//create contractEntitlementsAPI following the pattern of api/model/instance for other entities
/**
* Get All contract entitlements for given contact id
Query to fetch data is
CRM.api3('HRJobContract', 'get', {
  "sequential": 1,
  "contact_id": 206,
  "api.HRJobContract.getfulldetails": {"jobcontract_id":"$value.id"}
}).done(function(result) {
  // do something
});
will return
{

    "is_error": 0,
    "version": 3,
    "count": 1,
    "id": 2,
    "values": [
        {
            "id": "2",
            "contact_id": "206",
            "is_primary": "1",
            "deleted": "0",
            "is_current": "1",
            "api.HRJobContractRevision.get": {
                "is_error": 0,
                "version": 3,
                "count": 1,
                "id": 8,
                "values": [
                    {
                        "id": "8",
                        "jobcontract_id": "2",
                        "editor_uid": "1",
                        "created_date": "2017-03-28 12:08:46",
                        "effective_date": "2017-03-28",
                        "modified_date": "2017-03-28 12:08:48",
                        "details_revision_id": "8",
                        "health_revision_id": "8",
                        "hour_revision_id": "8",
                        "leave_revision_id": "8",
                        "pay_revision_id": "8",
                        "pension_revision_id": "8",
                        "role_revision_id": "8",
                        "deleted": "0",
                        "editor_name": "admin@example.com",
                        "api.HRJobLeave.get": {
                            "is_error": 0,
                            "version": 3,
                            "count": 3,
                            "values": [
                                {
                                    "id": "4",
                                    "leave_type": "1",
                                    "leave_amount": "20",
                                    "add_public_holidays": "1",
                                    "jobcontract_revision_id": "8"
                                },
                                {
                                    "id": "5",
                                    "leave_type": "2",
                                    "leave_amount": "10",
                                    "add_public_holidays": "0",
                                    "jobcontract_revision_id": "8"
                                },
                                {
                                    "id": "6",
                                    "leave_type": "3",
                                    "leave_amount": "5",
                                    "add_public_holidays": "0",
                                    "jobcontract_revision_id": "8"
                                }
                            ]
                        },
                        "api.HRJobDetails.get": {
                            "is_error": 0,
                            "version": 3,
                            "count": 1,
                            "id": 2,
                            "values": [
                                {
                                    "id": "2",
                                    "position": "developer",
                                    "title": "developer",
                                    "contract_type": "Contractor",
                                    "period_start_date": "2017-03-28",
                                    "location": "Home",
                                    "jobcontract_revision_id": "8"
                                }
                            ]
                        }
                    }
                ]
            }
        }
    ]
}
*/
getAllContractEntitlements: funciton (contactId,params) {
  params = params || {};
  params.contact_id = contactId

  return this.sendGET('HRJobContract', 'get', params, false)
    .then(function (data) {
      var contractEntitlements = [];

      _.each(data.values, function (contract) {
        var contractEntitlement = {};
        _.each(contract['api.HRJobContractRevision.get'].values, function (jobContractRevision) {
          _.each(jobContractRevision['api.HRJobLeave.get'].values, function (jobLeaves) {
            _.each(jobLeaves.values, function (jobLeave) {
              contractEntitlement.leaveType = jobLeave.leave_type;
              contractEntitlement.leaveAmount = jobLeave.leave_amount;
            });
          });
          _.each(jobContractRevision['api.HRJobDetails.get'].values, function (jobDetails) {
            _.each(jobDetails.values, function (jobDetail) {
              contractEntitlement.position = jobDetail.position;
              contractEntitlement.periodStartDate = jobDetail.period_start_date;
              contractEntitlement.periodEndDate = jobDetail.period_end_date;
            });
          });
          contractEntitlements.push(contractEntitlement);
        });
      });
      };
    });
  return contractEntitlements;
}