user www-data;
worker_processes auto;
pid /app/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 1024;
    use epoll;
    multi_accept on;
}

http {
    # Configuration de base
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    server_tokens off;

    # MIME types
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    # Logging
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /app/logs/nginx/access.log main;
    error_log /app/logs/nginx/error.log warn;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml
        image/svg+xml;

    # Rate limiting
    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
    limit_req_zone $binary_remote_addr zone=login:10m rate=1r/s;

    # Upstream servers

    upstream lecoffre_frontend {
        server localhost:3004;
        keepalive 32;
    }

    upstream ihm_client {
        server localhost:3003;
        keepalive 32;
    }

    upstream grafana {
        server localhost:3005;
        keepalive 32;
    }

    upstream loki {
        server localhost:3100;
        keepalive 32;
    }

    upstream status_api {
        server localhost:3006;
        keepalive 32;
    }

    upstream sdk_relay {
        server localhost:8090;
        keepalive 32;
    }

    upstream blindbit {
        server localhost:8000;
        keepalive 32;
    }

    # Serveur principal HTTP (port 80)
    server {
        listen 80 default_server;
        listen [::]:80 default_server;
        server_name _;

        # Redirection automatique vers HTTPS si disponible
        return 301 https://$host$request_uri;
    }

    # Serveur HTTPS (port 443)
    server {
        listen 443 ssl http2 default_server;
        listen [::]:443 ssl http2 default_server;
        server_name _;

        # Certificats SSL (auto-signés pour le développement)
        ssl_certificate /app/ssl/nginx-selfsigned.crt;
        ssl_certificate_key /app/ssl/nginx-selfsigned.key;

        # Configuration SSL
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384;
        ssl_prefer_server_ciphers off;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;

        # Headers de sécurité
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header Referrer-Policy "strict-origin-when-cross-origin" always;

        # Page de statut des services
        location /status/ {
            alias /var/www/lecoffre/status/;
            index index.html;
            try_files $uri $uri/ /status/index.html;

            location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg)$ {
                expires 1h;
                add_header Cache-Control "public, immutable";
            }
        }

        # API de statut des services
        location /status/api {
            limit_req zone=api burst=20 nodelay;
            proxy_pass http://status_api/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;

            # CORS
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
            add_header Access-Control-Allow-Headers "Content-Type, Authorization";

            if ($request_method = 'OPTIONS') {
                return 204;
            }
        }

        # Grafana - Interface de monitoring
        location /grafana/ {
            proxy_pass http://grafana/;
            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;
            proxy_set_header X-Grafana-Org-Id 1;

            # WebSocket support
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";

            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
            proxy_buffering off;
            proxy_request_buffering off;
        }

        # Loki API - API de logs
        location /loki/ {
            limit_req zone=api burst=10 nodelay;
            proxy_pass http://loki/;
            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;

            # CORS pour Grafana
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
            add_header Access-Control-Allow-Headers "Content-Type, Authorization";

            if ($request_method = 'OPTIONS') {
                return 204;
            }
        }

        # API backend - routes /back/ vers /api/
        location ~* ^/back/(.*)$ {
            limit_req zone=api burst=20 nodelay;
            proxy_pass http://lecoffre_backend/api/$1;
            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 $scheme;
            proxy_set_header Connection "";
            proxy_buffering off;
        }

        # API direct - routes /api/
        location /api/ {
            limit_req zone=api burst=20 nodelay;

            # CORS dynamique
            set $cors_origin "";
            if ($http_origin ~* ^(http://localhost:3000|http://local\.4nkweb\.com:3000|https://dev4\.4nkweb\.com)$) {
                set $cors_origin $http_origin;
            }

            proxy_hide_header Access-Control-Allow-Origin;
            proxy_hide_header Access-Control-Allow-Credentials;
            proxy_hide_header Access-Control-Allow-Headers;
            proxy_hide_header Access-Control-Allow-Methods;

            if ($request_method = OPTIONS) {
                add_header Access-Control-Allow-Origin $cors_origin always;
                add_header Access-Control-Allow-Credentials "true" always;
                add_header Access-Control-Allow-Headers "Content-Type, x-session-id, Authorization, x-request-id" always;
                add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
                return 204;
            }

            add_header Access-Control-Allow-Origin $cors_origin always;
            add_header Access-Control-Allow-Credentials "true" always;
            add_header Access-Control-Allow-Headers "Content-Type, x-session-id, Authorization" always;
            add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;

            proxy_pass http://lecoffre_backend/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;
            proxy_read_timeout 300;
            proxy_connect_timeout 300;
            proxy_send_timeout 300;
        }

