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

upstream apiserver {
    #edit your api port here
    ip_hash;
    server 127.0.0.1:7125;
}

upstream mjpgstreamer {
    #edit your webcam port here
    ip_hash;
    server 127.0.0.1:8081;
}

server {
    listen 80;
    listen [::]:80;

    access_log /var/log/nginx/mainsail-access.log;
    error_log /var/log/nginx/mainsail-error.log;

    #web_path from mainsail static files
    root /home/pi/mainsail;

    index index.html;
    server_name _;

    #max upload size for gcodes
    client_max_body_size 200M;

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

    location /printer {
        proxy_pass http://apiserver/printer;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
    }

    location /api {
        proxy_pass http://apiserver/api;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
    }

    location /access {
        proxy_pass http://apiserver/access;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
    }

    location /websocket {
        proxy_pass http://apiserver/websocket;
        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-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_read_timeout 86400;
    }

    location /machine {
        proxy_pass http://apiserver/machine;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
    }

    location /server {
        proxy_pass http://apiserver/server;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
    }

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