github.com/sixexorg/magnetic-ring@v0.0.0-20191119090307-31705a21e419/store/mainchain/states/league_state.go (about)

     1  package states
     2  
     3  import (
     4  	"io"
     5  	"math/big"
     6  
     7  	"github.com/sixexorg/magnetic-ring/common/sink"
     8  
     9  	"encoding/binary"
    10  
    11  	"io/ioutil"
    12  
    13  	"bytes"
    14  
    15  	"sort"
    16  
    17  	"fmt"
    18  
    19  	"github.com/sixexorg/magnetic-ring/common"
    20  	"github.com/sixexorg/magnetic-ring/errors"
    21  	mcom "github.com/sixexorg/magnetic-ring/store/mainchain/common"
    22  )
    23  
    24  type LeagueState struct {
    25  	Address common.Address
    26  	hash    common.Hash
    27  	Symbol  common.Symbol
    28  	Height  uint64
    29  	MinBox  uint64         // not stored in the db
    30  	Creator common.Address // not stored in the db
    31  	Rate    uint32         // not stored in the db
    32  	Private bool
    33  	Data    *League
    34  }
    35  
    36  type League struct {
    37  	Nonce      uint64
    38  	Name       common.Hash
    39  	FrozenBox  *big.Int
    40  	MemberRoot common.Hash
    41  }
    42  
    43  func (this *LeagueState) IsPrivate() bool {
    44  	return this.Private
    45  }
    46  
    47  type LeagueStates []*LeagueState
    48  
    49  func (s LeagueStates) Len() int           { return len(s) }
    50  func (s LeagueStates) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
    51  func (s LeagueStates) Less(i, j int) bool { return s[i].Hash().String() < s[j].Hash().String() }
    52  func (s LeagueStates) GetHashRoot() common.Hash {
    53  	sort.Sort(s)
    54  	hashes := make([]common.Hash, 0, s.Len())
    55  	for _, v := range s {
    56  		hashes = append(hashes, v.Hash())
    57  	}
    58  	return common.ComputeMerkleRoot(hashes)
    59  }
    60  
    61  type LeagueAccountStatus byte
    62  
    63  const (
    64  	LAS_Apply  LeagueAccountStatus = 0x01
    65  	LAS_Normal LeagueAccountStatus = 0x02
    66  	LAS_Exit   LeagueAccountStatus = 0x03
    67  )
    68  
    69  func (this *LeagueState) Hash() common.Hash {
    70  	buff := new(bytes.Buffer)
    71  	buff.Write(this.GetKey())
    72  	this.Serialize(buff)
    73  	hash, _ := common.ParseHashFromBytes(common.Sha256(buff.Bytes()))
    74  	this.hash = hash
    75  	return hash
    76  }
    77  
    78  func (this *LeagueState) Serialize(w io.Writer) error {
    79  	sk := sink.NewZeroCopySink(nil)
    80  	sk.WriteUint64(this.Data.Nonce)
    81  	sk.WriteHash(this.Data.Name)
    82  	c1, _ := sink.BigIntToComplex(this.Data.FrozenBox)
    83  	sk.WriteComplex(c1)
    84  	sk.WriteHash(this.Data.MemberRoot)
    85  	w.Write(sk.Bytes())
    86  	return nil
    87  }
    88  
    89  func (this *LeagueState) Deserialize(r io.Reader) error {
    90  	buff, err := ioutil.ReadAll(r)
    91  	if err != nil {
    92  		return err
    93  	}
    94  	var eof bool
    95  	source := sink.NewZeroCopySource(buff)
    96  	_, eof = source.NextByte()
    97  	this.Address, eof = source.NextAddress()
    98  	this.Height, eof = source.NextUint64()
    99  	this.Data = &League{}
   100  	this.Data.Nonce, eof = source.NextUint64()
   101  	this.Data.Name, eof = source.NextHash()
   102  	c1, eof := source.NextComplex()
   103  	this.Data.FrozenBox, err = c1.ComplexToBigInt()
   104  	if err != nil {
   105  		return err
   106  	}
   107  	this.Data.MemberRoot, eof = source.NextHash()
   108  	if eof {
   109  		return errors.ERR_TXRAW_EOF
   110  	}
   111  	return nil
   112  }
   113  func (this *LeagueState) GetKey() []byte {
   114  	buff := make([]byte, 1+common.AddrLength+8)
   115  	buff[0] = byte(mcom.ST_LEAGUE)
   116  	copy(buff[1:common.AddrLength+1], this.Address[:])
   117  	binary.LittleEndian.PutUint64(buff[common.AddrLength+1:], this.Height)
   118  	return buff
   119  }
   120  
   121  func (this *LeagueState) AddMetaBox(num *big.Int) {
   122  	fmt.Println("☀️ AddMetaBox ", this.Data.FrozenBox.Uint64(), num.Uint64())
   123  	this.Data.FrozenBox.Add(this.Data.FrozenBox, num)
   124  }