14 files changed, 484 insertions, 73 deletions
diff --git a/backend/Elements.Backend/Controllers/AuthController.cs b/backend/Elements.Backend/Controllers/AuthController.cs
new file mode 100644
index 0000000..56e7c3b
--- /dev/null
+++ b/backend/Elements.Backend/Controllers/AuthController.cs
@@ -0,0 +1,106 @@
+using System.Runtime.Serialization;
+using System.Security.Claims;
+using System.Text.Json;
+using Elements.Data;
+using Elements.Data.Models;
+using Google.Apis.Auth;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace Elements.Backend.Controllers;
+
+[ApiController]
+[Route("[controller]/[action]")]
+public class AuthController : ControllerBase
+{
+    private readonly IConfiguration _config;
+    private readonly ApplicationDbContext _dbContext;
+
+    public AuthController(IConfiguration config, ApplicationDbContext dbContext)
+    {
+        _config = config;
+        _dbContext = dbContext;
+    }
+
+    public class LoginModel
+    {
+        public required string GoogleToken { get; init; }
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> Login([FromBody] LoginModel model)
+    {
+        GoogleJsonWebSignature.Payload? payload = await VerifyGoogleIdToken(model.GoogleToken);
+        if (payload == null)
+            return Unauthorized();
+
+        User? user = await _dbContext.Users.SingleOrDefaultAsync(u => u.GoogleId == payload.Subject);
+        if (user != null)
+        {
+            //Check if user's name changed and update if it did
+            if (user.Name != payload.Name)
+                user.Name = payload.Name;
+        }
+        else
+        {
+            user = new User()
+            {
+                Name = payload.Name,
+                GoogleId = payload.Subject,
+                Elements = new List<Element>()
+            };
+
+            await _dbContext.Users.AddAsync(user);
+        }
+
+        await _dbContext.SaveChangesAsync();
+
+        List<Claim> claims = new()
+        {
+            new Claim("id", user.Id.ToString()),
+            new Claim(ClaimTypes.Role, "User")
+        };
+        ClaimsIdentity claimsIdentity = new(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+
+        AuthenticationProperties authProperties = new()
+        {
+            IsPersistent = true,
+            AllowRefresh = true
+        };
+
+        await HttpContext.SignInAsync(
+            CookieAuthenticationDefaults.AuthenticationScheme,
+            new ClaimsPrincipal(claimsIdentity),
+            authProperties);
+
+        var response = new
+        {
+            Id = user.Id.ToString()
+        };
+        
+        return Ok(JsonSerializer.Serialize(response));
+    }
+    
+    [HttpPost]
+    public async Task<IActionResult> Logout()
+    {
+        await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        return Ok();
+    }
+
+    private async Task<GoogleJsonWebSignature.Payload?> VerifyGoogleIdToken(string token)
+    {
+        try
+        {
+            GoogleJsonWebSignature.Payload? payload = await GoogleJsonWebSignature.ValidateAsync(token);
+            return payload;
+        }
+        catch (InvalidJwtException)
+        {
+            return null;
+        }
+    }
+}
+\ No newline at end of file
diff --git a/backend/Elements.Backend/Controllers/UserController.cs b/backend/Elements.Backend/Controllers/UserController.cs
new file mode 100644
index 0000000..bde93aa
--- /dev/null
+++ b/backend/Elements.Backend/Controllers/UserController.cs
@@ -0,0 +1,41 @@
+using System.Security.Claims;
+using System.Text.Json;
+using Elements.Data;
+using Elements.Data.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace Elements.Backend.Controllers;
+
+[ApiController]
+[Route("[controller]/[action]")]
+public class UserController: ControllerBase
+{
+    private readonly ApplicationDbContext _dbContext;
+
+    public UserController(ApplicationDbContext dbContext)
+    {
+        _dbContext = dbContext;
+    }
+    
+    [HttpGet]
+    [Authorize]
+    [Route("/user/{id:int}")]
+    public async Task<IActionResult> Users(int id)
+    {
+        IEnumerable<Claim> claims = User.Claims;
+        string? currentUserId = claims.FirstOrDefault(claim => claim.Type == "id")?.Value;
+        if (currentUserId == null)
+            return StatusCode(StatusCodes.Status500InternalServerError);
+        if (currentUserId != id.ToString())
+            return Unauthorized();
+
+        User? user = await _dbContext.Users.FirstOrDefaultAsync(user => user.Id == id);
+        if (user == null)
+            return StatusCode(StatusCodes.Status500InternalServerError);
+        
+        string userJson = JsonSerializer.Serialize(user);
+        return Ok(userJson);
+    }
+}
+\ No newline at end of file
diff --git a/backend/Elements.Backend/Controllers/WeatherForecastController.cs b/backend/Elements.Backend/Controllers/WeatherForecastController.cs
deleted file mode 100644
index 9a70e36..0000000
--- a/backend/Elements.Backend/Controllers/WeatherForecastController.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace Elements.Backend.Controllers;
-
-[ApiController]
-[Route("[controller]")]
-public class WeatherForecastController : ControllerBase
-{
-    private static readonly string[] Summaries = new[]
-    {
-        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-    };
-
-    private readonly ILogger<WeatherForecastController> _logger;
-
-    public WeatherForecastController(ILogger<WeatherForecastController> logger)
-    {
-        _logger = logger;
-    }
-
-    [HttpGet(Name = "GetWeatherForecast")]
-    public IEnumerable<WeatherForecast> Get()
-    {
-        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
-        {
-            Date = DateOnly.FromDateTime(DateTime.Now),
-            TemperatureC = Random.Shared.Next(-20, 55),
-            Summary = Summaries[Random.Shared.Next(Summaries.Length)]
-        })
-        .ToArray();
-    }
-}
diff --git a/backend/Elements.Backend/Elements.Backend.csproj b/backend/Elements.Backend/Elements.Backend.csproj
index 0c664a6..787d048 100644
--- a/backend/Elements.Backend/Elements.Backend.csproj
+++ b/backend/Elements.Backend/Elements.Backend.csproj
@@ -1,18 +1,27 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
-
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <Nullable>enable</Nullable>
-    <ImplicitUsings>enable</ImplicitUsings>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.5" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
-  </ItemGroup>
-
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>dae266ca-b349-4b87-a992-5470f9dd635d</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Google.Apis.Auth" Version="1.62.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="7.0.12" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.12">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.12" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.10" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Elements.Data\Elements.Data.csproj" />
-  </ItemGroup>
-
-</Project>
+  </ItemGroup>
+
+</Project>
diff --git a/backend/Elements.Backend/Program.cs b/backend/Elements.Backend/Program.cs
index 15eacee..50e5255 100644
--- a/backend/Elements.Backend/Program.cs
+++ b/backend/Elements.Backend/Program.cs
@@ -1,23 +1,54 @@
+using System.Text.Json;
+using Elements.Data;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authentication.Google;
+using Microsoft.EntityFrameworkCore;
+
 var builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
+builder.Services.AddRouting(options => options.LowercaseUrls = true);
+builder.Services.AddControllers().AddJsonOptions(options =>
+{
+    options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
+});
 
