package socket

import (
	"context"
	"log"

	"blazing/common/data/entity"

	"github.com/panjf2000/gnet/v2"
	"github.com/panjf2000/gnet/v2/pkg/logging"
)

func (s *Server) Boot() error {
	err := gnet.Run(s, s.addr,
		gnet.WithMulticore(true),
		gnet.WithSocketRecvBuffer(s.bufferSize))
	if err != nil {
		return err
	}

	return nil
}

func (s *Server) Stop() error {
	_ = s.eng.Stop(context.Background())
	s.workerPool.Release()

	return nil
}

func (s *Server) OnBoot(eng gnet.Engine) gnet.Action {
	s.eng = eng

	logging.Infof("syslog server is listening on %s\n", s.addr)

	return gnet.None
}

func (s *Server) OnTraffic(conn gnet.Conn) (action gnet.Action) {

	conn.SetContext(entity.NewClientData()) //注入data
	if s.network == "tcp" {
		return s.handleTcp(conn)
	}

	return gnet.None
}

func (s *Server) handleTcp(conn gnet.Conn) (action gnet.Action) {

	for {
		if !s.discorse {
			handle(conn)
		}
		data, err := s.codec.Decode(conn)
		if err != nil {
			break
		}

		//client := conn.RemoteAddr().String()
		_ = s.workerPool.Submit(func() { //TODO 这里可能存在顺序执行问题,待修复
			s.parser(conn, data)
		})

		return gnet.None
	}

	if conn.InboundBuffered() > 0 {
		if err := conn.Wake(nil); err != nil { // wake up the connection manually to avoid missing the leftover data
			logging.Errorf("failed to wake up the connection, %v", err)
			return gnet.Close
		}
	}

	return gnet.None

}

func (s *Server) parser(c gnet.Conn, line []byte) {
	//todo 这里待实现注入player实体
	s.handler.Handle(c, line)
}
func (s *Server) Start() {

	err := gnet.Run(s, s.network+"://"+s.addr, gnet.WithMulticore(s.multicore))
	logging.Infof("server exits with error: %v", err)
}

// CROSS_DOMAIN 定义跨域策略文件内容
const CROSS_DOMAIN = "<?xml version=\"1.0\"?><!DOCTYPE cross-domain-policy><cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" /></cross-domain-policy>\x00"

// TEXT 定义跨域请求的文本格式
const TEXT = "<policy-file-request/>\x00"

func handle(c gnet.Conn) {
	clientdata := c.Context().(*entity.ClientData)
	if clientdata.IsCrossDomain {
		return

	}
	// 读取数据并检查是否为跨域请求
	data, err := c.Peek(len(TEXT))
	if err != nil {
		log.Printf("Error reading cross-domain request: %v", err)
		return
	}

	if string(data) == TEXT { //判断是否是跨域请求
		log.Printf("Received cross-domain request from %s", c.RemoteAddr())
		// 处理跨域请求
		c.Write([]byte(CROSS_DOMAIN))
		c.Discard(len(TEXT))

		clientdata.IsCrossDomain = true
		return
	}

	//return
}