#user  nobody;
worker_processes 1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
  worker_connections 1024;
}


http {
  include mime.types;
  default_type application/octet-stream;

  sendfile on;
  # tcp_nopush     on;

  #keepalive_timeout  0;
  # keepalive_timeout 65;

  # gzip on;
  # gzip_buffers 32 16k;
  # gzip_comp_level 6;
  # gzip_min_length 1k;
  # gzip_static on;
  # gzip_types text/plain
  #   text/css
  #   application/javascript
  #   application/json
  #   application/x-javascript
  #   text/xml
  #   application/xml
  #   application/xml+rss
  #   text/javascript; #设置压缩的文件类型
  # gzip_vary on;

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

  # 如需多机负载均衡，在此增加多个后端地址
  upstream easyflow_api {
    server easyflow-api:8080;
    keepalive 64;
  }

  server {
    listen 8080;
    server_name localhost;

    location / {
      root /usr/share/nginx/html;
      try_files $uri $uri/ /index.html;
      index index.html;
      # Enable CORS
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
      if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Max-Age' 1728000;
        add_header 'Content-Type' 'text/plain charset=UTF-8';
        add_header 'Content-Length' 0;
        return 204;
      }
    }

    # WebSocket（语音链路）
    location /api/v1/bot/ws/audio {
      proxy_pass http://easyflow_api;
      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 3600s;
      proxy_send_timeout 3600s;
    }

    # SSE/HTTP API
    location /api/ {
      proxy_pass http://easyflow_api;
      proxy_http_version 1.1;
      proxy_set_header Connection "";
      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 3600s;
      proxy_send_timeout 3600s;
      proxy_buffering off;
      proxy_cache off;
    }

    location /userCenter/ {
      proxy_pass http://easyflow_api;
      proxy_http_version 1.1;
      proxy_set_header Connection "";
      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 3600s;
      proxy_send_timeout 3600s;
      proxy_buffering off;
      proxy_cache off;
    }

    error_page 500 502 503 504 /50x.html;

    location = /50x.html {
        root /usr/share/nginx/html;
    }
  }
}