var code,
    info,
    table_tp_id,
    last_index = 1; //当前的题目数 +1
var question_info;
mui.init();
mui.plusReady(function(){
    var self = plus.webview.currentWebview();
    code = self.code;
    table_tp_id = self.table_tp_id;
    info = self.info;
    sqlite.open('MyData','1.0','My Database', 1024*100);
    createTable("questions2");
    //添加标记记录说模板内容已经被修改了
    plus.storage.setItem("isEdit", "1");
    if(code){
        //判断是否数据库中已经存在了数据
        sqlite.executeSql("select * from questions2 WHERE template_id = "+table_tp_id,[],
            function(tx,rs){
                console.log(rs);
                if(rs.rows.length == 0){
                    if(self.question_info){
                        console.log(self.question_info);
                        fillQuestionData(self.question_info);
                    }else{
                        getQuestions();
                    }
                }else{
                    refresh();
                }
            },function(tx,rs){
                console.log(rs);
            });
        
    }else{
        refresh();
    }
    bindEvents();
});

function getQuestions(){
    var url = "/doctor/questionnaire/getTemplateDetail",
        params = {code: code};
    sendGet(url, params, null, function(res){
        if(res.status == 200){
            fillQuestionData(res.data.questions);
        }else{
            mui.toast(res.msg);
        }
    }, true);
}

function fillQuestionData(data){
    question_info = _.map(data,function(o,index){
        var options = _.map(o.options, function(op){
            op.nextQuestion = "";
            //判断是否存在选项的code，如果不存在则使用旧的code，如果不存在则新增
            var optCode = op.optCode || getUUID();
            op.optCode = optCode;
            return op;
        });
        o.options = options;
        o.optionArr = options;
        var code = o.qstCode || getUUID();
        o.code = code;
        o.index1 = index+1;
        o.nextQuestion = "";
        o.minOptions = o.minNum; 
        o.maxOptions = o.maxNum;
        o.jsonStr = JSON.stringify(o);
        return o;
    });
    var html = template("question_tmp", {list: question_info});
    $("#question_list").append(html);
    last_index = question_info.length + 1;
    insertIntoTable();
    $(".header-link").addClass("active");
}

function insertIntoTable(){
    //将数据保存到数据表中
    sqlite.db.transaction(function(tx){
        for(var i=0; i<question_info.length; i++){
            var time = (new Date()).getTime();
            tmp = question_info[i];
            tx.executeSql( 
                'INSERT INTO questions2'+
                ' (template_id, index1, code, title, comment, type, isRequired, options, updateTime, sort, minOptions, maxOptions, nextQuestion) '+
                ' VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?)',
                [
                    table_tp_id, i+1, tmp.code, tmp.title, tmp.comment||"", tmp.type, 
                    tmp.isRequired, JSON.stringify(tmp.options), time, i+1, tmp.minOptions|| tmp.minNum ||"", tmp.maxOptions|| tmp.maxNum || "", ""
                ],
                function(tx, rs){
                    console.log(rs)
                }, function(tx, rs){
                    console.log(rs)
                });
        }
    }, function(tx, rs){
        console.log(rs)
    });
}

function bindEvents(){
    $("#add_question").on("click", function(){
        mui('#sheet1').popover('toggle');
    });
    
    $(".header-link").on("click", function(){
        var active = $(this).hasClass("active");
        if(active){
            mui.openWindow({
                url:"preview.html",
                id:"preview1",
                extras: {
                    table_tp_id: table_tp_id,
                    code: code,
                    info: info,
                    question_info: question_info
                }
            });
        }
    });
    
    $("#sheet1").on("tap", "li", function(){
        var val = $(this).attr("data-val");
        if(val == "questions"){
            openWebview("questions_list.html", {tp_id: table_tp_id, q_num: last_index});
        }else if(val == "blankfill"){
            openWebview("blank_filling_question.html", {tp_id: table_tp_id, q_num: last_index});
        }else if(val == "radio" || val == "checkbox"){
            openWebview("multiple_choice_question.html", {tp_id: table_tp_id, type: val, q_num: last_index});
        }
        mui('#sheet1').popover('toggle');
    });
    
