package containers

import (
	"fmt"
	"github.com/coroot/coroot-node-agent/ebpftracer/l7"
	"github.com/coroot/coroot-node-agent/tracing"
	"inet.af/netaddr"
)

func (c *Container) getTrace(traceId uint64) (*tracing.Trace, bool) {
	trace, ok := c.traceMap[traceId]
	return trace, ok
}

func (c *Container) InitTrace(traceId uint64, r *l7.RequestData) error {
	method, path, hostIp, port := l7.ParseHttpHost(r.Payload)
	fmt.Println("InitTrace..........", method, path, hostIp, port, c)
	ip, err := netaddr.ParseIP(hostIp)
	if err != nil {
		return fmt.Errorf("host ip error")
	}
	addr := netaddr.IPPortFrom(ip, port)
	trace := tracing.NewTrace(string(c.id), addr)
	if trace == nil {
		return fmt.Errorf("OTEL_EXPORTER_OTLP_TRACES_ENDPOINT is null")
	}
	c.traceMap[traceId] = trace

	trace.TraceStart(method, path, r.Status, r.Duration)
	return nil
}

func (c *Container) onL7RequestApm(pid uint32, fd uint64, timestamp uint64, r *l7.RequestData) map[netaddr.IP]string {
	c.lock.Lock()
	defer c.lock.Unlock()
	if r.Protocol == l7.ProtocolDNS {
		return c.onDNSRequest(r)
	}
	fmt.Println("-----EventTypeL7Request------3...pid=", pid)
	if r.Protocol == l7.ProtocolTrace {
		//fmt.Println("r.TraceStart:", r.TraceStart)
		//fmt.Println("r.TraceEnd:", r.TraceEnd)
		fmt.Println("-----r.Protocol == l7.ProtocolTrace------")
		if r.TraceStart == 1 {
			//fmt.Println("====ProtocolTrace start1====", r.TraceId)
			err := c.InitTrace(r.TraceId, r) // TODO: 核心方法
			if err != nil {
				fmt.Println(err) // TODO: InitTrace报错，还继续吗？
			}
			//fmt.Println("init r.TraceId:", r.TraceId)
			//trace, _ := c.getTrace(r.TraceId)
			//fmt.Println("init traceId", trace)
			//stats.observe(r.Status.Http(), "", r.Duration)
			//method, path := l7.ParseHttp(r.Payload)
			//fmt.Println("r.Payload:", string(r.Payload))
			//fmt.Println("method:", method)
			//fmt.Println("path:", path)
			//fmt.Println("====ProtocolTrace start2====")
			fmt.Println("------trace start-------")
			return nil
		}
		if r.TraceEnd == 1 {
			//fmt.Println("r:", r)
			//fmt.Println("r.Payload:", string(r.Payload))
			//fmt.Println("====ProtocolTrace end2====")
			trace, ok := c.getTrace(r.TraceId)
			if ok {
				trace.TraceEnd(r)
				delete(c.traceMap, r.TraceId)
			}
			fmt.Println("------trace end-------", trace)
			//fmt.Println("====ProtocolTrace end1====", ok, r.TraceId)
			return nil
		}
	}
	conn := c.connectionsByPidFd[PidFd{Pid: pid, Fd: fd}]
	fmt.Println("----------conn----------", conn, pid, fd)
	if conn == nil {
		return nil
	}
	if timestamp != 0 && conn.Timestamp != timestamp {
		return nil
	}
	stats := c.l7Stats.get(r.Protocol, conn.Dest, conn.ActualDest)
	trace := tracing.NewTrace(string(c.id), conn.ActualDest)
	switch r.Protocol {
	case l7.ProtocolHTTP:
		fmt.Println("-----EventTypeL7Request------4----ProtocolHTTP-----")
		stats.observe(r.Status.Http(), "", r.Duration)
		method, path, hostIp, port := l7.ParseHttpHost(r.Payload)
		//trace.HttpRequest(method, path, r.Status, r.Duration)

		apmTrace, ok := c.getTrace(r.TraceId)
		if ok {
			apmTrace.HttpTraceRequest(method, path, hostIp, port, r.Status, r.Duration)
		}

	case l7.ProtocolHTTP2:
		fmt.Println("-----EventTypeL7Request------4-----ProtocolHTTP2----")
		if conn.http2Parser == nil {
			conn.http2Parser = l7.NewHttp2Parser()
		}
		requests := conn.http2Parser.Parse(r.Method, r.Payload, uint64(r.Duration))
		for _, req := range requests {
			stats.observe(req.Status.Http(), "", req.Duration)
			trace.Http2Request(req.Method, req.Path, req.Scheme, req.Status, req.Duration)
		}
	case l7.ProtocolPostgres:
		if r.Method != l7.MethodStatementClose {
			stats.observe(r.Status.String(), "", r.Duration)
		}
		if conn.postgresParser == nil {
			conn.postgresParser = l7.NewPostgresParser()
		}
		query := conn.postgresParser.Parse(r.Payload)
		trace.PostgresQuery(query, r.Status.Error(), r.Duration)
	case l7.ProtocolMysql:
		//fmt.Println("mysql mysql")
		//fmt.Println(conn)
		if r.Method != l7.MethodStatementClose {
			stats.observe(r.Status.String(), "", r.Duration)
		}
		if conn.mysqlParser == nil {
			conn.mysqlParser = l7.NewMysqlParser()
		}
		query := conn.mysqlParser.Parse(r.Payload, r.StatementId)
		//trace.MysqlQuery(query, r.Status.Error(), r.Duration)

		apmTrace, ok := c.getTrace(r.TraceId)
		//fmt.Println("mysql r.TraceId:", r.TraceId)
		//fmt.Println("ok:", ok)
		//fmt.Println("traceMap:", len(c.traceMap))
		if ok {
			apmTrace.MysqlTraceQuery(query, r.Status.Error(), r.Duration, conn.ActualDest)
		}
	case l7.ProtocolMemcached:
		stats.observe(r.Status.String(), "", r.Duration)
		cmd, items := l7.ParseMemcached(r.Payload)
		trace.MemcachedQuery(cmd, items, r.Status.Error(), r.Duration)
	case l7.ProtocolRedis:
		fmt.Println("redis redis")
		stats.observe(r.Status.String(), "", r.Duration)
		cmd, args := l7.ParseRedis(r.Payload)
		fmt.Println("cmd", cmd)
		fmt.Println("args", args)
		apmTrace, ok := c.getTrace(r.TraceId)
		fmt.Println("redis r.TraceId:", r.TraceId)
		fmt.Println("ok:", ok)
		fmt.Println("traceMap:", len(c.traceMap))
		if ok {
			apmTrace.RedisTraceQuery(cmd, args, r.Status.Error(), r.Duration)
		}
		//trace.RedisQuery(cmd, args, r.Status.Error(), r.Duration)
	case l7.ProtocolMongo:
		stats.observe(r.Status.String(), "", r.Duration)
		query := l7.ParseMongo(r.Payload)
		trace.MongoQuery(query, r.Status.Error(), r.Duration)
	case l7.ProtocolKafka, l7.ProtocolCassandra:
		stats.observe(r.Status.String(), "", r.Duration)
	case l7.ProtocolRabbitmq, l7.ProtocolNats:
		stats.observe(r.Status.String(), r.Method.String(), 0)
	}
	return nil
}