From 4b1f63563659cfedd305974132af650e438d3c58 Mon Sep 17 00:00:00 2001
From: AnilChinchawale <anil24593@gmail.com>
Date: Sun, 2 Dec 2018 11:16:17 +0530
Subject: [PATCH] add randomize(smc) reader

---
 contracts/randomizeReader.go | 58 ++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 contracts/randomizeReader.go

diff --git a/contracts/randomizeReader.go b/contracts/randomizeReader.go
new file mode 100644
index 0000000000..08934db6a1
--- /dev/null
+++ b/contracts/randomizeReader.go
@@ -0,0 +1,58 @@
+package contracts
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	randomizeContract "github.com/ethereum/go-ethereum/contracts/randomize/contract"
+	"github.com/ethereum/go-ethereum/core/state"
+)
+
+var (
+	slotRandomizeMapping = map[string]uint64{
+		"randomSecret":  0,
+		"randomOpening": 1,
+	}
+	ParsedRandomizeABI, _ = abi.JSON(strings.NewReader(randomizeContract.XDCRandomizeABI))
+)
+
+func GetSecret(statedb *state.StateDB, parsed abi.ABI, address common.Address) [][]byte {
+	start := time.Now()
+	fmt.Printf("--------GetSecret---------\n")
+
+	slot := slotRandomizeMapping["randomSecret"]
+	locSecret := getLocMappingAtKey(address.Hash(), slot)
+	arrLength := statedb.GetState(common.HexToAddress(common.RandomizeSMC), common.BigToHash(locSecret))
+	fmt.Printf("Secret length: %v\n", arrLength.Hex())
+	keys := []common.Hash{}
+	for i := uint64(0); i < arrLength.Big().Uint64(); i++ {
+		key := getLocDynamicArrAtElement(common.BigToHash(locSecret), i, 1)
+		keys = append(keys, key)
+	}
+	rets := [][]byte{}
+	for _, key := range keys {
+		ret := statedb.GetState(common.HexToAddress(common.RandomizeSMC), key)
+		rets = append(rets, ret.Bytes())
+		fmt.Printf("ret hex: %v - ret byte: %v\n", ret.Hex(), ret.Bytes())
+	}
+	elapsed := time.Since(start)
+
+	fmt.Printf("Execution time: %s\n", elapsed)
+	return rets
+}
+
+func GetOpening(statedb *state.StateDB, parsed abi.ABI, address common.Address) []byte {
+	start := time.Now()
+	fmt.Printf("--------GetOpening---------\n")
+
+	slot := slotRandomizeMapping["randomOpening"]
+	locOpening := getLocMappingAtKey(address.Hash(), slot)
+	ret := statedb.GetState(common.HexToAddress(common.RandomizeSMC), common.BigToHash(locOpening))
+	fmt.Printf("ret hex: %v - ret byte: %v\n", ret.Hex(), ret.Bytes())
+	elapsed := time.Since(start)
+	fmt.Printf("Execution time: %s\n", elapsed)
+	return ret.Bytes()
+}
\ No newline at end of file