error_log /var/log/nginx/error.log info;

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

# ------------------------------------------------------------
# Default HTTP -> HTTPS redirect
# ------------------------------------------------------------
server {
    listen 80 default_server;
    server_name _;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

# ------------------------------------------------------------
# #***# DEFAULT 443 SERVER (NEU)
# Verhindert, dass der erste 443-vHost andere Subdomains "abfängt"
# ------------------------------------------------------------
server {
    listen 443 ssl http2 default_server;
    server_name _;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;

    # Einfach Verbindung schließen für unbekannte Hosts
    return 444;
}

# ------------------------------------------------------------
# UI (portal) - nur für server.schooltech.ch
# ------------------------------------------------------------
server {
    listen 443 ssl http2;
    server_name server.schooltech.ch;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;

    root /usr/share/nginx/html;
    index index.html;

    location / {
        try_files $uri $uri/ /index.html;
    }

    # API forwarding to auth (wie vorher) - nur für server.schooltech.ch
    location /api/ {
        proxy_pass http://appserverauth:3000/api/;
        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 $scheme;
    }

    # ------------------------------------------------------------
    # Internal auth endpoint for auth_request (used by other server blocks)
    # Einheitlicher nginxauth-Block: Host + URI an Auth-Service
    # ------------------------------------------------------------
    location = /nginxauth {
        internal;
        proxy_pass http://appserverauth:3000/internal/auth;   #***# AUTH: proxy_pass (wichtig)
        proxy_set_header Cookie $http_cookie;                 #***# AUTH: Cookie weitergeben

        #***# AUTH HEADER ERWEITERUNG
        proxy_set_header X-Original-URI $request_uri;
        proxy_set_header X-Original-Host $host;
        proxy_set_header X-Forwarded-Host $host;
    }

    # Security
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
}

# ------------------------------------------------------------
# abc.server.schooltech.ch - Controller on ThinkCentre
# ------------------------------------------------------------
server {
    listen 443 ssl http2;
    server_name abc.server.schooltech.ch;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;

    # ---- Static assets: keine Auth, damit Browser die .js/.css korrekt erhält ----
    location ~* \.(?:js|css|png|jpg|jpeg|gif|ico|svg|webp)$ {
        proxy_pass https://thinkcentre.local:10010;
        proxy_set_header Host thinkcentre.local;
        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;
        # kein proxy_set_header Connection / Upgrade hier
    }

    # ---- WebSocket-Endpoint (falls z.B. /echo) - auth prüfen ----
    location /echo {
        auth_request /nginxauth;
        proxy_pass https://thinkcentre.local:10010/echo;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_ssl_server_name on;
        proxy_ssl_name thinkcentre.local;
        proxy_ssl_verify off;

        proxy_set_header Host thinkcentre.local;
        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;
    }

    # ---- Hauptanwendung (HTML, API-Aufrufe) - auth prüfen ----
    location / {
        auth_request /nginxauth;

        proxy_pass https://thinkcentre.local:10010/;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_ssl_server_name on;
        proxy_ssl_name thinkcentre.local;
        proxy_ssl_verify off;

        proxy_set_header Host thinkcentre.local;
        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 Origin $http_origin;

        proxy_hide_header X-Frame-Options;
        add_header X-Frame-Options "ALLOWALL" always;

        proxy_hide_header Content-Security-Policy;
        add_header Content-Security-Policy "frame-ancestors https://server.schooltech.ch" always;
    }

    # /nginxauth (lokal für diesen vhost, aber internal request wird an auth-service weitergeleitet)
    location = /nginxauth {
        internal;
        proxy_pass http://appserverauth:3000/internal/auth;   #***# AUTH
        proxy_set_header Cookie $http_cookie;                 #***# AUTH

        #***# AUTH HEADER ERWEITERUNG
        proxy_set_header X-Original-URI $request_uri;
        proxy_set_header X-Original-Host $host;
        proxy_set_header X-Forwarded-Host $host;
    }
}

# ------------------------------------------------------------
# simulation3a29.server.schooltech.ch
# ------------------------------------------------------------
server {
    listen 443 ssl http2;
    server_name simulation3a29.server.schooltech.ch;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;

    # ---- Static assets: keine Auth ----
    location ~* \.(?:js|css|png|jpg|jpeg|gif|ico|svg|webp)$ {
        proxy_pass https://thinkcentre.local:1003;
        proxy_set_header Host thinkcentre.local;
        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;
        # kein proxy_set_header Connection / Upgrade hier
    }

    # ---- WebSocket-Endpoint ----
    location /echo {
        auth_request /nginxauth;
        proxy_pass https://thinkcentre.local:1003/echo;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_ssl_server_name on;
        proxy_ssl_name thinkcentre.local;
        proxy_ssl_verify off;

        proxy_set_header Host thinkcentre.local;
        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;
    }

