var d = dialog({contentType:'load', skin:'bk-popup'});
var survey_id,
    q_info,
    indexArr = [],
    answerInfo = [],
    allAnswer = {},
    pre_info;
$(function(){
    survey_id = localStorage.getItem("survey_id");
    getQuestionInfo(1);
    bindEvents();
});

function getQuestionInfo(sort){
    d.show();
    var url = "/patient/questionnaire/getQuestions",
        params = {
            id: survey_id,
            sort: sort
        };
    sendPost(url, params, 'JSON', 'GET', errorHandler, successHandler);
}

function errorHandler(res){
    d.close();
    if(res.msg){
        dialog({contentType:'tipsbox', skin:'bk-popup' , content:res.msg,bottom:true}).show(); 
    }else{
        dialog({contentType:'tipsbox', skin:'bk-popup' , content:'数据加载失败！',bottom:true}).show(); 
    }
}

function successHandler(res){
    if(res.status == 200){
        d.close();
        var data = res.data;
        q_info = res.data;
        //计算进度比例 = 已完成题/(未完成题+已完成题)
        var noAns = parseInt(data.totalNum) - parseInt(data.sort)+1,
            ans = answerInfo.length,
            percent = parseInt((ans/(ans + noAns)).toFixed(2)*100);
        indexArr.push(data.sort);
        if(data.sort == 1){
            //如果只有一题的话，直接显示提交按钮
            if(data.totalNum == 1){
                $(".group1").hide();
                $(".group2").hide();
                $(".group3").hide();
                $(".group4").show();
            }else{
                $(".group1").show();
                $(".group2").hide();
                $(".group3").hide();
                $(".group4").hide();
            }
        }
        else if(data.sort > 1 && data.sort!=data.totalNum){
            $(".group1").hide();
            $(".group2").show();
            $(".group3").hide();
            $(".group4").hide();
        }else{
            $(".group1").hide();
            $(".group2").hide();
            $(".group3").show();
            $(".group4").hide();
        }
        
        $(".percent").text(percent+"%");
        $(".progress").css("width", percent+"%");
        if(data.type !=2){
            for(i=0; i<data.options.length; i++){
                var op = data.options[i];
                if(pre_info){
                    if(pre_info.options){
                        for(j=0; j<pre_info.options.length; j++){
                            var p_op = pre_info.options[j];
                            if(op.code == p_op.optionCode){
                                data.options[i].checked = "checked";
                                data.options[i].comment = p_op.comment;
                            }
                        }
                    }
                }else{
                    if(allAnswer[q_info.sort]){
                        var info = allAnswer[q_info.sort];
                        if(info.options){
                            for(j=0; j<info.options.length; j++){
                                var p_op = info.options[j];
                                if(op.code == p_op.optionCode){
                                    data.options[i].checked = "checked";
                                    data.options[i].comment = p_op.comment;
                                }
                            }
                        }
                    }
                }
                
                data.options[i].jsonStr = JSON.stringify(data.options[i]);
            }
        }else{
            if(pre_info){
                data.answer = pre_info.content;
            }else{
                if(allAnswer[q_info.sort]){
                    data.answer = allAnswer[q_info.sort].content;
                }
            }
        }
        var html = template("info_tmp", {data: data, pre_info: pre_info});
        $("#info").empty().append(html);
    }else{
        errorHandler(res);
    }
}

template.helper("setType", function(str){
    if(str == "0"){
        return "radio";
    }
    if(str == "1"){
        return "checkbox";
    }
    return "text";
});

function validate(){
    //查看选中选项
    var $checked = $(".icon-checkbox:checked"),
        len = $checked.length,
        text = $(".form-textarea").val();
    var obj = {},
        nextCode = "";
        
