const Pi = require('../models/pi.model.js');

// Create and Save a new admin
exports.create = (req, res) => {
    // Validate request
    if (!req.body.nom) {
        return res.status(400).send({
            message: "PI content can not be empty"
        });
    }

    // Create a admin
    const pi = new Pi({
        nom: req.body.nom || "Untitled PI",
        email: req.body.email,
        telephone: req.body.telephone,
        premierResponsable: req.body.premierResponsable,
        adresse: req.body.adresse,
    });

    // Save admin in the database
    pi.save()
        .then(data => {
            res.send(data);
        }).catch(err => {
            res.status(500).send({
                message: err.message || "Some error occurred while creating the PI."
            });
        });
};

// Retrieve and return all admin from the database.
exports.findAll = (req, res) => {
    Pi.find()
        .then(pis => {
            res.send(pis);
        }).catch(err => {
            res.status(500).send({
                message: err.message || "Some error occurred while retrieving PIs."
            });
        });
};

// Find a single admin with a adminId
exports.findOne = (req, res) => {
    Pi.findById(req.params.piId)
        .then(pi => {
            if (!pi) {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            res.send(pi);
        }).catch(err => {
            if (err.kind === 'ObjectId') {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            return res.status(500).send({
                message: "Error retrieving PI with id " + req.params.piId
            });
        });
};

// Update a admin identified by the adminId in the request
exports.update = (req, res) => {
    // Validate Request
    if (!req.body.nom) {
        return res.status(400).send({
            message: "PI content can not be empty"
        });
    }

    // Find admin and update it with the request body
    Pi.findByIdAndUpdate(req.params.piId, {
        nom: req.body.nom || "Untitled PI",
        email: req.body.email,
        telephone: req.body.telephone,
        premierResponsable: req.body.premierResponsable,
        adresse: req.body.adresse,
    }, { new: true })
        .then(pi => {
            if (!pi) {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            res.send(pi);
        }).catch(err => {
            if (err.kind === 'ObjectId') {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            return res.status(500).send({
                message: "Error updating PI with id " + req.params.piId
            });
        });
};

// Delete a admin with the specified adminId in the request
exports.delete = (req, res) => {
    Pi.findByIdAndRemove(req.params.piId)
        .then(pi => {
            if (!pi) {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            res.send({ message: "PI deleted successfully!" });
        }).catch(err => {
            if (err.kind === 'ObjectId' || err.name === 'NotFound') {
                return res.status(404).send({
                    message: "PI not found with id " + req.params.piId
                });
            }
            return res.status(500).send({
                message: "Could not delete PI with id " + req.params.piId
            });
        });
};