var db = require('./DBManager');
var avatars = {};
setInterval(() => {
  console.log('Clearing Cash');
  avatars = {};
}, 3 * 60 * 1000);
module.exports = {
  clearCash: () => {
    avatars = {};
  },
  sort: (a, b) => {
    return b.created_at - a.created_at;
  },
  response_400: (res, example, msg) => {
    res.statusCode = 400;
    var r = {
      example_body: example,
      status: 'Error',
      code: 400,
      message: 'Bad request, ' + (msg || 'see the example for more information')
    };
    res.send(r);
  },
  response_500: (res, msg) => {
    res.statusCode = 500;
    var r = {
      status: 'Error',
      code: 500,
      message: msg
    };
    res.send(r);
  },
  convertToUserObj: (user) => {
    return {
      id: user.key.id,
      username: user.data.username,
      password: user.data.password,
      email: user.data.email,
      creation_time: user.data.creation_time,
      avatar: user.data.avatar,
      liked_notes_id: user.data.liked_notes_id
    };
  },
  convertToNoteObj: (note, callback) => {
    if (!avatars[note.data.owner_id]) {
      console.log('Avatar Not In Cash... Getting new one');
      var key = db.key(['User', Number(note.data.owner_id)]);
      db.get(key, (err, entity) => {
        if (!err) {
          avatars[note.data.owner_id] = entity.data.avatar;
          console.log('Saved Avatar');
          callback({
            id: note.key.id,
            title: note.data.title,
            location: {
              lat: note.data.lat,
              lng: note.data.lng,
              address: note.data.address
            },
            body: note.data.body,
            owner_id: note.data.owner_id,
            is_public: note.data.is_public,
            created_at: note.data.created_at,
            likes: note.data.likes,
            tags: note.data.tags,
            avatar: entity.data.avatar
          });
        }
      });
    } else {
      console.log('Avatar found In Cash');
      callback({
        id: note.key.id,
        title: note.data.title,
        location: {
          lat: note.data.lat,
          lng: note.data.lng,
          address: note.data.address
        },
        body: note.data.body,
        owner_id: note.data.owner_id,
        is_public: note.data.is_public,
        created_at: note.data.created_at,
        likes: note.data.likes,
        tags: note.data.tags,
        avatar: avatars[note.data.owner_id]
      });
    }

  }
};