jimfuqian/BB2-3280-C4DIC POC: Enrich c4dic coverage w supporting image (#1241)

* back end changes: enrich c4dic coverage w supporting image

* fix linting

* fix deps

* fix linting

* fix typos

Author: JFU-NAVA-PBC

Dockerfile

@@ -10,4 +10,5 @@ ENV PATH="/tmp/venv/bin:${PATH}"
 RUN pip install --upgrade pip
 RUN pip install --upgrade pip-tools
 RUN pip install --upgrade setuptools
+RUN pip install jsonpath-ng
 RUN pip install -r requirements/requirements.dev.txt --no-index --find-links ./vendor/

Dockerfiles/readme.md

@@ -1,4 +1,4 @@
-# Build, Tag, and Publish integration and selenium tests ECR iamge
+# Build, Tag, and Publish integration and selenium tests ECR image
 
 Go to BB2 local repo base directory and do the followings (assume aws cli installed and configured properly):
 

apps/fhir/bluebutton/views/b64card.py

@@ -1,3 +1,7 @@
+import copy
+from jsonpath_ng.ext import parse as ext_parse
+from rest_framework import (permissions)
+from rest_framework.response import Response
 from voluptuous import (
     Required,
     All,
@@ -7,15 +11,86 @@
     Schema,
     REMOVE_EXTRA,
 )
-from rest_framework import (permissions)
-from rest_framework.response import Response
 
 from apps.fhir.bluebutton.constants import DEFAULT_PAGE_SIZE, MAX_PAGE_SIZE
 from apps.fhir.bluebutton.views.generic import FhirDataView
 from apps.fhir.bluebutton.views.home import get_response_json
 from apps.authorization.permissions import DataAccessGrantPermission
 from apps.capabilities.permissions import TokenHasProtectedCapability
 from ..permissions import (SearchCrosswalkPermission, ResourcePermission, ApplicationActivePermission)
+from apps.fhir.bluebutton.views.b64card import B64_BLU_CARD, B64_RED_BLU_CARD, B64_BLU_CARD_BG, B64_HUMANA_PTD
+
+
+# image mapping to part A, B, C, D
+# A: B64_BLU_CARD_BG large vertical figma card as background
+# B: B64_RED_BLU_CARD classic medicare card image
+# C: B64_BLU_CARD horizontal figma card
+# D: B64_HUMANA_PTD medicare RX humana part D card
+INS_TYPE2CARD = {
+    "Part A": ''.join(B64_BLU_CARD_BG.splitlines()),
+    "Part B": ''.join(B64_RED_BLU_CARD.splitlines()),
+    "Part C": ''.join(B64_BLU_CARD.splitlines()),
+    "Part D": ''.join(B64_HUMANA_PTD.splitlines())
+}
+
+C4BB_COVERAGE_PROFILE_URL = "http://hl7.org/fhir/us/carin-bb/StructureDefinition/C4BB-Coverage"
+
+C4DIC_COVERAGE_PROFILE_URL = "http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-Coverage"
+
+C4DIC_SUPPORTING_IMAGE_EXT = {
+    "extension": [
+        {
+            "url": "description",
+            "valueString": "Beneficiary's proof of insurance"
+        },
+        {
+            "url": "image",
+            "valueAttachment": {
+                "contentType": "image/png",
+                "data": "<replace with base64 encoded image png here>"
+            }
+        },
+        {
+            "url": "label",
+            "valueString": "CMS Insurance card"
+        }
+    ],
+    "url": "http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-SupportingImage-extension"
+}
+
+
+# POC helper
+def lookup_by_path(expr, json_obj):
+    jsonpath_expr = ext_parse(expr)
+    return jsonpath_expr.find(json_obj)
+
+
+# POC helper
+def lookup_1_and_get(expr, attribute, json_obj):
+    r = lookup_by_path(expr, json_obj)
+    if r and isinstance(r, list):
+        return r[0].value[attribute]
+
+
+# POC helper: generate supporting image extension per coverage class type
+def get_supporting_image_extension(b64encoded: str):
+    ext = copy.deepcopy(C4DIC_SUPPORTING_IMAGE_EXT)
+    for e in ext['extension']:
+        if e['url'] == 'image':
+            e['valueAttachment']['data'] = b64encoded
+            break
+    return ext
+
+
+# POC helper
+def enrich_supporting_image(resp: Response):
+    for e in resp.data['entry']:
+        extensions = e['resource']['extension']
+        class_type = lookup_1_and_get("$.resource.class[?(@.type.coding[0].code=='plan')]", "value", e)
+        class_type = "Part A" if class_type is None else class_type
+        extensions.append(get_supporting_image_extension(INS_TYPE2CARD[class_type]))
+
+    return resp
 
 
 class SearchView(FhirDataView):
@@ -41,7 +116,8 @@ class SearchView(FhirDataView):
     QUERY_SCHEMA = {
         Required('startIndex', default=0): Coerce(int),
         Required('_count', default=DEFAULT_PAGE_SIZE): All(Coerce(int), Range(min=0, max=MAX_PAGE_SIZE)),
-        '_lastUpdated': [Match(REGEX_LASTUPDATED_VALUE, msg="the _lastUpdated operator is not valid")]
+        '_lastUpdated': [Match(REGEX_LASTUPDATED_VALUE, msg="the _lastUpdated operator is not valid")],
+        '_profile': Match('.+', msg="_profile value takes a non empty url like string")
     }
 
     def __init__(self, version=1):
@@ -100,10 +176,12 @@ def build_parameters(self, request, *args, **kwargs):
     def get(self, request, *args, **kwargs):
         profile = request.query_params.get('_profile', '')
         return_c4dic = False
-        if return_c4dic and profile == "http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-Coverage":
+        if return_c4dic and profile == C4DIC_COVERAGE_PROFILE_URL:
             return Response(get_response_json("bfd-c4dic-coverage-search"))
         else:
-            return super().get(request, *args, **kwargs)
+            resp = super().get(request, *args, **kwargs)
+            # C4DIC POC: inject c4dic supportingImage extension if the _profile indicate C4DIC Coverage search
+            return enrich_supporting_image(resp) if profile == C4DIC_COVERAGE_PROFILE_URL else resp
 
 
 class SearchViewExplanationOfBenefit(SearchView):