    # ---- Hauptanwendung ----
    location / {
        auth_request /nginxauth;

        proxy_pass https://thinkcentre.local:1003/;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_ssl_server_name on;
        proxy_ssl_name thinkcentre.local;
        proxy_ssl_verify off;

        proxy_set_header Host thinkcentre.local;
        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 Origin $http_origin;

        proxy_hide_header X-Frame-Options;
        add_header X-Frame-Options "ALLOWALL" always;

        proxy_hide_header Content-Security-Policy;
        add_header Content-Security-Policy "frame-ancestors https://server.schooltech.ch" always;
    }

    # ------------------------------------------------------------
    # location = /nginxauth  (SIMULATION FIX)
    # ------------------------------------------------------------
    location = /nginxauth {
        internal;
        proxy_pass http://appserverauth:3000/internal/auth;   #***# SIMULATION: fehlende proxy_pass eingefügt
        proxy_set_header Cookie $http_cookie;                 #***# SIMULATION: Cookie weitergeben

        #***# AUTH HEADER ERWEITERUNG (nur einmal)
        proxy_set_header X-Original-URI $request_uri;
        proxy_set_header X-Original-Host $host;
        proxy_set_header X-Forwarded-Host $host;
    }
}

# ------------------------------------------------------------
# xyz.server.schooltech.ch (Guacamole on ThinkCentre)
# ------------------------------------------------------------
server {
    listen 443 ssl http2;
    server_name xyz.server.schooltech.ch;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;

    location / {
        auth_request /nginxauth;  # Auth prüfen

        proxy_pass http://thinkcentre.local:8080/;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        # Proxy Header (Upstream erwartet thinkcentre.local)
        proxy_set_header Host thinkcentre.local;              # bewusst: Upstream Host-Expectation
        proxy_set_header Origin $http_origin;
        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;

        # iFrame erlauben
        proxy_hide_header X-Frame-Options;
        add_header X-Frame-Options "ALLOWALL" always;

        proxy_hide_header Content-Security-Policy;
        add_header Content-Security-Policy "frame-ancestors *" always;
    }

    location = /nginxauth {
        internal;
        proxy_pass http://appserverauth:3000/internal/auth;   #***# XYZ: proxy_pass wie überall
        proxy_set_header Cookie $http_cookie;

        proxy_set_header X-Original-URI $request_uri;

        #***# XYZ AUTH HOST: Original-Host weitergeben (wichtig für Redirects/Checks)
        proxy_set_header X-Original-Host $host;
        proxy_set_header X-Forwarded-Host $host;
    }
}

# ------------------------------------------------------------
# portainer.server.schooltech.ch
# ------------------------------------------------------------
server {
    listen 443 ssl http2;
    server_name portainer.server.schooltech.ch;

    ssl_certificate /etc/letsencrypt/live/server.schooltech.ch/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/server.schooltech.ch/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;

    #***# PORTAINER: API direkt weiterleiten (kein auth_request)
    location ^~ /api/ {
        proxy_pass http://127.0.0.1:9000;   #***# auf lokalen Portainer HTTP Backend zeigen
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #***# PORTAINER: statische Assets / locales ebenfalls ohne auth (wichtig für i18n)
    location ~* \.(?:js|css|json|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
        proxy_pass http://127.0.0.1:9000;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location ^~ /locales/ {
        # explizit für i18n Pfade
        proxy_pass http://127.0.0.1:9000;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto https;
    }

    # Haupt-UI: auth_request greift nur hier (UI), nicht für /api/ oder Assets
    location / {
        auth_request /nginxauth;

        proxy_pass http://127.0.0.1:9000/;   #***# auf lokales Portainer HTTP Backend zeigen

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        #***# PORTAINER HOST FIX:
        proxy_set_header Host $host;                         #***# PORTAINER HOST
        proxy_set_header X-Forwarded-Host $host;            #***# PORTAINER HOST
        proxy_set_header X-Forwarded-Proto https;           #***# PORTAINER HOST

        proxy_set_header Origin $http_origin;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_hide_header X-Frame-Options;
        add_header X-Frame-Options "ALLOWALL" always;

        proxy_hide_header Content-Security-Policy;
        add_header Content-Security-Policy "frame-ancestors *" always;
    }

    location = /nginxauth {
        internal;
        proxy_pass http://appserverauth:3000/internal/auth;   #***# AUTH
        proxy_set_header Cookie $http_cookie;                 #***# AUTH

        #***# AUTH HEADER ERWEITERUNG
        proxy_set_header X-Original-URI $request_uri;
        proxy_set_header X-Original-Host $host;
        proxy_set_header X-Forwarded-Host $host;
    }
}
