events {
    worker_connections 1024;
    use epoll;
}

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

    upstream keycloak {
        server keycloak:8443;
    }

    upstream api-application {
        server api-application:8080;
    }

    upstream event-app {
        server event-app:80;
    }

    upstream frontend {
        server frontend:80;
    }

    server {
        listen 80;
        server_name _;

        location /auth/ {
            proxy_pass https://keycloak/;
            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_ssl_verify off;
        }

        location /api/v1/ {
            proxy_pass http://api-application;
            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 /ws {
            proxy_pass http://api-application;
            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_set_header Origin $scheme://$host;
        }

        location / {
            proxy_pass http://event-app;
            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;
        }
    }

    server {
        listen 80;
        server_name _;

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