From b4037fd1a0d115dee40b7d20eec31c3875e4fa39 Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam.soltys@pwgsc-tpsgc.gc.ca>
Date: Sun, 17 Aug 2014 23:25:02 -0700
Subject: Let users configure BTC units

---
 public/js/calculator.coffee | 50 +++++++++++++++++++++++++--------------------
 public/js/report.coffee     |  4 ++--
 public/js/setup.coffee      |  7 ++++++-
 src/app.coffee              |  1 -
 views/users/edit.html       | 11 +++++-----
 views/users/show.html       |  2 +-
 6 files changed, 43 insertions(+), 32 deletions(-)

diff --git a/public/js/calculator.coffee b/public/js/calculator.coffee
index c22d05ee..fde28652 100644
--- a/public/js/calculator.coffee
+++ b/public/js/calculator.coffee
@@ -17,23 +17,22 @@ $(->
   g.errors = []
   g.amount_requested = 0
   g.tip = 1
+  g.unit = 'BTC'
 
-  if g.user
-    $.ajax(
-      url: g.user + '.json', 
-      dataType: 'json',
-      success: (data) ->
-        if data?
-          g.title = data.title
-          g.address = data.address 
-          g.currency = data.currency
-          g.symbol = data.symbol
-          g.commission = data.commission 
-          g.logo = data.logo 
-        setup()
-    )
-  else 
-    setup()
+  $.ajax(
+    url: g.user + '.json', 
+    dataType: 'json',
+    success: (data) ->
+      if data?
+        g.title = data.title
+        g.address = data.address 
+        g.currency = data.currency
+        g.symbol = data.symbol
+        g.commission = data.commission 
+        g.logo = data.logo 
+        g.unit = data.unit
+      setup()
+  )
 
   $('#tip button').click(->
     value = $(this).html().slice(0, -1)
@@ -54,8 +53,6 @@ $(->
   )
 )
 
-activateTip = (p) ->
-
 setup = ->
   g.address or= ''
   g.commission or= 0
@@ -73,6 +70,7 @@ setup = ->
   $('#address').html("#{address} <a href='http://blockchain.info/address/#{address}' target='_blank'><img src='/assets/img/blockchain.png' /></a>")
   $('#symbol').html(g.symbol + " bid")
   $('#currency').html(g.currency)
+  $('#unit').html(g.unit)
   $('#received').hide()
 
   setupSocket()
@@ -144,16 +142,16 @@ setupSocket = ->
           $('#payment').hide()
           $('#received').fadeIn('slow')
           $('#chaching')[0].play()
-            
 
       if data.method and data.method is 'recvtx' and data.params.length is 1
         msg = JSON.stringify { jsonrpc: "1.0", id: "coinos", method: 'decoderawtransaction', params: [data.params[0]] }
         g.btcd.send(msg)
 
 updateTotal = ->
+  precision = 9 - multiplier().toString().length
   amount = parseFloat($('#amount').val() * g.tip)
-  total = (amount / g.exchange).toFixed(8)
-  g.amount_requested = (amount / g.exchange).toFixed(8)
+  total = (amount * multiplier() / g.exchange).toFixed(precision)
+  g.amount_requested = total
 
   unless $.isNumeric(total)
     total = ''
@@ -162,7 +160,6 @@ updateTotal = ->
   $('#qr').html('')
   new QRCode('qr', "bitcoin:#{g.address}?amount=#{g.amount_requested.toString()}")
 
