###*
@namespace scoping into the hquery namespace
###
this.hQuery ||= {}

# =require core.coffee
###*
This class can be used to represent a functional status for a patient. Currently,
it is not a very close representation of functional status as it is represented
in the HL7 CCD, HITSP C32 or Consolidated CDA.

In the previously mentioned specifications, functional status may represented
using either a condition or result. Having "mixed" types of entries in a section
is currently not well supported in the existing Record class

Additionally, there is a mismatch between the data needed to calculate Stage 2
Meaningful Use Quality Measures and the data contained in patient summary
standards. The CQMs are checking to see if a functional status represented by
a result was patient supplied. Right now, results do not have a source, and
even if we were to use Provider as a source, it would need to be extended
to support patients.

To avoid this, the patient summary style functional status has been "flattened"
into this class. This model supports the information needed to calculate
Stage 2 MU CQMs. If importers are created from C32 or CCDA, the information
can be stored here, but it will be a lossy transformation.
@class
@augments hQuery.CodedEntry
@exports FunctionalStatus as hQuery.FunctionalStatus
###
class hQuery.FunctionalStatus extends hQuery.CodedEntry
  constructor: (@json) ->
    super(@json)

  ###*
  Either "condition" or "result"
  @returns {String}
  ###
  type: -> @json["type"]

  ###*
  A coded value. Like a code for patient supplied.
  @returns {hQuery.CodedValue}
  ###
  source: ->
    hQuery.createCodedValue @json["source"]

  ###*
  @returns {CodedValue}
  ###
  reaction: -> hQuery.createCodedValue @json['reaction']

  ###*
  @returns {CodedValue}
  ###
  method: -> hQuery.createCodedValue @json['method']