From 27cb93c08c5ac360a6c3427628a7a6f8259dfa9e Mon Sep 17 00:00:00 2001
From: Wei-Ning Huang <w@cobinhood.com>
Date: Fri, 21 Sep 2018 15:06:38 +0800
Subject: dex: make geth buildable and update interface skeleton

---
 dex/backend.go | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)

(limited to 'dex/backend.go')

diff --git a/dex/backend.go b/dex/backend.go
index 73a84c139..e374bb70f 100644
--- a/dex/backend.go
+++ b/dex/backend.go
@@ -17,6 +17,113 @@
 
 package dex
 
+import (
+	"math/big"
+	"sync"
+
+	dexCore "github.com/dexon-foundation/dexon-consensus-core/core"
+	"github.com/dexon-foundation/dexon-consensus-core/core/blockdb"
+	ethCrypto "github.com/dexon-foundation/dexon-consensus-core/crypto/eth"
+
+	"github.com/ethereum/go-ethereum/accounts"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/event"
+	"github.com/ethereum/go-ethereum/internal/ethapi"
+	"github.com/ethereum/go-ethereum/node"
+	"github.com/ethereum/go-ethereum/p2p"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/ethereum/go-ethereum/rpc"
+)
+
 // Dexon implementes the DEXON fullnode service.
 type Dexon struct {
+	config      *eth.Config
+	chainConfig *params.ChainConfig
+
+	// Channel for shutting down the service
+	shutdownChan chan bool // Channel for shutting down the Ethereum
+	txPool       *core.TxPool
+	blockchain   *core.BlockChain
+
+	// DB interfaces
+	chainDb ethdb.Database // Block chain database
+
+	eventMux       *event.TypeMux
+	engine         consensus.Engine
+	accountManager *accounts.Manager
+
+	bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
+	bloomIndexer  *core.ChainIndexer             // Bloom indexer operating during block imports
+
+	gasPrice  *big.Int
+	etherbase common.Address
+
+	// Dexon consensus.
+	app        *DexconApp
+	governance *DexconGovernance
+	network    *DexconNetwork
+	blockdb    blockdb.BlockDatabase
+	consensus  *dexCore.Consensus
+
+	networkID     uint64
+	netRPCService *ethapi.PublicNetAPI
+
+	lock sync.RWMutex // Protects the variadic fields (e.g. gas price and etherbase)
+}
+
+func New(ctx *node.ServiceContext, config *eth.Config) (*Dexon, error) {
+	// Consensus.
+	db, err := blockdb.NewLevelDBBackedBlockDB("main.blockdb")
+	if err != nil {
+		panic(err)
+	}
+	app := NewDexconApp(nil)
+	gov := NewDexconGovernance()
+	network := NewDexconNetwork()
+
+	// TODO(w): replace this with node key.
+	privKey, err := ethCrypto.NewPrivateKey()
+	if err != nil {
+		panic(err)
+	}
+	consensus := dexCore.NewConsensus(
+		app, gov, db, network, privKey, ethCrypto.SigToPub)
+
+	dex := &Dexon{
+		config:         config,
+		eventMux:       ctx.EventMux,
+		accountManager: ctx.AccountManager,
+		shutdownChan:   make(chan bool),
+		networkID:      config.NetworkId,
+		gasPrice:       config.MinerGasPrice,
+		etherbase:      config.Etherbase,
+		bloomRequests:  make(chan chan *bloombits.Retrieval),
+		app:            app,
+		governance:     gov,
+		network:        network,
+		blockdb:        db,
+		consensus:      consensus,
+	}
+	return dex, nil
+}
+
+func (s *Dexon) Protocols() []p2p.Protocol {
+	return nil
+}
+
+func (s *Dexon) APIs() []rpc.API {
+	return nil
+}
+
+func (s *Dexon) Start(server *p2p.Server) error {
+	return nil
+}
+
+func (s *Dexon) Stop() error {
+	return nil
 }
-- 
cgit