# cookbooks/jenkins/default.rb

jen = node['jenkins']

# --- Java Runtime ---

package "openjdk-#{jen['java_version']}-jdk-headless" do
  action :install
end

# --- Jenkins Repository ---

execute 'add-jenkins-key' do
  command 'curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null'
  not_if 'test -f /usr/share/keyrings/jenkins-keyring.asc'
end

execute 'add-jenkins-repo' do
  command 'echo "deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/" > /etc/apt/sources.list.d/jenkins.list'
  not_if 'test -f /etc/apt/sources.list.d/jenkins.list'
end

execute 'apt-update-jenkins' do
  command 'apt-get update'
end

package 'jenkins' do
  action :install
end

# --- Jenkins directories ---

directory jen['home_dir'] do
  owner 'jenkins'
  group 'jenkins'
  mode '0755'
end

directory "#{jen['home_dir']}/plugins" do
  owner 'jenkins'
  group 'jenkins'
  mode '0755'
end

directory '/var/log/jenkins' do
  owner 'jenkins'
  group 'jenkins'
  mode '0750'
end

# --- JVM and Jenkins defaults ---

template '/etc/default/jenkins' do
  source 'templates/jenkins-defaults.erb'
  owner 'root'
  group 'root'
  mode '0644'
  variables(
    http_port: jen['http_port'],
    home_dir: jen['home_dir'],
    memory_max: jen['memory_max'],
    memory_min: jen['memory_min'],
    agent_port: jen['agent_port']
  )
  notifies :restart, 'service[jenkins]'
end

# --- Install plugins via CLI ---

jen['plugins'].each do |plugin|
  execute "install-plugin-#{plugin}" do
    command "java -jar #{jen['home_dir']}/war/WEB-INF/jenkins-cli.jar -s http://localhost:#{jen['http_port']}/ install-plugin #{plugin}"
    not_if "test -d #{jen['home_dir']}/plugins/#{plugin}"
  end
end

# --- Nginx reverse proxy ---

package 'nginx' do
  action :install
end

template '/etc/nginx/sites-available/jenkins' do
  source 'templates/jenkins-nginx.conf.erb'
  owner 'root'
  group 'root'
  mode '0644'
  variables(
    server_name: jen['proxy_server_name'],
    http_port: jen['http_port']
  )
  notifies :reload, 'service[nginx]'
end

link '/etc/nginx/sites-enabled/jenkins' do
  to '/etc/nginx/sites-available/jenkins'
  notifies :reload, 'service[nginx]'
end

service 'jenkins' do
  action [:enable, :start]
end

service 'nginx' do
  action [:enable, :start]
end