Calculate fees

1 files changed, 110 insertions, 35 deletions

diff --git a/public/js/wallet.coffee b/public/js/wallet.coffee
index 5f549ec9..c6b405e5 100644
--- a/public/js/wallet.coffee
+++ b/public/js/wallet.coffee
@@ -57,7 +57,7 @@ $(->
     else
       $(this).val(parseFloat($(this).val()).toFixed(2))
 
-    if $(this).val() > $(this).attr('max')
+    if parseFloat($(this).val()) > parseFloat($(this).attr('max'))
       $(this).val($(this).attr('max'))
   )
 )
@@ -89,15 +89,23 @@ getExchangeRate = ->
   )
 
 createWallet = ->
-  if isBip32(g.user.pubkey)
-    data = 
-      name: g.user.username
-      extended_public_key: g.user.pubkey
-      subchain_indexes: [0,1]
-    $.post("#{g.api}/wallets/hd?token=#{g.token}", JSON.stringify(data)).always(getBalance)
-  else
-    $('#balance').html(99)
-    $('#amount').val(99)
+  $.get("#{g.api}/wallets?token=#{g.token}", (data) ->
+    if g.user.username in data.wallet_names
+      getBalance()
+    else
+      if isBip32(g.user.pubkey)
+        data = 
+          name: g.user.username
+          extended_public_key: g.user.pubkey
+          subchain_indexes: [0,1]
+
+        $.post("#{g.api}/wallets/hd?token=#{g.token}", JSON.stringify(data)).always(getBalance)
+      else
+        # TODO implement this properly
+        $('#balance').html(99)
+        $('#amount').val(99)
+  )
+
 
 getBalance = ->
   $.get("#{g.api}/addrs/#{g.user.username}/balance?token=#{g.token}&omitWalletAddresses=true", (data) ->
@@ -105,42 +113,100 @@ getBalance = ->
     g.balance = (balance * multiplier() / 100000000).toFixed(precision())
     fiat = (g.balance * g.exchange / multiplier()).toFixed(2)
     $('#balance').html(g.balance)
-    $('#balance').parent().fadeIn()
+    $('.wallet').fadeIn()
     $('#fiat').html("#{fiat} #{g.user.currency}")
-    $('#amount').val(g.balance)
     $('#amount').attr('max', g.balance)
   )
 
 sendTransaction = ->
-  master = bitcoin.HDNode.fromBase58(g.user.privkey)
-  if typeof master.keyPair.d isnt 'undefined'
-    fee = 12500
-    if $('#currency_toggle').html() is g.user.unit
-      amount = $('#amount').val()
+  dialog = new BootstrapDialog(
+    title: '<h3>Confirm Transaction</h3>'
+    message: '<i class="fa fa-spinner fa-spin"></i> Calculating fee...</i>'
+    buttons: [
+      label: 'Send'
+      cssClass: 'btn-primary'
+    ,
+      label: ' Cancel'
+      cssClass: 'btn-default'
+      action: (dialogItself) -> dialogItself.close()
+      icon: 'glyphicon glyphicon-ban-circle'
+    ]
+  ).open()
+
+  params = 
+    inputs: [{wallet_name: g.user.username, wallet_token: g.token}]
+    outputs: [{addresses: [$('#recipient').val()], value: 1}]
+    preference: $('#priority').val()
+
+  $.post("#{g.api}/txs/new?token=#{g.token}", JSON.stringify(params)).done((data) ->
+    if data.errors
+      dialog.getModalBody().html('')
+      for e in data.errors
+        dialog.getModalBody().append("<div class='alert alert-danger'>#{e}</div>")
+
+    master = bitcoin.HDNode.fromBase58(g.user.privkey)
+
+    if typeof master.keyPair.d is 'undefined'
+      $('#withdraw .alert-danger').fadeIn().delay(500).fadeOut()
     else
-      amount = convertedAmount()
+      if $('#currency_toggle').html() is g.user.unit
+        amount = $('#amount').val()
+      else
+        amount = convertedAmount()
+
+      value = parseInt(amount * 100000000 / multiplier())
 
