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chloe
2026-03-05 04:52:15 +00:00
parent a99a477985
commit 2bbbbc746f
15 changed files with 551 additions and 93 deletions
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3
Seasoned.Backend/Controllers/RecipeController.cs
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@@ -5,12 +5,11 @@ using Seasoned.Backend.DTOs;
namespace Seasoned.Backend.Controllers;
[ApiController]
[Route("api/[controller]")]
[Route("api/recipe")]
public class RecipeController : ControllerBase
{
private readonly IRecipeService _recipeService;
// Dependency Injection: The service is "injected" here
public RecipeController(IRecipeService recipeService)
{
_recipeService = recipeService;

17
Seasoned.Backend/Data/ApplicationDbContext.cs Normal file
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@@ -0,0 +1,17 @@
using Microsoft.EntityFrameworkCore;
using Seasoned.Backend.Models;
namespace Seasoned.Backend.Data;
public class ApplicationDbContext : DbContext
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
: base(options) { }
public DbSet<Recipe> Recipes { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.HasPostgresExtension("vector");
}
}

64
Seasoned.Backend/Data/Migrations/20260305044721_SeasonedInit.Designer.cs generated Normal file
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@@ -0,0 +1,64 @@
// <auto-generated />
using System;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using Seasoned.Backend.Data;
#nullable disable
namespace Seasoned.Backend.Data.Migrations
{
[DbContext(typeof(ApplicationDbContext))]
[Migration("20260305044721_SeasonedInit")]
partial class SeasonedInit
{
/// <inheritdoc />
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "9.0.2")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "vector");
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Seasoned.Backend.Models.Recipe", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<DateTime>("CreatedAt")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.IsRequired()
.HasColumnType("text");
b.PrimitiveCollection<List<string>>("Ingredients")
.IsRequired()
.HasColumnType("text[]");
b.PrimitiveCollection<List<string>>("Instructions")
.IsRequired()
.HasColumnType("text[]");
b.Property<string>("Title")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Recipes");
});
#pragma warning restore 612, 618
}
}
}

44
Seasoned.Backend/Data/Migrations/20260305044721_SeasonedInit.cs Normal file
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@@ -0,0 +1,44 @@
using System;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore.Migrations;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
#nullable disable
namespace Seasoned.Backend.Data.Migrations
{
/// <inheritdoc />
public partial class SeasonedInit : Migration
{
/// <inheritdoc />
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.AlterDatabase()
.Annotation("Npgsql:PostgresExtension:vector", ",,");
migrationBuilder.CreateTable(
name: "Recipes",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
Title = table.Column<string>(type: "text", nullable: false),
Description = table.Column<string>(type: "text", nullable: false),
Ingredients = table.Column<List<string>>(type: "text[]", nullable: false),
Instructions = table.Column<List<string>>(type: "text[]", nullable: false),
CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_Recipes", x => x.Id);
});
}
/// <inheritdoc />
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "Recipes");
}
}
}

61
Seasoned.Backend/Data/Migrations/ApplicationDbContextModelSnapshot.cs Normal file
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@@ -0,0 +1,61 @@
// <auto-generated />
using System;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using Seasoned.Backend.Data;
#nullable disable
namespace Seasoned.Backend.Data.Migrations
{
[DbContext(typeof(ApplicationDbContext))]
partial class ApplicationDbContextModelSnapshot : ModelSnapshot
{
protected override void BuildModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "9.0.2")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "vector");
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Seasoned.Backend.Models.Recipe", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<DateTime>("CreatedAt")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.IsRequired()
.HasColumnType("text");
b.PrimitiveCollection<List<string>>("Ingredients")
.IsRequired()
.HasColumnType("text[]");
b.PrimitiveCollection<List<string>>("Instructions")
.IsRequired()
.HasColumnType("text[]");
b.Property<string>("Title")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Recipes");
});
#pragma warning restore 612, 618
}
}
}

11
Seasoned.Backend/Models/Recipe.cs Normal file
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@@ -0,0 +1,11 @@
namespace Seasoned.Backend.Models;
public class Recipe
{
public int Id { get; set; }
public string Title { get; set; } = string.Empty;
public string Description { get; set; } = string.Empty;
public List<string> Ingredients { get; set; } = new();
public List<string> Instructions { get; set; } = new();
public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
}

