51 lines
1.8 KiB
C#
51 lines
1.8 KiB
C#
using Seasoned.Backend.DTOs;
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using Mscc.GenerativeAI;
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namespace Seasoned.Backend.Services;
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public class RecipeService : IRecipeService
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{
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private readonly string _apiKey;
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public RecipeService(IConfiguration config)
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{
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_apiKey = config["GeminiApiKey"] ?? throw new ArgumentNullException("API Key missing");
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}
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public async Task<RecipeResponseDto> ParseRecipeImageAsync(IFormFile image)
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{
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var googleAI = new GoogleAI(_apiKey);
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var model = googleAI.GenerativeModel("gemini-2.5-flash");
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using var ms = new MemoryStream();
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await image.CopyToAsync(ms);
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var base64Image = Convert.ToBase64String(ms.ToArray());
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var prompt = "Extract the recipe from this image. Return Title and Description.";
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// We create the request using the library's internal 'Content' structure
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// but we add the parts as simple objects to avoid the IPart cast crash.
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var content = new Content(Role.User);
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content.Parts = new List<IPart>();
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// Instead of 'new Part', we use the specific Part types provided by the library
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// that are GUARANTEED to implement IPart correctly.
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content.Parts.Add(new TextPart { Text = prompt });
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content.Parts.Add(new InlineDataPart { MimeType = "image/png", Data = base64Image });
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var request = new GenerateContentRequest
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{
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Contents = new List<Content> { content }
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};
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var response = await model.GenerateContent(request);
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return new RecipeResponseDto
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{
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Title = "Gemini 2.5 Analysis",
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Description = response.Text ?? "No text returned",
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Ingredients = new List<string>(),
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Instructions = new List<string>()
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};
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}
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} |