-
 fail = (msg) ->
   g.errors.push(msg)
   g.errors = g.errors.uniq()
@@ -182,3 +179,12 @@ Array::uniq = ->
   output = {}
   output[@[key]] = @[key] for key in [0...@length]
   value for key, value of output
+
+multiplier = ->
+  switch g.unit
+    when 'BTC' then 1
+    when 'mBTC' then 1000
+    when 'µBTC' then 1000000
+    when 'satoshis' then 100000000
+
+
diff --git a/public/js/report.coffee b/public/js/report.coffee
index 90b7c0aa..99a0df25 100644
--- a/public/js/report.coffee
+++ b/public/js/report.coffee
@@ -64,7 +64,7 @@ display = (transactions) ->
         <tr>
           <td>#{moment(this.date, 'YYYY-MM-DD h:mm:ss').format('MMM D h:mma')}</td>
           <td>#{exchange.toFixed(2)}</td>
-          <td>#{received.toFixed(5)}</td>
+          <td>#{received.toFixed(8)}</td>
           <td>#{amount.toFixed(2)}</td>
         </tr>
       """)
@@ -74,7 +74,7 @@ display = (transactions) ->
     $('table.report tbody td:nth-child(3)').each(->
       btc += parseFloat($(this).html())
     )
-    $('#btc').html(btc.toFixed(5))
+    $('#btc').html(btc.toFixed(8))
 
     cad = 0
     $('table.report tbody td:nth-child(4)').each(->
diff --git a/public/js/setup.coffee b/public/js/setup.coffee
index 53660449..ce6b3963 100644
--- a/public/js/setup.coffee
+++ b/public/js/setup.coffee
@@ -40,6 +40,11 @@ $(->
 
     ).change()
 
+    units = ['BTC', 'mBTC', '&micro;BTC', 'satoshis']
+    $.each(units, (i, v) ->
+      $('#unit').append("<option value='#{v}'>#{v}</option>")
+    )
+
     $('#title').blur(->
       if $(this).val() == ''
         $(this).parent().addClass('has-error')
@@ -74,10 +79,10 @@ $(->
       $('#setup').attr('action', "/#{user}").attr('method', 'post')
       $.getJSON("/#{user}.json", (data) ->
         $('#title').val(data.title)
-        $('#logo').val(data.logo)
         $('#address').val(data.address)
         $("#symbol option[value='#{data.symbol}']").attr('selected', 'selected')
         $('#commission').val(data.commission)
+        $('#unit').val(data.unit)
         $('#setup').fadeIn()
       )
   )
diff --git a/src/app.coffee b/src/app.coffee
index dec4205a..75b83560 100644
--- a/src/app.coffee
+++ b/src/app.coffee
@@ -16,7 +16,6 @@ session = require('express-session')
 RedisStore = require('connect-redis')(session)
 sessionStore = new RedisStore(require('./redis').host, ttl: 172800)
 
-
 app = express()
 app.enable('trust proxy')
 app.engine('html', require('hogan-express'))
diff --git a/views/users/edit.html b/views/users/edit.html
index 9037d83d..703ef9c0 100644
--- a/views/users/edit.html
+++ b/views/users/edit.html
@@ -12,11 +12,6 @@
     <input type="text" id="title" name="title" class="form-control" />
   </div>
 
-  <div class="form-group">
-    <label for="logo">Logo <small>(optional URL)</small>:</label>
-    <input type="text" id="logo" name="logo" class="form-control" />
-  </div>
-
   <div class="form-group">
     <label for="address">Bitcoin Address:</label>
     <input type="text" id="address" name="address" class="form-control" />
@@ -33,6 +28,12 @@
     <select id="symbol" name="symbol" class="form-control">
     </select>
   </div>
+
+  <div class="form-group">
+    <label for="unit">Bitcoin Display Units:</label>
+    <select id="unit" name="unit" class="form-control">
+    </select>
+  </div>
   
   <div class="form-group">
     <label for="commission">Commission/Discount <small>(optional %)</small>:</label>
diff --git a/views/users/show.html b/views/users/show.html
index 8ecce37a..bbf214b4 100644
--- a/views/users/show.html
+++ b/views/users/show.html
@@ -36,7 +36,7 @@
     <br />
 
     <div id="payment">
-      <p>Please send <strong id="total">0.0</strong> BTC to</p>
+      <p>Please send <strong id="total">0.0</strong> <span id="unit"></span> to</p>
       <div id="qr"></div>
       <p id="address"></p>
     </div>
-- 
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