// Copyright 2015 Tony Bai.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

package cmpp_test

import (
	"bytes"
	"io"
	"net"
	"testing"
	"time"

	"github.com/bigwhite/gocmpp"
)

var data = []byte{
	0x00, 0x00, 0x00, 0xe1, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x74, 0x65, 0x73, 0x74, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x02, 0x31, 0x33, 0x35, 0x30, 0x30, 0x30, 0x30, 0x32, 0x36, 0x39, 0x36, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x39, 0x30, 0x30, 0x30, 0x30, 0x31, 0x30, 0x32, 0x31,
	0x30, 0x00, 0x00, 0x00, 0x00, 0x31, 0x35, 0x31, 0x31, 0x30, 0x35, 0x31, 0x33, 0x31, 0x35, 0x35,
	0x35, 0x31, 0x30, 0x31, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x39, 0x30, 0x30, 0x30, 0x30, 0x31, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x31, 0x33, 0x35,
	0x30, 0x30, 0x30, 0x30, 0x32, 0x36, 0x39, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x6d,
	0x4b, 0x8b, 0xd5, 0x00, 0x67, 0x00, 0x6f, 0x00, 0x63, 0x00, 0x6d, 0x00, 0x70, 0x00, 0x70, 0x00,
	0x20, 0x00, 0x73, 0x00, 0x75, 0x00, 0x62, 0x00, 0x6d, 0x00, 0x69, 0x00, 0x74, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00,
}

type fakeConn struct {
	net.Conn
	reader *bytes.Buffer
}

func (c *fakeConn) Read(b []byte) (n int, err error) {
	n, err = c.reader.Read(b)
	if err == io.EOF {
		c.reader = bytes.NewBuffer(data)
		n, err = c.reader.Read(b)
	}
	return
}

func (c *fakeConn) SetReadDeadline(t time.Time) error {
	return nil
}

func BenchmarkRecvAndUnpackPkt(b *testing.B) {
	c := &cmpp.Conn{
		Conn: &fakeConn{
			reader: bytes.NewBuffer(data),
		},
		State: cmpp.CONN_AUTHOK,
		Typ:   cmpp.V30,
	}

	for i := 0; i < b.N; i++ {
		c.RecvAndUnpackPkt(0)
	}
}
