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'use strict';

var _ = require('lodash');
var Chance = require('chance');
var Factory = require('rosie').Factory;

function getExternalTransaction(chance) {

  function getAmount() {
    return chance.floating({
      fixed: 2,
      min: 1,
      max: 500
    });
  }

  function getId() {
    return chance.natural({
      min: 1,
      max: 99999
    });
  }

  Factory.define('externalTransaction')
  .attr('external_account_id', chance.hash({length: 64}))
  .attr('source_amount', getAmount())
  .attr('source_currency', chance.currency().code)
  .attr('source_account_id', getId())
  .attr('destination_amount', getAmount())
  .attr('destination_currency', chance.currency().code)
  .attr('destination_account_id', getId())
  .attr('amount', getAmount())
  .attr('currency', chance.currency().code)
  .attr('invoice_id', 'bc7e8a24e2911a5827c9b33d618531ef094937f2b3803a591c625d0ede1fffc6')
  .attr('memos', chance.sentence({words: 5}))
  .attr('deposit', true)
  .attr('data', {})
  .attr('status', 'invoice')
  .attr('ripple_transaction_id', null)
  .attr('uid', getId().toString())
  .attr('to_account_id', getId());

  return Factory.build('externalTransaction');
}

function makeValidTransactions(howMany, seed) {
  howMany = howMany || 1;
  seed = seed || Math.random();

  var transactionsData = (
    _.times(howMany, function() {
    var chance = new Chance(seed);

    return getExternalTransaction(chance);
  }));

  return transactionsData;
}

/*eslint-disable max-len*/
var apiResponse = {
  success: function(originalResponse, updates) {
    updates = updates || {};

    // construct working response from original data
    // and specific data added by sequelize
    var response = {
      external_transactions: [_.extend({}, {
        id: updates.id,
        createdAt: updates.createdAt,
        updatedAt: updates.updatedAt}, originalResponse)
      ],
      success: true
    };

    return response;
  },

  error: {
  }
};

/*eslint-enable*/

module.exports = {
  transactions: {
    valid: makeValidTransactions,
    invalid: {}
  },
  apiResponse: {
    success: apiResponse.success,
    error: apiResponse.error
  }
};