(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/* global Y */
'use strict'

function extend (Y) {
  require('./RedBlackTree.js')(Y)
  class Transaction extends Y.Transaction {
    constructor (store) {
      super(store)
      this.store = store
      this.ss = store.ss
      this.os = store.os
      this.ds = store.ds
    }
  }
  class Database extends Y.AbstractDatabase {
    constructor (y, opts) {
      super(y, opts)
      this.os = new Y.utils.RBTree()
      this.ds = new Y.utils.RBTree()
      this.ss = new Y.utils.RBTree()
    }
    logTable () {
      var self = this
      self.requestTransaction(function * () {
        console.log('User: ', this.store.y.connector.userId, "==============================") // eslint-disable-line
        console.log("State Set (SS):", yield* this.getStateSet()) // eslint-disable-line
        console.log("Operation Store (OS):") // eslint-disable-line
        yield* this.os.logTable() // eslint-disable-line
        console.log("Deletion Store (DS):") //eslint-disable-line
        yield* this.ds.logTable() // eslint-disable-line
        if (this.store.gc1.length > 0 || this.store.gc2.length > 0) {
          console.warn('GC1|2 not empty!', this.store.gc1, this.store.gc2)
        }
        if (JSON.stringify(this.store.listenersById) !== '{}') {
          console.warn('listenersById not empty!')
        }
        if (JSON.stringify(this.store.listenersByIdExecuteNow) !== '[]') {
          console.warn('listenersByIdExecuteNow not empty!')
        }
        if (this.store.transactionInProgress) {
          console.warn('Transaction still in progress!')
        }
      }, true)
    }
    transact (makeGen) {
      var t = new Transaction(this)
      while (makeGen !== null) {
        var gen = makeGen.call(t)
        var res = gen.next()
        while (!res.done) {
          res = gen.next(res.value)
        }
        makeGen = this.getNextRequest()
      }
    }
    * destroy () {
      super.destroy()
      delete this.os
      delete this.ss
      delete this.ds
    }
  }
  Y.extend('memory', Database)
}

module.exports = extend
if (typeof Y !== 'undefined') {
  extend(Y)
}

},{"./RedBlackTree.js":2}],2:[function(require,module,exports){
'use strict'

/*
  This file contains a not so fancy implemantion of a Red Black Tree.
*/
module.exports = function (Y) {
  class N {
    // A created node is always red!
    constructor (val) {
      this.val = val
      this.color = true
      this._left = null
      this._right = null
      this._parent = null
      if (val.id === null) {
        throw new Error('You must define id!')
      }
    }
    isRed () { return this.color }
    isBlack () { return !this.color }
    redden () { this.color = true; return this }
    blacken () { this.color = false; return this }
    get grandparent () {
      return this.parent.parent
    }
    get parent () {
      return this._parent
    }
    get sibling () {
      return (this === this.parent.left)
        ? this.parent.right : this.parent.left
    }
    get left () {
      return this._left
    }
    get right () {
      return this._right
    }
    set left (n) {
      if (n !== null) {
        n._parent = this
      }
      this._left = n
    }
    set right (n) {
      if (n !== null) {
        n._parent = this
      }
      this._right = n
    }
    rotateLeft (tree) {
      var parent = this.parent
      var newParent = this.right
      var newRight = this.right.left
      newParent.left = this
      this.right = newRight
      if (parent === null) {
        tree.root = newParent
        newParent._parent = null
      } else if (parent.left === this) {
        parent.left = newParent
      } else if (parent.right === this) {
        parent.right = newParent
      } else {
        throw new Error('The elements are wrongly connected!')
      }
    }
    next () {
      if (this.right !== null) {
        // search the most left node in the right tree
        var o = this.right
        while (o.left !== null) {
          o = o.left
        }
        return o
      } else {
        var p = this
        while (p.parent !== null && p !== p.parent.left) {
          p = p.parent
        }
        return p.parent
      }
    }
    prev () {
      if (this.left !== null) {
        // search the most right node in the left tree
        var o = this.left
        while (o.right !== null) {
          o = o.right
        }
        return o
      } else {
        var p = this
        while (p.parent !== null && p !== p.parent.right) {
          p = p.parent
        }
        return p.parent
      }
    }
    rotateRight (tree) {
      var parent = this.parent
      var newParent = this.left
      var newLeft = this.left.right
      newParent.right = this
      this.left = newLeft
      if (parent === null) {
        tree.root = newParent
        newParent._parent = null
      } else if (parent.left === this) {
        parent.left = newParent
      } else if (parent.right === this) {
        parent.right = newParent
      } else {
        throw new Error('The elements are wrongly connected!')
      }
    }
    getUncle () {
      // we can assume that grandparent exists when this is called!
      if (this.parent === this.parent.parent.left) {
        return this.parent.parent.right
      } else {
        return this.parent.parent.left
      }
    }
  }

