feat: add enpoint for tree details

closes #85

backend/kernelCI_app/serializers.py

@@ -67,3 +67,17 @@ def get_test_status(self, obj):
             "null": obj.null_tests,
             "total": obj.total_tests
         }
+
+
+class TreeDetailsSerializer(serializers.Serializer):
+    id = serializers.CharField()
+    architecture = serializers.CharField()
+    config_name = serializers.CharField()
+    valid = serializers.BooleanField()
+    start_time = serializers.CharField()
+    duration = serializers.CharField()
+    compiler = serializers.CharField()
+    config_url = serializers.CharField()
+    log_url = serializers.CharField()
+    test_status = serializers.DictField()
+    misc = serializers.JSONField()

backend/kernelCI_app/urls.py

@@ -3,5 +3,6 @@
 
 
 urlpatterns = [
-    path('tree/', views.TreeView.as_view(), name='tree')
+    path('tree/', views.TreeView.as_view(), name='tree'),
+    path('tree/<str:commit_hash>', views.TreeDetails.as_view(), name='treeDetails')
 ]

backend/kernelCI_app/views.py

@@ -1,8 +1,8 @@
 from django.http import JsonResponse
 from django.views import View
 
-from kernelCI_app.models import Checkouts
-from kernelCI_app.serializers import TreeSerializer
+from kernelCI_app.models import Checkouts, Builds
+from kernelCI_app.serializers import TreeSerializer, TreeDetailsSerializer
 from kernelCI_app.utils import get_visible_record_identifiers
 
 
@@ -46,3 +46,87 @@ def get(self, _):
         serializer = TreeSerializer(checkouts, many=True)
         resp = JsonResponse(serializer.data, safe=False)
         return resp
+
+
+class TreeDetails(View):
+
+    def create_default_status(self):
+        return {"valid": 0, "invalid": 0, "null": 0}
+
+    def create_summary(self, builds_dict):
+        status_map = {True: 'valid', False: 'invalid', None: 'null'}
+
+        build_summ = self.create_default_status()
+        config_summ = {}
+        arch_summ = {}
+
+        for build in builds_dict:
+            status_key = status_map[build['valid']]
+            build_summ[status_key] += 1
+
+            if config := build['config_name']:
+                status = config_summ.get(config)
+                if not status:
+                    status = self.create_default_status()
+                    config_summ[config] = status
+                status[status_key] += 1
+
+            if arch := build['architecture']:
+                status = arch_summ.setdefault(arch, self.create_default_status())
+                status[status_key] += 1
+                compiler = build['compiler']
+                if compiler and compiler not in status.setdefault('compilers', []):
+                    status['compilers'].append(compiler)
+
+        return {"builds": build_summ, "configs": config_summ, "architectures": arch_summ}
+
+    def get_test_staus(self, build_id):
+        status_keys = ["fail_tests", "error_tests", "miss_tests", "pass_tests",
+                       "done_tests", "skip_tests", "null_tests", "total_tests"]
+        builds = Builds.objects.raw(
+            """
+            SELECT
+                builds.id,
+                COUNT(CASE WHEN tests.status = 'FAIL' THEN 1 END) AS fail_tests,
+                COUNT(CASE WHEN tests.status = 'ERROR' THEN 1 END) AS error_tests,
+                COUNT(CASE WHEN tests.status = 'MISS' THEN 1 END) AS miss_tests,
+                COUNT(CASE WHEN tests.status = 'PASS' THEN 1 END) AS pass_tests,
+                COUNT(CASE WHEN tests.status = 'DONE' THEN 1 END) AS done_tests,
+                COUNT(CASE WHEN tests.status = 'SKIP' THEN 1 END) AS skip_tests,
+                SUM(CASE WHEN tests.status IS NULL AND tests.id IS NOT NULL THEN 1 ELSE 0 END)
+                    AS null_tests,
+                COUNT(tests.id) AS total_tests
+            FROM
+                builds
+            LEFT JOIN
+                tests ON tests.build_id = builds.id
+            WHERE builds.id = %s
+            GROUP BY builds.id;
+            """,
+            [build_id]
+        )
+        return {k: getattr(builds[0], k) for k in status_keys}
+
+    def get(self, request, commit_hash):
+        builds = Builds.objects.raw(
+            """
+            SELECT
+                builds.id, builds.architecture, builds.config_name, builds.misc,
+                builds.config_url, builds.compiler, builds.valid,
+                builds.start_time, builds.duration, builds.log_url
+            FROM
+                builds
+            INNER JOIN
+                checkouts ON checkouts.id = builds.checkout_id
+            WHERE checkouts.git_commit_hash = %s;
+            """,
+            [commit_hash]
+        )
+
+        for build in builds:
+            build.test_status = self.get_test_staus(build.id)
+
+        data = TreeDetailsSerializer(builds, many=True).data
+        summary = self.create_summary(data)
+        resp = {"builds": data, "summary": summary}
+        return JsonResponse(resp, safe=False)