,
    },
    [code.notFound]: {
        msg: code[code.notFound].msg,
        ok:  code[code.notFound].ok,
        type:  code[code.notFound].type,
    },
    [code.apiError]: {
        msg: code[code.apiError].msg,
        ok:  code[code.apiError].ok,
        type:  code[code.apiError].type,
    },
    [code.saveError]: {
        msg: code[code.saveError].msg,
        ok:  code[code.saveError].ok,
        type:  code[code.saveError].type,
    },
    [code.dataRepeat]: {
        msg: code[code.dataRepeat].msg,
        ok:  code[code.dataRepeat].ok,
        type:  code[code.dataRepeat].type,
    },
    [code.timeout]: {
        msg: '请求超时,'+code[code.dataRepeat].msg,
        ok:  code[code.dataRepeat].ok,
        type:  code[code.dataRepeat].type,
    },
}
/**
 * 检查api返回值对应含义,普通服务器接口
 * @param response axios 接口返回的请求值
 * @param err
 * @param fns {object} 对应的rcocd绑定对应的函数
 * @returns {{msg: string, ok: boolean, type: string ,res:object}}
 */
function checkResponseRcode(response,err,fns={}){

    // 默认值
    let keys = Object.keys(fns);
    let finalFns = {
        ...defaultFns
    }
    for(let field of keys){
        if(finalFns[field]){
            finalFns[field] = {
                ...finalFns[field],
                ...fns[field]
            }
        }
    }
    let res = {}
    if(err){return {ok: false, msg: err?err.message:defaultFns[0].msg,type: 'error',rcode : null};}
    let data = response.data;
    if(!data.rcode || !defaultFns[data.rcode]){
        res = defaultFns[0];
        return res;
    }
    // res = defaultFns[data.rcode]
    res.ok = finalFns[data.rcode].ok;
    res.msg = data.msg?data.msg:finalFns[data.rcode].msg;
    res.type = finalFns[data.rcode].type;
    res.rcode = data.rcode;
    res.res = data;
    // 执行相关操作函数
    if(finalFns[data.rcode].fn){
        finalFns[data.rcode].fn()
    }
    return res;
}
function checkErr(err){
    console.log(err);
}

export default {
    checkResponseRcode,
    checkErr,
    registerHandle,
    toLogin
}