---
# Nginx reverse proxy for Nextcloud

- name: Create certbot webroot
  file:
    path: /var/www/certbot
    state: directory
    owner: www-data
    group: www-data
    mode: "0755"

- name: Deploy HTTP-only nginx config (for certbot)
  copy:
    dest: /etc/nginx/sites-available/nextcloud
    content: |
      server {
          listen 80;
          server_name {{ nextcloud_domain }};
          location /.well-known/acme-challenge/ { root /var/www/certbot; }
          location / { return 200 'phantom setup in progress'; add_header Content-Type text/plain; }
      }
    mode: "0644"
  notify: reload nginx

- name: Enable Nextcloud nginx site
  file:
    src: /etc/nginx/sites-available/nextcloud
    dest: /etc/nginx/sites-enabled/nextcloud
    state: link
  notify: reload nginx

- name: Flush handlers to apply HTTP config
  meta: flush_handlers

- name: Setup TLS (certbot with self-signed fallback)
  include_tasks: ../../common/tls_setup.yml
  vars:
    _tls_domain: "{{ nextcloud_domain }}"

- name: Deploy SSL nginx config
  copy:
    dest: /etc/nginx/sites-available/nextcloud
    content: |
      upstream php-handler {
          server unix:/run/php/php{{ php_ver }}-fpm-nextcloud.sock;
      }

      server {
          listen 80;
          server_name {{ nextcloud_domain }};
          location /.well-known/acme-challenge/ { root /var/www/certbot; }
          location / { return 301 https://$host$request_uri; }
      }

      server {
          listen 443 ssl http2;
          server_name {{ nextcloud_domain }};

          ssl_certificate {{ _ssl_cert }};
          ssl_certificate_key {{ _ssl_key }};
          ssl_protocols TLSv1.2 TLSv1.3;
          ssl_ciphers HIGH:!aNULL:!MD5;
          ssl_prefer_server_ciphers on;

          server_tokens off;
          {% if _is_selfsigned | default(false) | bool %}
          add_header Strict-Transport-Security "max-age=0" always;
          {% else %}
          add_header Strict-Transport-Security "max-age=63072000; includeSubDomains" always;
          {% endif %}
          add_header X-Content-Type-Options nosniff always;
          add_header X-Frame-Options SAMEORIGIN always;
          add_header X-Robots-Tag "noindex, nofollow" always;
          add_header Referrer-Policy no-referrer always;

          client_max_body_size 10G;
          client_body_timeout 3600s;
          fastcgi_buffers 64 4K;

          root /var/www/nextcloud;

          location = /.well-known/carddav { return 301 $scheme://$host/remote.php/dav; }
          location = /.well-known/caldav { return 301 $scheme://$host/remote.php/dav; }
          location = /.well-known/webfinger { return 301 $scheme://$host/index.php/.well-known/webfinger; }
          location = /.well-known/nodeinfo { return 301 $scheme://$host/index.php/.well-known/nodeinfo; }

          location / { rewrite ^ /index.php; }

          location ~ ^\/(?:build|tests|config|lib|3rdparty|templates|data)\/ { deny all; }
          location ~ ^\/(?:\.|autotest|occ|issue|indie|db_|console) { deny all; }

          location ~ ^\/(?:index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|ocs-provider\/.+)\.php(?:$|\/) {
              fastcgi_split_path_info ^(.+?\.php)(\/.*|)$;
              set $path_info $fastcgi_path_info;
              try_files $fastcgi_script_name =404;
              include fastcgi_params;
              fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
              fastcgi_param PATH_INFO $path_info;
              fastcgi_param HTTPS on;
              fastcgi_param modHeadersAvailable true;
              fastcgi_param front_controller_active true;
              fastcgi_pass php-handler;
              fastcgi_intercept_errors on;
              fastcgi_request_buffering off;
              fastcgi_read_timeout 3600;
          }

          location ~ ^\/(?:updater|ocs-provider)(?:$|\/) { try_files $uri/ =404; index index.php; }
          location ~ \.(?:css|js|woff2?|svg|gif|map)$ { try_files $uri /index.php$request_uri; add_header Cache-Control "public, max-age=15778463"; access_log off; }
          location ~ \.(?:png|html|ttf|ico|jpg|jpeg|bcmap|mp4|webm)$ { try_files $uri /index.php$request_uri; access_log off; }
      }
    mode: "0644"
  notify: reload nginx