'use strict'

const PooledResourceStateEnum = require('./PooledResourceStateEnum')

/**
 * @class
 * @private
 */
class PooledResource {
  constructor (resource) {
    this.creationTime = Date.now()
    this.lastReturnTime = null
    this.lastBorrowTime = null
    this.lastIdleTime = null
    this.obj = resource
    this.state = PooledResourceStateEnum.IDLE
  }

  // mark the resource as "allocated"
  allocate () {
    this.lastBorrowTime = Date.now()
    this.state = PooledResourceStateEnum.ALLOCATED
  }

  // mark the resource as "deallocated"
  deallocate () {
    this.lastReturnTime = Date.now()
    this.state = PooledResourceStateEnum.IDLE
  }

  invalidate () {
    this.state = PooledResourceStateEnum.INVALID
  }

  test () {
    this.state = PooledResourceStateEnum.VALIDATION
  }

  idle () {
    this.lastIdleTime = Date.now()
    this.state = PooledResourceStateEnum.IDLE
  }

  returning () {
    this.state = PooledResourceStateEnum.RETURNING
  }
}

module.exports = PooledResource
