Mercado Libre: First steps

src/js/controllers/buyMercadoLibre.js

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+'use strict';
+
+angular.module('copayApp.controllers').controller('buyMercadoLibreController', function($scope, $log, $state, $timeout, $filter, $ionicHistory, lodash, mercadoLibreService, popupService, profileService, ongoingProcess, configService, walletService, payproService, bwcError, externalLinkService, platformInfo) {
+
+  var amount;
+  var currency;
+  $scope.isCordova = platformInfo.isCordova;
+
+  $scope.openExternalLink = function(url) {
+    externalLinkService.open(url);
+  };
+
+  var showErrorAndBack = function(msg, err) {
+    $scope.sendStatus = '';
+    err = err && err.errors ? err.errors[0].message : err;
+    popupService.showAlert(msg, err, function() {
+      $ionicHistory.goBack();
+    });
+  };
+
+  var showError = function(msg, err) {
+    $scope.sendStatus = '';
+    err = err && err.errors ? err.errors[0].message : (err || '');
+    popupService.showAlert(msg, err);
+  };
+
+  var publishAndSign = function(wallet, txp, onSendStatusChange, cb) {
+    if (!wallet.canSign() && !wallet.isPrivKeyExternal()) {
+      var err = 'No signing proposal: No private key';
+      $log.info(err);
+      return cb(err);
+    }
+
+    walletService.publishAndSign(wallet, txp, function(err, txp) {
+      if (err) return cb(err);
+      return cb(null, txp);
+    }, onSendStatusChange);
+  };
+
+  var statusChangeHandler = function(processName, showName, isOn) {
+    $log.debug('statusChangeHandler: ', processName, showName, isOn);
+    if (processName == 'buyingGiftCard' && !isOn) {
+      $scope.sendStatus = 'success';
+      $timeout(function() {
+        $scope.$digest();
+      }, 100);
+    } else if (showName) {
+      $scope.sendStatus = showName;
+    }
+  };
+
+  var checkTransaction = lodash.throttle(function(count, dataSrc) {
+    mercadoLibreService.createGiftCard(dataSrc, function(err, giftCard) {
+console.log('[buyMercadoLibre.js:53]',giftCard); //TODO
+      $log.debug("creating gift card " + count);
+      if (err) {
+        ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+        giftCard = {};
+        giftCard.status = 'FAILURE';
+        showError('Error creating gift card', err);
+      }
+
+      if (giftCard.status == 'PENDING' && count < 3) {
+        $log.debug("Waiting for payment confirmation");
+        checkTransaction(count + 1, dataSrc);
+        return;
+      }
+
+      var now = moment().unix() * 1000;
+
+      var newData = giftCard;
+      newData['invoiceId'] = dataSrc.invoiceId;
+      newData['accessKey'] = dataSrc.accessKey;
+      newData['invoiceUrl'] = dataSrc.invoiceUrl;
+      newData['amount'] = dataSrc.amount;
+      newData['currency'] = dataSrc.currency;
+      newData['date'] = dataSrc.invoiceTime || now;
+      newData['uuid'] = dataSrc.uuid;
+
+      if (newData.status == 'expired') {
+        mercadoLibreService.savePendingGiftCard(newData, {
+          remove: true
+        }, function(err) {
+          $log.error(err);
+          ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+          showError('Invoice expired');
+          return;
+        });
+      }
+
+      mercadoLibreService.savePendingGiftCard(newData, null, function(err) {
+        ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+        $log.debug("Saving new gift card with status: " + newData.status);
+        $scope.mlGiftCard = newData;
+      });
+    });
+  }, 8000, {
+    'leading': true
+  });
+
+  $scope.$on("$ionicView.beforeEnter", function(event, data) {
+    amount = data.stateParams.amount;
+    currency = data.stateParams.currency;
+
+    /* TODO
+    if (amount > 2000 || amount < 50) {
+      showErrorAndBack('Purchase amount must be a value between 50 and 2000');
+      return;
+    }
+    */
+
+    $scope.amountUnitStr = $filter('formatFiatAmount')(amount) + ' ' + currency;
+
+    $scope.network = mercadoLibreService.getNetwork();
+    $scope.wallets = profileService.getWallets({
+      onlyComplete: true,
+      network: $scope.network,
+      hasFunds: true
+    });
+    if (lodash.isEmpty($scope.wallets)) {
+      showErrorAndBack('No wallets with funds');
+      return;
+    }
+    $scope.wallet = $scope.wallets[0]; // Default first wallet
+  });
+
+  $scope.buyConfirm = function() {
+
+    var message = 'Buy gift card for ' + amount + ' ' + currency;
+    var okText = 'Confirm';
+    var cancelText = 'Cancel';
+    popupService.showConfirm(null, message, okText, cancelText, function(ok) {
+      if (!ok) return;
+
+      var config = configService.getSync();
+      var configWallet = config.wallet;
+      var walletSettings = configWallet.settings;