-    value = parseInt(amount * 100000000 / multiplier())
+      params.fees = data.tx.fees
+      params.outputs[0].value = value
+      if value > parseFloat(g.balance).toSatoshis() - params.fees 
+        params.outputs[0].value -= params.fees
 
-    req = 
-      inputs: [{wallet_name: g.user.username, wallet_token: g.token}],
-      outputs: [{addresses: [$('#recipient').val()], value: value}]
 
-    $.post("#{g.api}/txs/new?token=#{g.token}", JSON.stringify(req)).then((tx) ->
-      tx.pubkeys = []
-      tx.signatures = tx.tosign.map((tosign, i) ->
-        path = tx.tx.inputs[i].hd_path.split('/')
-        key = master.derive(path[1]).derive(path[2])
-        tx.pubkeys.push(key.getPublicKeyBuffer().toString('hex'))
-        return key.sign(new buffer.Buffer(tosign, "hex")).toDER().toString("hex")
-      )
+      $.post("#{g.api}/txs/new?token=#{g.token}", JSON.stringify(params)).done((data) ->
+        data.pubkeys = []
+        data.signatures = data.tosign.map((tosign, i) ->
+          path = data.tx.inputs[i].hd_path.split('/')
+          key = master.derive(path[1]).derive(path[2])
+          data.pubkeys.push(key.getPublicKeyBuffer().toString('hex'))
+          return key.sign(new buffer.Buffer(tosign, "hex")).toDER().toString("hex")
+        )
 
-      $.post("#{g.api}/txs/send?token=#{g.token}", JSON.stringify(tx)).then((finaltx) ->
-        $('#withdraw .alert-success').fadeIn().delay(500).fadeOut()
-      )
+        amount = data.tx.outputs[0].value
+        fee = data.tx.fees
+        total = amount
+        if value > parseFloat(g.balance).toSatoshis() - data.tx.fees 
+          total += fee
+
+        if data.tx.outputs.length is 2
+          $('#change').show()
+          change = data.tx.outputs[1].value
+          $('#transaction .change').html("#{(change.toBTC())} #{g.user.unit} (#{change.toFiat()} #{g.user.currency})")
+
+        $('#transaction .amount').html("#{(amount.toBTC())} #{g.user.unit} (#{amount.toFiat()} #{g.user.currency})")
+        $('#transaction .fee').html("#{(fee.toBTC())} #{g.user.unit} (#{fee.toFiat()} #{g.user.currency})")
+        $('#transaction .total').html("#{(total.toBTC())} #{g.user.unit} (#{total.toFiat()} #{g.user.currency})")
+        $('#transaction .address').html(data.tx.outputs[0].addresses[0])
+
+        dialog.getModalBody().html($('#transaction').html())
+        dialog.getModal().find('.btn-primary').click(-> 
+          $.post("#{g.api}/txs/send?token=#{g.token}", JSON.stringify(data)).then((finaltx) ->
+            $('#withdraw .alert-success').fadeIn().delay(500).fadeOut()
+          )
+        )
+    ).fail((data) ->
+      displayErrors(data.responseJSON, dialog)
     )
-  else
-    $('#withdraw .alert-danger').fadeIn().delay(500).fadeOut()
+  ).fail((data) ->
+    displayErrors(data.responseJSON, dialog)
+  )
+
+displayErrors = (data, dialog) ->
+  if data.errors
+    dialog.getModalBody().html('')
+    dialog.getModal().find('.btn-primary').hide()
+    for e in data.errors
+      dialog.getModalBody().append("<div class='alert alert-danger'>#{e.error}</div>")
+
 
 convertedAmount = ->
   amount = parseFloat($('#amount').val() * multiplier() / g.exchange).toFixed(precision())
@@ -176,3 +242,12 @@ multiplier = ->
 
 precision = ->
   9 - multiplier().toString().length
+
+Number.prototype.toBTC = ->
+  (this / 100000000 * multiplier()).toFixed(precision())
+
+Number.prototype.toFiat = ->
+  (this * g.exchange / 100000000).toFixed(2)
+
+Number.prototype.toSatoshis = ->
+  parseInt(this * 100000000 / multiplier())