/*
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// [START parametermanager_render_param_version]

using Google.Cloud.ParameterManager.V1;
using System.Text;

public class RenderParameterVersionSample
{
    /// <summary>
    /// This function renders a parameter version using the Parameter Manager SDK for GCP.
    /// </summary>
    /// <param name="projectId">The ID of the project where the parameter is located.</param>
    /// <param name="parameterId">The ID of the parameter for which the version is to be rendered.</param>
    /// <param name="versionId">The ID of the version or alias (e.g. "latest") to be rendered.</param>
    /// <returns>The rendered parameter version data as a string.</returns>
    public string RenderParameterVersion(
        string projectId,
        string parameterId,
        string versionId)
    {
        // Create the client.
        ParameterManagerClient client = ParameterManagerClient.Create();

        // Build the resource name for the parameter version.
        ParameterVersionName parameterVersionName = new ParameterVersionName(projectId, "global", parameterId, versionId);

        // Call the API to render the parameter version.
        RenderParameterVersionResponse renderParameterVersionResponse = client.RenderParameterVersion(parameterVersionName);

        // Decode the base64 encoded data.
        string decodedData = Encoding.UTF8.GetString(renderParameterVersionResponse.RenderedPayload.ToByteArray());

        // Print the rendered parameter version data.
        Console.WriteLine($"Rendered parameter version payload: {decodedData}");

        // Return the rendered parameter version data.
        return decodedData;
    }
}
// [END parametermanager_render_param_version]
