using System.Collections.Immutable;
using Connected;
using Connected.Entities;
using Connected.Net.Endpoints;
using Connected.ServiceModel;
using Connected.Services;

namespace Common.Net;

/// <summary>
/// Endpoints are singleton but their service is scoped so we must use Isolated database connections for all methods.
/// </summary>
internal sealed class QueryEndpoints : ServiceFunction<IDto, ImmutableList<IEndpoint>?>
{
	public QueryEndpoints(IEndpointCache cache)
	{
		Cache = cache;
	}

	private IEndpointCache Cache { get; }

	protected override async Task<ImmutableList<IEndpoint>?> OnInvoke()
	{
		return await (from dc in Cache
					  select dc).AsEntities<IEndpoint>();
	}
}
internal sealed class SelectEndpoint : ServiceFunction<PrimaryKeyArgs<int>, IEndpoint?>
{
	public SelectEndpoint(IEndpointCache cache)
	{
		Cache = cache;
	}

	private IEndpointCache Cache { get; }

	protected override async Task<IEndpoint?> OnInvoke()
	{
		return await (from dc in Cache
					  where dc.Id == Arguments.Id
					  select dc).AsEntity();
	}
}