const express = require('express');
const req = require('express/lib/request');

module.exports = function (options) {
    const db = options.db;
    var router = express.Router();

    router.route('/')
        .get(function(request, response, next) {
            db.Entry.findAll({

            }).then(entries => {
                response.display("library", {
                    user: request.user,
                    pageTitle: "Library - Mantra",
                    entries: entries
                })
            }).catch(error => {
                next(error)
            })
        })

    router.route('/add')
        .get(function(request, response, next) {
            if (request.user) {
                response.display("library-form", {
                    user: request.user,
                    pageTitle: "Add Library - Mantra",
                    entry: { 
                        version: "1.0"
                    }
                })
            } else {
                next()
            }
        })
        .post(function(request, response, next) {
            if (request.user) {
                db.Dialect.findOne({
                    where: {
                        languageId: "en",
                        countryId: "int"
                    }
                }).then(dialect => {
                    if (dialect) {
                        return db.Entry.create({
                            name: request.body.name,
                            url: request.body.url,
                            dialectId: dialect.id,
                            licenseId: "copyright",
                            entryVersions: [
                                {
                                    tag: request.body.version
                                }
                            ]
                        }, {
                            include: [
                                {
                                    association: db.Entry.EntryVersions,
                                    
                                }
                            ]
                        })
                    } else {
                        response.redirect("/library/add") // TODO: Show error message on missing dialect...
                    }
                    
                }).then(entry => {
                    if (entry) {
                        response.redirect(`/library/${entry.id}`)
                    } else {
                        next()
                    }
                }).catch(error => {
                    next(error)
                })
            } else {
                next()
            }
        })


    router.route('/:id')
        .get(function(request, response, next) {
            db.Entry.findByPk(request.params.id, {
                include: [
                    {
                        association: db.Entry.EntryApproval
                    },
                    {
                        association: db.Entry.EntryVersions
                    }
                ]
            }).then(entry => {
                if (entry) {
                    if (entry.entryVersions.length == 1) {
                        response.redirect(`/v/${entry.entryVersions[0].id}`)
                    } else {
                        response.display("entry", {
                            user: request.user,
                            pageTitle: "Library - Mantra",
                            entry: entry
                        })
                    }
                    
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    return router;
};