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<!doctype>
<html>
<title>JevCoin</title>
<head>
<script type="text/javascript" src="../ext/bignumber.min.js"></script>
<script type="text/javascript" src="../ext/ethereum.js/dist/ethereum.js"></script>
</head>
<body>

<h1>JevCoin</h1>
<div>
    <strong>Balance</strong>
    <span id="balance"></strong>
</div>

<div>
    <span class="amount">Amount:</span>
    <input type="text" id="address" style="width:200px">
    <input type="text" id="amount" style="width:200px">
    <button onclick="transact()">Send</button>
</div>

<table width="100%" id="table">
</table>

</body>

<script type="text/javascript">
    var web3 = require('web3');
    var eth = web3.eth;

    web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
    var desc =  [{
        "name": "balance(address)",
        "inputs": [{
            "name": "who",
            "type": "address"
        }],
        "const": true,
        "outputs": [{
            "name": "value",
            "type": "uint256"
        }]
    }, {
        "name": "send(address,uint256)",
        "inputs": [{
            "name": "to",
            "type": "address"
        }, {
            "name": "value",
            "type": "uint256"
        }],
        "outputs": []
    }];

    var address = web3.db.get("jevcoin", "address");
    if( address.length == 0 ) {
        var code = "0x60056011565b60ae8060356000396000f35b64174876e800600033600160a060020a031660005260205260406000208190555056006001600060e060020a600035048063d0679d34146022578063e3d670d714603457005b602e6004356024356047565b60006000f35b603d600435608d565b8060005260206000f35b80600083600160a060020a0316600052602052604060002090815401908190555080600033600160a060020a031660005260205260406000209081540390819055505050565b6000600082600160a060020a0316600052602052604060002054905091905056";
        address = web3.eth.transact({
            data: code,
            gasprice: "1000000000000000",
            gas: "10000",
        });
        web3.db.put("jevcoin", "address", address);
    }

    var contract = web3.eth.contract(address, desc);

    function reflesh() {
        document.querySelector("#balance").innerHTML = contract.call().balance(eth.coinbase);

        var table = document.querySelector("#table");
        table.innerHTML = ""; // clear

        var storage = eth.storageAt(address);
        for( var item in storage ) {
            table.innerHTML += "<tr><td>"+item+"</td><td>"+web3.toDecimal(storage[item])+"</td></tr>";
        }
    }

    function transact() {
        var to = document.querySelector("#address").value;
        if( to.length == 0 ) {
            to = "0x4205b06c2cfa0e30359edcab94543266cb6fa1d3";
        } else {
            to = "0x"+to;
        }

        var value = parseInt( document.querySelector("#amount").value );

        contract.transact({gas: "10000", gasprice: eth.gasPrice}).send( to, value );
    }

    reflesh();
</script>

</html>