var dataLists = (function(){
    let arr = [];
    for(let i=0;i<1000;i++){
        arr.push({
            id:(i+1),
            code:"PU"+(2019081900000001+Number(i))+"",
            status:(i%5)===0?"已审核":"在录入",
            date:"2019-08-19",
            vendor:(i%2)===0?"广东省深圳市南山区供应商A001":"广东省广州市天河区供应商B002",
            price:(Math.random()*(3000-1000)+10).toFixed(2),
            currency:"RMB",
            recordman:"小明",
            auditman:"大明",
            special:(i%2)===0?true:false,
        })
    }
    return arr;
})();

module.exports = function(request, response){
    var query = request.query;
    var page = Number(query.page) || 1;
    var start = Number(query.start) || 0;
    var limit = Number(query.limit) || 0;
    var result = {
        total:Number.MAX_SAFE_INTEGER
    };

    if(page===Number.MAX_SAFE_INTEGER){
        result.total = dataLists.length
        page = dataLists.length/limit;
        page = page>parseInt(page)?page+1:page;
        start = (page-1)*limit;
    }else{
        if(start<=dataLists.length&&(start+limit)>=dataLists.length){
            result.total = dataLists.length
        }
    }

    if(limit > 0) {
        result.list = dataLists.slice(start, start + limit);
    }else {
        result.list = dataLists;
    }

    return result;
}