/**
 * Created by Tony on 2017/5/31.
 */
var mongoose = require('mongoose');
var dbm = require("../../../config/db/db_manager");
var db = dbm.getCfgConnection("Reports");
var async = require("async");
var rptTplDef = require("../../../public/rpt_tpl_def").getUtil();
var Schema = mongoose.Schema;
var TreeNodeSchema = new Schema({
    ID:Number,
    ParentID:Number,
    NextSiblingID:Number,
    grpType: Number, //建筑(const : 1)/公路(const 2)/其他 etc...
    nodeType: Number,//节点类型：树节点(枝) 或 模板节点(叶)
    tplType: Number, //概算、预算、招投标 etc...
    userId: String,   //用户自定义模板用
    refId: Number,   //
    name: String,
    isDeleted: Boolean
});

var TreeNodeModel = db.model("rpt_tpl_tree", TreeNodeSchema, "rpt_tpl_tree");
var counter = require('../../../public/counter/counter');

//var RplTplTreeDAO = function(){};
class RplTplTreeDAO{
    getTplTreeNodes(grpType, userId, tplType, callback) {
        var filter = {"grpType": grpType, "$or": [{"isDeleted": null}, {"isDeleted": false} ]};
        if (userId) {
            filter.userId = userId;
        }
        if ((tplType && tplType !== rptTplDef.TplType.ALL)) {
            filter.tplType = tplType;
        }
        TreeNodeModel.find(filter, '-_id', function(err, data){
            if (err) {
                callback(true, null);
            } else callback(false,data);
        });
    };
    updateTreeNodes(nodes, callback) {
        var functions = [];
        for (let node of nodes) {
            functions.push((function(doc) {
                return function(cb) {
                    TreeNodeModel.update({ID: doc.ID}, doc, cb);
                };
            })(node));
        }
        async.parallel(functions, function(err, results) {
            callback(err, results);
        });
    };
    removeNodes(nodeIds, preNodeId, preNodeNextId, callback) {
        var functions = [];
        if (preNodeId != -1) {
            functions.push((function(nodeId, nextId) {
                return function(cb) {
                    TreeNodeModel.update({ID: nodeId}, {"NextSiblingID": nextId}, cb);
                };
            })(preNodeId, preNodeNextId));
        }
        for (let nId of nodeIds) {
            functions.push((function(nodeId) {
                return function(cb) {
                    TreeNodeModel.update({ID: nodeId}, {"isDeleted": true}, cb);
                };
            })(nId));
        }
        async.parallel(functions, function(err, results) {
            callback(err, results);
        });
    };
    createTplTreeNode(nodeData, lastNodeId, callback) {
        counter.counterDAO.getIDAfterCount(counter.moduleName.report, 1, function(err, result){
            nodeData.ID = result.value.sequence_value;
            var node = new TreeNodeModel(nodeData);
            node.save(function (err, result) {
                if (err) {
                    callback("树节点错误！", false);
                } else {
                    if (lastNodeId > 0) {
                        TreeNodeModel.update({ID: lastNodeId}, {"NextSiblingID": nodeData.ID}, function(err, rst){
                            if (err) {
                                callback("树节点错误！", false);
                            } else {
                                callback(false, result);
                            }
                        });
                    } else callback(false, result);
                }
            });
        });
    };
}

module.exports = new RplTplTreeDAO();