/**
 * Created by Tony on 2017/6/1.
 */

let async = require("async");
let counter = require('../../../public/counter/counter');

//let TplNode = require('../models/tpl_tree_node');
let TreeNodeModel = require('../models/tpl_tree_node');
let rptTplDef = require("../../../public/rpt_tpl_def").getUtil();

//统一回调函数
let callback = function(req, res, err, message, data){
    res.json({error: err, message: message, data: data});
}

module.exports = {
    getRptTplTree: function(req, res) {
        let params = JSON.parse(req.body.params),
            grpType = params.grpType,
            userId = params.userId,
            tplType = params.tplType;
        let 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(req,res, true,"", null);
            } else callback(req,res,false,"", data);
        });
    },
    updateTreeNodes: function(req, res) {
        let params = JSON.parse(req.body.params),
            nodes = params.nodes;
        let 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(req,res, err, "", results);
        });
    },
    deleteTptTplNodes: function(req, res){
        let params = JSON.parse(req.body.params),
            nodeIds = params.nodeIds,
            preNodeId = params.preNodeId,
            preNodeNextId = params.preNodeNextId;
        let 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(req,res, err, "", results);
        });
    },
    createTplTreeNode: function(req, res){
        let params = JSON.parse(req.body.params),
            lastNodeId = params.lastNodeId,
            nodeData = params.rawNodeData;
        counter.counterDAO.getIDAfterCount(counter.moduleName.report, 1, function(err, result){
            nodeData.ID = result.value.sequence_value;
            let node = new TreeNodeModel(nodeData);
            node.save(function (err, result) {
                if (err) {
                    callback(req,res, "树节点错误！", "", null);
                } else {
                    if (lastNodeId > 0) {
                        TreeNodeModel.update({ID: lastNodeId}, {"NextSiblingID": nodeData.ID}, function(err, rst){
                            if (err) {
                                callback(req,res, "树节点错误！", "", null);
                            } else {
                                callback(req,res, false, "", result);
                            }
                        });
                    } else callback(req,res, false, "", result);
                }
            });
        });
    }
}