import asynchttpserver, asyncdispatch
import osproc

proc requestHandler(req:Request) {.async.} =
  if req.url.path == "/compile":
    let (output, exitCode) =  execCmdEx("make")
    let headers = if exitCode == 0: newHttpHeaders([("Content-Type","application/pdf")])
                  else: newHttpHeaders([("Content-Type","text/plain")])
    let content = if exitCode == 0: readFile("Abgabe.pdf")
                  else: output
    await req.respond(Http200, content, headers)
  elif req.url.path == "/backup":
    let (output, exitCode) =  execCmdEx("make backup")
    let headers = newHttpHeaders([("Content-Type","text/plain")])
    let content = if exitCode == 0: "Backup succeded"
                  else: output
    await req.respond(Http200, content, headers)
  else:
    await req.respond(Http404, "Not a valid API call")

when isMainModule:
  var server = newAsyncHttpServer()
  waitFor server.serve(Port(8080), requestHandler)