Add database and dispenser logs

backend/.gitignore

@@ -1,4 +1,5 @@
 obj/
 bin/
 appsettings.json
+db.sqlite3
 

backend/ApplicationState.cs

@@ -1,9 +1,11 @@
 using MQTTnet.Client;
+using Microsoft.EntityFrameworkCore;
 
 namespace backend.Application
 {
 	public static class ApplicationState
 	{
 		public static IMqttClient? MqttClient { get; set; }
+		public static DbContext? DbContext { get; set; }
 	}
 }

backend/Controllers/DispenserController.cs

@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Mvc;
 using MQTTnet;
 using backend.Application;
+using backend.Models;
 
 namespace backend.Controllers;
 
@@ -17,6 +18,9 @@ public class DispenserController : ControllerBase
 			.WithPayload("dispense")
 			.Build();
 
+		ApplicationState.DbContext!.Add(new DispenserLog { Timestamp = DateTime.Now });
+		ApplicationState.DbContext!.SaveChanges();
+
 		ApplicationState.MqttClient!.PublishAsync(message, CancellationToken.None);
     }
 }

backend/DispenserContext.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using backend.Models;
+
+public class DispenserContext : DbContext
+{
+	public DbSet<DispenserLog> DispenserLogs { get; set; }
+
+	protected override void OnConfiguring(DbContextOptionsBuilder options)
+	{
+		options.UseSqlite("DataSource=db.sqlite3");
+	}
+}
+

backend/Migrations/20231205223426_CreateDispenserLog.Designer.cs

@@ -0,0 +1,38 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace backend.Migrations
+{
+    [DbContext(typeof(DispenserContext))]
+    [Migration("20231205223426_CreateDispenserLog")]
+    partial class CreateDispenserLog
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.0");
+
+            modelBuilder.Entity("backend.Models.DispenserLog", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("DispenserLogs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Migrations/20231205223426_CreateDispenserLog.cs

@@ -0,0 +1,35 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace backend.Migrations
+{
+    /// <inheritdoc />
+    public partial class CreateDispenserLog : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "DispenserLogs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Timestamp = table.Column<DateTime>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_DispenserLogs", x => x.Id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "DispenserLogs");
+        }
+    }
+}

backend/Migrations/DispenserContextModelSnapshot.cs

@@ -0,0 +1,35 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace backend.Migrations
+{
+    [DbContext(typeof(DispenserContext))]
+    partial class DispenserContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.0");
+
+            modelBuilder.Entity("backend.Models.DispenserLog", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("DispenserLogs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Models/DispenserLog.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace backend.Models;
+
+public class DispenserLog
+{
+	[Key]
+	[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+	public int Id { get; set; }
+
+	public DateTime Timestamp { get; set; }
+}
+

backend/Program.cs

@@ -45,6 +45,7 @@ var options = new MqttClientOptionsBuilder()
 await mqttClient.ConnectAsync(options, CancellationToken.None);
 
 ApplicationState.MqttClient = mqttClient;
+ApplicationState.DbContext = new DispenserContext();
 
 Console.WriteLine("Connected");
 

backend/backend.csproj

@@ -1,13 +1,18 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.13" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.0">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.0" />
     <PackageReference Include="MQTTnet" Version="4.3.1.873" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
   </ItemGroup>