worker_processes auto;

error_log /dev/stdout info;

events {
    worker_connections 1024;
}

http {
    resolver 127.0.0.11 ipv6=off;

    lua_package_path "/router/?.lua;;";

    log_format nginxlog_json escape=json '{ "timestamp": "$time_iso8601", '
        '"remote_addr": "$remote_addr", '
        '"body_bytes_sent": $body_bytes_sent, '
        '"request_time": $request_time, '
        '"response_status": $status, '
        '"request": "$request", '
        '"request_method": "$request_method", '
        '"host": "$host",'
        '"upstream_addr": "$upstream_addr",'
        '"http_x_forwarded_for": "$http_x_forwarded_for",'
        '"http_referrer": "$http_referer", '
        '"http_user_agent": "$http_user_agent", '
        '"http_version": "$server_protocol"}';
    access_log /dev/stdout nginxlog_json;

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

    init_by_lua_block {
        router = require("router")
    }

    server {
        listen 8081;

        location ~ "/(?<stream>[^/]*)/index.m3u8$" {
            set $target "";

            access_by_lua_block {
                ngx.var.target = router.fetch_streams(ngx.var.stream)
            }

            proxy_pass http://$target;
        }

        location ~ "/(?<stream>[^/]*)/(?<path>.+)\.ts$" {
            set $target "";

            access_by_lua_block {
                ngx.var.target = router.fetch_streams(ngx.var.stream)
            }

            proxy_pass http://$target;
        }

        location / {
            return 404;
        }
    }
}