---
# SSL-enabled LEMP WordPress installation
- name: Install LEMP stack with WordPress and SSL
  hosts: all
  become: yes
  vars_files:
    - "../vars/{{ ansible_os_family | lower }}.yml"

  vars:
    # SSL Configuration
    enable_ssl: "{{ enable_ssl | default(false) }}"
    domain_name: "{{ domain_name | default('localhost') }}"
    www_redirect: "{{ www_redirect | default(true) }}"
    ssl_certificate_path: "{{ ssl_certificate_path | default('/etc/ssl/certs/' + domain_name + '.crt') }}"
    ssl_certificate_key_path: "{{ ssl_certificate_key_path | default('/etc/ssl/private/' + domain_name + '.key') }}"
    letsencrypt_email: "{{ letsencrypt_email | default('admin@' + domain_name) }}"

    # WordPress Configuration
    wordpress_path: /var/www/html
    wordpress_url: "{{ 'https://' + domain_name if enable_ssl else 'http://' + domain_name }}"

    # Database Configuration
    mysql_root_password: "{{ mysql_root_password | default('secure_root_password_' + ansible_date_time.epoch) }}"
    wordpress_db_name: "{{ wordpress_db_name | default('wordpress_db') }}"
    wordpress_db_user: "{{ wordpress_db_user | default('wordpress_user') }}"
    wordpress_db_password: "{{ wordpress_db_password | default('secure_wp_password_' + ansible_date_time.epoch) }}"

    # WordPress Admin
    wp_admin_user: "{{ wp_admin_user | default('admin') }}"
    wp_admin_password: "{{ wp_admin_password | default('secure_admin_password_' + ansible_date_time.epoch) }}"
    wp_admin_email: "{{ wp_admin_email | default(letsencrypt_email) }}"
    wp_site_title: "{{ wp_site_title | default('My WordPress Site') }}"

  tasks:
    # Include base LEMP installation
    - name: Include base LEMP installation tasks
      include_tasks: lemp-base-tasks.yml

    # SSL Certificate Management
    - name: Install Certbot for Let's Encrypt
      apt:
        name:
          - certbot
          - python3-certbot-nginx
        state: present
        update_cache: yes
      when: enable_ssl
      tags: ssl

    - name: Check if SSL certificate exists
      stat:
        path: "{{ ssl_certificate_path }}"
      register: ssl_cert_exists
      when: enable_ssl
      tags: ssl

    - name: Create temporary HTTP Nginx config for Let's Encrypt
      template:
        src: ../templates/wordpress.nginx.j2
        dest: /etc/nginx/sites-available/wordpress
      when: enable_ssl and not ssl_cert_exists.stat.exists
      notify: restart nginx
      tags: ssl

    - name: Enable temporary site
      file:
        src: /etc/nginx/sites-available/wordpress
        dest: /etc/nginx/sites-enabled/wordpress
        state: link
      when: enable_ssl and not ssl_cert_exists.stat.exists
      notify: restart nginx
      tags: ssl

    - name: Flush handlers to ensure Nginx is running
      meta: flush_handlers
      when: enable_ssl and not ssl_cert_exists.stat.exists

    - name: Generate Let's Encrypt certificate
      command: >
        certbot --nginx --non-interactive --agree-tos
        --email {{ letsencrypt_email }}
        -d {{ domain_name }}
        {% if www_redirect %}-d www.{{ domain_name }}{% endif %}
        --redirect
      when: enable_ssl and not ssl_cert_exists.stat.exists and domain_name != 'localhost'
      tags: ssl

    - name: Create self-signed certificate for localhost/testing
      block:
        - name: Create SSL directory
          file:
            path: /etc/ssl/private
            state: directory
            mode: '0700'

        - name: Generate self-signed certificate
          command: >
            openssl req -x509 -nodes -days 365 -newkey rsa:2048
            -keyout {{ ssl_certificate_key_path }}
            -out {{ ssl_certificate_path }}
            -subj "/C=US/ST=Test/L=Test/O=Test/CN={{ domain_name }}"
          args:
            creates: "{{ ssl_certificate_path }}"
      when: enable_ssl and not ssl_cert_exists.stat.exists and domain_name == 'localhost'
      tags: ssl

    # Nginx Configuration
    - name: Configure Nginx for WordPress with SSL
      template:
        src: ../templates/wordpress-ssl.nginx.j2
        dest: /etc/nginx/sites-available/wordpress
        backup: yes
      when: enable_ssl
      notify: restart nginx
      tags: nginx

    - name: Configure Nginx for WordPress without SSL
      template:
        src: ../templates/wordpress.nginx.j2
        dest: /etc/nginx/sites-available/wordpress
        backup: yes
      when: not enable_ssl
      notify: restart nginx
      tags: nginx

    - name: Enable WordPress site
      file:
        src: /etc/nginx/sites-available/wordpress
        dest: /etc/nginx/sites-enabled/wordpress
        state: link
      notify: restart nginx
      tags: nginx

    - name: Remove default Nginx site
      file:
        path: /etc/nginx/sites-enabled/default
        state: absent
      notify: restart nginx
      tags: nginx

    # Rate limiting configuration
    - name: Configure Nginx rate limiting
      blockinfile:
        path: /etc/nginx/nginx.conf
        marker: "# {mark} ANSIBLE MANAGED BLOCK - Rate Limiting"
        insertafter: "http {"
        block: |
          # Rate limiting zones
          limit_req_zone $binary_remote_addr zone=admin:10m rate=5r/m;
          limit_req_zone $binary_remote_addr zone=api:10m rate=10r/m;
      notify: restart nginx
      tags: nginx

    # WordPress Configuration
    - name: Configure WordPress with SSL settings
      template:
        src: ../templates/wp-config.php.j2
        dest: "{{ wordpress_path }}/wp-config.php"
        owner: www-data
        group: www-data
        mode: '0600'
      tags: wordpress

    # SSL Auto-renewal
    - name: Set up Let's Encrypt auto-renewal
      cron:
        name: "Renew Let's Encrypt certificates"
        minute: "0"
        hour: "12"
        job: "/usr/bin/certbot renew --quiet"
      when: enable_ssl and domain_name != 'localhost'
      tags: ssl

    # Firewall Configuration
    - name: Configure UFW for HTTP and HTTPS
      ufw:
        rule: allow
        port: "{{ item }}"
        proto: tcp
      loop:
        - "80"
        - "443"
      when: enable_ssl
      tags: firewall

  handlers:
    - name: restart nginx
      service:
        name: nginx
        state: restarted

    - name: restart php-fpm
      service:
        name: "php{{ php_version }}-fpm"
        state: restarted

    - name: restart mysql
      service:
        name: "{{ mysql_service }}"
        state: restarted