const { now } = require('mongoose');
var MdataModel = require('../models/mdataModel.js');

/**
 * mdataController.js
 *
 * @description :: Server-side logic for managing mdatas.
 */
module.exports = {

    /**
     * mdataController.list()
     */
    list: function (req, res) {
        MdataModel.find({answering_id: null})
            .sort({timestamp: -1})
            .exec( function (err, mdatas) 
            {
                if (err) {
                    return res.status(500).json({
                        message: 'Error when getting mdata.',
                        error: err
                    });
                }
                
                var data =[];
                data.mdatas = mdatas;
                return res.render('mdata/list', data);
            });
    },

    /**
     * mdataController.show()
     */
    show: function (req, res) {
        var id = req.params.id;

        MdataModel.findOne({_id: id}, function (err, mdata) {
            if (err) {
                return res.status(500).json({
                    message: 'Error when getting mdata.',
                    error: err
                });
            }

            if (!mdata) {
                return res.status(404).json({
                    message: 'No such mdata'
                });
            }

            MdataModel.findOne({_id: mdata.answer}, function (err, currectAns) {

                if (err) {
                    return res.status(500).json({
                        message: 'Error when getting mdata.',
                        error: err
                    });
                }

                mdata.cur = currectAns;

                MdataModel.find({answering_id: id, _id:{$ne: mdata.answer }})
                    .sort({timestamp:-1})
                    .exec( function (err, answers) {
                    if (err) {
                        return res.status(500).json({
                            message: 'Error when getting mdata.',
                            error: err
                        });
                    }
                    
                    mdata.answers = answers;
                    mdata.selectAns = (mdata.user_id == req.session.userId)
                    return res.render('mdata/show', mdata);
                });
            });

            
          
        });
    },

    listmy: function (req, res) {
        MdataModel.find( {user_id : req.session.userId }, function (err, mdatas) {
            if (err) {
                return res.status(500).json({
                    message: 'Error when getting mdata.',
                    error: err
                });
            }
            
            var data =[];
            data.mdatas = mdatas;
            return res.render('mdata/my', data);
        });
    },

    /**
     * mdataController.create()
     */
    create: function (req, res) {
        var mdata = new MdataModel({
			user_id : req.session.userId,
			title : req.body.title,
			question : req.body.question,
            timestamp : Date.now(),
            answering_id : req.body.answering_id
        });

        mdata.save(function (err, mdata) {
            if (err) {
                return res.status(500).json({
                    message: 'Error when creating mdata',
                    error: err
                });
            }
            return res.redirect('/mdata');
            //return res.status(201).json(mdata);
        });
    },

    /**
     * mdataController.update()
     */
    update: function (req, res) {
        var id = req.params.id;
        var ans = req.params.ans;

        MdataModel.findOne({_id: id}, function (err, mdata) {
            if (err) {
                return res.status(500).json({
                    message: 'Error when getting mdata',
                    error: err
                });
            }

            if (!mdata) {
                return res.status(404).json({
                    message: 'No such mdata'
                });
            }

            mdata.user_id = req.body.user_id ? req.body.user_id : mdata.user_id;
			mdata.title = req.body.title ? req.body.title : mdata.title;
			mdata.question = req.body.question ? req.body.question : mdata.question;
			mdata.timestamp = req.body.timestamp ? req.body.timestamp : mdata.timestamp;
			mdata.tags = req.body.tags ? req.body.tags : mdata.tags;
			mdata.answering_id = req.body.answering_id ? req.body.answering_id : mdata.answering_id;
			mdata.answer = ans ? ans : mdata.answer;
			
            mdata.save(function (err, mdata) {
                if (err) {
                    return res.status(500).json({
                        message: 'Error when updating mdata.',
                        error: err
                    });
                }

                return res.redirect('/mdata');
            });
        });
    },

    /**
     * mdataController.remove()
     */
    remove: function (req, res) {
        var id = req.params.id;

        MdataModel.findByIdAndRemove(id, function (err, mdata) {
            if (err) {
                return res.status(500).json({
                    message: 'Error when deleting the mdata.',
                    error: err
                });
            }

            return res.redirect('/mdata/my');
        });
    },

    publish: function(req, res){
        return res.render('mdata/publish');
    }
};