# nginx config file used by docker

server {
    listen 80;
    listen [::]:80;
    client_max_body_size 5M;
    client_body_buffer_size 1M;

    root /var/www/;

    server_name decomp.local www.decomp.local;

    location / {
        try_files $uri @proxy_frontend;
    }

    location ~ ^/api(/.*)?$ {
        try_files $uri @proxy_api;
    }
    location /admin {
        try_files $uri @proxy_api;
    }
    location /static {
        try_files $uri @proxy_api;
    }
    location /media {
        root /;
    }

    location @proxy_api {
        proxy_intercept_errors on;
        error_page 502 503 504 =200 @backend_down;

        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Url-Scheme $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://backend:8000;
    }

    location @proxy_frontend {
        proxy_intercept_errors on;
        error_page 502 503 504 =200 /down.html;

        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Url-Scheme $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://frontend:8080;
    }

    location /_next/webpack-hmr {
        proxy_intercept_errors on;
        error_page 502 503 504 =200 /down.html;

        proxy_pass http://frontend:8080/_next/webpack-hmr;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

    # Avoid returning HTML from the /api endpoint if backend is unavailable
    location @backend_down {
        add_header X-Backend-Down true always;
        default_type application/json;
        return 200 '{}';
    }
}