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# verifies:
#   1. jenkins service starts on master node
#   2. jenkins user can be extended on both master and slave
#   3. jenkins service not started on slave node
#   4. declarative jobs can be added and removed

import ./make-test-python.nix ({ pkgs, ...} : {
  name = "jenkins";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ bjornfor coconnor domenkozar eelco ];
  };

  nodes = {

    master =
      { ... }:
      { services.jenkins = {
          enable = true;
          jobBuilder = {
            enable = true;
            nixJobs = [
              { job = {
                  name = "job-1";
                  builders = [
                    { shell = ''
                        echo "Running job-1"
                      '';
                    }
                  ];
                };
              }

              { job = {
                  name = "folder-1";
                  project-type = "folder";
                };
              }

              { job = {
                  name = "folder-1/job-2";
                  builders = [
                    { shell = ''
                        echo "Running job-2"
                      '';
                    }
                  ];
                };
              }
            ];
          };
        };

        specialisation.noJenkinsJobs.configuration = {
          services.jenkins.jobBuilder.nixJobs = pkgs.lib.mkForce [];
        };

        # should have no effect
        services.jenkinsSlave.enable = true;

        users.users.jenkins.extraGroups = [ "users" ];

        systemd.services.jenkins.serviceConfig.TimeoutStartSec = "6min";
      };

    slave =
      { ... }:
      { services.jenkinsSlave.enable = true;

        users.users.jenkins.extraGroups = [ "users" ];
      };

  };

  testScript = { nodes, ... }:
    let
      configWithoutJobs = "${nodes.master.config.system.build.toplevel}/specialisation/noJenkinsJobs";
      jenkinsPort = nodes.master.config.services.jenkins.port;
      jenkinsUrl = "http://localhost:${toString jenkinsPort}";
    in ''
    start_all()

    master.wait_for_unit("jenkins")

    assert "Authentication required" in master.succeed("curl http://localhost:8080")

    for host in master, slave:
        groups = host.succeed("sudo -u jenkins groups")
        assert "jenkins" in groups
        assert "users" in groups

    slave.fail("systemctl is-enabled jenkins.service")

    with subtest("jobs are declarative"):
        # Check that jobs are created on disk.
        master.wait_for_unit("jenkins-job-builder")
        master.wait_until_fails("systemctl is-active jenkins-job-builder")
        master.wait_until_succeeds("test -f /var/lib/jenkins/jobs/job-1/config.xml")
        master.wait_until_succeeds("test -f /var/lib/jenkins/jobs/folder-1/config.xml")
        master.wait_until_succeeds("test -f /var/lib/jenkins/jobs/folder-1/jobs/job-2/config.xml")

        # Wait until jenkins is ready, reload configuration and verify it also
        # sees the jobs.
        master.succeed("curl --fail ${jenkinsUrl}/cli")
        master.succeed("curl ${jenkinsUrl}/jnlpJars/jenkins-cli.jar -O")
        master.succeed("${pkgs.jre}/bin/java -jar jenkins-cli.jar -s ${jenkinsUrl} -auth admin:$(cat /var/lib/jenkins/secrets/initialAdminPassword) reload-configuration")
        out = master.succeed("${pkgs.jre}/bin/java -jar jenkins-cli.jar -s ${jenkinsUrl} -auth admin:$(cat /var/lib/jenkins/secrets/initialAdminPassword) list-jobs")
        jobs = [x.strip() for x in out.splitlines()]
        # Seeing jobs inside folders requires the Folders plugin
        # (https://plugins.jenkins.io/cloudbees-folder/), which we don't have
        # in this vanilla jenkins install, so limit ourself to non-folder jobs.
        assert jobs == ['job-1'], f"jobs != ['job-1']: {jobs}"

        master.succeed(
            "${configWithoutJobs}/bin/switch-to-configuration test >&2"
        )

        # Check that jobs are removed from disk.
        master.wait_for_unit("jenkins-job-builder")
        master.wait_until_fails("systemctl is-active jenkins-job-builder")
        master.wait_until_fails("test -f /var/lib/jenkins/jobs/job-1/config.xml")
        master.wait_until_fails("test -f /var/lib/jenkins/jobs/folder-1/config.xml")
        master.wait_until_fails("test -f /var/lib/jenkins/jobs/folder-1/jobs/job-2/config.xml")

        # Reload jenkins' configuration and verify it also sees the jobs as removed.
        master.succeed("${pkgs.jre}/bin/java -jar jenkins-cli.jar -s ${jenkinsUrl} -auth admin:$(cat /var/lib/jenkins/secrets/initialAdminPassword) reload-configuration")
        out = master.succeed("${pkgs.jre}/bin/java -jar jenkins-cli.jar -s ${jenkinsUrl} -auth admin:$(cat /var/lib/jenkins/secrets/initialAdminPassword) list-jobs")
        jobs = [x.strip() for x in out.splitlines()]
        assert jobs == [], f"jobs != []: {jobs}"
  '';
})