  class RBTree {
    constructor () {
      this.root = null
      this.length = 0
    }
    * findNext (id) {
      return yield* this.findWithLowerBound([id[0], id[1] + 1])
    }
    * findPrev (id) {
      return yield* this.findWithUpperBound([id[0], id[1] - 1])
    }
    findNodeWithLowerBound (from) {
      if (from === void 0) {
        throw new Error('You must define from!')
      }
      var o = this.root
      if (o === null) {
        return null
      } else {
        while (true) {
          if ((from === null || Y.utils.smaller(from, o.val.id)) && o.left !== null) {
            // o is included in the bound
            // try to find an element that is closer to the bound
            o = o.left
          } else if (from !== null && Y.utils.smaller(o.val.id, from)) {
            // o is not within the bound, maybe one of the right elements is..
            if (o.right !== null) {
              o = o.right
            } else {
              // there is no right element. Search for the next bigger element,
              // this should be within the bounds
              return o.next()
            }
          } else {
            return o
          }
        }
      }
    }
    findNodeWithUpperBound (to) {
      if (to === void 0) {
        throw new Error('You must define from!')
      }
      var o = this.root
      if (o === null) {
        return null
      } else {
        while (true) {
          if ((to === null || Y.utils.smaller(o.val.id, to)) && o.right !== null) {
            // o is included in the bound
            // try to find an element that is closer to the bound
            o = o.right
          } else if (to !== null && Y.utils.smaller(to, o.val.id)) {
            // o is not within the bound, maybe one of the left elements is..
            if (o.left !== null) {
              o = o.left
            } else {
              // there is no left element. Search for the prev smaller element,
              // this should be within the bounds
              return o.prev()
            }
          } else {
            return o
          }
        }
      }
    }
    * findWithLowerBound (from) {
      var n = this.findNodeWithLowerBound(from)
      return n == null ? null : n.val
    }
    * findWithUpperBound (to) {
      var n = this.findNodeWithUpperBound(to)
      return n == null ? null : n.val
    }
    * iterate (t, from, to, f) {
      var o = this.findNodeWithLowerBound(from)
      while (o !== null && (to === null || Y.utils.smaller(o.val.id, to) || Y.utils.compareIds(o.val.id, to))) {
        yield* f.call(t, o.val)
        o = o.next()
      }
      return true
    }
    * logTable (from, to, filter) {
      if (filter == null) {
        filter = function () {
          return true
        }
      }
      if (from == null) { from = null }
      if (to == null) { to = null }
      var os = []
      yield* this.iterate(this, from, to, function * (o) {
        if (filter(o)) {
          var o_ = {}
          for (var key in o) {
            if (typeof o[key] === 'object') {
              o_[key] = JSON.stringify(o[key])
            } else {
              o_[key] = o[key]
            }
          }
          os.push(o_)
        }
      })
      if (console.table != null) {
        console.table(os)
      }
    }
    * find (id) {
      var n
      return (n = this.findNode(id)) ? n.val : null
    }
    findNode (id) {
      if (id == null || id.constructor !== Array) {
        throw new Error('Expect id to be an array!')
      }
      var o = this.root
      if (o === null) {
        return false
      } else {
        while (true) {
          if (o === null) {
            return false
          }
          if (Y.utils.smaller(id, o.val.id)) {
            o = o.left
          } else if (Y.utils.smaller(o.val.id, id)) {
            o = o.right
          } else {
            return o
          }
        }
      }
    }
    * delete (id) {
      if (id == null || id.constructor !== Array) {
        throw new Error('id is expected to be an Array!')
      }
      var d = this.findNode(id)
      if (d == null) {
        throw new Error('Element does not exist!')
      }
      this.length--
      if (d.left !== null && d.right !== null) {
        // switch d with the greates element in the left subtree.
        // o should have at most one child.
        var o = d.left
        // find
        while (o.right !== null) {
          o = o.right
        }
        // switch
        d.val = o.val
        d = o
      }
      // d has at most one child
      // let n be the node that replaces d
      var isFakeChild
      var child = d.left || d.right
      if (child === null) {
        isFakeChild = true
        child = new N({id: 0})
        child.blacken()
        d.right = child
      } else {
        isFakeChild = false
      }

