---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Ensure apache log folder exists
  file:
    dest: "{{ horizon_apache_default_log_folder }}"
    state: directory
    owner: "{{ horizon_apache_default_log_owner }}"
    group: "{{ horizon_apache_default_log_grp }}"

# NOTE(hwoarang): Module enable/disable process is only functional on Debian
# and SUSE based systems.
- name: Enable apache2 modules
  apache2_module:
    name: "{{ item.name }}"
    state: "{{ item.state }}"
    ignore_configcheck: yes
  with_items:
    - "{{ horizon_apache_modules }}"
  when:
    - ansible_pkg_mgr in ['apt', 'zypper']
  notify: Restart apache2

- name: Drop apache2 configs
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: "{{ item.owner | default(horizon_system_user_name) }}"
    group: "{{ item.group | default(horizon_system_group_name) }}"
  with_items: "{{ horizon_apache_configs }}"
  notify: Restart apache2

- name: Disable default apache site
  file:
    path: "{{ item }}"
    state: "absent"
  with_items: "{{ horizon_apache_default_sites }}"
  notify: Restart apache2

# NOTE(hwoarang) Default openSUSE apache configuration ships
# with a <Directory /> configuration in /etc/apache2/httpd.conf
# so we need to get rid of it to allow all the symlinks in the
# root filesystem that horizon requires
# TODO: Can this be improved somehow?
- block:
  - name: Tag beginning of main apache2 directory configuration (SUSE)
    lineinfile:
      dest: "{{ horizon_apache_conf }}"
      insertbefore: '^<Directory />'
      line: "# BEGIN ANSIBLE MANAGED BLOCK"
      state: present
    notify: Restart apache2

  - name: Tag end of main apache2 directory configuration (SUSE)
    lineinfile:
      dest: "{{ horizon_apache_conf }}"
      insertafter: '^</Directory>'
      line: "# END ANSIBLE MANAGED BLOCK"
      state: present
    notify: Restart apache2

  - name: Remove default apache2 configuration for root directory (SUSE)
    blockinfile:
      dest: "{{ horizon_apache_conf }}"
      marker: "# {mark} ANSIBLE MANAGED BLOCK"
      content: ""
    notify: Restart apache2

  when: ansible_pkg_mgr == 'zypper'

- name: Enable Horizon Site
  file:
    src: "{{ horizon_apache_site_available }}"
    dest: "{{ horizon_apache_site_enabled }}"
    state: "link"
  when:
    - horizon_apache_site_available is defined
    - horizon_apache_site_enabled is defined
  notify: Restart apache2

- name: Ensure Apache ServerName
  lineinfile:
    dest: "{{ horizon_apache_conf }}"
    line: "ServerName {{ horizon_server_name }}"
  notify: Restart apache2

- name: Ensure Apache ServerTokens
  lineinfile:
    dest: "{{ horizon_apache_security_conf }}"
    regexp: '^ServerTokens'
    line: "ServerTokens {{ horizon_apache_servertokens }}"
  notify: Restart apache2

- name: Ensure Apache ServerSignature
  lineinfile:
    dest: "{{ horizon_apache_security_conf }}"
    regexp: '^ServerSignature'
    line: "ServerSignature {{ horizon_apache_serversignature }}"
  notify: Restart apache2

# Removing the Listen (or listen.conf inclusion) from apache config to prevent
# conflicts with ports.conf on CentOS and openSUSE
- name: Remove Listen from Apache config
  lineinfile:
    dest: "{{ horizon_apache_security_conf }}"
    regexp: "{{ (ansible_pkg_mgr == 'zypper') | ternary('^(Include.*listen\\.conf)', '^(Listen.*)') }}"
    backrefs: yes
    line: '#\1'
  notify: Restart apache2