require('dotenv').load()

var fs = require('fs')
var app, express = require('express')
var http = require('http')
var bodyParser = require('body-parser')
var path = require('path')

var multer = require('multer')
var upload = multer({ dest: 'uploads/' })

var app, server

const db = require('./lib/db')

var site = module.exports = {}

site.init = function(){
  app = express()
  app.use(express.static(path.join(__dirname, './public')))
  app.use(bodyParser.json())
  app.use(bodyParser.urlencoded({ extended: false }))

  app.use(express.query())

  server = http.createServer(app).listen(process.env.PORT, function () {
    console.log('Cortex listening at http://localhost:%s', server.address().port)
  })

  const api_folders = crud(app, 'folder', db.Folder, {
    afterCreate: (folder) => {
      fs.mkdir('public/data/' + folder.id + '/', function(){
        console.log('created folder', folder.id, folder.name)
      })
    }
  })
  const api_files = crud(app, 'file', db.File)
  const api_jobs = crud(app, 'job', db.Job)
  const api_tasks = crud(app, 'task', db.Task)

  app.post('/folders/:id', upload.array('file'), function(req, res){
    if ( ! req.files ) return;
    let loaded = {};
    ( req.files || [] ).forEach( (file) => {
      loaded[file.filename] = false
      const fn = file.originalname
      fs.rename(file.path, 'public/data/' + req.params.id + '/' + fn, function(err){
        api_files.create({
          // table.string('username')
          'folder_id': req.params.id,
          'name': fn,
          'size': file.size,
          'generated': false,
          'processed': false,
        }).then( (file) => {
          loaded[file.filename] = file.toJSON()
          if (Object.keys(loaded).some( el => !! el )) {
            res.json( Object.keys(loaded).map(k=>loaded[k]).sort((a,b) => { b.id - a.id }) )
          }
        }).catch( (err) => {
          console.warn(err)
          res.sendStatus(500)
        })
      })
    })
  })

  function crud(app, type_s, model, callbacks){
    callbacks = callbacks || {}
    const type = '/' + type_s + 's/'
    const type_id = type + ':id'
  
    const crud = db.crud(type_s, model)
    
    // index
    app.get(type, (req, res) => {
      console.log('index', type)
      crud.index(req.query).then( (data) => {
        res.json(data ? data.toJSON() : [])
      })
//       }).catch( () => res.sendStatus(500) )
    })

    // show
    app.get(type_id, (req, res) => {
      console.log('show', type, req.params.id)
      crud.show(req.params.id).then( (data) => {
        // console.log(data)
        res.json(data.toJSON())
      })// .catch( (err) => res.sendStatus(500) )
    })

    // create
    app.post(type, (req, res) => {
      console.log('create', type)
      crud.create(req.body).then( (data) => {
        res.json(data.toJSON())
        callbacks.afterCreate && callbacks.afterCreate(data.toJSON())
      })// .catch( () => res.sendStatus(500) )
    })

    // update
    app.put(type_id, (req, res) => {
      console.log('update', type, req.params.id)
      crud.update(req.body.id, req.body).then( (data) => {
        res.json(data.toJSON())
      })// .catch( () => res.sendStatus(500) )
    })

    // destroy
    app.delete(type_id, (req, res) => {
      console.log('destroy', type, req.params.id)
      crud.destroy(req.params.id).then( (data) => {
        res.json(data.toJSON())
      })// .catch( () => res.sendStatus(500) )
    })
    
    return crud
  }
}
//   app.get("/p/:id", function(req, res){
//     res.sendFile("index.html", {root: './public'})
//   })
//   app.get("/get/random", function(req, res){
//     db.getRandom().then(function(img){
//       res.json(img)
//     })
//   })
//   app.get("/get/latest", function(req, res){
//     db.getLatest().then(function(img){
//       res.json(img)
//     })
//   })
//   app.get("/get/:id/hotlink", function(req, res){
//     db.getImage(req.params.id).then(function(img){
//       res.redirect(img.url)
//     })
//   })
//   app.get("/get/:id", function(req, res){
//     db.getImage(req.params.id).then(function(img){
//       res.json(img)
//     })
//   })

site.init()