import ./make-test-python.nix ({ pkgs, lib, ... }:
{
  name = "castopod";
  meta = with lib.maintainers; {
    maintainers = [ alexoundos ];
  };

  nodes.castopod = { nodes, ... }: {
    # otherwise 500 MiB file upload fails!
    virtualisation.diskSize = 512 + 3 * 512;

    networking.firewall.allowedTCPPorts = [ 80 ];
    networking.extraHosts =
      lib.strings.concatStringsSep "\n"
        (lib.attrsets.mapAttrsToList
          (name: _: "127.0.0.1 ${name}")
          nodes.castopod.services.nginx.virtualHosts);

    services.castopod = {
      enable = true;
      database.createLocally = true;
      localDomain = "castopod.example.com";
      maxUploadSize = "512M";
    };
  };

  nodes.client = { nodes, pkgs, lib, ... }:
    let
      domain = nodes.castopod.services.castopod.localDomain;

      getIP = node:
        (builtins.head node.networking.interfaces.eth1.ipv4.addresses).address;

      targetPodcastSize = 500 * 1024 * 1024;
      lameMp3Bitrate = 348300;
      lameMp3FileAdjust = -800;
      targetPodcastDuration = toString
        ((targetPodcastSize + lameMp3FileAdjust) / (lameMp3Bitrate / 8));
      bannerWidth = 3000;
      banner = pkgs.runCommand "gen-castopod-cover.jpg" { } ''
        ${pkgs.imagemagick}/bin/magick `
        `-background green -bordercolor white -gravity northwest xc:black `
        `-duplicate 99 `
        `-seed 1 -resize "%[fx:rand()*72+24]" `
        `-seed 0 -rotate "%[fx:rand()*360]" -border 6x6 -splice 16x36 `
        `-seed 0 -rotate "%[fx:floor(rand()*4)*90]" -resize "150x50!" `
        `+append -crop 10x1@ +repage -roll "+%[fx:(t%2)*72]+0" -append `
        `-resize ${toString bannerWidth} -quality 1 $out
      '';

      coverWidth = toString 3000;
      cover = pkgs.runCommand "gen-castopod-banner.jpg" { } ''
        ${pkgs.imagemagick}/bin/magick `
        `-background white -bordercolor white -gravity northwest xc:black `
        `-duplicate 99 `
        `-seed 1 -resize "%[fx:rand()*72+24]" `
        `-seed 0 -rotate "%[fx:rand()*360]" -border 6x6 -splice 36x36 `
        `-seed 0 -rotate "%[fx:floor(rand()*4)*90]" -resize "144x144!" `
        `+append -crop 10x1@ +repage -roll "+%[fx:(t%2)*72]+0" -append `
        `-resize ${coverWidth} -quality 1 $out
      '';
    in
    {
      networking.extraHosts =
        lib.strings.concatStringsSep "\n"
          (lib.attrsets.mapAttrsToList
            (name: _: "${getIP nodes.castopod} ${name}")
            nodes.castopod.services.nginx.virtualHosts);

      environment.systemPackages =
        let
          username = "admin";
          email = "admin@${domain}";
          password = "Abcd1234";
          podcastTitle = "Some Title";
          episodeTitle = "Episode Title";
          browser-test = pkgs.writers.writePython3Bin "browser-test"
            {
              libraries = [ pkgs.python3Packages.selenium ];
              flakeIgnore = [ "E124" "E501" ];
            } ''
            from selenium.webdriver.common.by import By
            from selenium.webdriver import Firefox
            from selenium.webdriver.firefox.options import Options
            from selenium.webdriver.firefox.service import Service
            from selenium.webdriver.support.ui import WebDriverWait
            from selenium.webdriver.support import expected_conditions as EC
            from subprocess import STDOUT
            import logging

            selenium_logger = logging.getLogger("selenium")
            selenium_logger.setLevel(logging.DEBUG)
            selenium_logger.addHandler(logging.StreamHandler())

            options = Options()
            options.add_argument('--headless')
            service = Service(log_output=STDOUT)
            driver = Firefox(options=options, service=service)
            driver = Firefox(options=options)
            driver.implicitly_wait(30)

