const Sequelize = require('sequelize');
const Model = Sequelize.Model;
const express = require('express');
const server= express();
const bd = require('body-parser');
server.use(bd.json());

server.use(function (err, req, res, next) {
    console.error(err.stack);
    res.status(500).send(err.stack);
    
});

const personCtrl = {
    get_all(res) {
        Person.findAll().then(persons => {
            res.send(JSON.stringify(persons, null, 4));
        })
    },

    create(req, res, next) {
        if (req.query.firstname == undefined || req.query.lastname == undefined) {
            throw "Un des éléments est vide";
        }
        Person.create({lastname: req.query.firstname, firstname: req.query.lastname}).then(p => {
            res.send("ok");
        }) .catch(function (error) {
            next(error);
        })  
    },
    get_by_id(req, res, next) {
    Person.findByPk(req.params.person_id).then(persons => {
        if (!persons) {
            throw "Pas bonne id"
        }
        res.send(JSON.stringify(persons, null, 4))
    }) .catch(function (error) {
        next(error);
    })

    },
    update_by_id(req, res, next) {
        Person.findByPk(req.params.person_id).then(persons => {
            if (!persons) {
                throw "Pas bonne id";
            } else {
                Person.update(req.body, {
                    where: {
                        id: req.params.person_id
                    }
                }) .then(
                    res.send("ok")
                )
            }
        }) .catch(function (error) {
            next(error);
        })


    },
    delete_by_id(req, res, next) {
        Person.destroy({
            where: {
                id: req.params.person_id
            }
        }) .then(data => {
            if (!data) {
                throw "Pas bonne id"
            }
            res.send("fait")}) .catch(function (error) {
            next(error);
        })
    }
}

const pCtrl = Object.create(personCtrl);

const sequelize = new Sequelize('w4aclem', 'clement.krebs', 'n4or2bgm', {
    host: 'mysql.iutrs.unistra.fr',
    dialect: 'mysql'
});


class Person extends Model {}
Person.init({
    lastname: Sequelize.STRING,
    firstname: Sequelize.STRING
}, {sequelize, modelName: 'Person'});

/*sequelize.sync()
.then(() => Person.create({
    lastname: 'moi',
    firstname: 'toi'
}))
.then(moi => {
    console.log(moi.toJSON());
});*/

server.get('/person', function (req, res) {
    pCtrl.get_all(res);
});

server.post('/person', function (req, res, next) {
    pCtrl.create(req, res, next);
});

server.get('/person/:person_id', function (req, res, next) {
    pCtrl.get_by_id(req, res, next);
});

server.put('/person/:person_id', function (req, res, next) {
    pCtrl.update_by_id(req, res, next);
});

server.delete('/person/:person_id', function (req, res, next) {
    pCtrl.delete_by_id(req, res, next);
});





server.listen(8000, function () {
    console.log('ouais ouais ouais !!!');
});