resource_name :dirsrv_instance

property :instance_name,  String,  name_property: true
property :hostname,       String,  required: true
property :admin_password, String,  required: true
property :suffix,         String,  required: true
property :admin_username, String,  default: 'admin'
property :bind_dn,        String,  default: 'cn=Directory Manager'
property :port,           Integer, default: 389

action :create do
  include_recipe "apt"
  package "389-ds-base"

  include_recipe "ulimit"
  user_ulimit "dirsrv" do
    filehandle_limit 40960
  end

  config = {
    instance_name:  new_resource.instance_name,
    hostname:       new_resource.hostname,
    suffix:         new_resource.suffix,
    port:           new_resource.port,
    bind_dn:        new_resource.bind_dn,
    admin_username: new_resource.admin_username,
    admin_password: new_resource.admin_password,
    base_dir:       "/var/lib/dirsrv",
    conf_dir:       "/etc/dirsrv"
  }

  inst_dir = "/etc/dirsrv/slapd-#{new_resource.instance_name}"
  service_name = "dirsrv@#{new_resource.instance_name}"

  unless ::Dir.exists?(inst_dir)
    setup_config = "#{config[:conf_dir]}/setup-#{new_resource.instance_name}.inf"
    template setup_config do
      source "setup.inf.erb"
      mode "0600"
      owner "root"
      group "root"
      sensitive true
      variables config
    end

    execute "setup-#{new_resource.instance_name}" do
      command "setup-ds --silent --file #{setup_config}"
      creates ::File.join inst_dir, 'dse.ldif'
      action :nothing
      subscribes :run, "template[#{setup_config}]", :immediately
      notifies :restart, "service[#{service_name}]", :immediately
      notifies :delete, "template[#{setup_config}]", :immediately
      notifies :run, "execute[add users group]", :delayed
    end
  end

  service service_name do
    action [:enable, :start]
  end

  cookbook_file "#{Chef::Config[:file_cache_path]}/users.ldif" do
    source "users.ldif"
    owner "root"
    group "root"
  end

  execute "add users group" do
    command "ldapadd -x -w #{new_resource.admin_password} -D '#{new_resource.bind_dn}' -f '#{Chef::Config[:file_cache_path]}/users.ldif' -p #{new_resource.port} -h localhost"
    sensitive true
    action :nothing
  end

  unless node.chef_environment == "development"
    package "libnss3-tools" # provides pk12util

    cookbook_file "#{Chef::Config[:file_cache_path]}/tls.ldif" do
      source "tls.ldif"
      owner "root"
      group "root"
    end

    include_recipe "kosmos-nginx"
    include_recipe "kosmos-base::letsencrypt"

    dirsrv_hook = <<-EOF
    #!/usr/bin/env bash

    set -e

    # Copy the dirsrv certificate and restart the server if it has been renewed
    # This is necessary because dirsrv uses a different format for the certificates
    for domain in $RENEWED_DOMAINS; do
      case $domain in
      #{new_resource.hostname})
        openssl pkcs12 -export -in "${RENEWED_LINEAGE}/fullchain.pem" -inkey "${RENEWED_LINEAGE}/privkey.pem" -out #{Chef::Config[:file_cache_path]}/#{new_resource.hostname}.p12 -name 'Server-Cert' -passout pass:
        pk12util -i #{Chef::Config[:file_cache_path]}/#{new_resource.hostname}.p12 -d #{inst_dir} -W ''
        systemctl restart #{service_name}
        ;;
      esac
    done
    EOF

    file "/etc/letsencrypt/renewal-hooks/deploy/dirsrrv" do
      content dirsrv_hook
      mode 0755
      owner "root"
      group "root"
    end

    template "#{node['nginx']['dir']}/sites-available/#{new_resource.hostname}" do
      source 'nginx_conf_empty.erb'
      owner node["nginx"]["user"]
      mode 0640
    end

    nginx_certbot_site new_resource.hostname do
      notifies :run, "execute[add tls config]", :immediately
    end

    execute "add tls config" do
      command "ldapadd -x -w #{new_resource.admin_password} -D '#{new_resource.bind_dn}' -f '#{Chef::Config[:file_cache_path]}/tls.ldif' -p #{new_resource.port} -h localhost"
      sensitive true
      action :nothing
      notifies :restart, "service[#{service_name}]", :immediately
    end
  end
end