      if (d.parent === null) {
        if (!isFakeChild) {
          this.root = child
          child.blacken()
          child._parent = null
        } else {
          this.root = null
        }
        return
      } else if (d.parent.left === d) {
        d.parent.left = child
      } else if (d.parent.right === d) {
        d.parent.right = child
      } else {
        throw new Error('Impossible!')
      }
      if (d.isBlack()) {
        if (child.isRed()) {
          child.blacken()
        } else {
          this._fixDelete(child)
        }
      }
      this.root.blacken()
      if (isFakeChild) {
        if (child.parent.left === child) {
          child.parent.left = null
        } else if (child.parent.right === child) {
          child.parent.right = null
        } else {
          throw new Error('Impossible #3')
        }
      }
    }
    _fixDelete (n) {
      function isBlack (node) {
        return node !== null ? node.isBlack() : true
      }
      function isRed (node) {
        return node !== null ? node.isRed() : false
      }
      if (n.parent === null) {
        // this can only be called after the first iteration of fixDelete.
        return
      }
      // d was already replaced by the child
      // d is not the root
      // d and child are black
      var sibling = n.sibling
      if (isRed(sibling)) {
        // make sibling the grandfather
        n.parent.redden()
        sibling.blacken()
        if (n === n.parent.left) {
          n.parent.rotateLeft(this)
        } else if (n === n.parent.right) {
          n.parent.rotateRight(this)
        } else {
          throw new Error('Impossible #2')
        }
        sibling = n.sibling
      }
      // parent, sibling, and children of n are black
      if (n.parent.isBlack() &&
        sibling.isBlack() &&
        isBlack(sibling.left) &&
        isBlack(sibling.right)
      ) {
        sibling.redden()
        this._fixDelete(n.parent)
      } else if (n.parent.isRed() &&
        sibling.isBlack() &&
        isBlack(sibling.left) &&
        isBlack(sibling.right)
      ) {
        sibling.redden()
        n.parent.blacken()
      } else {
        if (n === n.parent.left &&
          sibling.isBlack() &&
          isRed(sibling.left) &&
          isBlack(sibling.right)
        ) {
          sibling.redden()
          sibling.left.blacken()
          sibling.rotateRight(this)
          sibling = n.sibling
        } else if (n === n.parent.right &&
          sibling.isBlack() &&
          isRed(sibling.right) &&
          isBlack(sibling.left)
        ) {
          sibling.redden()
          sibling.right.blacken()
          sibling.rotateLeft(this)
          sibling = n.sibling
        }
        sibling.color = n.parent.color
        n.parent.blacken()
        if (n === n.parent.left) {
          sibling.right.blacken()
          n.parent.rotateLeft(this)
        } else {
          sibling.left.blacken()
          n.parent.rotateRight(this)
        }
      }
    }
    * put (v) {
      if (v == null || v.id == null || v.id.constructor !== Array) {
        throw new Error('v is expected to have an id property which is an Array!')
      }
      var node = new N(v)
      if (this.root !== null) {
        var p = this.root // p abbrev. parent
        while (true) {
          if (Y.utils.smaller(node.val.id, p.val.id)) {
            if (p.left === null) {
              p.left = node
              break
            } else {
              p = p.left
            }
          } else if (Y.utils.smaller(p.val.id, node.val.id)) {
            if (p.right === null) {
              p.right = node
              break
            } else {
              p = p.right
            }
          } else {
            p.val = node.val
            return p
          }
        }
        this._fixInsert(node)
      } else {
        this.root = node
      }
      this.length++
      this.root.blacken()
      return node
    }
    _fixInsert (n) {
      if (n.parent === null) {
        n.blacken()
        return
      } else if (n.parent.isBlack()) {
        return
      }
      var uncle = n.getUncle()
      if (uncle !== null && uncle.isRed()) {
        // Note: parent: red, uncle: red
        n.parent.blacken()
        uncle.blacken()
        n.grandparent.redden()
        this._fixInsert(n.grandparent)
      } else {
        // Note: parent: red, uncle: black or null
        // Now we transform the tree in such a way that
        // either of these holds:
        //   1) grandparent.left.isRed
        //     and grandparent.left.left.isRed
        //   2) grandparent.right.isRed
        //     and grandparent.right.right.isRed
        if (n === n.parent.right && n.parent === n.grandparent.left) {
          n.parent.rotateLeft(this)
          // Since we rotated and want to use the previous
          // cases, we need to set n in such a way that
          // n.parent.isRed again
          n = n.left
        } else if (n === n.parent.left && n.parent === n.grandparent.right) {
          n.parent.rotateRight(this)
          // see above
          n = n.right
        }
        // Case 1) or 2) hold from here on.
        // Now traverse grandparent, make parent a black node
        // on the highest level which holds two red nodes.
        n.parent.blacken()
        n.grandparent.redden()
        if (n === n.parent.left) {
          // Case 1
          n.grandparent.rotateRight(this)
        } else {
          // Case 2
          n.grandparent.rotateLeft(this)
        }
      }
    }
  }

  Y.utils.RBTree = RBTree
}

},{}]},{},[1])