具有重复键名的AngularJS排序数组

Question

我有这样的api回复： -

"leads": [{
        "_id": "qasim@obg.ae",
        "actions": {
            "email": {
                "count": 75
            },
            "chat": {
                "count": 57
            },
            "email": {
                "count": 11
            }
        },
        "data": {
            "agent": {
                "name": "Muhammad Qasim"
            }
        }
    }, {
        "_id": "dana@obg.ae",
        "actions": {
            "chat": {
                "count": 37
            },
            "email": {
                "count": 11
            },
            "call": {
                "count": 3
            },
            "manual": {
                "count": 3
            }
        },
        "data": {
            "agent": {
                "name": "Dana Elshibekova"
            }
        }
    }, {
        "_id": "tatiana@obg.ae",
        "actions": {
            "chat": {
                "count": 21
            },
            "manual": {
                "count": 5
            },
            "call": {
                "count": 3
            },
            "email": {
                "count": 3
            }
        },
        "data": {
            "agent": {
                "name": "Tatiana Shigaeva"
            }
        }
    }
}]

HTML：

<ul>
    <li ng-repeat="agent in leads | limitTo: 10">
        <a href="agent/{{agent._id}}">
            <div class="col s5">{{agent.data.agent.name}}</div>
            <div class="col s2">{{agent.actions.call.count}} <span ng-if="!agent.actions.call.count">0 </span>Calls</div>
            <div class="col s2">{{agent.actions.email.count}} <span ng-if="!agent.actions.email.count">0 </span>Emails</div>
            <div class="col s2">{{agent.actions.chat.count}} <span ng-if="!agent.actions.chat.count">0 </span>Chats</div>
        </a>
    </li>
</ul>

我有两个带有点击功能的按钮，我想对最高的email.count和最低的email.count进行排序

注意：我在email.count和chat.count以及call.count中有计数/值。

如何在angularjs中对此类数据进行排序，其中json键重复为call，email和chats的计数。

我正在使用AngularJS v1.6.1