const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')
const jwt = require('koa-jwt');
const env = require('./config/env');
// error handler
onerror(app)
app.use(jwt({ secret: env.noncestr }).unless({
  path: [
    /^\/api\/auth\/*/, /^\/*/, /^\/html\/*/, /^\/api\/callback\/*/
  ]
}))

// middlewares
app.use(bodyparser({
  enableTypes: ['json', 'form', 'text']
}))
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

app.use(views(__dirname + '/views', {
  extension: 'pug'
}))

// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// routes
let files = fs.readdirSync('./routes')
files.map(item => {
  const router = require(`./routes/${item.substr(0, item.indexOf('.'))}`)
  app.use(router.routes())
})
// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
});

module.exports = app