exports.gives = 'message_backlinks'

exports.create = function (api) {
  return function (msg) {
    var links = []
    for(var k in CACHE) {
      var _msg = CACHE[k]
      if(Array.isArray(_msg.content.mentions)) {
        for(var i = 0; i < _msg.content.mentions.length; i++)
          if(_msg.content.mentions[i].link == msg.key)
          links.push(k)
      }
    }
    return links
  }
}