require('dotenv').load();
var fs = require('fs')
var app, express = require('express');
var http = require('http');
var https = require('https');
var bodyParser = require('body-parser')
var cookieParser = require('cookie-parser')
var path = require('path')
var ejs = require('ejs')

var multer = require('multer')
var storage = multer.memoryStorage()
var multer_upload = multer({ storage: storage })

var app, server

var db = require("./db")

var upload = require("./upload")

var site = module.exports = {}
site.init = function(){
  app = express()
  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('plop listening at http://5.k:%s', server.address().port)
  })

  app.get("/p/get/random", function(req, res){
    db.getRandom().then(function(img){
      res.json(img)
    })
  })
  app.get("/p/list/", function(req, res){
    limit = parseInt(req.params.limit)
    if (isNaN(limit)) limit = 20
    else limit = Math.max(limit, 100)
    offset = parseInt(req.params.offset)
    if (isNaN(offset)) offset = 0
    db.getIndex(limit, offset).then(function(img){
      res.json(img)
    })
  })
  app.get("/p/get/", function(req, res){
    db.getLatest().then(function(img){
      res.json(img)
    })
  })
  app.get("/p/get/latest", function(req, res){
    db.getLatest().then(function(img){
      res.json(img)
    })
  })
  app.get("/p/get/:id/hotlink", function(req, res){
    db.getImage(req.params.id).then(function(img){
      res.redirect(img.url)
    })
  })
  app.get("/p/get/:id", function(req, res){
    db.getImage(req.params.id).then(function(img){
      res.json(img)
    })
  })
  app.post("/p/upload", multer_upload.single('image'), function(req, res){
    upload.put("image", req.file, {
      unacceptable: function(err){
        res.json({ error: err })
      },
      success: function(url){
        db.createImage(url).then(function(image){
          res.json(image)
        })
      }
    })
  })

  /* shaderblaster / asciiblaster apis */
  app.post("/cgi-bin/im/shader/upload", multer_upload.single('qqfile'), function(req, res){
    var now = Math.floor(Date.now() / 1000)
    var filename = sanitize(req.body.filename) + '_' + now + '.' + upload.getExtension(req.file)
    var path = '/im/ab/'
    upload.put("shader", req.file, {
      filename, path,
      unacceptable: function(err){
        res.json({ error: err })
      },
      success: function(url){
        db.createShaderImage({
          // date, name, dir, newfile, tag, remote_addr
          date: now,
          name: sanitize(req.body.username),
          dir: 'ab',
          newfile: filename,
          tag: sanitize(req.body.tag) || 'plop',
          remote_addr: req.ip || '127.0.0.1',
        }).then(function(image){
          res.json({
            success: true,
            size: req.file.size,
            url,
          })
        })
      }
    })
  })

  /* public urls last */
  app.get("/p/:id", function(req, res){
    res.sendFile("index.html", {root: './public'})
  })
  app.use('/p/', express.static(path.join(__dirname, '../public')))
}

function sanitize (s){ return (s || "").replace(new RegExp("[^-_a-zA-Z0-9]", 'g'), "") }