upstream node {
    ip_hash;
    server paqt.chat:4000;
}

# frontend, redirecting to https
server {
    listen 80;
    server_name paqt.chat;

    root /var/www/html/frontend_build;

    access_log /var/log/nginx/frontend-access.log;
    error_log /var/log/nginx/frontend-error.log;
    index index.html;

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

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

# frontend build
server {
    listen 443 ssl;
    server_name paqt.chat;

    root /var/www/html/frontend_build;

    access_log /var/log/nginx/frontend-access.log;
    error_log /var/log/nginx/frontend-error.log;
    index index.html;

    ssl_certificate /etc/letsencrypt/live/paqt.chat/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/paqt.chat/privkey.pem;

    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    location / {
        try_files $uri /index.html =404;
    }

    location /static {
        try_files $uri =404 @nodejs;
    }

    location @nodejs {
        proxy_pass http://node;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

    # To allow POST on static pages
    error_page  405     =200 $uri;

}

# php backend
server {
    listen 8081 ssl;
    server_name paqt.chat;

    root /var/www/html/public;
    index index.php  index.html index.htm;

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

    ssl_certificate /etc/letsencrypt/live/paqt.chat/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/paqt.chat/privkey.pem;

    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    location ~ \.php$ {
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,Authorization';
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain; charset=utf-8';
            add_header 'Content-Length' 0;
            return 204;
        }
        if ($request_method ~ 'POST|GET|PUT|DELETE') {
            add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
            add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,Authorization';
        }

        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass phpfpm:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}