package explorer

import (
	"bytes"
	"math/big"
	"strconv"
	"testing"

	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/rlp"
	"github.com/harmony-one/bls/ffi/go/bls"

	blockfactory "github.com/harmony-one/harmony/block/factory"
	"github.com/harmony-one/harmony/core/types"
	"github.com/harmony-one/harmony/shard"

	"github.com/stretchr/testify/assert"
)

// Test for GetBlockInfoKey
func TestGetBlockInfoKey(t *testing.T) {
	assert.Equal(t, GetBlockInfoKey(3), "bi_3", "error")
}

// Test for GetAddressKey
func TestGetAddressKey(t *testing.T) {
	assert.Equal(t, GetAddressKey("abcd"), "ad_abcd", "error")
}

// Test for GetBlockKey
func TestGetBlockKey(t *testing.T) {
	assert.Equal(t, GetBlockKey(3), "b_3", "error")
}

// Test for GetTXKey
func TestGetTXKey(t *testing.T) {
	assert.Equal(t, GetTXKey("abcd"), "tx_abcd", "error")
}

// Test for GetCommitteeKey
func TestGetCommitteeKey(t *testing.T) {
	assert.Equal(t, GetCommitteeKey(uint32(0), uint64(0)), "cp_0_0", "error")
}

func TestInit(t *testing.T) {
	ins := GetStorageInstance("1.1.1.1", "3333", true)
	if err := ins.GetDB().Put([]byte{1}, []byte{2}); err != nil {
		t.Fatal("(*LDBDatabase).Put failed:", err)
	}
	value, err := ins.GetDB().Get([]byte{1})
	assert.Equal(t, bytes.Compare(value, []byte{2}), 0, "value should be []byte{2}")
	assert.Nil(t, err, "error should be nil")
}

func TestDump(t *testing.T) {
	tx1 := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), 0, big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
	tx2 := types.NewTransaction(2, common.BytesToAddress([]byte{0x22}), 0, big.NewInt(222), 2222, big.NewInt(22222), []byte{0x22, 0x22, 0x22})
	tx3 := types.NewTransaction(3, common.BytesToAddress([]byte{0x33}), 0, big.NewInt(333), 3333, big.NewInt(33333), []byte{0x33, 0x33, 0x33})
	txs := []*types.Transaction{tx1, tx2, tx3}

	block := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(314)).Header(), txs, nil, nil, nil)
	ins := GetStorageInstance("1.1.1.1", "3333", true)
	ins.Dump(block, uint64(1))
	db := ins.GetDB()

	res, err := db.Get([]byte(BlockHeightKey))
	if err == nil {
		toInt, err := strconv.Atoi(string(res))
		assert.Equal(t, toInt, 1, "error")
		assert.Nil(t, err, "error")
	} else {
		t.Error("Error")
	}

	data, err := db.Get([]byte(GetBlockKey(1)))
	assert.Nil(t, err, "should be nil")
	blockData, err := rlp.EncodeToBytes(block)
	assert.Nil(t, err, "should be nil")
	assert.Equal(t, bytes.Compare(data, blockData), 0, "should be equal")
}

func TestDumpCommittee(t *testing.T) {
	blsPubKey1 := new(bls.PublicKey)
	blsPubKey2 := new(bls.PublicKey)
	err := blsPubKey1.DeserializeHexStr("1c1fb28d2de96e82c3d9b4917eb54412517e2763112a3164862a6ed627ac62e87ce274bb4ea36e6a61fb66a15c263a06")
	assert.Nil(t, err, "should be nil")
	err = blsPubKey2.DeserializeHexStr("02c8ff0b88f313717bc3a627d2f8bb172ba3ad3bb9ba3ecb8eed4b7c878653d3d4faf769876c528b73f343967f74a917")
	assert.Nil(t, err, "should be nil")
	BlsPublicKey1 := new(shard.BlsPublicKey)
	BlsPublicKey2 := new(shard.BlsPublicKey)
	BlsPublicKey1.FromLibBLSPublicKey(blsPubKey1)
	BlsPublicKey2.FromLibBLSPublicKey(blsPubKey2)
	nodeID1 := shard.NodeID{EcdsaAddress: common.HexToAddress("52789f18a342da8023cc401e5d2b14a6b710fba9"), BlsPublicKey: *BlsPublicKey1}
	nodeID2 := shard.NodeID{EcdsaAddress: common.HexToAddress("7c41e0668b551f4f902cfaec05b5bdca68b124ce"), BlsPublicKey: *BlsPublicKey2}
	nodeIDList := []shard.NodeID{nodeID1, nodeID2}
	committee := shard.Committee{ShardID: uint32(0), NodeList: nodeIDList}
	shardID := uint32(0)
	epoch := uint64(0)
	ins := GetStorageInstance("1.1.1.1", "3333", true)
	err = ins.DumpCommittee(shardID, epoch, committee)
	if err != nil {
		assert.Nilf(t, err, "should be nil, but %s", err.Error())
	}
	db := ins.GetDB()

	data, err := db.Get([]byte(GetCommitteeKey(shardID, epoch)))
	assert.Nil(t, err, "should be nil")
	committeeData, err := rlp.EncodeToBytes(committee)
	assert.Nil(t, err, "should be nil")
	assert.Equal(t, bytes.Compare(data, committeeData), 0, "should be equal")
}

func TestUpdateAddressStorage(t *testing.T) {
	tx1 := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), 0, big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
	tx2 := types.NewTransaction(2, common.BytesToAddress([]byte{0x22}), 0, big.NewInt(222), 2222, big.NewInt(22222), []byte{0x22, 0x22, 0x22})
	tx3 := types.NewTransaction(3, common.BytesToAddress([]byte{0x33}), 0, big.NewInt(333), 3333, big.NewInt(33333), []byte{0x33, 0x33, 0x33})
	txs := []*types.Transaction{tx1, tx2, tx3}

	block := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(314)).Header(), txs, nil, nil, nil)
	ins := GetStorageInstance("1.1.1.1", "3333", true)
	ins.Dump(block, uint64(1))
	db := ins.GetDB()

	res, err := db.Get([]byte(BlockHeightKey))
	if err == nil {
		toInt, err := strconv.Atoi(string(res))
		assert.Equal(t, toInt, 1, "error")
		assert.Nil(t, err, "error")
	} else {
		t.Error("Error")
	}

	data, err := db.Get([]byte(GetBlockKey(1)))
	assert.Nil(t, err, "should be nil")
	blockData, err := rlp.EncodeToBytes(block)
	assert.Nil(t, err, "should be nil")
	assert.Equal(t, bytes.Compare(data, blockData), 0, "should be equal")
}