-builder.Services.AddControllers();
-// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
-builder.Services.AddEndpointsApiExplorer();
-builder.Services.AddSwaggerGen();
-
-var app = builder.Build();
-
-// Configure the HTTP request pipeline.
-if (app.Environment.IsDevelopment())
+if (builder.Environment.IsDevelopment())
 {
-    app.UseSwagger();
-    app.UseSwaggerUI();
+    builder.Services.AddDbContext<ApplicationDbContext>(options =>
+    {
+        options.UseSqlite("Data Source=elements.db");
+    });
 }
 
+builder.Services
+.AddAuthentication(options =>
+{
+    options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
+})
+.AddCookie(options =>
+{
+    options.Events = new()
+    {
+        OnRedirectToLogin = (ctx) =>
+        {
+            ctx.Response.StatusCode = 401;
+            return Task.CompletedTask;
+        },
+        OnRedirectToAccessDenied = (ctx) =>
+        {
+            ctx.Response.StatusCode = 401;
+            return Task.CompletedTask;
+        }
+
+    };
+});
+
+var app = builder.Build();
+
 app.UseHttpsRedirection();
 
+app.UseAuthentication();
 app.UseAuthorization();
 
 app.MapControllers();
diff --git a/backend/Elements.Backend/WeatherForecast.cs b/backend/Elements.Backend/WeatherForecast.cs
deleted file mode 100644
index 7c8962e..0000000
--- a/backend/Elements.Backend/WeatherForecast.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace Elements.Backend;
-
-public class WeatherForecast
-{
-    public DateOnly Date { get; set; }
-
-    public int TemperatureC { get; set; }
-
-    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-
-    public string? Summary { get; set; }
-}
diff --git a/backend/Elements.Data/ApplicationContextFactory.cs b/backend/Elements.Data/ApplicationContextFactory.cs
new file mode 100644
index 0000000..b8e4ebd
--- /dev/null
+++ b/backend/Elements.Data/ApplicationContextFactory.cs
@@ -0,0 +1,15 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace Elements.Data;
+
+public class ApplicationContextFactory : IDesignTimeDbContextFactory<ApplicationDbContext>
+{
+    public ApplicationDbContext CreateDbContext(string[] args)
+    {
+        DbContextOptionsBuilder<ApplicationDbContext> optionsBuilder = new();
+        optionsBuilder.UseSqlite("Data Source=elements.db");
+
+        return new ApplicationDbContext(optionsBuilder.Options);
+    }
+}
+\ No newline at end of file
diff --git a/backend/Elements.Data/ApplicationDbContext.cs b/backend/Elements.Data/ApplicationDbContext.cs
index 619719a..a912cc4 100644
--- a/backend/Elements.Data/ApplicationDbContext.cs
+++ b/backend/Elements.Data/ApplicationDbContext.cs
@@ -1,7 +1,14 @@
-using Microsoft.EntityFrameworkCore;
+using Elements.Data.Models;
+using Microsoft.EntityFrameworkCore;
 
