Chat GPT integration

backend/API/API.csproj

@@ -19,6 +19,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="MySql.EntityFrameworkCore" Version="8.0.8" />
+    <PackageReference Include="OpenAI" Version="2.1.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
   </ItemGroup>
 

backend/API/Controllers/RecipeController.cs

@@ -1,5 +1,6 @@
 using API.BusinessLogic;
 using API.Models.RecipeModels;
+using API.Services;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using System.Security.Claims;
@@ -8,13 +9,15 @@ namespace API.Controllers
 {
     [ApiController]
     [Route("api/[controller]")]
-    public class RecipeController :Controller
+    public class RecipeController : Controller
     {
         private readonly RecipeLogic _recipeLogic;
+        private readonly OpenAiRecipes _openAiRecipes;
 
-        public RecipeController(RecipeLogic recipeLogic)
+        public RecipeController(RecipeLogic recipeLogic, OpenAiRecipes openAiRecipes)
         {
             _recipeLogic = recipeLogic;
+            _openAiRecipes = openAiRecipes;
         }
 
         [Authorize]
@@ -57,5 +60,17 @@ namespace API.Controllers
         {
             return await _recipeLogic.DeleteRecipe(recipeId);
         }
+
+        [Authorize]
+        [HttpGet("chatbot/{dish}")]
+        public async Task<IActionResult> GenerateRecipe(string dish, string language, int numberOfRecipes = 5)
+        {
+            var recipes = await _openAiRecipes.ChatGPT(dish, language);
+            if (recipes.Content[0].Text == null || recipes.Content[0].Text == "")
+            {
+                return new ConflictObjectResult(new { message = "Could not connect to chatGPT" });
+            }
+            return new OkObjectResult(recipes.Content[0].Text);
+        }
     }
 }

backend/API/Services/OpenAiRecipes.cs

@@ -0,0 +1,36 @@
+using API.DBAccess;
+using OpenAI.Chat;
+
+namespace API.Services
+{
+    public class OpenAiRecipes
+    {
+        private readonly IConfiguration _configuration;
+
+        public OpenAiRecipes(IConfiguration configuration)
+        {
+            _configuration = configuration;
+        }
+
+        public async Task<ChatCompletion> ChatGPT(string message, string language, int numberOfRecipes = 5)
+        {
+            ChatClient client = new(
+                model: _configuration["OpenAI:Model"],
+                apiKey: _configuration["OpenAI:APIKey"]
+                );
+
+            string jsonStructure = "{ name: string, description: string,  directions: [string, string, ...], ingredients: [ { amount: number?, unit: string?, name: string }]}";
+
+            List<ChatMessage> messages = [
+                new SystemChatMessage($"You are a a helpful assistant. You give back {numberOfRecipes} recipes on the dish that you have been given. Answer in the language {language}. " +
+                $"Answer in .json format using this structure {jsonStructure}. " +
+                $"For the ingredients keep the names short ie. 'grated cheese' instead of 'cheese, grated (e.g., cheddar or gouda)'"),
+                new UserChatMessage(message),
+                ];
+
+            ChatCompletion chat = await client.CompleteChatAsync(messages);
+
+            return chat;
+        }
+    }
+}

backend/API/Startup.cs

@@ -5,6 +5,7 @@ using Microsoft.OpenApi.Models;
 using System.Text;
 using API.DBAccess;
 using API.BusinessLogic;
+using API.Services;
 
 namespace API
 {
@@ -29,6 +30,9 @@ namespace API
             services.AddScoped<UserLogic>();
             services.AddScoped<RecipeDBAccess>();
             services.AddScoped<RecipeLogic>();
+            services.AddScoped<ShoppingListDBAccess>();
+            services.AddScoped<ShoppingListLogic>();
+            services.AddScoped<OpenAiRecipes>();
 
             services.AddControllers();