'use strict';

const Joi = require('joi');
const ObjectID = require('mongodb').ObjectID;

module.exports = (db, server) => {
    server.put('/users/:user/autoreply', (req, res, next) => {
        res.charSet('utf-8');

        const schema = Joi.object().keys({
            user: Joi.string().hex().lowercase().length(24).required(),
            status: Joi.boolean().truthy(['Y', 'true', 'yes', 1]).default(false),
            subject: Joi.string().empty('').trim().max(128),
            message: Joi.string().empty('').trim().max(10 * 1024)
        });

        const result = Joi.validate(req.params, schema, {
            abortEarly: false,
            convert: true
        });

        if (result.error) {
            res.json({
                error: result.error.message
            });
            return next();
        }

        if (!result.value.subject && 'subject' in req.params) {
            result.value.subject = '';
        }

        if (!result.value.message && 'message' in req.params) {
            result.value.message = '';
        }

        let user = (result.value.user = new ObjectID(result.value.user));
        db.users.collection('users').updateOne({ _id: user }, { $set: { autoreply: result.value.status } }, (err, r) => {
            if (err) {
                res.json({
                    error: err.message
                });
                return next();
            }
            if (!r.matchedCount) {
                res.json({
                    error: 'Unknown user'
                });
                return next();
            }

            db.database.collection('autoreplies').updateOne({ user }, { $set: result.value }, { upsert: true }, (err, r) => {
                if (err) {
                    res.json({
                        error: err.message
                    });
                    return next();
                }

                res.json({
                    success: true,
                    id: r.insertedId
                });

                return next();
            });
        });
    });

    server.get('/users/:user/autoreply', (req, res, next) => {
        res.charSet('utf-8');

        const schema = Joi.object().keys({
            user: Joi.string().hex().lowercase().length(24).required()
        });

        const result = Joi.validate(req.params, schema, {
            abortEarly: false,
            convert: true
        });

        if (result.error) {
            res.json({
                error: result.error.message
            });
            return next();
        }

        let user = new ObjectID(result.value.user);

        db.database.collection('autoreplies').findOne({ user }, (err, entry) => {
            if (err) {
                res.json({
                    error: err.message
                });
                return next();
            }

            entry = entry || {};
            res.json({
                success: true,
                status: !!entry.status,
                subject: entry.subject || '',
                message: entry.message || ''
            });

            return next();
        });
    });

    server.del('/users/:user/autoreply', (req, res, next) => {
        res.charSet('utf-8');

        const schema = Joi.object().keys({
            user: Joi.string().hex().lowercase().length(24).required()
        });

        const result = Joi.validate(req.params, schema, {
            abortEarly: false,
            convert: true
        });

        if (result.error) {
            res.json({
                error: result.error.message
            });
            return next();
        }

        let user = new ObjectID(result.value.user);

        db.users.collection('users').updateOne({ _id: user }, { $set: { autoreply: false } }, err => {
            if (err) {
                res.json({
                    error: err.message
                });
                return next();
            }

            db.database.collection('autoreplies').deleteOne({ user }, err => {
                if (err) {
                    res.json({
                        error: err.message
                    });
                    return next();
                }

                res.json({
                    success: true
                });

                return next();
            });
        });
    });
};