        # WebSocket relay (sdk_relay)
        location /ws/ {
            proxy_pass http://sdk_relay/;
            proxy_set_header Sec-WebSocket-Key $http_sec_websocket_key;
            proxy_set_header Sec-WebSocket-Version $http_sec_websocket_version;
            proxy_set_header Sec-WebSocket-Protocol $http_sec_websocket_protocol;
            proxy_set_header Sec-WebSocket-Extensions $http_sec_websocket_extensions;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 86400;
        }

        # API de transfert de fonds
        location /api/v1/funds/ {
            limit_req zone=api burst=5 nodelay;
            proxy_pass http://lecoffre_backend/api/v1/funds/;
            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;
            proxy_read_timeout 300;
            proxy_connect_timeout 300;
            proxy_send_timeout 300;
        }

        # favicon
        location = /favicon.ico {
            root /var/www/lecoffre/assets;
            try_files /favicon.ico =404;
        }

        # blindbit
        location /blindbit/ {
            proxy_pass http://blindbit/;
            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;
        }

        # LeCoffre Front - Application principale
        # Redirige /lecoffre -> /lecoffre/
        location = /lecoffre {
            return 301 /lecoffre/;
        }
        location /lecoffre/ {
            proxy_pass http://lecoffre_frontend/;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 300;

            # Configuration spécifique pour Next.js
            proxy_buffering off;
            proxy_request_buffering off;
            proxy_set_header X-Forwarded-Host $host;
            proxy_set_header X-Forwarded-Server $host;
        }

        # ihm_client (root) - DOIT être en dernier
        location / {
            proxy_pass http://ihm_client;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 300;
        }
    }
        # API de statut des services
        location /status/api {
            limit_req zone=api burst=20 nodelay;
            proxy_pass http://status_api/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;

            # CORS
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
            add_header Access-Control-Allow-Headers "Content-Type, Authorization";

            if ($request_method = 'OPTIONS') {
                return 204;
            }
        }

        # Grafana - Interface de monitoring
        location /grafana/ {
            proxy_pass http://grafana/;
            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;
            proxy_set_header X-Grafana-Org-Id 1;

            # WebSocket support
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";

            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
            proxy_buffering off;
            proxy_request_buffering off;
        }

        # API backend - routes /back/ vers /api/
        location ~* ^/back/(.*)$ {
            limit_req zone=api burst=20 nodelay;
            proxy_pass http://lecoffre_backend/api/$1;
            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 $scheme;
            proxy_set_header Connection "";
            proxy_buffering off;
        }

        # API direct - routes /api/
        location /api/ {
            limit_req zone=api burst=20 nodelay;

            # CORS dynamique pour développement local
            set $cors_origin "";
            if ($http_origin ~* ^(http://local\.4nkweb\.com:3000|http://localhost:3000|https://dev4\.4nkweb\.com)$) {
                set $cors_origin $http_origin;
            }

            proxy_hide_header Access-Control-Allow-Origin;
            proxy_hide_header Access-Control-Allow-Credentials;
            proxy_hide_header Access-Control-Allow-Headers;
            proxy_hide_header Access-Control-Allow-Methods;

            if ($request_method = OPTIONS) {
                add_header Access-Control-Allow-Origin $cors_origin always;
                add_header Access-Control-Allow-Credentials "true" always;
                add_header Access-Control-Allow-Headers "Content-Type, x-session-id, Authorization, x-request-id" always;
                add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
                return 204;
            }

            add_header Access-Control-Allow-Origin $cors_origin always;
            add_header Access-Control-Allow-Credentials "true" always;
            add_header Access-Control-Allow-Headers "Content-Type, x-session-id, Authorization" always;
            add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;

            proxy_pass http://lecoffre_backend/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;
            proxy_read_timeout 300;
            proxy_connect_timeout 300;
            proxy_send_timeout 300;
        }

        # WebSocket relay (sdk_relay)
        location /ws/ {
            proxy_pass http://sdk_relay/;
            proxy_set_header Sec-WebSocket-Key $http_sec_websocket_key;
            proxy_set_header Sec-WebSocket-Version $http_sec_websocket_version;
            proxy_set_header Sec-WebSocket-Protocol $http_sec_websocket_protocol;
            proxy_set_header Sec-WebSocket-Extensions $http_sec_websocket_extensions;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 86400;
        }

        # LeCoffre Front - Application principale
        # Redirige /lecoffre -> /lecoffre/
        location = /lecoffre {
            return 301 /lecoffre/;
        }
        location /lecoffre/ {
            proxy_pass http://lecoffre_frontend/;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 300;

            # Configuration spécifique pour Next.js
            proxy_buffering off;
            proxy_request_buffering off;
            proxy_set_header X-Forwarded-Host $host;
            proxy_set_header X-Forwarded-Server $host;
        }

        # ihm_client (root) - DOIT être en dernier
        location / {
            proxy_pass http://ihm_client;
            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;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 300;
        }
    }
}