    $("#question_list").on("click", '.del-icon', function(e){
        e.stopPropagation();
        var $this = $(this);
        dialog({
            content: "确定要删除这个问题吗?",
            okValue: "确定",
            ok: function(){
                var $parent = $this.closest(".question"),
                    index = parseInt($parent.find(".index").text()), //页面中的排序
                    code = $parent.attr("data-code"), //数据库中的排序
                    $index_list = $(".index"),
                    index1 = $parent.attr("data-index"),
                    len = $index_list.length;
                for(i=index; i<len; i++){
                    var val = $($index_list[i]).text();
                    $($index_list[i]).text(parseInt(val)-1);
                }
                $parent.remove();
                var sql = "delete from questions2 where template_id = "+table_tp_id+" and code = '"+code+"'";
                console.log(sql);
                sqlite.executeSql(sql,[],function(tx,rs){
                    console.log("数据删除成功");
                    last_index = last_index - 1;
                    if(last_index == 1){
                        $(".header-link").removeClass("active");
                    }
                    question_info.splice(index-1, 1);
                    //将本题后的题目的index-1,sort-1.因为会影响新增的代码
                    var usql = "UPDATE questions2 SET index1=(index1-1), sort = (sort-1) WHERE template_id = "+table_tp_id+" AND index1 > "+index1;
                    sqlite.executeSql(usql,[],function(tx, rs){
                        console.log("update success after delete");
                        console.log(rs);
                    },function(tx, rs){
                        console.log("update failed after delete");
                        console.log(rs);
                    });
                }, function(tx, rs){
                    console.log(rs);
                });
            },
            cancelValue: "取消",
            cancel: function(){}
        }).showModal();
    });
    
    $("#question_list").on('click', '.question', function(){
        var $this = $(this),
            jsonData = $this.attr("data-json"),
            index1 = parseInt($this.find(".index").text());
        jsonData = JSON.parse(jsonData);
        if(jsonData.type == 2){
            openWebview("blank_filling_question.html", {
                tp_id: table_tp_id,
                jsonData: jsonData,
                q_index: index1,
                q_num: last_index-1
            });
        }else{
            openWebview("multiple_choice_question.html", {
                tp_id: table_tp_id,
                type: (jsonData.type == 0)? "radio" : "checkbox",
                jsonData: jsonData,
                q_index: index1,
                q_num: last_index-1
            });
        }
    });
    
    $("#pre_btn").on('click', function(){
        mui.back();
    });
    
    $("#next_btn").on('click', function(){
        if(question_info.length == 0){
            dialog({
                content: "最少需要一个问题，请添加问题",
                contentType: "tipsbox",
                skin: 'bk-popup',
                closeTime: 2000
            }).showModal();
        }else{
            openWebview("choose_respondent.html", {
                code: code, 
                pre_info: info,
                question_info: question_info
            });
        }
    });
    
    window.addEventListener("addQuestion", function(e){
        var info = e.detail.info;
        sqlite.executeSql( 
            'INSERT INTO questions2 '+
            ' (template_id, index1, code, title, isRequired, comment, type, options, sort, updateTime, minOptions, maxOptions) '+
            ' VALUES(?,?,?,?,?,?,?,?,?,?,?,?)',
            [
                parseInt(info.tp_id), info.index, getUUID(), info.title, info.isRequired, info.comment, info.type, info.options, 
                info.sort, info.updateTime, info.minOptions, info.maxOptions
            ],
            function(tx, rs){
                console.log(rs);
                refresh();
            }, function(tx, rs){
                console.log(rs)
            });
    });
    window.addEventListener("update", function(e){
        var info = e.detail.info,
            code = e.detail.code;
        console.log(info);
        //单双引号在sqlite中有区别，\无特殊含义，双引号代表着单引号的作用
        var sql = "UPDATE questions2 "+
            " SET title = \'"+info.title+"\', isRequired = "+info.isRequired+", type="+info.type+", comment= '"+info.comment+"', "+
            " updateTime="+info.updateTime+", sort = "+info.sort+", options = \'"+info.options+"\', minOptions='"+info.minOptions+"', maxOptions='"+info.maxOptions+"'"+
            " WHERE template_id = "+parseInt(info.tp_id)+" AND code = \'"+ code+"\'";
        console.log(sql);
        //如果index1< sort,则需要将之前的sort的数据往前挪
        var sql1 = "UPDATE questions2 SET sort="+(info.sort-1)+" WHERE template_id = "+parseInt(info.tp_id)+" AND sort = "+info.sort;
        console.log("sql1 = "+sql1);
        if(info.index < parseInt(info.sort)){
            sqlite.executeSql(sql1,[],
                function(tx, rs){
                    console.log("update1 success");
                    console.log(rs);
                    sqlite.executeSql(sql,[],
                        function(tx, rs){
                            console.log("update success");
                            console.log(rs);
                            refresh();
                        }, function(tx, rs){
                            console.log(rs)
                        });
                }, function(tx, rs){
                    console.log(rs)
                });
        }else{
            //题目往前移的情况，将这个sort后的序号加1
            var sql2 = "UPDATE questions2 SET sort=sort+1 WHERE template_id = "+parseInt(info.tp_id)+" AND sort >= "+info.sort;
            console.log("sql2 = "+sql2);
            sqlite.executeSql(sql2,[],
                function(tx, rs){
                    console.log("update2 success");
                    console.log(rs);
                    sqlite.executeSql(sql,[],
                        function(tx, rs){
                            console.log("update success");
                            console.log(rs);
                            refresh();
                        }, function(tx, rs){
                            console.log(rs)
                        });
                }, function(tx, rs){
                    console.log(rs)
                });
        }
    });
    
