# --------------------------------
# Base: safe in most environments
# --------------------------------
Options -Indexes
DirectoryIndex index.html

<IfModule mod_authz_core.c>
  <FilesMatch "^\.">
    Require all denied
  </FilesMatch>
</IfModule>

RewriteEngine On
# Never redirect local/dev hosts
RewriteCond %{HTTP_HOST} ^(localhost|127\.0\.0\.1|fr\.local|192\.168\.[0-9]+\.[0-9]+)$ [NC]
RewriteRule ^ - [L]

# --- HTTPS redirect ---
# Use ONE of these blocks.

# A) Direct TLS on this server (enable this if Apache terminates HTTPS here)
#RewriteCond %{HTTPS} off
#RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

# B) Behind a reverse proxy/CDN that sets X-Forwarded-Proto
#RewriteCond %{HTTP:X-Forwarded-Proto} =http [OR]
#RewriteCond %{HTTP:X-Forwarded-Proto} ^$
#RewriteCond %{HTTPS} !=on
#RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

# Don't interfere with ACME/http-01 if you do your own certs
#RewriteCond %{REQUEST_URI} ^/.well-known/acme-challenge/
#RewriteRule - - [L]

# --- MIME types (fonts/SVG/ESM) ---
<IfModule mod_mime.c>
  AddType font/woff2 .woff2
  AddType font/woff  .woff
  AddType image/svg+xml .svg
  AddType application/javascript .mjs
</IfModule>

# --- Security headers ---
<IfModule mod_headers.c>
  Header always set X-Frame-Options "SAMEORIGIN"
  Header always set X-XSS-Protection "1; mode=block"
  Header always set X-Content-Type-Options "nosniff"
  Header always set Referrer-Policy "strict-origin-when-cross-origin"
  Header always set Permissions-Policy "geolocation=(), microphone=(), camera=()"
  Header always set X-Download-Options "noopen"
  Header always set Expect-CT "max-age=86400, enforce"
  Header always set Cross-Origin-Resource-Policy "same-origin"
  Header always set X-Permitted-Cross-Domain-Policies "none"
  # HSTS only when actually on HTTPS
  Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" "expr=%{HTTPS} == 'on'"

  # CSP (modules, blobs, workers, etc.)
  Header always set Content-Security-Policy "default-src 'self'; base-uri 'self'; frame-ancestors 'self'; object-src 'none'; script-src 'self' 'sha256-ajmGY+5VJOY6+8JHgzCqsqI8w9dCQfAmqIkFesOKItM='; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; media-src 'self' blob:; worker-src 'self' blob:; form-action 'self'"
</IfModule>

# --- Caching (query-string based, no env vars needed) ---
<IfModule mod_headers.c>
  # HTML/PHP: no cache (only if PHP didn’t already set it)
  <FilesMatch "\.(html?|php)$">
    Header setifempty Cache-Control "no-cache, no-store, must-revalidate"
    Header setifempty Pragma "no-cache"
    Header setifempty Expires "0"
  </FilesMatch>

  # version.js: always non-cacheable
  <FilesMatch "^js/version\.js$">
    Header set Cache-Control "no-cache, no-store, must-revalidate"
    Header set Pragma "no-cache"
    Header set Expires "0"
  </FilesMatch>

  # Unversioned JS/CSS: 1 hour
  <FilesMatch "\.(?:m?js|css)$">
    Header set Cache-Control "public, max-age=3600, must-revalidate" "expr=%{QUERY_STRING} !~ /(^|&)v=/"
  </FilesMatch>

  # Unversioned static (images/fonts): 7 days
  <FilesMatch "\.(?:png|jpe?g|gif|webp|svg|ico|woff2?|ttf|otf)$">
    Header set Cache-Control "public, max-age=604800" "expr=%{QUERY_STRING} !~ /(^|&)v=/"
  </FilesMatch>

  # --- Versioned assets (?v=...) : 1 year + immutable (override anything else) ---
  <IfModule mod_headers.c>
    <FilesMatch "\.(?:m?js|css|png|jpe?g|gif|webp|svg|ico|woff2?|ttf|otf)$">
      # Only when query string has v=
      Header unset Cache-Control "expr=%{QUERY_STRING} =~ /(^|&)v=/"
      Header unset Expires       "expr=%{QUERY_STRING} =~ /(^|&)v=/"
      Header set Cache-Control "public, max-age=31536000, s-maxage=31536000, immutable" "expr=%{QUERY_STRING} =~ /(^|&)v=/"
    </FilesMatch>
  </IfModule>
</IfModule>

# --- Compression ---
<IfModule mod_brotli.c>
  BrotliCompressionQuality 5
  AddOutputFilterByType BROTLI_COMPRESS text/html text/css application/javascript application/json image/svg+xml
</IfModule>
<IfModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/css application/javascript application/json image/svg+xml
</IfModule>

# --- Disable TRACE ---
RewriteCond %{REQUEST_METHOD} ^TRACE
RewriteRule .* - [F]