Adds three levels of dynamic fees

src/js/services/feeService.js

@@ -0,0 +1,88 @@
+'use strict';
+
+angular.module('copayApp.services').factory('feeService', function($log, lodash, profileService, configService, gettext) {
+  var root = {};
+
+  root.feeStaticOpts = [{
+    name: gettext('Priority'),
+    level: 'priority',
+    feePerKB: 10000,
+    nbBlocks: 1
+  }, {
+    name: gettext('Normal'),
+    level: 'normal',
+    feePerKB: 5000,
+    nbBlocks: 4
+  }, {
+    name: gettext('Economy'),
+    level: 'economy',
+    feePerKB: 1000,
+    nbBlocks: 12
+  }];
+
+  root.getCurrentFeeValue = function(cb) { 
+    var fc = profileService.focusedClient;
+    var config = configService.getSync().wallet.settings;
+    var feeLevel = config.feeLevel || 'priority';
+    // static fee
+    var fee = 10000;
+    fc.getFeeLevels(fc.credentials.network, function(err, levels) {
+      if (err) {
+        return cb({message: 'Error getting dynamic fee'})
+      }
+      else {
+        for (var i = 0; i < 3; i++) {
+          if (levels[i].level == feeLevel) {
+            fee = levels[i].feePerKB;
+          }
+        }
+        $log.debug('Dynamic fee for ' + feeLevel + ': ' + fee);
+        return cb(null, fee); 
+      }
+    });
+  }; 
+
+  var checkCompatibility = function(config) {
+    if (config.feeName && !config.feeLevel) {
+      // Migrate to new dynamic fee values
+      var level = config.feeName.toLowerCase();
+      if (level == 'emergency') level = 'priority';
+
+      var opts = {
+        wallet: {
+          settings: {
+            feeLevel: level
+          }
+        }
+      };
+      configService.set(opts, function(err) {
+        if (err) $log.debug(err);
+      });
+    }
+  };
+
+  root.getFeeLevels = function(cb) { 
+    var fc = profileService.focusedClient;
+    var config = configService.getSync().wallet.settings;
+    var unitName = config.unitName;
+    checkCompatibility(config);
+
+    fc.getFeeLevels('livenet', function(errLivenet, levelsLivenet) {
+      fc.getFeeLevels('testnet', function(errTestnet, levelsTestnet) {
+      if (errLivenet || errTestnet) $log.error('Error getting dynamic fee');
+
+      for (var i = 0; i < 3; i++) {
+        levelsLivenet[i]['feePerKBUnit'] = profileService.formatAmount(levelsLivenet[i].feePerKB) + ' ' + unitName;
+        levelsTestnet[i]['feePerKBUnit'] = profileService.formatAmount(levelsTestnet[i].feePerKB) + ' ' + unitName;
+      }
+
+      return cb({
+        'livenet': levelsLivenet,
+        'testnet': levelsTestnet
+      });
+      });
+    });
+  };
+
+  return root;
+});