'use strict';
var bitcore = require('bitcore');

angular.module('copayApp.controllers').controller('HistoryController',
  function($scope, $rootScope, $timeout, controllerUtils, notification, rateService) {
    controllerUtils.redirIfNotComplete();

    var w = $rootScope.wallet;

    $rootScope.title = 'History';
    $scope.loading = false;
    $scope.generating = false;
    $scope.lastShowed = false;

    $scope.currentPage = 1;
    $scope.itemsPerPage = 10;
    $scope.nbPages = 0;
    $scope.totalItems = 0;
    $scope.blockchain_txs = [];
    $scope.alternativeCurrency = [];



    $scope.selectPage = function(page) {
      $scope.currentPage = page;
      $scope.update();
    };



    $scope.downloadHistory = function() {
      var w = $rootScope.wallet;
      if (!w) return;

      $scope.generating = true;
      w.getTransactionHistory(function(err, res) {
        if (err) throw err;

        if (!res) return;

        var unit = w.settings.unitName;
        var data = res.items;
        var filename = "copay_history.csv";
        var csvContent = "data:text/csv;charset=utf-8,";
        csvContent += "Date,Amount(" + unit + "),Action,AddressTo,Comment";

        if (w.isShared()) {
          csvContent += ",Signers\n";
        } else {
          csvContent += "\n";
        }

        data.forEach(function(it, index) {
          var dataString = formatDate(it.minedTs || it.sentTs) + ',' + it.amount + ',' + it.action + ',' + formatString(it.addressTo) + ',' + formatString(it.comment);
          if (it.actionList) {
            dataString += ',' + formatSigners(it.actionList);
          }
          csvContent += index < data.length ? dataString + "\n" : dataString;
        });

        var encodedUri = encodeURI(csvContent);
        var link = document.createElement("a");
        link.setAttribute("href", encodedUri);
        link.setAttribute("download", filename);

        link.click();
        $scope.generating = false;
        $scope.$digest();

        function formatDate(date) {
          var dateObj = new Date(date);
          if (!dateObj) {
            log.error('Error formating a date');
            return 'DateError'
          }
          if (!dateObj.toJSON()) {
            return '';
          }

          return dateObj.toJSON().substring(0, 10);
        }

        function formatString(str) {
          if (!str) return '';

          if (str.indexOf('"') !== -1) {
            //replace all
            str = str.replace(new RegExp('"', 'g'), '\'');
          }

          //escaping commas
          str = '\"' + str + '\"';

          return str;
        }

        function formatSigners(item) {
          if (!item) return '';
          var str = '';
          item.forEach(function(it, index) {
            str += index == 0 ? w.publicKeyRing.nicknameForCopayer(it.cId) : '|' + w.publicKeyRing.nicknameForCopayer(it.cId);
          });
          return str;
        }

      })
    };




    $scope.update = function() {
      $scope.getTransactions();
    };

    $scope.show = function() {
      $scope.loading = true;
      setTimeout(function() {
        $scope.update();
      }, 1);
    };

    $scope.getTransactions = function() {
      var w = $rootScope.wallet;
      if (!w) return;

      $scope.blockchain_txs = w.cached_txs || [];
      $scope.loading = true;

      w.getTransactionHistory({
        currentPage: $scope.currentPage,
        itemsPerPage: $scope.itemsPerPage,
      }, function(err, res) {
        if (err) throw err;

        if (!res) {
          $scope.loading = false;
          $scope.lastShowed = false;
          return;
        }

        var items = res.items;

        _.each(items, function(r) {
          r.ts = r.minedTs || r.sentTs;
        });
        $scope.blockchain_txs = w.cached_txs = items;
        $scope.nbPages = res.nbPages;
        $scope.totalItems = res.nbItems;


        $scope.loading = false;
        setTimeout(function() {
          $scope.$digest();
        }, 1);
      });
    };


    $scope.hasAction = function(actions, action) {
      return actions.hasOwnProperty('create');
    };

    $scope.getShortNetworkName = function() {
      var w = $rootScope.wallet;
      return w.getNetworkName().substring(0, 4);
    };

  });