// Copyright (c) Microsoft. All rights reserved.

#pragma warning disable CS0618 // Type or member is obsolete - sample uses deprecated PersistentAgentsClientExtensions

// This sample shows how to create and use a simple AI agent with Microsoft Foundry Agents as the backend.

using Azure.AI.Agents.Persistent;
using Azure.Identity;
using Microsoft.Agents.AI;

var endpoint = Environment.GetEnvironmentVariable("AZURE_AI_PROJECT_ENDPOINT") ?? throw new InvalidOperationException("AZURE_AI_PROJECT_ENDPOINT is not set.");
var deploymentName = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYMENT_NAME") ?? "gpt-5.4-mini";

const string JokerName = "Joker";
const string JokerInstructions = "You are good at telling jokes.";

// Get a client to create/retrieve server side agents with.
// WARNING: DefaultAzureCredential is convenient for development but requires careful consideration in production.
// In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid
// latency issues, unintended credential probing, and potential security risks from fallback mechanisms.
var persistentAgentsClient = new PersistentAgentsClient(endpoint, new DefaultAzureCredential());

// You can create a server side persistent agent with the Azure.AI.Agents.Persistent SDK.
var agentMetadata = await persistentAgentsClient.Administration.CreateAgentAsync(
    model: deploymentName,
    name: JokerName,
    instructions: JokerInstructions);

// You can retrieve an already created server side persistent agent as an AIAgent.
AIAgent agent1 = await persistentAgentsClient.GetAIAgentAsync(agentMetadata.Value.Id);

// You can also create a server side persistent agent and return it as an AIAgent directly.
AIAgent agent2 = await persistentAgentsClient.CreateAIAgentAsync(
    model: deploymentName,
    name: JokerName,
    instructions: JokerInstructions);

// You can then invoke the agent like any other AIAgent.
AgentSession session = await agent1.CreateSessionAsync();
Console.WriteLine(await agent1.RunAsync("Tell me a joke about a pirate.", session));

// Cleanup for sample purposes.
await persistentAgentsClient.Administration.DeleteAgentAsync(agent1.Id);
await persistentAgentsClient.Administration.DeleteAgentAsync(agent2.Id);
