worker_processes 1;

error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    resolver 127.0.0.11 valid=10s ipv6=off;

    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  /var/log/nginx/access.log  main;

    sendfile        on;
    keepalive_timeout  65;

    upstream backend {
        zone backend 64k;
        server backend:8000 resolve;
    }

    upstream frontend_dev {
        zone frontend_dev 64k;
        server frontend-dev:5173 resolve;
    }

    upstream onlyoffice {
        zone onlyoffice 64k;
        server onlyoffice:80 resolve;
    }

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

    map $http_x_forwarded_proto $onlyoffice_scheme {
        default $http_x_forwarded_proto;
        "" $scheme;
    }

    map $http_x_forwarded_host $onlyoffice_host {
        default $http_x_forwarded_host;
        "" $http_host;
    }

    server {
        listen 80;
        server_name _;
        client_max_body_size 20m;

        location = /favicon.ico {
            root /usr/share/nginx/html;
            try_files /favicon.ico =204;
            access_log off;
            log_not_found off;
            expires 1d;
            add_header Cache-Control "public, max-age=86400" always;
        }

        location ~* (^|/)(\.git|\.env($|[./_-])|wp-config\.php|config\.php|database\.yml|backup($|[._/-])) {
            access_log off;
            log_not_found off;
            return 404;
        }

        location = /onlyoffice-host.html {
            proxy_pass http://frontend_dev;
            proxy_set_header Host $host;
            add_header Cache-Control "no-store" always;
            add_header Content-Security-Policy "default-src 'none'; script-src 'self'; connect-src 'self'; img-src 'self' data: blob:; style-src 'self' 'unsafe-inline'; frame-src 'self' blob:; frame-ancestors 'self' tauri: http://tauri.localhost https://tauri.localhost http://localhost:* http://127.0.0.1:*; object-src 'none'; base-uri 'none'; form-action 'none'" always;
        }

        location = /onlyoffice-host.js {
            proxy_pass http://frontend_dev;
            proxy_set_header Host $host;
            add_header Cache-Control "no-store" always;
        }

        location /api/ {
            proxy_pass http://backend;
            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;
        }

        location /onlyoffice/ {
            proxy_pass http://onlyoffice/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $http_host;
            proxy_set_header X-Forwarded-Host $onlyoffice_host/onlyoffice;
            proxy_set_header X-Forwarded-Proto $onlyoffice_scheme;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_read_timeout 3600s;
            proxy_send_timeout 3600s;
        }

        location /health {
            proxy_pass http://backend;
            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;
        }

        location = /readyz {
            proxy_pass http://backend;
            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;
        }

        location / {
            proxy_pass http://frontend_dev;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            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 60s;
            proxy_send_timeout 60s;
        }
    }
}