'use strict';

module.exports = function (app, Issues) {

    app.route('/api/issues/:project')

        .get(function (req, res){
            const project = req.params.project;
            const filter = {project: project}
            for (let q in req.query){
                let value = req.query[q]
                if (q === "open"){value = value.toLowerCase() === 'true'}
                filter[q] = value
            }
            Issues.find(filter, (err, result) => {
                if (err) {return res.json(err)}
                res.json(result)
            })
        })

        .post(function (req, res){
            const project = req.params.project;
            if (!(req.body.issue_title && req.body.issue_text && req.body.created_by)) {return res.json({error: 'required field(s) missing'})}
            const doc = {
                project: project,
                issue_title: req.body.issue_title,
                issue_text: req.body.issue_text,
                created_by: req.body.created_by,
                assigned_to: req.body.assigned_to,
                status_text: req.body.status_text
            }
            Issues.create(doc, (err, result) => {
                if (err) {return res.json(err)}
                const newEntry = {
                    _id: result._id,
                    issue_title: result.issue_title,
                    issue_text: result.issue_text,
                    created_by: result.created_by,
                    assigned_to: result.assigned_to,
                    status_text: result.status_text,
                    created_on: result.created_on,
                    updated_on: result.updated_on,
                    open: result.open,
                }
                res.json(newEntry)
            })
        })

        .put(function (req, res){
            const _id = req.body._id
            const doc = {}
            for (let i in req.body){
                if (i !== '_id') {
                    if (req.body[i] !== ""){doc[i] = req.body[i]}
                }
            }
            if (!_id) {return res.json({error: 'missing _id'})}
            if (Object.values(doc).every(el => el === undefined)){return res.json({error: 'no update field(s) sent', _id: _id})}
            doc.updated_on = new Date().toISOString()
            Issues.findByIdAndUpdate(_id, {"$set": doc}, (err, result) => {
                if (err){return res.json({error: 'could not update', _id: _id})}
                if (!result){return res.json({error: 'could not update', _id: _id})}
                res.json({  result: 'successfully updated', '_id': _id })
            })

        })

        .delete(function (req, res){
            const _id = req.body._id
            if (!_id) {return res.json({error: 'missing _id'})}
            if (req.body.length > 1){return res.json({error: 'could not delete', _id: _id})}
            Issues.findByIdAndDelete(_id, (err, result) => {
                if (err){return res.json({error: 'could not delete', _id: _id})}
                if (!result){return res.json({error: 'could not delete', _id: _id})}
                res.json({result: 'successfully deleted', _id: _id})
            })

        });

};