initial commit

Author: rohitvinnakota-codecov

api/public/v2/pull/serializers.py

@@ -1,23 +1,12 @@
 from rest_framework import serializers
 
-from api.public.v2.owner.serializers import OwnerSerializer
-from api.shared.commit.serializers import CommitTotalsSerializer
-from core.models import Pull, PullStates
+from compare.models import CommitComparison
+from core.models import Pull
+from services.comparison import ComparisonReport
 
 
 class PullSerializer(serializers.ModelSerializer):
-    pullid = serializers.IntegerField(label="pull ID number")
-    title = serializers.CharField(label="title of the pull")
-    base_totals = CommitTotalsSerializer(label="coverage totals of base commit")
-    head_totals = CommitTotalsSerializer(label="coverage totals of head commit")
-    updatestamp = serializers.DateTimeField(label="last updated timestamp")
-    state = serializers.ChoiceField(
-        label="state of the pull", choices=PullStates.choices
-    )
-    ci_passed = serializers.BooleanField(
-        label="indicates whether the CI process passed for the head commit of this pull"
-    )
-    author = OwnerSerializer(label="pull author")
+    patch = serializers.SerializerMethodField()
 
     class Meta:
         model = Pull
@@ -30,5 +19,42 @@ class Meta:
             "state",
             "ci_passed",
             "author",
+            "patch",
         )
         fields = read_only_fields
+
+    def get_patch(self, obj: Pull):
+        # 1) Fetch the CommitComparison for (compared_to, head)
+        comparison_qs = CommitComparison.objects.filter(
+            base_commit__commitid=obj.compared_to,
+            compare_commit__commitid=obj.head,
+            base_commit__repository_id=obj.repository_id,
+            compare_commit__repository_id=obj.repository_id,
+        ).select_related("compare_commit", "base_commit")
+
+        commit_comparison = comparison_qs.first()
+        if not commit_comparison or not commit_comparison.is_processed:
+            return None
+
+        # 2) Wrap it in ComparisonReport
+        cr = ComparisonReport(commit_comparison)
+
+        # 3) Summation of patch coverage across impacted files
+        hits = misses = partials = 0
+        for f in cr.impacted_files:
+            pc = f.patch_coverage
+            if pc:
+                hits += pc.hits
+                misses += pc.misses
+                partials += pc.partials
+
+        total_branches = hits + misses + partials
+        if total_branches == 0:
+            return None
+
+        return dict(
+            hits=hits,
+            misses=misses,
+            partials=partials,
+            coverage=100 * hits / total_branches,
+        )