feat: notifications: report failed workspace builds (#14571)

coderd/notifications/notifications_test.go

@@ -844,6 +844,56 @@ func TestNotificationTemplatesCanRender(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "TemplateWorkspaceBuildsFailedReport",
+			id:   notifications.TemplateWorkspaceBuildsFailedReport,
+			payload: types.MessagePayload{
+				UserName: "Bobby",
+				Labels: map[string]string{
+					"template_name":         "bobby-first-template",
+					"template_display_name": "Bobby First Template",
+				},
+				Data: map[string]any{
+					"failed_builds":    4,
+					"total_builds":     55,
+					"report_frequency": "week",
+					"template_versions": []map[string]any{
+						{
+							"template_version_name": "bobby-template-version-1",
+							"failed_count":          3,
+							"failed_builds": []map[string]any{
+								{
+									"workspace_owner_username": "mtojek",
+									"workspace_name":           "workspace-1",
+									"build_number":             1234,
+								},
+								{
+									"workspace_owner_username": "johndoe",
+									"workspace_name":           "my-workspace-3",
+									"build_number":             5678,
+								},
+								{
+									"workspace_owner_username": "jack",
+									"workspace_name":           "workwork",
+									"build_number":             774,
+								},
+							},
+						},
+						{
+							"template_version_name": "bobby-template-version-2",
+							"failed_count":          1,
+							"failed_builds": []map[string]any{
+								{
+									"workspace_owner_username": "ben",
+									"workspace_name":           "cool-workspace",
+									"build_number":             8888,
+								},
+							},
+						},
+					},
+				},
+			},
+		},
 	}
 
 	allTemplates, err := enumerateAllTemplates(t)