# Open SWE dashboard frontend (TanStack Start SPA) + scoped API proxy.
# TEMPLATE: tokens (@@...@@) are rendered at first boot by user-data.sh.
#
# nginx is the SOLE ingress and security boundary (T5 OSWE-IAC-03): the backend
# binds 127.0.0.1:2024 and is NOT network-reachable. nginx proxies exactly two
# prefixes to it — /dashboard/api/* and /webhooks/* — and nothing else. The
# unauthenticated LangGraph agent API (/threads, /runs, /assistants, /store) is
# NEVER proxied; those paths return the SPA shell.
#
# Both ALB target groups (dashboard host + hooks host) point at this nginx :80,
# not at :2024 directly, so there is no path to the raw control plane even from
# inside the SG. Webhook signature verification still happens in the app (the raw
# body + GitHub/Slack/Linear signature headers are passed through unmodified).
server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name @@SERVER_NAME@@;

    root @@WWW_ROOT@@;
    index _shell.html;

    # ALB target-group health check (dashboard TG).
    location = /healthz { default_type text/plain; return 200 "ok\n"; }

    # Dashboard API + OAuth callback -> backend webapp.
    location /dashboard/api/ {
        proxy_pass http://@@BACKEND_ADDR@@;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 300s;
    }

    # Inbound webhooks (GitHub/Slack/Linear) -> backend webapp. Routed through
    # nginx so :2024 stays loopback-only (T5 OSWE-IAC-03). The raw request body +
    # signature headers pass through unmodified for in-app signature verification.
    location /webhooks/ {
        proxy_pass http://@@BACKEND_ADDR@@;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_request_buffering off;
        proxy_read_timeout 300s;
    }

    # Static assets + SPA shell fallback (client-side routing).
    location / {
        try_files $uri $uri/ /_shell.html;
    }
}