map $http_user_agent $format_suffix {
    "~*curl"  ".txt";
    "~*wget"  ".txt";
    default   "";
}

map $http_accept $final_suffix {
    "~*text/plain" ".txt";
    default        $format_suffix;
}

server {
    listen 80;
    server_name jayrup.me;
    root /usr/share/nginx/html;

    # Don't leak nginx version on error pages / server header
    server_tokens off;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss image/svg+xml;

    # Security headers
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Static asset caching
    location ~* \.(ico|css|js|gif|jpe?g|png|svg|woff2?)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }

    # Compatibility for assets prefix
    location = /assets/public_key {
        try_files /public_key /assets/public_key =404;
    }
    location = /assets/dissertation.pdf {
        try_files /dissertation.pdf /assets/dissertation.pdf =404;
    }

    # Serve PDFs directly
    location ~* \.pdf$ {
        add_header Content-Type application/pdf;
        add_header Content-Disposition inline;
        try_files $uri =404;
    }

    # /cv should point to the PDF or plaintext cv
    location = /cv {
        try_files
            /cv$final_suffix
            /cv/index$final_suffix
            /cv.pdf
            =404;
    }

    # /dissertation serves summary page or PDF fallback
    location = /dissertation {
        try_files
            /projects/dis/index$final_suffix
            /projects/dis/index.html
            /projects/dis$final_suffix
            /dissertation.pdf
            =404;
    }

    location / {
        try_files
            $uri$final_suffix
            $uri.html
            $uri/index$final_suffix
            $uri/index.html
            =404;
    }

    location ~* \.txt$ {
        add_header Content-Type text/plain;
    }
}