// Copyright (C) 2018 Zilliqa

//

// This file is part of Zilliqa-Javascript-Library.

//

// This program is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program. If not, see <https://www.gnu.org/licenses/>.

const { BN, Long, bytes, units } = require('@zilliqa-js/util');

const { Zilliqa } = require('@zilliqa-js/zilliqa');

const {

toBech32Address,

getAddressFromPrivateKey,

} = require('@zilliqa-js/crypto');

const zilliqa = new Zilliqa('https://dev-api.zilliqa.com');

// These are set by the core protocol, and may vary per-chain.

// You can manually pack the bytes according to chain id and msg version.

// For more information: https://apidocs.zilliqa.com/?shell#getnetworkid

const chainId = 333; // chainId of the developer testnet

const msgVersion = 1; // current msgVersion

const VERSION = bytes.pack(chainId, msgVersion);

// Populate the wallet with an account

const privateKey =

'deb5c896228f8515146aa16f94a558ba14e52d8496b4b267b2d59cd9036f39a6';

zilliqa.wallet.addByPrivateKey(privateKey);

const address = getAddressFromPrivateKey(privateKey);

console.log(`My account address is: ${address}`);

console.log(`My account bech32 address is: ${toBech32Address(address)}`);

async function testBlockchain() {

try {

// Get Balance

const balance = await zilliqa.blockchain.getBalance(address);

// Get Minimum Gas Price from blockchain

const minGasPrice = await zilliqa.blockchain.getMinimumGasPrice();

// Account balance (See note 1)

console.log(`Your account balance is:`);

console.log(balance.result);

console.log(`Current Minimum Gas Price: ${minGasPrice.result}`);

const myGasPrice = units.toQa('2000', units.Units.Li); // Gas Price that will be used by all transactions

console.log(`My Gas Price ${myGasPrice.toString()}`);

const isGasSufficient = myGasPrice.gte(new BN(minGasPrice.result)); // Checks if your gas price is less than the minimum gas price

console.log(`Is the gas price sufficient? ${isGasSufficient}`);

// Deploy a contract

console.log(`Deploying a new contract....`);

const code = `scilla_version 0

(* HelloWorld contract *)

import ListUtils

(***************************************************)

(* Associated library *)

(***************************************************)

library HelloWorld

let not_owner_code = Int32 1

let set_hello_code = Int32 2

(***************************************************)

(* The contract definition *)

(***************************************************)

contract HelloWorld

(owner: ByStr20)

field welcome_msg : String = ""

transition setHello (msg : String)

is_owner = builtin eq owner _sender;

match is_owner with

| False =>

e = {_eventname : "setHello()"; code : not_owner_code};

event e

| True =>

welcome_msg := msg;

e = {_eventname : "setHello()"; code : set_hello_code};

event e

end

end

transition getHello ()

r <- welcome_msg;

e = {_eventname: "getHello()"; msg: r};

event e

end`;

const init = [

// this parameter is mandatory for all init arrays

{

vname: '_scilla_version',

type: 'Uint32',

value: '0',

},

{

vname: 'owner',

type: 'ByStr20',

value: `${address}`,

},

];

const contract = zilliqa.contracts.new(code, init);

// Deploy the contract.

// Also notice here we have a default function parameter named toDs as mentioned above.

// A contract can be deployed at either the shard or at the DS. Always set this value to false.

const [deployTx, deployedContract] = await contract.deployWithoutConfirm(

{

version: VERSION,

gasPrice: myGasPrice,

gasLimit: Long.fromNumber(10000),

},

false,

);

// process confirm

console.log(`The transaction id is:`, deployTx.id);

console.log(`Waiting transaction be confirmed`);

const confirmedTxn = await deployTx.confirm(deployTx.id);

console.log(`The transaction status is:`);

console.log(confirmedTxn.receipt);

if (confirmedTxn.receipt.success === true) {

console.log(`Contract address is: ${deployedContract.address}`);

}

} catch (err) {

console.log(err);

}

}

testBlockchain();