24
Seasoned.Backend/Program.cs
View File

@@ -1,10 +1,18 @@
using Seasoned.Backend.Services;
using Microsoft.AspNetCore.HttpOverrides;
using System.Text.Json;
using Microsoft.EntityFrameworkCore;
using Seasoned.Backend.Data;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddScoped<IRecipeService, RecipeService>();
builder.Services.AddControllers();
builder.Services.AddControllers()
.AddJsonOptions(options => {
options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
});
builder.Services.AddOpenApi();
builder.Services.AddCors(options =>
@@ -17,7 +25,20 @@ builder.Services.AddCors(options =>
});
});
builder.Services.AddDbContext<ApplicationDbContext>(options =>
options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection"),
o => o.UseVector()));
var app = builder.Build();
using (var scope = app.Services.CreateScope())
{
var db = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
db.Database.EnsureCreated();
}
app.UseDefaultFiles();
app.UseStaticFiles();
app.UseCors("AllowAll");
if (app.Environment.IsDevelopment())
@@ -26,4 +47,5 @@ if (app.Environment.IsDevelopment())
}
app.MapControllers();
app.MapFallbackToFile("index.html");
app.Run();

7
Seasoned.Backend/Seasoned.Backend.csproj
View File

@@ -10,6 +10,13 @@
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.13" />
<PackageReference Include="Mscc.GenerativeAI" Version="2.2.8" />
<PackageReference Include="Pgvector.EntityFrameworkCore" Version="0.3.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.2" />
</ItemGroup>
</Project>

57
Seasoned.Backend/Services/RecipeService.cs
View File

@@ -2,7 +2,8 @@ using Seasoned.Backend.DTOs;
using Mscc.GenerativeAI;
using Microsoft.AspNetCore.Http;
using System.IO;
using System.Text.Json;
using System.Text.Json.Serialization;
namespace Seasoned.Backend.Services;
public class RecipeService : IRecipeService
@@ -11,7 +12,7 @@ public class RecipeService : IRecipeService
public RecipeService(IConfiguration config)
{
_apiKey = config["GeminiApiKey"] ?? throw new ArgumentNullException("API Key missing");
_apiKey = config["GEMINI_API_KEY"] ?? throw new ArgumentNullException("API Key missing");
}
public async Task<RecipeResponseDto> ParseRecipeImageAsync(IFormFile image)
@@ -23,27 +24,55 @@ public class RecipeService : IRecipeService
await image.CopyToAsync(ms);
var base64Image = Convert.ToBase64String(ms.ToArray());
// 1. Better Prompt: Tell Gemini exactly what the JSON should look like
var prompt = @"Extract the recipe from this image.
Return a JSON object with exactly these fields:
var prompt = @"Extract the recipe details from this image.
IMPORTANT: Return ONLY a raw JSON string.
DO NOT include markdown formatting (no ```json).
DO NOT include any text before or after the JSON.
All property names and string values MUST be enclosed in double quotes.
JSON structure:
{
""title"": ""string"",
""description"": ""string"",
""ingredients"": [""string""],
""instructions"": [""string""]
""ingredients"": [""string"", ""string""],
""instructions"": [""string"", ""string""]
}";
// 2. Set the Response MIME Type to application/json
var config = new GenerationConfig { ResponseMimeType = "application/json" };
var config = new GenerationConfig {
ResponseMimeType = "application/json",
Temperature = 0.1f
};
var request = new GenerateContentRequest(prompt, config);
request.AddMedia(base64Image, "image/png");
await Task.Run(() => request.AddMedia(base64Image, "image/png"));
var response = await model.GenerateContent(request);
string rawText = response.Text?.Trim() ?? "";
// 3. Use System.Text.Json to turn that string back into our DTO
var options = new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true };
var result = System.Text.Json.JsonSerializer.Deserialize<RecipeResponseDto>(response.Text, options);
int start = rawText.IndexOf('{');
int end = rawText.LastIndexOf('}');
return result ?? new RecipeResponseDto { Title = "Error parsing JSON" };
if (start == -1 || end == -1)
{
return new RecipeResponseDto { Title = "Error", Description = "AI failed to generate a valid JSON block." };
}
string cleanJson = rawText.Substring(start, (end - start) + 1);
try
{
var options = new JsonSerializerOptions { PropertyNameCaseInsensitive = true };
var result = JsonSerializer.Deserialize<RecipeResponseDto>(cleanJson, options);
return result ?? new RecipeResponseDto { Title = "Empty Response" };
}
catch (JsonException ex)
{
Console.WriteLine($"Raw AI Output: {rawText}");
Console.WriteLine($"Failed to parse JSON: {ex.Message}");
return new RecipeResponseDto {
Title = "Parsing Error",
Description = "The AI response was malformed. Check logs."
};
}
}
}