# ---------------------------------------------------------------------------
# Nginx upstream / gateway error pages for Skinbase Nova
# ---------------------------------------------------------------------------
# Purpose:
#   Serve a Nova-styled static HTML page for nginx-level upstream failures such
#   as 502 Bad Gateway and 504 Gateway Timeout. These responses happen before
#   Laravel can render Blade error views, so they must be handled by nginx.
#
# Setup:
#   1. Include this file inside the `server {}` block for the Skinbase site.
#   2. Enable `fastcgi_intercept_errors on;` inside every FastCGI location that
#      should use these pages (at minimum `location = /index.php` and any other
#      direct `fastcgi_pass` location such as upload endpoints).
#   3. Ensure the static file exists at:
#        public/errors/upstream-gateway.html
#
# This snippet intentionally intercepts only upstream failures. Keep Laravel in
# control of normal application errors such as 404, 419, 429, and 500.
# ---------------------------------------------------------------------------

error_page 502 504 /errors/upstream-gateway.html;

location = /errors/upstream-gateway.html {
    internal;

    try_files /errors/upstream-gateway.html =502;

    add_header Cache-Control "no-store, no-cache, must-revalidate" always;
    add_header Content-Type  "text/html; charset=UTF-8" always;
}