1 files changed, 310 insertions, 0 deletions
diff --git a/static/js/calculator.js b/static/js/calculator.js
new file mode 100644
index 00000000..6e71b56a
--- /dev/null
+++ b/static/js/calculator.js
@@ -0,0 +1,310 @@
+(function() {
+  var ADDRESS_FAIL, API_URL, EXCHANGE_FAIL, SOCKET_FAIL, TEST_URL, clear, fail, fetchExchangeRate, g, getAddress, listen, logTransaction, multiplier, setup, updateTotal;
+
+  EXCHANGE_FAIL = "Problem fetching exchange rate";
+
+  SOCKET_FAIL = "Problem connecting to payment server, notifications may not appear";
+
+  ADDRESS_FAIL = "Invalid address";
+
+  API_URL = "wss://socket.blockcypher.com/v1/btc/main";
+
+  TEST_URL = "wss://socket.blockcypher.com/v1/btc/test3";
+
+  g = typeof exports !== "undefined" && exports !== null ? exports : this;
+
+  g.errors = [];
+
+  g.amount_requested = 0;
+
+  g.amount = 0..toFixed(2);
+
+  g.tip = 1;
+
+  g.transactions = [];
+
+  $(function() {
+    $.ajax({
+      url: $('#user').val() + '.json',
+      dataType: 'json',
+      success: function(data) {
+        g.user = data;
+        return setup();
+      }
+    });
+    $('button').click(function(e) {
+      return e.preventDefault();
+    });
+    $('.numpad .btn').off('click').click(function(e) {
+      var m, n;
+      e.preventDefault();
+      m = $(this).html();
+      n = parseFloat($('.amount').html());
+      if (m === 'C') {
+        g.amount = 0..toFixed(2);
+        updateTotal();
+        return;
+      }
+      if (n > 10000000) {
+        return;
+      }
+      if (m === '00') {
+        n = 100 * n;
+      } else {
+        n = 10 * n + parseFloat(m) / 100;
+      }
+      g.amount = n.toFixed(2);
+      return updateTotal();
+    });
+    $('.numpad .btn:last').off('click').click(function(e) {
+      e.preventDefault();
+      g.amount = (Math.floor(100 * (parseFloat($('.amount').html()) / 10)) / 100).toFixed(2);
+      return updateTotal();
+    });
+    $('.tippad .btn').off('click').click(function(e) {
+      var text, value;
+      e.preventDefault();
+      text = $(this).html();
+      if (text === 'No Tip') {
+        value = 0;
+      } else {
+        value = text.slice(1, -1);
+      }
+      $(this).addClass('active');
+      $(this).siblings().removeClass('active');
+      g.tip = 1 + (parseFloat(value) / 100);
+      return updateTotal();
+    });
+    $('#received').click(function() {
+      return window.location = "/" + g.user.username + "/report";
+    });
+    return $('#slide').click(function() {
+      $('#controls').slideToggle();
+      return $(this).find('i').toggleClass('fa-sort-up').toggleClass('fa-sort-down');
+    });
+  });
+
+  setup = function() {
+    var base, base1, base2, base3, base4, ext, src;
+    (base = g.user).address || (base.address = '');
+    (base1 = g.user).commission || (base1.commission = 0);
+    (base2 = g.user).currency || (base2.currency = 'CAD');
+    (base3 = g.user).symbol || (base3.symbol = 'quadrigacx');
+    (base4 = g.user).unit || (base4.unit = 'BTC');
+    if (g.user.title) {
+      $('#title').html("<a href='/" + g.user.username + "/edit'>" + g.user.title + "</a>").show();
+    }
+    if (g.user.logo) {
+      ext = g.user.logo.substr(g.user.logo.length - 3);
+      src = "/img/logos/" + g.user.username + "." + ext;
+      $('#logo').attr('src', src).show();
+    }
+    getAddress();
+    if (g.user.address[0] === 'm') {
+      API_URL = TEST_URL;
+    }
+    $('.symbol').html(g.user.currency);
+    $('.currency').html(g.user.currency);
+    $('.unit').html(g.user.unit);
+    $('#received').hide();
+    fetchExchangeRate();
+    return listen();
+  };
+
+  fetchExchangeRate = function() {
+    $.ajax({
+      url: "ticker?currency=" + g.user.currency + "&symbol=" + g.user.symbol + "&type=bid",
+      success: function(exchange) {
+        if (exchange != null) {
+          clear(EXCHANGE_FAIL);
+        } else {
+          fail(EXCHANGE_FAIL);
+          return;
+        }
+        g.exchange = (exchange - exchange * g.user.commission * 0.01).toFixed(2);
+        $('#exchange').html(g.exchange);
+        updateTotal();
+        if (!g.setupComplete) {
+          return g.setupComplete = true;
+        }
+      },
+      error: function() {
+        return fail(EXCHANGE_FAIL);
+      }
+    });
+    return setTimeout(fetchExchangeRate, 900000);
+  };
+
+  updateTotal = function() {
+    var precision, size, subtotal, time, total;
+    precision = 9 - multiplier().toString().length;
+    subtotal = parseFloat(g.amount * g.tip).toFixed(2);
+    total = (subtotal * multiplier() / g.exchange).toFixed(precision);
+    g.amount_requested = (subtotal / g.exchange).toFixed(8);
+    if (!$.isNumeric(total)) {
+      total = '';
+    }
