queue + local sqlite WIP

Azaion.Common/Database/DbFactory.cs

@@ -0,0 +1,65 @@
+using System.Diagnostics;
+using Azaion.Common.DTO;
+using Azaion.Common.DTO.Config;
+using LinqToDB;
+using LinqToDB.Mapping;
+using Microsoft.Extensions.Options;
+
+namespace Azaion.Common.Database;
+
+public interface IDbFactory
+{
+    Task<T> Run<T>(Func<AnnotationsDb, Task<T>> func);
+    Task Run(Func<AnnotationsDb, Task> func);
+}
+
+public class DbFactory : IDbFactory
+{
+    private readonly DataOptions _dataOptions;
+
+    public DbFactory(IOptions<AnnotationConfig> annConfig)
+    {
+        _dataOptions = LoadOptions(annConfig.Value.AnnotationsDbFile);
+    }
+
+    private DataOptions LoadOptions(string dbFile)
+    {
+        if (string.IsNullOrEmpty(dbFile))
+            throw new ArgumentException($"Empty AnnotationsDbFile in config!");
+
+        var dataOptions = new DataOptions()
+            .UseSQLiteOfficial($"Data Source={dbFile}")
+            .UseMappingSchema(AnnotationsDbSchemaHolder.MappingSchema);
+
+        _ = dataOptions.UseTracing(TraceLevel.Info, t => Console.WriteLine(t.SqlText));
+        return dataOptions;
+    }
+
+
+    public async Task<T> Run<T>(Func<AnnotationsDb, Task<T>> func)
+    {
+        await using var db = new AnnotationsDb(_dataOptions);
+        return await func(db);
+    }
+
+    public async Task Run(Func<AnnotationsDb, Task> func)
+    {
+        await using var db = new AnnotationsDb(_dataOptions);
+        await func(db);
+    }
+}
+
+public static class AnnotationsDbSchemaHolder
+{
+    public static readonly MappingSchema MappingSchema;
+
+    static AnnotationsDbSchemaHolder()
+    {
+        MappingSchema = new MappingSchema();
+        var builder = new FluentMappingBuilder(MappingSchema);
+
+        builder.Entity<AnnotationName>().HasTableName("annotations_queue");
+
+        builder.Build();
+    }
+}