computer-playbook/roles/nginx-www-redirect/tasks/main.yml

---
- name: Find all .conf
  ansible.builtin.find:
    paths: "{{nginx.directories.http.servers}}"
    patterns: '*.*.conf'
  register: conf_files

# Filter all domains

- name: Filter domain names and remove .conf extension and path
  set_fact:
    filtered_domains: "{{ conf_files.files | map(attribute='path') | map('regex_search', domain_regex) | select('string') | map('regex_replace', path_regex, '') | map('regex_replace', '.conf$', '') | list }}"
  vars:
    domain_regex: "^{{nginx.directories.http.servers}}(?!www\\.)[^/]+\\.conf$"
    path_regex: "^{{nginx.directories.http.servers}}"

- name: The domains for which a www. redirect will be implemented
  debug:
    var: filtered_domains
  when: mode_debug | bool

# Routine for domains with primary domain included

- name: Set filtered_domains_with_primary_domain
  set_fact:
    filtered_domains_with_primary_domain: "{{ filtered_domains | select('search', primary_domain + '$') | list }}"

- name: Debug with primary domain
  debug:
    var: filtered_domains_with_primary_domain
  when: mode_debug | bool

- name: Include nginx-domain-redirect role with dynamic domain mappings for domains with {{primary_domain}} included
  include_role:
    name: nginx-domain-redirect
  vars:
    domain_mappings: "{{ filtered_domains_with_primary_domain | map('regex_replace', '^(.*)$', '{ source: \"www.\\1\", target: \"\\1\" }') | map('from_yaml') | list }}"
  when: not enable_wildcard_certificate | bool

- name: Include wildcard www. redirect for domains with {{primary_domain}} included
  vars:
    domain: "{{primary_domain}}"
  template: 
    src:  www.wildcard.conf.j2
    dest: "{{nginx_www_wildcard_configuration}}"
  notify: restart nginx
  when: enable_wildcard_certificate | bool

# Routine for domains without the primary domain included

- name: Set filtered_domains_without_primary_domain
  set_fact:
    filtered_domains_without_primary_domain: "{{ filtered_domains | reject('search', primary_domain + '$') | list }}"

- name: Debug domains without primary domain
  debug:
    var: filtered_domains_without_primary_domain
  when: mode_debug | bool

- name: Include nginx-domain-redirect role with dynamic domain mappings for domains without primary domain
  include_role:
    name: nginx-domain-redirect
  vars:
    domain_mappings: "{{ filtered_domains_without_primary_domain | map('regex_replace', '^(.*)$', '{ source: \"www.\\1\", target: \"\\1\" }') | map('from_yaml') | list }}"


# Cleanup
# Deactivated due to complexity
#- name: Cleanup dedicated nginx configurations for www redirect configuration
#  file:
#    path: "{{ nginx.directories.http.servers }}{{ item.source }}.conf"
#    state: absent
#  # Filter: Only first-level subdomains of primary_domain
#  # Exclude the primary domain itself
#  # Transform for www redirection
#  loop: "{{ filtered_domains_with_primary_domain 
#            | select('regex_search', '^[^.]+\\.' ~ primary_domain ~ '$') 
#            | reject('equalto', primary_domain)  
#            | map('regex_replace', '^(.*)$', '{ source: \"www.\\1\", target: \"\\1\" }')  
#            | map('from_yaml') 
#            | list }}"
#  notify: restart nginx
#  when: 
#    - enable_wildcard_certificate | bool  # Wildcard certificate must be enabled
#    - mode_cleanup | bool                 # Cleanup mode must be enabled

- name: Cleanup {{nginx_www_wildcard_configuration}}
  file:
    path: "{{nginx_www_wildcard_configuration}}"
    state: absent
  notify: restart nginx
  when: 
    - not enable_wildcard_certificate | bool
    - mode_cleanup | bool