+    $('#received').hide();
+    $('#payment').fadeIn('slow');
+    $('.tip').html((subtotal - g.amount).toFixed(2));
+    $('.subtotal').html(subtotal.toString());
+    $('.amount').html(g.amount);
+    $('.exchange').html(g.exchange);
+    $('.symbol').html(g.user.symbol);
+    if (g.user.commission < 0) {
+      $('.commission').html("+" + (Math.abs(g.user.commission)) + "%");
+    }
+    $('#total').html(total.toString());
+    size = 300;
+    $('#qr').css('height', size);
+    time = 0;
+    if (g.timeout) {
+      time = 10;
+    }
+    clearTimeout(g.timeout);
+    return g.timeout = setTimeout(function() {
+      $('#qr').html('');
+      return new QRCode('qr', {
+        text: "bitcoin:" + g.user.address + "?amount=" + (g.amount_requested.toString()),
+        width: size,
+        height: size
+      });
+    }, time);
+  };
+
+  listen = function() {
+    g.attempts++;
+    if (g.blockchain && g.blockchain.readyState === 1) {
+      return setTimeout(listen, 12000);
+    } else {
+      if (g.attempts > 3) {
+        fail(SOCKET_FAIL);
+      }
+      g.blockchain = new WebSocket(API_URL);
+      g.blockchain.onopen = function() {
+        if (g.blockchain.readyState === 1) {
+          g.attempts = 0;
+          clear(SOCKET_FAIL);
+          return g.blockchain.send('{"event":"unconfirmed-tx", "address":"' + g.user.address + '"}');
+        } else {
+          return setTimeout(g.blockchain.onopen, 12000 * g.attempts);
+        }
+      };
+      g.blockchain.onerror = function() {
+        fail(SOCKET_FAIL);
+        g.blockchain.close();
+        delete g.blockchain;
+        return listen();
+      };
+      g.blockchain.onclose = function() {
+        delete g.blockchain;
+        return listen();
+      };
+      return g.blockchain.onmessage = function(e) {
+        var amount, j, len, output, ref, tx;
+        tx = JSON.parse(e.data);
+        amount = 0;
+        if (tx.hash === g.last_seen) {
+          return;
+        }
+        g.last_seen = tx.hash;
+        ref = tx.outputs;
+        for (j = 0, len = ref.length; j < len; j++) {
+          output = ref[j];
+          if (output.addresses[0] === g.user.address) {
+            amount += output.value / 100000000;
+          }
+        }
+        return logTransaction(tx.hash, amount);
+      };
+    }
+  };
+
+  logTransaction = function(txid, amount) {
+    if ($('#received').is(":hidden") && amount >= g.amount_requested) {
+      $('#payment').hide();
+      $('#received').fadeIn('slow');
+      $('#success')[0].play();
+      g.user.index++;
+      if (g.transactions.indexOf(txid) === -1) {
+        g.transactions.push(txid);
+        $.post("/" + g.user.username + "/transactions", {
+          txid: txid,
+          address: g.user.address,
+          date: moment().format("YYYY-MM-DD HH:mm:ss"),
+          received: amount,
+          exchange: g.exchange,
+          tip: g.tip
+        });
+      }
+      return getAddress();
+    }
+  };
+
+  getAddress = function() {
+    var child, error, master;
+    try {
+      bitcoin.address.fromBase58Check(g.user.pubkey);
+      g.user.address = g.user.pubkey;
+    } catch (error) {
+      master = bitcoin.HDNode.fromBase58(g.user.pubkey);
+      child = master.derive(0).derive(g.user.index);
+      g.user.address = child.getAddress().toString();
+      if (g.blockchain) {
+        g.blockchain.close();
+      }
+      listen();
+    }
+    return $('#address').html("<a href='https://blockchain.info/address/" + g.user.address + "'>" + g.user.address + "</a>");
+  };
+
+  fail = function(msg) {
+    g.errors.push(msg);
+    g.errors = g.errors.uniq();
+    return $('#error').show().html(g.errors.toString());
+  };
+
+  clear = function(msg) {
+    var i;
+    i = g.errors.indexOf(msg);
+    if (i >= 0) {
+      g.errors.splice(i, 1);
+    }
+    if (g.errors.length > 0) {
+      return $('#error').show().html(g.errors.toString());
+    } else {
+      $('#error').hide();
+      return $('#calculator').fadeIn('slow');
+    }
+  };
+
+  Array.prototype.uniq = function() {
+    var j, key, output, ref, results, value;
+    output = {};
+    for (key = j = 0, ref = this.length; 0 <= ref ? j < ref : j > ref; key = 0 <= ref ? ++j : --j) {
+      output[this[key]] = this[key];
+    }
+    results = [];
+    for (key in output) {
+      value = output[key];
+      results.push(value);
+    }
+    return results;
+  };
+
+  multiplier = function() {
+    switch (g.user.unit) {
+      case 'BTC':
+        return 1;
+      case 'mBTC':
+        return 1000;
+      case 'µBTC':
+        return 1000000;
+      case 'bits':
+        return 1000000;
+      case 'satoshis':
+        return 100000000;
+    }
+  };
+
+}).call(this);