+      // Selected WalletID as UUID
+      var uuid = $scope.wallet.id;
+      var dataSrc = {
+        currency: currency,
+        amount: amount,
+        uuid: uuid
+      };
+
+      ongoingProcess.set('buyingGiftCard', true, statusChangeHandler);
+      mercadoLibreService.createBitPayInvoice(dataSrc, function(err, dataInvoice) {
+        if (err) {
+          ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+
+          if (err && err.message && err.message.match(/suspended/i)) {
+            showError('Service not available', 'Mercadolibre Gift Card Service is not available at this moment. Please try back later.');
+          } else {
+            showError('Could not access Gift Card Service', err);
+          };
+
+          return;
+        }
+
+        var accessKey = dataInvoice ? dataInvoice.accessKey : null;
+
+        if (!accessKey) {
+          ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+          showError('No access key defined');
+          return;
+        }
+
+        mercadoLibreService.getBitPayInvoice(dataInvoice.invoiceId, function(err, invoice) {
+          if (err) {
+            ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+            showError('Error getting BitPay invoice', err);
+            return;
+          }
+
+          var payProUrl = (invoice && invoice.paymentUrls) ? invoice.paymentUrls.BIP73 : null;
+
+          if (!payProUrl) {
+            ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+            showError('Error fetching invoice');
+            return;
+          }
+
+          payproService.getPayProDetails(payProUrl, function(err, payProDetails) {
+            if (err) {
+              ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+              showError('Error fetching payment info', bwcError.msg(err));
+              return;
+            }
+
+            var outputs = [];
+            var toAddress = payProDetails.toAddress;
+            var amountSat = payProDetails.amount;
+            var comment = amount + ' ' + currency + ' Mercadolibre Gift Card';
+
+            outputs.push({
+              'toAddress': toAddress,
+              'amount': amountSat,
+              'message': comment
+            });
+
+            var txp = {
+              toAddress: toAddress,
+              amount: amountSat,
+              outputs: outputs,
+              message: comment,
+              payProUrl: payProUrl,
+              excludeUnconfirmedUtxos: configWallet.spendUnconfirmed ? false : true,
+              feeLevel: walletSettings.feeLevel || 'normal'
+            };
+
+            walletService.createTx($scope.wallet, txp, function(err, ctxp) {
+              if (err) {
+                ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+                showError('Could not create transaction', bwcError.msg(err));
+                return;
+              }
+              publishAndSign($scope.wallet, ctxp, function() {}, function(err, txSent) {
+                if (err) {
+                  ongoingProcess.set('buyingGiftCard', false, statusChangeHandler);
+                  showError('Could not send transaction', err);
+                  return;
+                }
+                $log.debug('Transaction broadcasted. Waiting for confirmation...');
+                var invoiceId = JSON.parse(payProDetails.merchant_data).invoiceId;
+                var dataSrc = {
+                  currency: currency,
+                  amount: amount,
+                  uuid: uuid,
+                  accessKey: accessKey,
+                  invoiceId: invoice.id,
+                  invoiceUrl: payProUrl,
+                  invoiceTime: invoice.invoiceTime
+                };
+                checkTransaction(1, dataSrc);
+              });
+            });
+          }, true); // Disable loader
+        });
+      });
+    });
+  };
+
+  $scope.showWalletSelector = function() {
+    $scope.walletSelectorTitle = 'Buy from';
+    $scope.showWallets = true;
+  };
+
+  $scope.onWalletSelect = function(wallet) {
+    $scope.wallet = wallet;
+  };
+
+  $scope.goBackHome = function() {
+    $scope.sendStatus = '';
+    $ionicHistory.nextViewOptions({
+      disableAnimate: true,
+      historyRoot: true
+    });
+    $ionicHistory.clearHistory();
+    var claimCode = $scope.mlGiftCard ? $scope.mlGiftCard.pin : null;
+    $state.go('tabs.home').then(function() {
+      $ionicHistory.nextViewOptions({
+        disableAnimate: true
+      });
+      $state.transitionTo('tabs.giftcards.mercadoLibre').then(function() {
+        $state.transitionTo('tabs.giftcards.mercadoLibre.cards', {
+          cardClaimCode: claimCode
+        });
+      });
+    });
+  };
+});