 namespace Elements.Data;
 public class ApplicationDbContext : DbContext
 {
+    public DbSet<Element> Elements { get; set; }
+    public DbSet<User> Users { get; set; }
 
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
+    {
+        
+    }
 }
diff --git a/backend/Elements.Data/Elements.Data.csproj b/backend/Elements.Data/Elements.Data.csproj
index 408fea2..2fb1f63 100644
--- a/backend/Elements.Data/Elements.Data.csproj
+++ b/backend/Elements.Data/Elements.Data.csproj
@@ -7,6 +7,11 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.12">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.12" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.12" />
   </ItemGroup>
 
diff --git a/backend/Elements.Data/Migrations/20231020142907_Initial.Designer.cs b/backend/Elements.Data/Migrations/20231020142907_Initial.Designer.cs
new file mode 100644
index 0000000..1272d62
--- /dev/null
+++ b/backend/Elements.Data/Migrations/20231020142907_Initial.Designer.cs
@@ -0,0 +1,80 @@
+// <auto-generated />
+using Elements.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace Elements.Data.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20231020142907_Initial")]
+    partial class Initial
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.12");
+
+            modelBuilder.Entity("Elements.Data.Models.Element", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("State")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Elements");
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("GoogleId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.Element", b =>
+                {
+                    b.HasOne("Elements.Data.Models.User", null)
+                        .WithMany("Elements")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.User", b =>
+                {
+                    b.Navigation("Elements");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/backend/Elements.Data/Migrations/20231020142907_Initial.cs b/backend/Elements.Data/Migrations/20231020142907_Initial.cs
new file mode 100644
index 0000000..8257e5b
--- /dev/null
+++ b/backend/Elements.Data/Migrations/20231020142907_Initial.cs
@@ -0,0 +1,64 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Elements.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class Initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    GoogleId = table.Column<string>(type: "TEXT", nullable: false),
+                    Name = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Elements",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    UserId = table.Column<int>(type: "INTEGER", nullable: false),
+                    Name = table.Column<string>(type: "TEXT", nullable: false),
+                    State = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Elements", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Elements_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Elements_UserId",
+                table: "Elements",
+                column: "UserId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Elements");
+
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}
diff --git a/backend/Elements.Data/Migrations/ApplicationDbContextModelSnapshot.cs b/backend/Elements.Data/Migrations/ApplicationDbContextModelSnapshot.cs
new file mode 100644
index 0000000..b713511
--- /dev/null
+++ b/backend/Elements.Data/Migrations/ApplicationDbContextModelSnapshot.cs
@@ -0,0 +1,77 @@
+// <auto-generated />
+using Elements.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace Elements.Data.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    partial class ApplicationDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.12");
+
+            modelBuilder.Entity("Elements.Data.Models.Element", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("State")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Elements");
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("GoogleId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.Element", b =>
+                {
+                    b.HasOne("Elements.Data.Models.User", null)
+                        .WithMany("Elements")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Elements.Data.Models.User", b =>
+                {
+                    b.Navigation("Elements");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/backend/Elements.Data/Models/Element.cs b/backend/Elements.Data/Models/Element.cs
index 2f602e5..08f25a8 100644
--- a/backend/Elements.Data/Models/Element.cs
+++ b/backend/Elements.Data/Models/Element.cs
@@ -1,5 +1,16 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
 namespace Elements.Data.Models;
 
+public enum ElementState {
+    HasColor,
+    HasIcon
+}
+
 public class Element {
-    
+    public int Id {get; init;}
+    public required int UserId { get; init; }
+    public required string Name {get; init;}
+    public required ElementState State {get; init;}
 }
 \ No newline at end of file
diff --git a/backend/Elements.Data/Models/User.cs b/backend/Elements.Data/Models/User.cs
new file mode 100644
index 0000000..b44a1e2
--- /dev/null
+++ b/backend/Elements.Data/Models/User.cs
@@ -0,0 +1,9 @@
+namespace Elements.Data.Models;
+
+public class User
+{
+    public int Id { get; init; }
+    public required string GoogleId { get; init; }
+    public required string Name { get; set; }
+    public required ICollection<Element> Elements { get; set; }
+}
+\ No newline at end of file