# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# configuration of wa.fo / frode klevstul / oct 2025
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

# http ➔ https
server {
    listen 80;
    server_name wa.fo;
    return 301 https://$host$request_uri;
}

# * ➔ bare domain (https)
server {
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;

    ssl_certificate /etc/nginx/acme.sh/wa.fo/fullchain.pem;
    ssl_certificate_key /etc/nginx/acme.sh/wa.fo/key.pem;
    ssl_trusted_certificate /etc/nginx/acme.sh/wa.fo/cert.pem;

    server_name *.wa.fo;
    return 301 $scheme://wa.fo$request_uri;
}

# upstream configuration for postgrest (used as reversed proxy)
upstream postgrest {
    server localhost:3000;
}

# https
server {
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;

    ssl_certificate /etc/nginx/acme.sh/wa.fo/fullchain.pem;
    ssl_certificate_key /etc/nginx/acme.sh/wa.fo/key.pem;
    ssl_trusted_certificate /etc/nginx/acme.sh/wa.fo/cert.pem;

    add_header Strict-Transport-Security "max-age=63072000" always;

    root /var/www/wa.fo;
    index index.html;
    server_name wa.fo;

    location @myownredirect {
        return 302 /;
    }

    # redirect 404 not found to the root
    location / {
        error_page 404 = @myownredirect;
    }

    # /dbg/shortcode | debug mode
    location ~ ^/dbg/(\w+) {
        default_type  application/json;
        proxy_hide_header Content-Location;
        add_header Content-Location  /rpc/$upstream_http_content_location;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_http_version 1.1;
        proxy_pass http://postgrest/rpc/fwd?p_shortcode=$1&p_dbg=true;
    }

    # /shortcode | normal mode
    location ~ ^/([A-Za-z0-9]+) {
        # https://stackoverflow.com/questions/53353572/proxy-pass-cannot-have-uri-part-in-location-given-by-regular-expression
        rewrite ^/([A-Za-z0-9]+) /rpc/fwd break;
        default_type  application/json;
        proxy_hide_header Content-Location;
        add_header Content-Location  /rpc/$upstream_http_content_location;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_http_version 1.1;
        # note, that if writing 'post' (lowercase) instead of 'POST' (uppercase), that will lead to the postgrest error "cannot use the post method on rpc"
        proxy_method POST;
        # https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_set_body
        proxy_set_body '{"p_shortcode": "$1", "p_dbg": "false"}';
        proxy_pass http://postgrest;
    }

}