Add Vulnerabilities Count by Day to Project GraphQL API

This change adds new GraphQL API to fetch vulnerabilities count by day
for given project.

doc/api/graphql/reference/gitlab_schema.graphql

@@ -12745,6 +12745,41 @@ type Project {
     state: [VulnerabilityState!]
   ): VulnerabilityConnection
 
+  """
+  Number of vulnerabilities per day for the project
+  """
+  vulnerabilitiesCountByDay(
+    """
+    Returns the elements in the list that come after the specified cursor.
+    """
+    after: String
+
+    """
+    Returns the elements in the list that come before the specified cursor.
+    """
+    before: String
+
+    """
+    Last day for which to fetch vulnerability history
+    """
+    endDate: ISO8601Date!
+
+    """
+    Returns the first _n_ elements from the list.
+    """
+    first: Int
+
+    """
+    Returns the last _n_ elements from the list.
+    """
+    last: Int
+
+    """
+    First day for which to fetch vulnerability history
+    """
+    startDate: ISO8601Date!
+  ): VulnerabilitiesCountByDayConnection
+
   """
   Vulnerability scanners reported on the project vulnerabilties
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -37270,6 +37270,87 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "vulnerabilitiesCountByDay",
+              "description": "Number of vulnerabilities per day for the project",
+              "args": [
+                {
+                  "name": "startDate",
+                  "description": "First day for which to fetch vulnerability history",
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "ISO8601Date",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "endDate",
+                  "description": "Last day for which to fetch vulnerability history",
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "ISO8601Date",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "after",
+                  "description": "Returns the elements in the list that come after the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "before",
+                  "description": "Returns the elements in the list that come before the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "first",
+                  "description": "Returns the first _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "last",
+                  "description": "Returns the last _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "VulnerabilitiesCountByDayConnection",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "vulnerabilityScanners",
               "description": "Vulnerability scanners reported on the project vulnerabilties",

ee/app/graphql/ee/types/project_type.rb

@@ -41,6 +41,12 @@ module EE
               description: 'Vulnerability scanners reported on the project vulnerabilties',
               resolver: ::Resolvers::Vulnerabilities::ScannersResolver
 
+        field :vulnerabilities_count_by_day,
+              ::Types::VulnerabilitiesCountByDayType.connection_type,
+              null: true,
+              description: 'Number of vulnerabilities per day for the project',
+              resolver: ::Resolvers::VulnerabilitiesCountPerDayResolver
+
         field :vulnerability_severities_count, ::Types::VulnerabilitySeveritiesCountType, null: true,
                description: 'Counts for each vulnerability severity in the project',
                resolver: ::Resolvers::VulnerabilitySeveritiesCountResolver

ee/changelogs/unreleased/235630-add-vulnerabilities-count-by-day-to-projects.yml

+---
+title: Add Vulnerabilities Count by Day to Project GraphQL API
+merge_request: 41856
+author:
+type: added

ee/spec/graphql/types/project_type_spec.rb

@@ -16,7 +16,7 @@ RSpec.describe GitlabSchema.types['Project'] do
   it 'includes the ee specific fields' do
     expected_fields = %w[
       vulnerabilities sast_ci_configuration vulnerability_scanners requirement_states_count
-      vulnerability_severities_count packages compliance_frameworks vulnerability_severities_count
+      vulnerability_severities_count packages compliance_frameworks vulnerabilities_count_by_day
       security_dashboard_path iterations cluster_agents
     ]