module Test.HTTPurple.ServerSpec where

import Prelude

import Control.Monad.Except (throwError)
import Data.Either (Either(..))
import Data.Generic.Rep (class Generic)
import Data.Maybe (Maybe(Nothing))
import Data.Options ((:=))
import Effect.Class (liftEffect)
import Effect.Exception (error)
import Foreign.Object (empty)
import HTTPurple.Request (Request)
import HTTPurple.Response (ResponseM, notFound, ok)
import HTTPurple.Server (serve)
import HTTPurple.Server as Server
import Node.Encoding (Encoding(UTF8))
import Node.FS.Sync (readTextFile)
import Node.HTTP.Secure (key, keyString, cert, certString)
import Routing.Duplex (RouteDuplex')
import Routing.Duplex as RD
import Routing.Duplex.Generic as G
import Routing.Duplex.Generic as RG
import Test.HTTPurple.TestHelpers (Test, (?=), get, get', getStatus)
import Test.Spec (describe, it)
import Test.Spec.Assertions (expectError)

data Route = Test

derive instance Generic Route _

route :: RouteDuplex' Route
route = RD.root $ G.sum
  { "Test": RD.path "test" RG.noArgs
  }

mockRouter :: Request Route -> ResponseM
mockRouter { route: Test } = ok $ RD.print route Test

serveSpec :: Test
serveSpec =
  describe "serve" do
    it "boots a server on the given port" do
      close <- liftEffect $ serve { port: 8080 } { route, router: mockRouter }
      out <- get 8080 empty "/test"
      liftEffect $ close $ pure unit
      out ?= "/test"
    it "responds with a 500 upon unhandled exceptions" do
      let router _ = throwError $ error "fail!"
      close <- liftEffect $ serve { port: 8080 } { route, router }
      status <- getStatus 8080 empty "/test"
      liftEffect $ close $ pure unit
      status ?= 500

serve'Spec :: Test
serve'Spec =
  describe "serve'" do
    it "boots a server with the given options" do
      close <-
        liftEffect
          $ serve { hostname: "localhost", port: 8080 } { route, router: mockRouter }
      out <- get 8080 empty "/test"
      liftEffect $ close $ pure unit
      out ?= "/test"

serveSecureSpec :: Test
serveSecureSpec =
  describe "serveSecure" do
    describe "with valid key and cert files" do
      it "boots a server on the given port" do
        close <-
          liftEffect
            $ serve { port: 8080, certFile: "./test/Mocks/Certificate.cer", keyFile: "./test/Mocks/Key.key" } { route, router: mockRouter }
        out <- get' 8080 empty "/test"
        liftEffect $ close $ pure unit
        out ?= "/test"
    describe "with invalid key and cert files" do
      it "throws" do
        expectError $ liftEffect
          $ serve { port: 8080, certFile: "", keyFile: "" } { route, router: mockRouter }

serveSecure'Spec :: Test
serveSecure'Spec =
  describe "serveSecure'" do
    describe "with valid key and cert files" do
      it "boots a server on the given port" do
        let
          options = { hostname: "localhost", port: 8080, certFile: "./test/Mocks/Certificate.cer", keyFile: "./test/Mocks/Key.key" }
        close <-
          liftEffect
            $ serve options { route, router: mockRouter }
        out <- get' 8080 empty "/test"
        liftEffect $ close $ pure unit
        out ?= "/test"

serverSpec :: Test
serverSpec =
  describe "Server" do
    serveSpec
    serve'Spec
    serveSecureSpec
    serveSecure'Spec