managing wallets

manageWallet.js

$('document').ready(function () {

    var web3 = new Web3();
    var global_keystore;
    function setWeb3Provider(keystore) {
        var web3Provider = new HookedWeb3Provider({
            host: "https://mainnet.infura.io/-.....",
            transaction_signer: keystore
        });
        web3.setProvider(web3Provider);
    }

    function newAddresses(password, numAddr) {

        if (password == '') {
            password = prompt('Enter password to retrieve addresses', 'Password');
        }


        global_keystore.keyFromPassword(password, function (err, pwDerivedKey) {
            global_keystore.generateNewAddress(pwDerivedKey, numAddr);
            var addresses = global_keystore.getAddresses();

            console.log(addresses)
            for (var i = 0; i < addresses.length; ++i) {
                console.log(addresses[i])

            }
            getBalances();
        });

    }
    function getBalances() {

        var addresses = global_keystore.getAddresses();

        async.map(addresses, web3.eth.getBalance, function (err, balances) {

            async.map(addresses, web3.eth.getTransactionCount, function (err, nonces) {


                for (var i = 0; i < addresses.length; ++i) {
                    console.log(addresses[i] + ' (Bal: ' + (balances[i] / 1.0e18) + ' ETH, Nonce: ' + nonces[i] + ')');
                    // document.getElementById('addr').innerHTML += '<div>' + addresses[i] + ' (Bal: ' + (balances[i] / 1.0e18) + ' ETH, Nonce: ' + nonces[i] + ')' + '</div>'
                }
            })
        })
    }
    function setSeed() {
        var password = prompt('Enter Password to encrypt your seed', 'Password');
        lightwallet.keystore.createVault({
            password: password,
            seedPhrase: document.getElementById('seed').value,
            //random salt 
            hdPathString: "m/0'/0'/0'"
        }, function (err, ks) {
            global_keystore = ks
            document.getElementById('seed').value = ''

            newAddresses(password);
            setWeb3Provider(global_keystore);

            getBalances();
        })
    }

    /** New Wallet **/
    newWallet('password');

    function newWallet(password) {

        var randomSeed = lightwallet.keystore.generateRandomSeed(randomString(300));

        console.log(randomSeed);

        var infoString = 'Your new wallet seed is: "' + randomSeed +
                '". Please write it down on paper or in a password manager, you will need it to access your wallet. Do not let anyone see this seed or they can take your Ether. ' +
                'Please enter a password to encrypt your seed while in the browser.'


        lightwallet.keystore.createVault({
            password: password,
            seedPhrase: randomSeed,
            //random salt 
            hdPathString: "m/0'/0'/0'"
        }, function (err, ks) {
            console.log(err, ks)
            global_keystore = ks

            newAddresses(password);

            setWeb3Provider(global_keystore);

            getBalances();

        })

    }

    function showSeed() {
        var password = prompt('Enter password to show your seed. Do not let anyone else see your seed.', 'Password');
        global_keystore.keyFromPassword(password, function (err, pwDerivedKey) {
            var seed = global_keystore.getSeed(pwDerivedKey);
            alert('Your seed is: "' + seed + '". Please write it down.');
        });
    }
    function sendEth(fromAddr, toAddr, valueEth) {
        var value = parseFloat(valueEth) * 1.0e18
        var gasPrice = 18000000000
        var gas = 50000
        web3.eth.sendTransaction({from: fromAddr, to: toAddr, value: value, gasPrice: gasPrice, gas: gas}, function (err, txhash) {
            console.log('error: ' + err)
            console.log('txhash: ' + txhash)
        })
    }
    function functionCall() {
        var fromAddr = document.getElementById('functionCaller').value
        var contractAddr = document.getElementById('contractAddr').value
        var abi = JSON.parse(document.getElementById('contractAbi').value)
        var contract = web3.eth.contract(abi).at(contractAddr)
        var functionName = document.getElementById('functionName').value
        var args = JSON.parse('[' + document.getElementById('functionArgs').value + ']')
        var valueEth = document.getElementById('sendValueAmount').value
        var value = parseFloat(valueEth) * 1.0e18
        var gasPrice = 50000000000
        var gas = 4541592
        args.push({from: fromAddr, value: value, gasPrice: gasPrice, gas: gas})
        var callback = function (err, txhash) {
            console.log('error: ' + err)
            console.log('txhash: ' + txhash)
        }
        args.push(callback)
        contract[functionName].apply(this, args)
    }



    function randomString(length) {
        var text = "";
        var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        for (var i = 0; i < length; i++) {
            text += possible.charAt(Math.floor(Math.random() * possible.length));
        }
        return text;
    }


});