            # install ##########################################################

            driver.get('http://${domain}/cp-install')

            wait = WebDriverWait(driver, 20)

            wait.until(EC.title_contains("installer"))

            driver.find_element(By.CSS_SELECTOR, '#username').send_keys(
                '${username}'
            )
            driver.find_element(By.CSS_SELECTOR, '#email').send_keys(
                '${email}'
            )
            driver.find_element(By.CSS_SELECTOR, '#password').send_keys(
                '${password}'
            )
            driver.find_element(By.XPATH,
                                "//button[contains(., 'Finish install')]"
            ).click()

            wait.until(EC.title_contains("Auth"))

            driver.find_element(By.CSS_SELECTOR, '#email').send_keys(
                '${email}'
            )
            driver.find_element(By.CSS_SELECTOR, '#password').send_keys(
                '${password}'
            )
            driver.find_element(By.XPATH,
                                "//button[contains(., 'Login')]"
            ).click()

            wait.until(EC.title_contains("Admin dashboard"))

            # create podcast ###################################################

            driver.get('http://${domain}/admin/podcasts/new')

            wait.until(EC.title_contains("Create podcast"))

            driver.find_element(By.CSS_SELECTOR, '#cover').send_keys(
                '${cover}'
            )
            driver.find_element(By.CSS_SELECTOR, '#banner').send_keys(
                '${banner}'
            )
            driver.find_element(By.CSS_SELECTOR, '#title').send_keys(
                '${podcastTitle}'
            )
            driver.find_element(By.CSS_SELECTOR, '#handle').send_keys(
                'some_handle'
            )
            driver.find_element(By.CSS_SELECTOR, '#description').send_keys(
                'Some description'
            )
            driver.find_element(By.CSS_SELECTOR, '#owner_name').send_keys(
                'Owner Name'
            )
            driver.find_element(By.CSS_SELECTOR, '#owner_email').send_keys(
                'owner@email.xyz'
            )
            driver.find_element(By.XPATH,
                                "//button[contains(., 'Create podcast')]"
            ).click()

            wait.until(EC.title_contains("${podcastTitle}"))

            driver.find_element(By.XPATH,
                                "//span[contains(., 'Add an episode')]"
            ).click()

            wait.until(EC.title_contains("Add an episode"))

            # upload podcast ###################################################

            driver.find_element(By.CSS_SELECTOR, '#audio_file').send_keys(
                '/tmp/podcast.mp3'
            )
            driver.find_element(By.CSS_SELECTOR, '#cover').send_keys(
                '${cover}'
            )
            driver.find_element(By.CSS_SELECTOR, '#description').send_keys(
                'Episode description'
            )
            driver.find_element(By.CSS_SELECTOR, '#title').send_keys(
                '${episodeTitle}'
            )
            driver.find_element(By.XPATH,
                                "//button[contains(., 'Create episode')]"
            ).click()

            wait.until(EC.title_contains("${episodeTitle}"))

            driver.close()
            driver.quit()
          '';
        in
        [
          pkgs.firefox-unwrapped
          pkgs.geckodriver
          browser-test
          (pkgs.writeShellApplication {
            name = "build-mp3";
            runtimeInputs = with pkgs; [ sox lame ];
            text = ''
              out=/tmp/podcast.mp3
              sox -n -r 48000 -t wav - synth ${targetPodcastDuration} sine 440 `
              `| lame --noreplaygain -cbr -q 9 -b 320 - $out
              FILESIZE="$(stat -c%s $out)"
              [ "$FILESIZE" -gt 0 ]
              [ "$FILESIZE" -le "${toString targetPodcastSize}" ]
            '';
          })
        ];
    };

  testScript = ''
    start_all()
    castopod.wait_for_unit("castopod-setup.service")
    castopod.wait_for_file("/run/phpfpm/castopod.sock")
    castopod.wait_for_unit("nginx.service")
    castopod.wait_for_open_port(80)
    castopod.wait_until_succeeds("curl -sS -f http://castopod.example.com")

    client.succeed("build-mp3")

    with subtest("Create superadmin, log in, create and upload a podcast"):
        client.succeed(\
          "PYTHONUNBUFFERED=1 systemd-cat -t browser-test browser-test")
  '';
})