# 维护模式由发布脚本或人工运维通过固定文件控制。
# 文件存在时，公网页面展示维护页、API 返回 503；真实 TCP 内网来源仍可访问整站。
set $genarrative_maintenance 0;
if (-f /var/lib/genarrative/maintenance/enabled) {
    set $genarrative_maintenance 1;
}

if ($genarrative_internal_client) {
    set $genarrative_maintenance 0;
}

location = /maintenance.html {
    root /var/lib/genarrative/maintenance;
    try_files /page.html @genarrative_default_maintenance;
    add_header Cache-Control "no-store";
    internal;
}

location @genarrative_default_maintenance {
    root /srv/genarrative/web;
    try_files /maintenance.html =503;
    add_header Cache-Control "no-store";
    internal;
}

location = /404.html {
    if ($http_accept !~* "text/html") {
        return 404;
    }

    root /srv/genarrative/web;
    try_files /404.html =404;
    add_header Cache-Control "no-store";
    internal;
}