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teams.net/Samples/Samples.AI/Handlers

Samples/Samples.AI/Handlers/FunctionCallingHandler.cs

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1using System.Text.Json;
2
3using Microsoft.Teams.AI.Annotations;
4using Microsoft.Teams.AI.Models.OpenAI;
5using Microsoft.Teams.AI.Prompts;
6using Microsoft.Teams.AI.Templates;
7using Microsoft.Teams.Api.Activities;
8using Microsoft.Teams.Apps;
9
10namespace Samples.AI.Handlers;
11
12public static class FunctionCallingHandler
13{
14 /// <summary>
15 /// Handle Pokemon search using PokeAPI
16 /// </summary>
17 public static async Task<string> PokemonSearchFunction([Param("pokemon_name")] string pokemonName)
18 {
19 Console.WriteLine($"[FUNCTION] pokemon_search called with pokemon_name='{pokemonName}'");
20
21 try
22 {
23 using var client = new HttpClient();
24 Console.WriteLine($"[FUNCTION] Fetching Pokemon data from PokeAPI for '{pokemonName}'...");
25
26 var response = await client.GetAsync($"https://pokeapi.co/api/v2/pokemon/{pokemonName.ToLower()}");
27
28 if (!response.IsSuccessStatusCode)
29 {
30 Console.WriteLine($"[FUNCTION] Pokemon '{pokemonName}' not found (status: {response.StatusCode})");
31 return $"Pokemon '{pokemonName}' not found";
32 }
33 else
34 {
35 Console.WriteLine($"[FUNCTION] Successfully retrieved data for Pokemon '{pokemonName}'");
36 }
37
38 var json = await response.Content.ReadAsStringAsync();
39 var data = JsonDocument.Parse(json);
40 var root = data.RootElement;
41
42 var name = root.GetProperty("name").GetString();
43 var height = root.GetProperty("height").GetInt32();
44 var weight = root.GetProperty("weight").GetInt32();
45 var types = root.GetProperty("types")
46 .EnumerateArray()
47 .Select(t => t.GetProperty("type").GetProperty("name").GetString())
48 .ToList();
49
50 var result = $"Pokemon {name}: height={height}, weight={weight}, types={string.Join(", ", types)}";
51 Console.WriteLine($"[FUNCTION] Successfully retrieved Pokemon data: {result}");
52
53 return result;
54 }
55 catch (Exception ex)
56 {
57 Console.WriteLine($"[FUNCTION] Error searching for Pokemon: {ex.Message}");
58 return $"Error searching for Pokemon: {ex.Message}";
59 }
60 }
61
62 /// <summary>
63 /// Handle single function calling - Pokemon search
64 /// </summary>
65 public static async Task HandlePokemonSearch(OpenAIChatModel model, IContext<MessageActivity> context, CancellationToken cancellationToken = default)
66 {
67 Console.WriteLine($"[HANDLER] Pokemon search handler invoked with text: '{context.Activity.Text}'");
68
69 var prompt = new OpenAIChatPrompt(model, new ChatPromptOptions
70 {
71 Instructions = new StringTemplate("You are a helpful assistant that can look up Pokemon for the user.")
72 });
73
74 // Register the pokemon search function
75 prompt.Function(
76 "pokemon_search",
77 "Search for pokemon information including height, weight, and types",
78 PokemonSearchFunction
79 );
80
81 Console.WriteLine("[HANDLER] Registered pokemon_search function, sending prompt to AI...");
82 var result = await prompt.Send(context.Activity.Text, cancellationToken);
83
84 if (result.Content != null)
85 {
86 Console.WriteLine($"[HANDLER] AI response received: {result.Content}");
87 var message = new MessageActivity
88 {
89 Text = result.Content,
90 }.AddAIGenerated();
91 await context.Send(message, cancellationToken);
92 }
93 else
94 {
95 Console.WriteLine("[HANDLER] No content received from AI");
96 await context.Reply("Sorry I could not find that pokemon", cancellationToken);
97 }
98 }
99
100}