const router = require('express').Router()
const fs = require('fs')
const path = require('path')

module.exports = (plugin, app) => {
  router.get(['/db/:collection', '/db/:collection/:type', '/db/:collection/:type/:name'], async function(req, res) {
    let collection = app.live.db.getCollection(req.params.collection).chain()
    let results = []
    let error = ''
    let errorCode = 0
    if (!collection) {
      // TODO: 404 - collection missing
    } else {
      if (req.params.name) {
        results = collection.find({type: req.params.type, name: req.params.name})
        if (results.length === 0) {
          error = `No such entry "${req.params.name}"`
          errorCode = 404
        }
      } else if (req.params.type) {
        results = collection.find({type: req.params.type})
        if (results.length === 0) {
          error = `No such collection type "${req.params.type}"`
          errorCode = 404
        }
      } else {
        results = collection.find({})
        if (results.length === 0) {
          error = `Collection empty`
          errorCode = 404
        }
      }
    }
    if (req.query['sort-by']) {
      results.simplesort(req.query['sort-by'])
    }
    results = results.data()

    let content
    if (errorCode > 0) {
      content = error
    } else {
      content = app.dot.tables({...req.params, results, type: req.params.type, name: req.params.name, collection: req.params.collection})
    }

    // build the location
    let loc = '<a href="/">'+app.live.conf['shortname']+'</a>'
    let crumbs = req.path.split('/')
    let title = [...crumbs].reverse().filter(v=>v!==''&&v!=='db').map(v=>v.charAt(0).toUpperCase()+v.slice(1)).join(' - ')
    for (let i = 1; i < crumbs.length; i++) {
      if (crumbs[i] == '') continue
      loc += ' &#8594 <a href="'+crumbs.slice(0,i).join('/')+'/'+crumbs[i]+'/">'+(crumbs[i].replace('-', ' '))+'</a>'
    }

    res.render('index', {
      content,
      menu: app.live.menu,
      location: loc,
      title: title,
      www_name: app.live.conf.www_name,
      www_copyright: app.live.conf.www_copyright,
      scripts: ['/js/gear.js'],
    })
  })

  plugin.log('added aedifex route')

  return router
}