    window.addEventListener("multiInsert", function(e){
        var list = e.detail.list;
        console.log(list);
        var time = (new Date()).getTime();
        sqlite.db.transaction(function(tx){
            var sql = 'INSERT INTO questions2 '+
                ' (template_id, index1, code, title, isRequired, comment, type, options, sort, updateTime, minOptions, maxOptions) '+
                ' VALUES(?,?,?,?,?,?,?,?,?,?,?,?)';
            for(var i=0; i<list.length; i++){
                var item = list[i];
                tx.executeSql( sql, 
                [
                    table_tp_id, last_index+i, getUUID(), item.title, item.isRequired, item.comment||"", item.questionType,
                    item.options?JSON.stringify(item.options):"",last_index+i, time, item.minOptions||"", item.maxOptions||""
                ] ,
                function(tx, rs){
                    console.log(rs);
                    refresh();
                }, function(tx, rs){
                    console.log(rs);
                });
            }
        });
    });
}

template.helper("setType", function(str){
    if(str == 0){
        return "单选";
    }
    if(str == 1){
        return "多选";
    }
    if(str == 2){
        return "填空";
    }
    
    return "";
});

function refresh(){
    //获取数据表的数据，然后重新渲染页面内容
    sqlite.executeSql("SELECT * FROM questions2 WHERE "+
        "template_id = "+table_tp_id+" ORDER BY sort ASC, updateTime DESC",[],
        function(tx, rs){
            console.log(rs);
            var data = [];
            console.log(rs.rows);
            for(var i=0; i<rs.rows.length; i++){
                var obj = rs.rows.item(i);
                console.log(obj);
                var options = obj.options?JSON.parse(obj.options):[];
                obj.optionArr = options;
                obj.jsonStr = JSON.stringify(obj);
                data.push( obj );
            }
            question_info = data;
            var html = template("question_tmp", {list: data});
            $("#question_list").empty().append(html);
            last_index = data.length + 1;
            if(data.length > 0){
                $(".header-link").addClass("active");
            }
        }, 
        function(tx, rs){
            console.error("获取数据失败");
        })
}

function createTable(tableName){
    sqlite.executeSql("create table if not exists "+ tableName +
        " (id INTEGER PRIMARY KEY AUTOINCREMENT, index1 INTEGER, code text, template_id INTEGER, comment TEXT, title TEXT,"+
        " type INTEGER, isRequired INTEGER, options TEXT, updateTime TEXT, sort INTEGER, minOptions TEXT, maxOptions TEXT, nextQuestion TEXT )", [],
        function(tx, rs){
            console.log(tableName+"创建存储空间成功");
        }, 
        function(tx, rs){
            console.error(tableName);
            console.error(rs)
            alert("创建缓存空间失败！");
        });
}
function getUUID(){//生成全局唯一标识符
    var d = new Date().getTime();
    var uuid = 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = (d + Math.random()*16)%16 | 0;
        d = Math.floor(d/16);
        return (c=='x' ? r : (r&0x3|0x8)).toString(16);
    });
    return uuid;
}