/*
  Surgical safety checklist gating — encounter-start ECA rule.

  "Surgical Safety Checklist Needed" = an active surgical encounter (Encounter.type
  SNOMED 387713003) with no completed surgical-safety-checklist QuestionnaireResponse
  linked to that encounter. The card proposes a checklist completion task; the
  checklist itself renders in the clinical UI from Questionnaire/surgical-safety-checklist.
*/
library AtriusSurgicalSafety version '0.1.0'

using FHIR version '4.0.1'
using AtriusIn version '0.1.0'

include FHIRHelpers version '4.4.000' called FHIRHelpers
include AtriusCommon version '0.1.0'

codesystem "SNOMEDCT": 'http://snomed.info/sct'

code "Surgical procedure": '387713003' from "SNOMEDCT" display 'Surgical procedure'

context Patient

define "Checklist Questionnaire Url":
  'https://atrius.in/fhir/r4/atrius-in/Questionnaire/surgical-safety-checklist'

define "Active Surgical Encounters":
  [Encounter] E
    where E.status in { 'planned', 'arrived', 'in-progress' }
      and exists (E.type T where T ~ "Surgical procedure")

define "Completed Checklist Responses":
  [QuestionnaireResponse] QR
    where QR.status = 'completed'
      and StartsWith(QR.questionnaire.value, "Checklist Questionnaire Url")
      and exists (
        "Active Surgical Encounters" E
          where QR.encounter.references(E)
      )

define "Surgical Safety Checklist Needed":
  exists "Active Surgical Encounters"
    and not exists "Completed Checklist Responses"

Encoded data