const { Db } = require('mongodb')
Server = require('mongodb').Server,
BSON = require('mongodb').BSONNative,
conf = require('../../config.js').database

const db = function(callback) {
  this.rooms = false
  const t = this

  const db = new Db(conf.database, new Server(conf.hostname, conf.port), { native_parser: true })
  db.open((err, db) => {
    db.collection('rooms', (err, collection) => {
      // make sure we have an index on name
      collection.ensureIndex([['name', 1]], false, () => {})
      t.rooms = collection
    })
    callback()
  })
}

db.prototype = {
  clearRoom(room, callback) {
    this.rooms.remove({ name: room }, callback)
  },

  // theme commands
  setTheme(room, theme) {
    this.rooms.update(
      { name: room },
      { $set: { theme } }
    )
  },

  getTheme(room, callback) {
    this.rooms.findOne(
      { name: room },
      { theme: true },
      (err, room) => {
        if (room) {
          callback(room.theme)
        } else {
          callback()
        }
      }
    )
  },

  // revision commands
  setRevisions(room, revisions) {
    this.rooms.update(
      { name: room },
      { $set: { revisions } }
    )
  },

  getRevisions(room, callback) {
    this.rooms.findOne(
      { name: room },
      { revisions: true },
      (err, room) => {
        if (room) {
          callback(room.revisions)
        } else {
          callback()
        }
      }
    )
  },

  // Column commands
  createColumn(room, name, callback) {
    this.rooms.update(
      { name: room },
      { $push: { columns: name } },
      { upsert: true },
			 callback
    )
  },

  getAllColumns(room, callback) {
    this.rooms.findOne({ name: room }, { columns: true }, (err, room) => {
      if (room) {
        callback(room.columns)
      } else {
        callback()
      }
    })
  },

  deleteColumn(room) {
    this.rooms.update(
      { name: room },
      { $pop: { columns: 1 } }
    )
  },

  setColumns(room, columns) {
    this.rooms.update(
      { name: room },
      { $set: { columns } },
      { upsert: true }
    )
  },

  // Card commands
  createCard(room, id, card) {
    const doc = {}
    doc[`cards.${id}`] = card
    this.rooms.update(
      { name: room },
      { $set: doc },
      { upsert: true }
    )
  },

  getAllCards(room, callback) {
    this.rooms.findOne({ name: room }, { cards: true }, (err, room) => {
      if (room) {
        callback(room.cards)
      } else {
        callback()
      }
    })
  },

  cardEdit(room, id, text) {
    const doc = {}
    doc[`cards.${id}.text`] = text
    this.rooms.update(
      { name: room },
      { $set: doc }
    )
  },

  cardSetXY(room, id, x, y) {
    const doc = {}
    doc[`cards.${id}.x`] = x
    doc[`cards.${id}.y`] = y
    this.rooms.update(
      { name: room },
      { $set: doc }
    )
  },

  deleteCard(room, id) {
    const doc = {}
    doc[`cards.${id}`] = true
    this.rooms.update(
      { name: room },
      { $unset: doc }
    )
  },

  addSticker(room, cardId, stickerId) {
    const doc = {}
    doc[`cards.${cardId}.sticker`] = stickerId
    this.rooms.update(
      { name: room },
      { $set: doc }
    )
  },
  getBoardSize(room, callback) {
    this.rooms.findOne(
      { name: room },
      (err, room) => {
        if (room) {
          callback(room.size)
        } else {
          callback()
        }
      }
    )
  },
  setBoardSize(room, size) {
    this.rooms.update(
      { name: room },
      { $set: { size } }
    )
  }
}
exports.db = db