import path from 'path'
import fs from 'fs/promises'
import { Flaska, FileResponse, HttpError, QueryHandler } from 'flaska'

import config from './config.mjs'
import PageRoutes from './page/routes.mjs'
// import ArticleRoutes from './article/routes.mjs'
import ParserMiddleware from './parser/middleware.mjs'

export function run(http, port, core) {
  let localUtil = new core.sc.Util(import.meta.url)
  const staticRoot = localUtil.getPathFromRoot('../public')

  const flaska = new Flaska({
    log: core.log,
    nonce: ['script-src'],
    nonceCacheLength: 50,
    defaultHeaders: {
      'Server': 'Flaska',
      'X-Content-Type-Options': 'nosniff',
      'Content-Security-Policy': `default-src 'self'; style-src 'self' 'unsafe-inline'; img-src * data: blob:; object-src 'none'; frame-ancestors 'none'; script-src 'self'`,
      'Cross-Origin-Opener-Policy': 'same-origin',
      'Cross-Origin-Resource-Policy': 'same-origin',
      'Cross-Origin-Embedder-Policy': 'require-corp',
    },
  }, http)

  if (config.get('NODE_ENV') === 'development') {
    flaska.devMode()
  }

  const parser = new ParserMiddleware()

  flaska.before(function(ctx) {
    ctx.state.started = new Date().getTime()
  })
  flaska.before(QueryHandler())
  flaska.before(parser.contextParser())

  flaska.after(function(ctx) {
    let ended = new Date().getTime()
    var requestTime = ended - ctx.state.started

    let status = ''
    let level = 'info'
    if (ctx.status >= 400) {
      status = ctx.status + ' '
      level = 'warn'
    }
    if (ctx.status >= 500) {
      level = 'error'
    }

    ctx.log[level]({
      duration: requestTime,
      status: ctx.status,
    }, `<-- ${status}${ctx.method} ${ctx.url}`)
  })
  
  const page = new PageRoutes()
  flaska.get('/api/pagetree', page.getPageTree.bind(page))
  // flaska.get('/api/pages', page.getAllPages.bind(page))
  // flaska.get('/api/pages/:pageId', page.getSinglePage.bind(page))

  // const article = new ArticleRoutes()
  // flaska.get('/api/articles/public', article.getPublicAllArticles.bind(article))
  // flaska.get('/api/articles/public/:id', article.getPublicSingleArticle.bind(article))
  // flaska.get('/api/pages/:pageId/articles/public', article.getPublicAllPageArticles.bind(article))

  flaska.get('/::file', function(ctx) {
    if (ctx.params.file.startsWith('api/')) {
      throw new HttpError(404, 'Not Found: ' + ctx.params.file, { status: 404, message: 'Not Found: ' + ctx.params.file })
    }

    let file = path.resolve(path.join(staticRoot, ctx.params.file ? ctx.params.file : 'index.html'))

    if (!file.startsWith(staticRoot)) {
      ctx.status = 404
      ctx.body = 'HTTP 404 Error'
      return
    }

    return fs.stat(file).catch(function(err) {
      if (err.code === 'ENOENT') {
        file = path.resolve(path.join(staticRoot, 'index.html'))
        return fs.stat(file)
      }
      return Promise.reject(err)
    })
    .then(function(stat) {
      ctx.body = new FileResponse(file, stat)
    })
  })

  return flaska.listenAsync(port).then(function() {
    core.log.info('Server is listening on port ' + port)
  })
}