var exec = require("child_process").exec,
  express = require('express'),
  httpProxy = require("http-proxy"),
  router = express.Router(),
  gitBackend = require("git-http-backend"),
  spawn = require("child_process").spawn

router.get('/', (req, res) => {
  const sessionId = req.headers["x-sandstorm-session-id"]
  exec(`getPublicId ${sessionId}`, (err, rv) => {
    if(err)
      return res.end(err)
    const lines = rv.split("\n")
    const publicId = lines[0]
    const hostname = lines[1]
    const domain = publicId+"."+hostname
    const url = lines[2]
    const isDemo = lines[3] == "true"
    res.render("index", {domain, isDemo, publicId, url})
  })
})

router.use("/git", (req, res) => {
  req.pipe(gitBackend(req.url, (err, service) => {
    if(err)
      return res.end(err+"\n")
    res.setHeader("content-type", service.type)
    console.log("cmd", service.cmd)
    const ps = spawn(service.cmd, service.args.concat("/var/git"))
    ps.stdout.pipe(service.createStream()).pipe(ps.stdin)
  })).pipe(res)
})

var proxy = httpProxy.createProxyServer({
  target: "http://127.0.0.1:8001/admin/",
  changeOrigin: true
})

router.use("/admin/", (req, res) => proxy.web(req, res))

module.exports = router