Fix: [PIPE-21769]: Import Policies to Terraform fix (#1067)

* Updated Policy Import Logic for TF Resource

* ChangeLogUodate

.changelog/1028.txt

@@ -0,0 +1,3 @@
+```release-note:fix
+harness_platform_policy: Fixed the import logic.
+```

docs/resources/platform_policy.md

@@ -86,6 +86,10 @@ REGO
 Import is supported using the following syntax:
 
 ```shell
-# Import using the organization id
-terraform import harness_platform_policy.example <organization_id>
+# Import account level policy
+terraform import harness_platform_policy.example <policy_id>
+# Import org level policy
+terraform import harness_platform_policy.example <org_id>/<policy_id>
+# Import proj level policy
+terraform import harness_platform_policy.example <org_id>/<project_id>/<policy_id>
 ```

internal/service/platform/policy/resource_policy.go

@@ -20,7 +20,7 @@ func ResourcePolicy() *schema.Resource {
 		UpdateContext: resourcePolicyCreateOrUpdate,
 		DeleteContext: resourcePolicyDelete,
 		CreateContext: resourcePolicyCreateOrUpdate,
-		Importer:      helpers.OrgResourceImporter,
+		Importer:      helpers.MultiLevelResourceImporter,
 
 		Schema: map[string]*schema.Schema{
 			"name": {

internal/service/platform/policy/resource_policy_test.go

@@ -80,6 +80,13 @@ func TestAccResourcePolicy(t *testing.T) {
 					resource.TestCheckResourceAttr(resourceName, "rego", updatedRego),
 				),
 			},
+			{
+				ResourceName:            resourceName,
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateIdFunc:       acctest.ProjectResourceImportStateIdFunc(resourceName),
+				ImportStateVerifyIgnore: []string{"description", "git_base_branch", "git_branch", "git_commit_msg", "git_import", "git_is_new_branch"},
+			},
 		},
 	})
 }