    if(q_info.nextQuestion >= 0){
        nextCode = q_info.nextQuestion;
    }
    //必填情况判断
    if(q_info.isRequired){
        if(q_info.type !=2){
            if(len == 0){
                dialog({
                    contentType:'tipsbox', 
                    skin:'bk-popup' , 
                    content:'此题为必答题，请按要求作答'
                }).show();
                return false;
            }
        }else{
            if($.trim(text).length == 0){
                dialog({
                    contentType:'tipsbox', 
                    skin:'bk-popup' , 
                    content:'此题为必答题，请按要求作答'
                }).show();
                return false;
            }
        }
    }
    if(len > 0){
        if(q_info.type == "1"){
            //多选题
            if(q_info.minNum && len < q_info.minNum){
                dialog({
                    contentType:'tipsbox', 
                    skin:'bk-popup' , 
                    content:'此题要求最少选择'+q_info.minNum+"项，请按要求作答"
                }).show();
                return false;
            }else if(q_info.maxNum && len > q_info.maxNum){
                dialog({
                    contentType:'tipsbox', 
                    skin:'bk-popup' , 
                    content:'此题要求最多选择'+q_info.maxNum+"项，请按要求作答"
                }).show();
                return false;
            }
        }
        obj.qstCode = q_info.qstCode;
        obj.sort = q_info.sort;
        obj.type = q_info.type;
        obj.options = [];
        for(i=0; i<len; i++){
            var $item = $($checked[i]),
                $li = $item.parent(),
                jsonData = $li.attr("data-json");
            jsonData = JSON.parse(jsonData);
            var op = {};
            op.optionCode = jsonData.code;
            op.sort = jsonData.sort;
            if(jsonData.havaComment == 1){
                var $text = $li.find("input[type=text]");
                if(jsonData.isRequired && ($.trim($text.val()).length == 0)){
                    dialog({
                        contentType:'tipsbox', 
                        skin:'bk-popup' , 
                        content:'请按要求作答'
                    }).show();
                    return false;
                }else{
                    op.comment = $.trim($text.val());
                }
            }
            obj.options.push(op);
            if(jsonData.nextQuestion >= 0){
                nextCode = jsonData.nextQuestion
            }
        }
    }else{
        //文本框内容
        nextCode = q_info.nextCode || (q_info.sort+1);
        obj.qstCode = q_info.qstCode;
        obj.sort = q_info.sort;
        obj.type = q_info.type;
        obj.content = $.trim(text);
    }
    //将答题信息保存到storage中
    answerInfo.push(obj);
    allAnswer[q_info.sort] = obj;
    pre_info = undefined;
    //发送请求获取下一题的内容
    if(isNaN(parseInt(nextCode))){
        nextCode = q_info.sort+1
    }
    return nextCode;
    //hard code 下一题的值
//  return (q_info.sort +1);
}

function bindEvents(){
    $(".next_btn").on("click", function(){
        var nextCode = validate();
        if(nextCode){
            getQuestionInfo(nextCode);
        }
        if(parseInt(nextCode) == 0){
            submitAnswer();
        }
    });
    
    $(".pre_btn").on("click", function(){
        //获取上一题的内容
        pre_info = answerInfo[answerInfo.length-1]; 
        answerInfo.pop();
        getQuestionInfo(pre_info.sort);
    });
    
    $(".submit_btn").on("click", function(){
        var result = validate();
        if(result){
            submitAnswer();
        }
    });
}

function submitAnswer(){
    dialog({
        content: "是否确认提交问卷？",
        okValue: "立即提交",
        ok: function(){
            d.show();
            var url = "/patient/questionnaire/saveAnswer",
                params = {
                    surveyCode: survey_id,
                    questions: answerInfo
                };
            sendPost(url, {jsonData: JSON.stringify(params)}, 'JSON', 'POST', function(res){
                d.close();
                if(res.msg){
                    dialog({contentType:'tipsbox', skin:'bk-popup' , content:res.msg,bottom:true}).show(); 
                }else{
                    dialog({contentType:'tipsbox', skin:'bk-popup' , content:'数据提交失败！',bottom:true}).show(); 
                }
            }, function(res){
                if(res.status == 200){
                    dialog({contentType:'tipsbox', skin:'bk-popup' , content: "已提交成功，感谢您的参与",bottom:true}).show();
                    wx.closeWindow();
                }else{
                    dialog({contentType:'tipsbox', skin:'bk-popup' , content:res.msg,bottom:true}).show(); 
                }
            });
        },
        cancelValue: "我再看看",
        cancel: function(){
            answerInfo.pop();
        }
    }).showModal();
}