# This module is distributed under the GNU Affero General Public License:
# 
# Nginx module for puppet
# Copyright (C) 2010 Sarava Group
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Base class
class nginx::base {

  $ssl = $nginx_ssl ? {
    false   => false,
    default => true,
  }

  # Setup packages
  package { "nginx": ensure => installed, }

  # Config folders, see http://projects.reductivelabs.com/issues/86
  file { [ "/etc/nginx", "/etc/nginx/sites-available", "/etc/nginx/sites-enabled" ]:
    ensure  => directory,
    owner   => "root",
    group   => "root",
  }

  service { "nginx":
    enable     => true,
    ensure     => running,
    hasrestart => true,
    require    => Package["nginx"],
  }

  define site($ensure = present, $source = 'file') {
    # Proxy config file
    case $source {
      'file': {
        file { "/etc/nginx/sites-available/$name":
          source  => "puppet:///modules/site-nginx/$name",
          owner   => "root",
          group   => "root",
          mode    => 0644,
          ensure  => $ensure,
          notify  => Service["nginx"],
          require => File["/etc/nginx/sites-available"],
        }
      }
      'template': {
        file { "/etc/nginx/sites-available/$name":
          content => template("nginx/$name.erb"),
          owner   => "root",
          group   => "root",
          mode    => 0644,
          ensure  => $ensure,
          notify  => Service["nginx"],
          require => File["/etc/nginx/sites-available"],
        }
      }
     'none': {
        file { "/etc/nginx/sites-available/$name":
          owner   => "root",
          group   => "root",
          mode    => 0644,
          ensure  => $ensure,
          notify  => Service["nginx"],
          require => File["/etc/nginx/sites-available"],
        }
      }
    }

    $link = $ensure ? {
      present => "/etc/nginx/sites-available/$name",
      default => absent,
    }
  
    # Symlink to enable proxy configuration
    file { "/etc/nginx/sites-enabled/$name":
      ensure  => $link,
      require => File["/etc/nginx/sites-enabled"],
      notify  => Service["nginx"],
    }
  }

  # Main configuration
  file { "/etc/nginx/nginx.conf":
    content => template("nginx/nginx.conf.erb"),
    owner   => "root",
    group   => "root",
    mode    => 0644,
    ensure  => present,
    notify  => Service["nginx"],
  }
}

class nginx inherits nginx::base {
  case $ssl {
    true: {
      include ssl::proxy

      Service["nginx"] {
        require    => [ Package["nginx"],
                        File["/etc/nginx/sites-enabled/$domain"],
                        File["/etc/ssl/private/cert.pem"],
                        File["/etc/ssl/certs/cert.crt"] ],
      }
    }
  }

  # Default site
  nginx::base::site { "default":
    ensure => present,
    source => 'template',
  }

  # Domain site
  nginx::base::site { "$domain": ensure => present, }
}

class nginx::puppetmaster inherits nginx::base {

  $worker_processes = $puppetmaster_puppetmasters ? {
    ''      => 4,
    default => $puppetmaster_puppetmasters,
  }

  $worker_connections   = 1024
  $ssl_port             = 8140
  $non_ssl_port         = 8141
  $puppetmaster_servers = [ "127.0.0.1:18140",
                            "127.0.0.1:18141",
                            "127.0.0.1:18142",
                            "127.0.0.1:18143" ]

  file { "/etc/nginx/conf.d/puppetmaster.conf":
    content => template("nginx/puppetmaster.conf.erb"),
    owner   => "root",
    group   => "root",
    mode    => 0644,
    ensure  => present,
    notify  => Service["nginx"],
  }

  nginx::base::site { "puppetmaster":
    ensure  => present,
    source  => 'template',
    require => File['/etc/nginx/conf.d/puppetmaster.conf'],
  }

  # We don't want nginx to listen at port 80
  nginx::base::site { "default":
    source => 'none',
    ensure => absent,
  }

  File["/etc/nginx/nginx.conf"] {
    content => template("nginx/nginx.conf.puppetmaster.erb"),
  }
}